Abstract
Due to global climate change, the amount of precipitation through rains and petal of rains is changing in north-west plain zone of India where wheat is predominantly grown. These changes in precipitation are coupled with changes in diurnal patterns of temperature and photoperiod. Normal sowing time for wheat crop ranges from 1st November to 15th November. However, wheat sowing in major part of north-west plain zone is delayed up to 1st and 2nd week of December. As the harvest of previous crops like cotton or paddy is delayed therefore wheat sowing is also delayed accordingly. This leads to problem of terminal heat stress coinciding with grain growth period. Consequently, the grain yield of wheat is adversely affected due to poor grain growth. Both these reasons weren’t infusion of resistance against heat and drought stress. OsCaM genes and heat shock proteins have been identified in wheat. These are distributed over different pure lines. Accumulation of stress tolerance genes in common background is therefore objective of many wheats breeding programmed. We are integrating conventional wheat breeding methods like pedigree, breeding, physiological traits and molecular markers for identifying stress tolerant genes for heat and drought stresses and converse them in a common background to develop high yielding wheat verities. Giving seven to eight toned yield per hectare for food security for ever increasing population.
Details
Presentation Type
Paper Presentation in a Themed Session
Theme
KEYWORDS
Wheat, Triticum aestivum, Drought and Heat stress
