Co-Adapted Yield Components in Elite Genepool of Bread Wheat Developed in North-Western and North-Eastern Plains of India

Abstract

Wheat breeding programme for the Indo-Gangctic plains is proactive. Wheat brecders of the North-western and
North-eastern plains contribute in this programme to release varieties in either of the zones. The study is focussed
to pin point advantages or disadvantages tagged to the breeding material developed in either zone. The North-western
zone wheat breeding programme is good in adding grain number per unit area with assured grain weight. The material
dcveloped in this zone has bettcr adaptation and tolerance against temperature spurt during grain filling period.
On the other hand, the materials developed in the North-eastern region have more height instead of grainsIM2 and
fast ripening. The traits showing uniformity in expression across the zones have been discussed in both types of
materials. The finding will prove useful in planning selection procedure for the development of bread wheat genotypes
for the entire Indo-Gangetic plains stretching from Punjab to West Bengal.