Genetics and Breeding for Drought Tolerance in Food Legumes

Genetics and Breeding for Drought Tolerance in Food Legumes



RajendraDarai, Professor BR Ojha, Dr. A. Sarker, RabendraSah



Food legumes are the wonderful crops and cheapest
source of protein in the daily diets of urban and rural masses
throughout the world. In these days, its production is almost motionless
causing declining per capita availability and high cost of the food
legumes made serious threats for food and nutritional security in Nepal.
In addition to the inherent low yield potential of many food legumes,
there are several diseases, insects and pests and drought. In cowpea
drought resistance is reported to be controlled by a single dominant
gene. The promising drought tolerant varieties of cowpea were
IT98K-1399, IT98K-131-2, IT97K-568-19 and IT98K-452-1. Among the
pigeonpea hybrids tested, ICPH 8 and ICPH9 were the most drought
tolerant. Likely the line ICPL88039 showed greater drought tolerance.
Drought tolerance lentil cultivars were ILL-7979, ILL-10960, ILL -10973,
ILL-10897, ILL-10821, ILL-10826, and ILL-10835. In fact, drought
tolerance on the whole plant basis makes it a complex trait and
difficult to manipulate by plant breeders. There is an urgent need for
exploration of the plant genetic resources with attributes related to
drought resistance in different crop plants. Attention should be
concentrated on better understanding of genetic basis of drought
resistance through antisense RNA technique. National and International
research institutes are being attempted to address the issues by
developing extra early varieties combined with resistance to major
diseases, insects-pests and tolerant to drought so that some of these
legumes may fit in the existing niches in cereal based systems and
perform well even in the drought-prone and marginal environments. This
paper briefly reviews the challenges, progress and future strategies
made in breeding for drought tolerance in major food legumes. 



10.22161/ijeab/1.4.47



http://ijeab.com/upload_document/issue_files/47%20IJEAB-DEC-2016-7-Genetics%20and%20Breeding%20for%20Drought%20Tolerance%20in%20Food%20Legumes.pdf



http://ijeab.com/submit-paper/

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