ACTA AGRICULTURAE BOREALI-SINICA ›› 2021, Vol. 36 ›› Issue (S1): 111-117. doi: 10.7668/hbnxb.20192295

Special Issue: Wheat

• Tillage & Cultivation·Physiology & Biochemistry • Previous Articles     Next Articles

Effect of Waterlogging Duration After Anthesis on Flag Leaf Photosynthesis, Grain Filling Characteristics and Yield of Wheat

ZHOU Yuanhui1, MA Shangyu1,2, WANG Yanyan3, HUANG Zhenglai1,2, ZHANG Wenjing1, FAN Yonghui1, HOU Junyou1, GAI Panpan1, SHAN Yajing1   

  1. 1. College of Agronomy, Anhui Agricultural University, Key Laboratory of Wheat Biology and Genetic Improvement on Southern Yellow & Huai River Valley, Ministry of Agriculture and Rural Affairs, Hefei 230036, China;
    2. Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing 210095, China;
    3. Agricultural Park Management Center, Anhui Agricultural University, Hefei 230036, China
  • Received:2021-04-18 Published:2021-12-28

Abstract: In 2015-2016 wheat growing season, Wankenmai 076 and Wanmai 52 were used at the Wanzhong Experiment Station of Anhui Agricultural University to study the effect of waterlogging after anthesis on the grain filling characteristics and yield of winter wheat. Four treatments, 0(W0), 3(W3), 6(W6), and 9(W9)days of waterlogging after anthesis, were established. The results showed that 14 days after flowering, no significant differences were observed in net photosynthetic rate, SPAD value, malondialdehyde(MDA)content and peroxidase(POD)activity in flag leaf between W0 and W3 treatments. Moreover, W6 and W9 treatments showed significant lower values than that of W0. However, superoxide dismutase(SOD)and catalase(CAT)activity of flag leaf were different in different varieties, SOD and CAT activities of flag leaf in Wankenmai 076 of W9 treatment were significantly lower than those of other treatments, SOD and CAT activity of flag leaf in Wanmai 52 of W3 and W6 treatment were significantly lower than those of W0 treatment, but higher than those of W9 treatment. In addition, W6 and W9 showed significantly lower average grain filling rate than W0 and W3 treatments, and different wheat varieties had different effects on the grain filling process under waterlogging conditions. There was no significant difference in spike number of wheat under waterlogging after anthesis. Moreover, there was no significant difference in grain number between W0 and W3 treatments, while W6 and W9 treatments were significantly lower than that of W0 in Wankenmai 076. However, the grain number and weight of W3, W6 and W9 in Wanmai 52 showed significantly lower values than those of W0 treatment, and W9 treatment was the lowest. The 1000-grain weight and yield of both varieties ranked as W0>W3>W6>W9. After 9 days of waterlogging, the yield of both varieties decreased by 34.99% and 40.44%. Under the conditions of this experiment, waterlogging during flowering period reduced the photosynthetic capacity of flag leaves of wheat, affected the grain filling process, reduced the average grain filling rate, and led to the decrease of 1000-grain weight, thus reducing the final yield.

Key words: Wheat, Waterlogging, Photosynthetic characteristics, Grain-filling, Yield

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Cite this article

ZHOU Yuanhui, MA Shangyu, WANG Yanyan, HUANG Zhenglai, ZHANG Wenjing, FAN Yonghui, HOU Junyou, GAI Panpan, SHAN Yajing. Effect of Waterlogging Duration After Anthesis on Flag Leaf Photosynthesis, Grain Filling Characteristics and Yield of Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2021, 36(S1): 111-117. doi: 10.7668/hbnxb.20192295.

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