J Integr Plant Biol. ›› 1978, Vol. 20 ›› Issue (3): -.

• Research Articles •    

Chemically Induced Plant Senescence and Its Application in Accelerating Maturation of Cereals

Zhang Wei-cheng, Yan Wen-mei and Wang Zai-mo   

Abstract: In the present investigation several chemicals (Magnesium chlorate, Dalapon and Thiourea) were employed to accelerate maturation of some cereal plants (Triticum and Hordeum). Physiological and cytological changes occured in senescent period of functional leaf had been studied both in treated and untreated plants. According to the experimental results, spraying chemicals during maturity period effectively induced the senescence of vegetative organs and accelerated the maturation of grains (earlier than control by 4–7 days), but the grain weight was reduced slightly (lighter than control about 5%). Physiological and cytological studies showed that, senescence induced by chemicals is a physiological phenomenon very similar to that occur in naturally senescent tissue.

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