Effect of Waterlogging Degree on Cotton Seedling Growth and Physiological Change

doi:10.11923/j.issn.2095-4050.cjas15110014

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Journal of Agriculture ›› 2016, Vol. 6 ›› Issue (2) : 33-38. DOI: 10.11923/j.issn.2095-4050.cjas15110014

Effect of Waterlogging Degree on Cotton Seedling Growth and Physiological Change

郑曙峰,王维,刘小玲,吴文革,陈敏 and 阚画春

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Abstract

In order to clarify the adaptability of cotton after waterlogging stres. cotton morphology, production and physiological changes at the seedling stage under different flooding degree were studied by using a pot experiment. The results showed that after flooding, cotton production, the rate of bolls per plant, boll weight, plant height, number of leaves and dry matter accumulation of per plant reduced, while Lint percentage did not change; with the flooding time increasing, various indicators continued reducing. after flooding 20d, leaf SPAD value declined rapidly, cotton lint yield decreased by more than 80%, even total crop failure. Overall, flooding 15d could be considered the critical time of cotton to adapt waterlogging stress during seedling stage , so cotton can resuming growing through cultural technique measure before the critical time.

Key words

Cotton; Waterlogging Stress; Critical Time; Recovery Growth

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郑曙峰,王维,刘小玲,吴文革,陈敏 and 阚画春. Effect of Waterlogging Degree on Cotton Seedling Growth and Physiological Change[J]. Journal of Agriculture. 2016, 6(2): 33-38 https://doi.org/10.11923/j.issn.2095-4050.cjas15110014

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