What are the physiological and phenological responses of major field crops in Eastern U.P. to drought stress, and how can adaptive agronomic practices help mitigate yield losses?
Himanshu Tiwari
Drought stress in Eastern Uttar Pradesh causes physiological responses like stomatal closure, decreased photosynthesis, and osmotic adjustment, along with phenological changes such as reduced leaf area and early maturity. To mitigate yield loss, adaptive agronomic practices like adopting drought-tolerant crop varieties, water harvesting, improved irrigation techniques (e.g., drip irrigation), mulching, conservation tillage, and judicious use of soil amendments can improve soil moisture, enhance water use efficiency, and support crop resilience.
Thanks!
Major field crops in eastern U.P. show drought-induced physiological responses such as reduced stomatal conductance, lower photosynthetic rates, accelerated leaf senescence, and altered phenology (earlier flowering/maturity) that collectively cut biomass accumulation and yield; severity depends on timing (critical growth stages like flowering/grain fill are most sensitive), duration and crop genetics, making varietal choice and timely moisture management critical for mitigation.
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