The Change of Photosynthetic Characteristics in Wheat Varieties with Different Senescence-type During Natural Senescence

doi:10.3321/j.issn:1000-7091.2006.03.004

Abstract

Abstract: The two wheat variety L14 and 935031 with different senescence-types were investigated.We researched the change of relative parameters in wheat varieties with different senescence-type during natural senescence.Our research indicated that from flowering to harvest stage of wheat,the photosynthetic rate,chlorophyll contents,soluble protein contents and conversive efficiency of light energy in L14 wheat leaves apparently declined more quickly than that in wheat variety 935031,but the beginning time when respectively relevant parameter declined was different.From thirtieth day after blooming,most leaves of 935031 still keep greening at harvest while the leaves of L14 have started withering.This showed pre-senescence of wheat leaves was closely related to the down-photosynthetic capacity of leaves.

Key words: Wheat, Leaf senescence, Photosynthetic characteristics

CLC Number:

S512.1

LIU Hong-zhan, ZHENG Feng-rong, ZHAO Shi-jie. The Change of Photosynthetic Characteristics in Wheat Varieties with Different Senescence-type During Natural Senescence[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2006, 21(3): 13-15. doi: 10.3321/j.issn:1000-7091.2006.03.004.

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