The Effects of Flood, Drought, and Flood Followed by Drought on Yield in Cotton
Cotton suffers from alternations of flood and drought in China. A lysimeter trial was conducted to investigate the responses of various cotton yield indices under water-stress treatments including, flood (five-day, eight-day), drought (10-day, 15-day), and five-day flood followed by 10-day drought,...
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MDPI AG
2020-04-01
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Series: | Agronomy |
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Online Access: | https://www.mdpi.com/2073-4395/10/4/555 |
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author | Long Qian Xiaohong Chen Xiugui Wang Shuang Huang Yunying Luo |
author_facet | Long Qian Xiaohong Chen Xiugui Wang Shuang Huang Yunying Luo |
author_sort | Long Qian |
collection | DOAJ |
description | Cotton suffers from alternations of flood and drought in China. A lysimeter trial was conducted to investigate the responses of various cotton yield indices under water-stress treatments including, flood (five-day, eight-day), drought (10-day, 15-day), and five-day flood followed by 10-day drought, during the flowering and boll-forming stage. The results showed that the seed cotton yield was significantly (<i>p</i> < 0.05) reduced under all water-stress treatments, while the harvest index was not affected under any treatment. Significant decreases in dry matter yield, boll number, and boll hull mass were detected under flood treatments but not under drought treatments. The percentage cotton yield losses per day induced by flood and drought were 6.22% and 2.48%, respectively. Under water stress, the associations between seed cotton yield and relevant yield indices were weakened, but yield losses were still strongly related to the decreases in dry matter yield and boll number. Flood followed by drought caused significant reductions in all yield indices except harvest index; however, the reduction was much lower than the additive reductions induced by flood and drought. These results provide bases for scheduling irrigation and drainage under climate change. |
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issn | 2073-4395 |
language | English |
last_indexed | 2024-03-10T20:31:28Z |
publishDate | 2020-04-01 |
publisher | MDPI AG |
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series | Agronomy |
spelling | doaj.art-e08f2effbee949ea98a62204376f7c0e2023-11-19T21:22:12ZengMDPI AGAgronomy2073-43952020-04-0110455510.3390/agronomy10040555The Effects of Flood, Drought, and Flood Followed by Drought on Yield in CottonLong Qian0Xiaohong Chen1Xiugui Wang2Shuang Huang3Yunying Luo4School of Civil Engineering, Sun Yat-sen University, Guangzhou 510275, ChinaSchool of Civil Engineering, Sun Yat-sen University, Guangzhou 510275, ChinaState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, ChinaState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, ChinaSchool of Environment, Jinan University, Guangzhou 511443, ChinaCotton suffers from alternations of flood and drought in China. A lysimeter trial was conducted to investigate the responses of various cotton yield indices under water-stress treatments including, flood (five-day, eight-day), drought (10-day, 15-day), and five-day flood followed by 10-day drought, during the flowering and boll-forming stage. The results showed that the seed cotton yield was significantly (<i>p</i> < 0.05) reduced under all water-stress treatments, while the harvest index was not affected under any treatment. Significant decreases in dry matter yield, boll number, and boll hull mass were detected under flood treatments but not under drought treatments. The percentage cotton yield losses per day induced by flood and drought were 6.22% and 2.48%, respectively. Under water stress, the associations between seed cotton yield and relevant yield indices were weakened, but yield losses were still strongly related to the decreases in dry matter yield and boll number. Flood followed by drought caused significant reductions in all yield indices except harvest index; however, the reduction was much lower than the additive reductions induced by flood and drought. These results provide bases for scheduling irrigation and drainage under climate change.https://www.mdpi.com/2073-4395/10/4/555waterloggingwater deficityield lossirrigationdrainage |
spellingShingle | Long Qian Xiaohong Chen Xiugui Wang Shuang Huang Yunying Luo The Effects of Flood, Drought, and Flood Followed by Drought on Yield in Cotton Agronomy waterlogging water deficit yield loss irrigation drainage |
title | The Effects of Flood, Drought, and Flood Followed by Drought on Yield in Cotton |
title_full | The Effects of Flood, Drought, and Flood Followed by Drought on Yield in Cotton |
title_fullStr | The Effects of Flood, Drought, and Flood Followed by Drought on Yield in Cotton |
title_full_unstemmed | The Effects of Flood, Drought, and Flood Followed by Drought on Yield in Cotton |
title_short | The Effects of Flood, Drought, and Flood Followed by Drought on Yield in Cotton |
title_sort | effects of flood drought and flood followed by drought on yield in cotton |
topic | waterlogging water deficit yield loss irrigation drainage |
url | https://www.mdpi.com/2073-4395/10/4/555 |
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