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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Main Authors: Long Qian, Xiaohong Chen, Xiugui Wang, Shuang Huang, Yunying Luo
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Agronomy
Subjects:
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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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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