2006•Dongbei Nongye Daxue xuebaoRequires access
Effect of the physiological parameters in different growth stages of spring maize by drought
Liang Yang
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Abstract
The response to drought in different stages of spring maize in Heilongjiang Province with some physiological parameters(chlorophyll content,NRA,PR) was found.The drought resistance in seedling stage was stronger than that in other stages.And the most sensitive action to drought stress was found from booting stage to blooming one.The content of chlorophyll a and total chlorophyll content was most quickly under drought at the booting stage,while the one of chlorophyll b content showed the same at the jointing stage and response of NRA to drought stress at the tasselling was below the level of CK by 38.39%.The photosynthetic rate(PR) was found to decrease about 59.88% under drought at booting stage.