Study on photosynthesis,quality and yield of peanut under different times of irrigation

doi:10.14088/j.cnki.issn0439-8114.2021.12.003

Abstract

Abstract: Under natural conditions, the effects of different irrigation times on photosynthesis, yield and quality of peanut were studied. The results are as follows, compared with CK which is natural condition with two times irrigation, the net photosynthetic rate of T1 treatment which is light drought with one time of irrigation increase at first and then decrease, which is mainly caused by stomatal factors in the early stage, and stomatal factors and non stomatal factors work together in the late stage. The net photosynthetic rate of T2 treatment which is severe drought with no irrigation shows a fluctuation change of decline rise decline. The former decline is caused by stomatal factors, and the latter decline is caused by non-stomatal factors. The yield and its components of peanut except for the full fruit weight decrease with the increase of drought degree. For the T1 treatment, the 100-satiety seed weight increases by 5.43%, and the other yield components decrease in varying degrees. The yield and its components of T2 treatment decrease significantly, except the 100-satiety seed weight has no significant difference. With the increase of drought degree, the content of protein and amino acid increase significantly, while the content of oil and water decrease.

Key words: peanut, drought, irrigation, yield, quality

CLC Number:

S565.2

MA Qing-rong, LIU Rong-hua, QIN Fu-sheng, CHENG Lin, LI Tong-xiao, HU Cheng-da. Study on photosynthesis,quality and yield of peanut under different times of irrigation[J]. HUBEI AGRICULTURAL SCIENCES, 2021, 60(12): 14-19.

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