Main Wheat Cultivars in Huaibei Area: Response to Low Temperature Stress and Cold Resistance Evaluation

doi:10.11924/j.issn.1000-6850.casb17080081

Abstract

Abstract: The paper aims to provide guidance for the safety wheat production in Huaibei area of Anhui, the authors studied the response of wheat plants to low temperature stress under different sowing time, and evaluated the cold resistance of the main cultivars combining with the freezing situation and yield under natural low temperature. The results indicated that: the cold resistance of varieties decreased sharply at -12℃ at returning green stage; the cold resistance of wheat plants at sowing stage was: late-sowing>appropriatesowing> early-sowing; the electrolyte leakage rate increased gradually with the decrease of temperature, the cold resistance of the varieties of different locations was significantly different; the cluster analysis showed that the cold resistance was Shandong>Henan>Anhui. The authors screened a batch of varieties with cold resistance and high-yield as ideal varieties for early-sowing of planting in Huaibei area of Anhui, such as ‘liangxing 66’,‘shannong 20’,‘jimai 22’, and‘yannong 19’

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