14^th Annual Conference on Crop Science and Agriculture November 29-30, 2018 Bali, Indonesia

Chair

Jeffrey Bennetzen

University of Georgia, USA

Session Introduction

Narayana S Mavarkar

University of Agricultural and Horticultural Sciences, India

Title: Influence of water soluble water soluble fertilizers on yield maximization of pulses of southern transitional zone of Karnataka

Time : 12:00-12:30

Biography:

Narayana S Mavarkar has completed his PhD from University of Agricultural Sciences, GKVK, Bangalore. He is currently working as a Professor and Head,

Department of Agronomy, Navile, Shimoga. He has published more than 50 papers in reputed journals and has been serving as a Program Coordinator NSS, Cell UAHS, Naile Shivamogga.

Abstract:

A fi eld experiment entitled infl uence of water soluble water soluble fertilizers on yield maximization of pulses of southern transitional zone of Karnataka” was conducted at Zonal Agricultural and Horticultural Research Station, Shivamogga, during kharif season of 2017-18 on sandy loamy soil having acidic in pH (5.2), low in organic carbon (0.38 %), poor in nitrogen (165.2 kg ha-1), rich in phosphorus (58.45 kg ha-1) and medium with respect to potassium (239.41kg ha-1). Th e experiment was laid out in a randomized complete block design with 15 treatment combinations replicated thrice. Th e results of the experiment shown that signifi cantly higher seed yield of green gram and black gram (950 and 1154.3 kg ha-1, respectively), straw yield (1643.5 and 2259.9 kg ha-1, respectively), number of pods (43.4 and 45.7, respectively) and pod length (12.5 and 12.2 cm, respectively) was recorded with treatment receiving recommended dose of fertilizers and foliar nutrition of MPP and 19:19:19 each at 1% at 30 and 45 DAS and it was on par with the treatment combinations of RDF+MPP and 19:19:19 each at 1% at 30 DAS (937 and 1136.2 kg ha-1, respectively), straw yield (1621 and 2224.6 kg ha-1, respectively), number of pods (42.3 and 45.5, respectively) and pod length (12.3 and 12.0 cm, respectively).

Leila Mary Bolinto Alipio – Ayban

Benguet State University, Philippines

Title: Comparative phenology, morphology and anatomy of wild and in vitro propagated Benguet lily (Lilium philippinense Baker)

Biography:

Leila Mary Bolinto Alipio Ayban is an Assistant Professor at the Benguet State University. She has completed her PhD in Horticulture minor in Agronomy from the University of the Philippines, Los Banos. Her specialization and research interest is in micropropagation, identifi cation, production, conservation and commercialization of endemic, medicinal and high value horticultural crops. Her publications were in the development of cultural management, production and in vitro propagation of Lilium philippinense and Strawberry. She has completed her Bachelors in Agriculture major in Horticulture minor in Plant Pathology and her Master’s degree in Horticulture minor in Rural Development and Plant Pathology from the same university.

Abstract:

Benguet lily (Lilium philippinense) is an endemic lily in the Philippines with high potential of being commercialized but with declining population due to human activities. These prodded the conduct of this study to provide baseline information on the comparative phenology, morphology and anatomy of wild and in vitro propagated Benguet lily that was grown under natural habitat and greenhouse condition and to illustrate their flower development. On the phenological stages, in vitro propagated plants require a longer period to complete a growth stage. Morphologically, wild plants in the natural habitat and in vitro propagated plants under greenhouse condition performed better compared to those in switched growing conditions. In the morphometry, diff erences in both appeared to be highly attributable to the growing conditions, while for the pigmentation, pure white petal, bright yellow pollen grains and light green stem of wild Benguet lily remained unchanged regardless of growing conditions. Similarly, in vitro propagated lily maintained the tinge of maroon in the midrib of the petals, base of leaves, base of stems and maroon colored pollen grains were unaff ected by growing conditions. Anatomically, wild and in vitro propagated plants were similar except for the presence of pigmented cells interspersed in the epidermis of stem, leaves, flower and pollen grain. In flower development, floral part initiation starts in the outside whorl to the formation of gynoecium. In a singular flower, the floral meristem is located apically but with more flowers, ensuing floral meristem develops on the lateral side of the first flower and of at a later growth stage.

Nandish M S

University of Agriculture and Horticulture Science, India

Title: Development and evaluation of liquid plant growth promoting rhizomicrobial Consortia for healthy Radish (Raphanus sativus) production (Workshop)

Biography:

Nandish M S has completed his PhD in Agricultural Microbiology from University of Agricultural Sciences, Bangalore. He is currently working as an Assistant Professor of Microbiology, College of Agriculture, UAHS, Shimoga. He has published more than 25 research papers in reputed journals and more than 75 abstracts publications and handling 11 research projects in the fi eld of agricultural microbiology as Principal Investigator and Co - Principal Investigator.

Abstract:

Plant Growth Promoting Rhizo microorganisms (PGPRs) are more commonly known as benefi cial microbial inoculants that can improve soil fertility and crop productivity. Now-a- days, the application of the liquid plant growth promoting microbial consortia in the vegetable production is gaining lot of importance because of their cost eff ectiveness and eco-friendliness. Diff erent liquid plant growth promoting rhizo microbial consortia like Azospirillum, Azotobacter, phosphorus and potash solubilizing bacteria etc., are used in the fi eld of vegetable production for increasing the yield and to reduce diseases and also to maintain the soil health for sustainable production. In the present study, attempts were made to isolate, characterize and screen native nitrogen fi xing, phosphorus and potassium solubilizing bacteria from the diff erent weed rhizosphere soils of Malnad region of Karnataka (India). Further, attempts were also made to develop and evaluate the eff ective liquid PGPR consortia on

growth and yield of radish under greenhouse conditions. Out of 11 diff erent weed rhizosphere soils collected, as many as 7 Azotobacter, 6 phosphate solubilizing and 8 potassium solubilizing isolates were obtained. In the in vitro screening studies, the Azoto-7, PSB-2 and KSB-8 showed high effi ciency in nitrogen fi xation, phosphorus and potassium solubilization, respectively and all the effi cient isolates were tentatively characterized as Azotobacter, phosphate solubilizing Bacillus megaterium and potassium solubilizing Bacillus mucilaginosus based on morphological and biochemical characters. Further, the effi cient liquid plant growth formulation were developed and evaluated on Radish under greenhouse condition using varied levels of Recommended Dose of Fertilizers (RDF). Out of 16 treatments imposed, the treatment receiving 75% of RDF+FYM+efficient liquid PGPR formulation showed statistically highest germination percentage (100%) and number of leaves (15.70, 18.60 and 20.20 numbers of leaves at 15, 30 and 45 days aft er sowing). Similarly, the same treatment showed high chlorophyll content of 2.90 mg/g of tissue, fresh and dry weight of 141.10 and 29.90 g, respectively followed by the treatment receiving 100% of RDF+FYM+efficient liquid PGPR formulation. However, the same trend of observation was recorded with respect to tuber girth, tuber length and also showed the maximum accumulation of NPK content both in plant and soil at the time of harvest. Scale up studies further required evaluating the native PGPR formulations for diff erent crops in combination with different bio-control agents for increased vegetable production.

Abdulameer Alsaffar

Kuwait Institute for Scientific Research (KISR), Kuwait

Title: Effect of different dietary lysine levels on egg composition of broiler breeders kept at different temperatures

Biography:

AlSaffar Abdulameer has 27 years of research experience at Kuwait Institute for Scientifi c Research, Kuwait. He has worked as Project Leader, Principal Investigator and Internal Consultant for several major contractual projects. He has authored and published numerous papers in refereed journals and conference proceedings, a book and technical reports.

Abstract:

Poultry is one of the fastest growing and most promising industries with the brightest future in our country. Since 2008, the local broiler breeder industry produces only 35% of the day-old broiler chicks used by the industry and the remaining covered by importing fertile eggs. Experiments have demonstrated clear effect of temperature on broiler breeders’ egg composition. The objectives of this experiment were: (1) To examine eff ects of four diff erent ambient temperatures 21, 26, 29 and 32 oC on the response of the egg composition from laying broiler breeders, (2) To examine their response of four dietary lysine concentrations (35, 50, 65 and 90 g/kg crude protein-wheat-based that contained 151 g/kg crude protein concentration), and (3) To examine whether there were temperature×lysine concentration interactions in the responses of broiler breeders. Two hundred and twenty-four (224) 29-week old hens (308 Ross Broiler Breeder) randomly allocated to 16 identical pens within

four environmentally controlled rooms in a facility. A split-plot design was used in which four main plots (rooms) kept at four constant temperatures. Increasing temperature gave linear decreases in the proportion of shell in the eggs (P=0.049). There were no signifi cant diff erences (P>0.05) between the diff erent lysine concentration levels in any variable of egg composition.

Similarly, there were no consistent (P>0.05) temperature×lysine concentration interactions.

Hendrika Fourie

North-West University, South Africa

Title: An audit of the abundance, diversity and identification of economically important phytonematodes limiting the production of grain and oilseed crops in South Africa

Biography:

Hendrika Fourie is currently working at the West University as a Lecturer and Researcher. She supervises mentors and trains the Post-Graduate Students and Collaborate with local and international nematologists and experts of other related disciplines regarding nematology-related research.

Abstract:

Updates on the phytonematodes that parasitize maize (staple food and important livestock feed source), groundnut and soybean (important sources of protein and oil) were done for South African production areas. Such interventions focused on the abundance, diversity and identity of nematode pests. Root and soil samples were obtained from 78 commercial maize fields (irrigation and rain-fed); soybean surveys were done for conventional and genetically modifi ed, glyphosate-resistant crops (17 fi elds in total) and groundnut samples were obtained for diagnostic and research purposes. Phytonematodes were extracted, counted and morphologically identifi ed from soil and plant samples using standard protocols. Molecular species identification was also done, including various DNA sequence protocols and SCAR-PCR (specifi cally for Meloidogyne spp.). Meloidogyne and Pratylenchus were identifi ed as the predominant genera infecting maize and soybean. Meloidogyne incognita, M. javanica, M. arenaria were predominant for maize and M. incognita and M. javanica for soybean. Meloidogyne enterolobii was found also in one maize fi eld and is a fi rst report for local maize despite the crop being listed in international literature as a non- or poor host of this species. Pratylenchus zeae and P. brachyurus dominated in samples from maize and soybean crops, with P. fl akkensis, P. scribneri and P. vulnus being fi rst reports for soybean in South Africa. Regarding groundnut, Robustodorus arachidis was identifi ed for the first time worldwide infecting the crop. Knowledge generated for these crops is important and useful and can be used for planning and deploying management strategies to produce such and other rotation crops, where economically important phytonematodes pose problems to producers and related industries.

Jayasyaliny Jayaraj

Monash University, Malaysia

Title: Development of reduced-HiSeq genotyping-by-sequencing weedy rice

Biography:

Jayasyaliny Jayaraj is currently pursuing her Master’s degree at Monash University, Malaysia. She has completed her Bachelor of Science with Honors (Resource Biotechnology) at Universiti Malaysia Sarawak. She is also a Correspondent with Malaysia’s fi rst science newspaper, The Petri Dish.

Abstract:

Single Nucleotide Polymorphisms (SNPs) are the most common type of genetic variation among living organisms. With the advent of the Next-Generation Sequencing (NGS) technology, rapid advance in high throughput SNP genotyping such as Genotyping-By-Sequencing (GBS) have signifi cantly increased effi ciency in simultaneous discovery and genotyping of SNPs in complex plant species. However, the current Illumina HiSeq-based GBS protocols have their own limitations in terms of complex, high capacity bioinformatics analyses prohibiting the use of GBS among small laboratories and small-scale users. This study aims to produce a smaller scale, bioinformatically simplifi ed and more convenient reduced-HiSeq GBS method, which possesses advantages of GBS over other SNP genotyping methods, including the high reproducibility of markers and reduced representation of genome. Weedy rice (Oryza Sativa) was used as the model species. Rice samples from selected paddy fields in Malaysia were collected and genomic DNA was extracted, used for library construction and subjected to sequencing using Illumina HiSeq platform. Reduced-HiSeq GBS datasets were generated and subjected to various population genetic tests. Comparative analysis between reduced-HiSeq and full HiSeq-GBS datasets revealed that the former is potentially useful and sufficient for genetics analyses in rice.

Madhavi de Silva

University of Sri Jayewardenepura, Sri Lanka

Title: The effect of conventional and nano fertilizers on the growth of Zea mays

Biography:

Madhavi de Silva is a PhD student at the University of Sri Jayewardenepura, Sri Lanka. Her research work focuses on developing nanohybrids as plant nutrients.

She has participated in global conferences and has a publication.

 

Abstract:

The necessity to explore sustainable agricultural practices has become imperative with the ever- increasing world population and limited land availability for farming. Macronutrients as well as micronutrients are indispensable for proper growth plants and better crop yields. Th ese nutrients should be supplied to plants externally because the most soil does not provide

nutrients needed for the plant growth. Farmers understood this phenomenon and started using fertilizers in crop production even from the early stages of civilization. Zea mays is a crop which has a high demand all over the world and considered as a staple food in many geographical regions. To meet the increasing global demand for Zea mays, farmers should take necessary steps to increase crop production. This could be achieved by identifying the correct fertilizers which are competent to provide better crop yields in Zea mays, as then they can use them to elevate the crop production. Th is study discusses how the growth and crop yield of Zea Mays is aff ected by diff erent types of fertilizers. When compared with conventional fertilizers, it was clearly observed that the nanofertilizers are highly capable of supplying nutrients to Zea mays in an effi cient manner, thus leading to improved growth and better crop yields.

Chair

Leila Mary Bolinto Alipio – Ayban

Benguet State University, Philippines

Chair

Nandish M S

University of Agriculture and Horticulture Science, India

Chair

Abdulameer Alsaffar

Kuwait Institute for Scientific Research (KISR), Kuwait

Chair

Hendrika Fourie

North-West University, South Africa

Chair

Jayasyaliny Jayaraj

Monash University, Malaysia

Chair

Madhavi de Silva

University of Sri Jayewardenepura, Sri Lanka

Chair

Yusuf Leonard Henuk

University of North Sumatra, Indonesia

Session Introduction

Samodimo Ngwako

Botswana University of Agriculture and Natural Resources (BUAN) Gaborone Botswana

Title: Characterisation of Jatropha curcas l germplasm within Botswana using morphological and molecular markers (SSR)

Biography:

Samodimo Ngwako completed PhD at the University of Birmingham in 2003. He is the Acting Dean of the Faculty of Agriculture at Botswana University of Agriculture and Natural Resources, Botswana. He is an Associate Professor in Plant Breeding and was the Head of Department of Crop Science and Production

from 2011 to 2017. He has puplished more than 20 papers in reputed journals and has served as an editor for a number of jounals.

Abstract:

Jatropha curcas L is an undomesticated plant species that has recently received great attention for its utilization in biofuel production in many countries including Botswana. Th e experiment investigated 30 Jatropha curcas accessions, and the results revealed high signifi cant diff erences (P<0.01) in the thirty accessions for peduncle length, number of seed per fruit, length of fruit stalk, fruit length, fruit width, seed length and width, seed weight, leaf length and width, petiole length, total fl ower per cluster, female and male fl ower per cluster and number of fruit per. Th e qualitative characters revealed substantial amount of variability among the accessions except in fruit shape, stem color and fl ower color. Multivariate cluster analysis based on morphological characters grouped the accessions into four clusters at dissimilarity coeffi cient of approximately 1.37 indicating a wider variation. Molecular characterization revealed four distinct clusters at 0.85 genetic similarity coeffi cients and this

indicates narrow genetic diversity. Correlation between morphological and molecular markers showed negative, positive and no correlation relationships. Eight morphological characters and six molecular markers correlated positively with r values ranging from 0.557 to 0.662. Th e morphological and molecular markers were both clearly able to cluster the Ghana accession away from the other accessions. Th e morphological characters that separated the Ghana accession from others were seed weight and infl orescence compactness.

Darwin A Basquial

Benguet State University, Philippines

Title: Protected cultivation improves growth of ‘Lollo Rossa’ lettuce grown in chilling conditions in Benguet, Philippines

Biography:

Darwin A Basquial has completed his PhD in Horticulture, specialization in Crop Physiology from the University of the Philippines, Los Baños. He is currently working as an Assistant Professor at the Department of Horticulture, College of Agriculture and the Director of Horticulture Research and Training Institute, Benguet State University, Philippines.

Abstract:

A study was conducted in two sites (Paoay, Atok and Balili, La Trinidad) in Benguet Province, Philippines to investigate the growth and development of lettuce variety ‘Lollo Rosso' through vegetative, biomass and yield, physiological and phytochemical parameters using low tunnel and mulch [black Polyethylene Plastic (PEP), alnus leaves and white PEP) as mitigation strategies against cold stress. Th e average temperature in Atok and La Trinidad was 15 and 21 ºC, respectively. In Atok, andap or frost was experienced on February 15 and 16, 2017 with air temperature of 1.8 and 1.5 ºC, respectively. Another andap occurred on March 8 and 19, 2017 having an ambient temperature of 3.3 and 3.9 ºC, respectively. Performance of lettuce

was better with the use of low tunnel compared to those grown without. Shoot length, root and shoot fresh weight, yield, shoot dry weight and total phenolic content of lettuce was increased with the use of plastic mulch. However, the use of alnus mulch against chilling stress was ineff ective. In general, white PEP was advantageous when used in Atok, while black PEP was more beneficial when used in La Trinidad. In terms of combination eff ect, shoot fresh weight, yield, and root dry weight was highest in lettuce grown in Atok under white PEP and low tunnel. Lettuce grown in La Trinidad had the highest root and shoots dry weight and yield under black PEP and low tunnel.

Nandish M S

University of Agriculture and Horticulture Science, India

Title: Thrust and challenging areas of microbiology for human sustenance

Biography:

Nandish M S has completed his PhD in Agricultural Microbiology from University of Agricultural Sciences, Bangalore. He is currently working as an Assistant Professor of Microbiology, College of Agriculture, UAHS, Shimoga. He has published more than 25 research papers in reputed journals and more than 75 abstracts publications and handling 11 research projects in the field of agricultural microbiology as Principal Investigator and Co - Principal Investigator.

Abstract:

Microbiology is a fascinating branch of biology with applications in several fi elds’ right from past, present and in future also. Th e microbes include a great diversity of living forms; the only standard feature among them being their microscopic in size. Th ese microbes are ubiquitous and are all-pervading on our planet; they are present in high abundance in the soil where they find moisture, nutrients, and temperature for their growth. Microbes make up most of the biodiversity on Earth and several of the processes which microorganisms perform are of critical importance for the cycling of nutrients, the degradation of various compounds, and the global climate. Knowledge of microbes in the environment helps mankind to develop ecosystem services and to fi nd strategies to utilize our agricultural natural resources in a long-term sustainable

manner. Th e seeds of knowledge on microbes were sown much earlier while dealing with the history of any science it is possible to recount the achievements of only a few outstanding philosophers ignoring the ever so many who have toiled to build the science brick by brick. Th e microbes have existed on this planet even before man and from time immemorial man has felt the influence of microbes especially as the caused diseases to him and on his crops and livestock. Th ere are references to plant disease in the Vedas (1500 BC), Bible (1000 BC) and in the writings of Th eophrastus (370 BC). As microbes are not seen with the unaided eye, the knowledge about them had to necessarily await the development of microscope and microbiology began when people learned to grind lenses from pieces of glass and to combine them to produce magnifi ed images. Th e extensive work on microbes have started in latter half of the nineteenth century where many of the olden civilization people were using the microbial-mediated foods like wine, curds, etc., for their consumption without knowing, later in the fi rst half of the 20th century interest on microbes has gained momentum with the application of microbes in production of antibiotics and several other industrial products like enzymes etc., Th ere are several fi elds where the microbes can be applied are biotechnology, food industry, medicine, agriculture etc.,

Akhona Mbatyoti

North-West University, South Africa

Title: Plant-parasitic and terrestrial non-parasitic nematode assemblages associated with glyphosatetolerant vs. conventional soybean and adjacent natural veld areas in South Africa

Biography:

Akhona Mbatyoti has completed his PhD in Environmental Sciences (Nematology) in June 2018 from North-West University (South Africa). He is currently a postdoctoral Fellow at North-West University and Agricultural Research Council – Tropical and sub-Tropical Crops.

 

Abstract:

The abundance and identity of plant-parasitic and terrestrial non-parasitic nematodes in rhizosphere soil and root samples of commercial Glyphosate-Tolerant (GM) and conventional (CS; non-glyphosate tolerant), soybean cultivars from cultivated fields were obtained for two consecutive growing seasons in South Africa. In addition, the same were done for adjacent natural veld areas. 13 plant-parasitic nematode genera and 31 species associated with both GM and conventional soybean cultivars and with natural veld areas were established. In general, root-knot (Meloidogyne spp.) and root-lesion (Pratylenchusspp.) nematodes dominated in the roots of both types of soybean cultivars. In rhizosphere soil, either Helicotylenchus or Scutellonema were the predominant genera. Conventional soybean cultivars hosted the highest nematode diversity (11 genera and 22 species), followed by natural veld (nine genera and 22 species) with those in GM cultivars being the least diverse (10 genera and 17 species). Six species, viz. Pratylenchus fl akkensis, Pratylenchus scribneri, Pratylenchus vulnus, Rotylenchus brevicaudatus, Telotylenchus avaricus and Quinisulcius capitatus, are fi rst reports for soybean in South Africa. 32 non-parasitic nematode genera occurred in rhizosphere soils of the two soybean ecosystems 23 in CS and 21 in GM soybean) with 28 genera occurring in natural veld areas. Bacterivorous were most diverse in soils of the two soybean ecosystems during both seasons, while fungivores tended to be more abundant in GM soybean fi elds especially during the second season. Novel information has been generated with this study, representing the fi rst for GM soybean crops in South Africa.

Suman Pal Singh Sirohi

Chaudhary Charan Singh University, India

Title: Stability analysis for yield and it’s contributing characters in green gram

Biography:

Suman Pal Singh Sirohi has completed his MPhil and PhD in Genetics and Plant Breeding from Chaudhary Charan Singh University, India. He is currently working as an Associate Professor in the Department of Genetics and Plant Breeding at Kisan PG College Hapur, India and has published more than 50 national and international research papers and journals.

Abstract:

The present investigation was undertaken to understand the role of genotype and environmental interactions in the expression of various characters and stability of Mung bean genotypes in four environments. The signifi cance of environmental component for all the characters in pooled analysis indicated existence of substantial diff erences among the four environments. Significant mean squares due to Genotype×Environment (G×E) interaction for all the characters except number of seed pods and 100 seed weight suggested that the genotypes showed considerable diff erential interaction with diff erent environments. The pooled deviation was highly signifi cant for all the characters except number of seed per pod 100 seed weight indicating that the response of genotypes taken for this study was not predictable and non-liner component played an important role in the development of the characters. Th e overall results of the stability across environment indicating their adaptation to rainfed as well as irrigated conditions. Thus, role of environment and G×E interactions must be taken into account while devising implementing selection or breeding programs in Mung bean.

Mohammad Akil

Indonesian Cereals Research Institute (ICERI), Indonesia

Title: Effect of different potassium levels and varitites on the yield of hybrid maize under field condition at South Sulawesi, Indonesia

Biography:

Akil is working as a senior Researcher in the Division of Ecology and Physiology, Indonesian.Cereals Research Institute (ICERI), Maros, South Sulawesi, Indonesia. He is soil and agronomist scientist. He obtained Ph.D (Crop Science – Agronomy) from Central Luzon State University (CLSU), Munoz, Nueva Ecija, Philippines on November 1999. He worked as researcher in the Maros Research Institute for Food Crops (MORIF), now Indonesian Cereals Research Institute (ICERI).

Abstract:

In order to investigate the eff ect of diff erent potassium levels and hybrid maize varieties on the yield and yield components of maize, an experiment was carried out at the Bajeng Experimental Station, Indonesian Cereals Research Institute, Gowa, South Sulawesi, from May to September 2017. Th e level of K on site of the experiment is 0.26 mg kg-1. Th e potential grain yield of three hybrid maize varieties has diff erent. Nasa-29 has potential grain yield (13.5 t ha-1), Bima-20 (12.8 t ha-1) and Bima-4 (11.7 t ha-1). Th e experiment was laid out in randomized split plot design with three replications having a plot size of 9 m×6 m with planting density 75×25 cm. Th e main plot was 6 levels of potassium (0, 20, 40, 60, 80 and 100) kg K2O ha-1. Th e sub plot was 3 hybrid maize varieties (Nasa-29, Bima-20 and Bima-4). Results indicated that the interaction of diff erent levels of potassium and hybrid maize varieties signifi cantly infl uenced maize plant height, cob diameter, weight of 1000 grains, and grain yield. Th e application of potassium at the rate of 60 kg K2O ha-1 and Nasa-29 variety resulted in the highest grain yield (11.33 t ha-1) under field condition the agro-ecological of Gowa, South Sulawesi.

C J Sridhara

University of Agricultural and Horticultural Sciences, India

Title: Influence of integrated nutrient management practices on growth and yield of aerobic Rice (Oryza sativa L)

Biography:

C J Sridhara has completed his Masters and PhD in Agronomy from University of Agricultural Sciences, Bangalore. He is specialized in water management and irrigation aspects by involving himself in teaching, research and extension activities related to water management. He is currently working as a Professor and Controller of Examination at University of Agricultural and Horticultural Sciences, Shimoga, Karnataka, India. He has published about 25 international, 20 national level research papers in various journals, published a book on aerobic rice cultivation and participated in various conferences. He served as a

Reviewer for various national and international journals and serving as academic Council Member at UAHS, Shimoga.

Abstract:

A field investigation carried out at agricultural and horticultural research station, Bhavikere, UAHS, Shivamogga during Kharif 2017, to study the infl uence of integrated nutrient management practices on growth and yield of aerobic rice. The texture of soil was sandy loam having acidic pH with organic carbon of 0.40 g kg-1, available nitrogen 220.80 kg ha-1, phosphorous 33.90 kg ha-1 and potassium 163.60 kg ha-1. Th e variety used was MAS 946-1 (Sharada). Th e experiment was laid out in a randomized complete block design with ten treatments replicated thrice. The treatments comprised of 100% RDF and 75% RDF with diff erent levels of FYM and vermin compost. Among diff erent treatment combinations application of 100% RDF+100% vermin compost (N Equivalent)+PGPR recorded signifi cantly higher growth parameters like number of tillers (34.2), leaf area (1396.9 cm2), dry matter production (89.04 g), yield attributes like number of productive tillers per hill (16.32), panicle length (23.52 cm), panicle weight (2.68 g), number of fi lled grains (87.0), grain yield (3868.0 kg ha-1) straw yield (4225.72 kg ha-1) and total nutrient uptake of nitrogen (93.13 kg ha-1), phosphorus (25.05 kg ha-1) and potassium (92.63 kg ha- 1). Th e yield increment was 27% over the control. Higher gross returns and net returns were registered with 100% RDF+100% vermi compost (N Equivalent)+PGPR (Rs. 81,228, Rs. 45,175) whereas, higher benefi t cost ratio (2.87) was obtained with application of 75% RDF+25% vermin compost (N Equivalent)+PGPR.