DETERMINATION OF STRESS INDICES FOR SELECTION OF SUPERIOR GENOTYPES UNDER DROUGHT SITUATION IN RICE (ORYZA SATIVA L.)
Journal Title: International Journal of Agriculture Sciences - Year 2016, Vol 8, Issue 38
Abstract
One of priority research area in rice is identification of suitable genotypes for rain fed condition. Quantifying the drought tolerance genotypes was done with different stress indices obtained from the yield data under severe drought and irrigated condition with four backcross inbred lines derived from the cross between IR64 (drought susceptible) and Apo (drought tolerant) which carried three mega QTL in different combination of classes namely qDTY2.2, qDTY3.1 and qDTY8.1. The genotype CB 229 is the highly tolerant one confirmed by tolerant and susceptible indices, which had three DTY QTL (qDTY2.2, qDTY3.1 and qDTY8.1) combinations maximizes the yield in drought condition. Among the selection indices, YI, MPI, DRI, STI, HM, GMP, MRP and RE are the best indices to identify tolerant genotype. Clustering based on principal component analysis exhibits that CB 229, CB 193-2 and CB 193-3 falls on the quarter where tolerant indices found. Overall study shows that the selection based on stress indices may be rewarded to identify superior genotypes under severe drought condition.
Authors and Affiliations
K. BAGHYALAKSHMI
Keywords
Related Articles
- EP ID EP170612
- DOI -
- Views 97
- Downloads 0
IMPACT OF GOVERNMENT SCHEMES ON AVAILABILITY OF AGRICULTURAL LABOURS IN THE KARNATAKA STATE, INDIA - AN ECONOMIC ANALYSIS
This study investigates the labour supply behaviour of agricultural labourers at different wage rates. The objectives of this study are to test the Impact of rural development schemes on availability of agricultural labo...
EVALUATION OF UNDERGROUND WATER QUALITY OF BARA TRACT OF BHARUCH DISTRICT (GUJARAT)
The quality of irrigation water is the foremost matter in irrigated condition. However, injudicious use of good quality water may turn a good soils into saline/ or sodic soils. Thus, it has large bearing on the productiv...
INFLUENCE OF GROWING CONDITIONS ON YIELD AND ESSENTIAL OIL OF CORIANDER DURING YEAR-ROUND CULTIVATION
Coriander (Coriandrum sativum L.) is an important crop for its tender leaves with characteristic flavor used for culinary preparations as well as the seed used mainly in powder form as spice. Protected cultivation in sum...
EVALUATION OF PLANT POPULATION AND CROP GEOMETRY OF PIGEONPEA BASED SOYBEAN INTERCROPPING SYSTEM (ADDITIVE SERIES) UNDER RAINFED ECOSYSTEM
The field experiment was conducted at Experimental farm, Department of Agronomy, College of Agriculture, Parbhani under Vasantrao Naik Marathwada Krishi Vidyapeeth (VNMKV), Parbhani (M.S.) during Kharif 2014-15 to assess...
STUDIES ON THE EFFECT OF DIFFERENT LAND LEVELLING TECHNIQUES ON WEED POPULATION IN GROUNDNUT (ARACHIS HYPOGAEA L.)
The field studies were conducted in the research farm of the University of Agricultural Sciences (UAS) Raichur during the kharif seasons of 2013 and 2014 to determine the effects of traditional and laser land leveling te...