棉花不同生育期淹水历时对其生长状况和产量构成的影响
棉花不同生育期淹水历时对其生长状况和产量构成的影响
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Xinxiang City: Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
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Xinxiang City: Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
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通过桶栽土培试验,分别在苗期（S）、蕾期（B）、花铃期（F）和吐絮期（T）进行淹水2、4、6、8、10 d的处理,淹水深度均为5 cm,并以全生育期不淹水为对照（CK）,探索了黄淮地区夏季棉花不同生育期淹水历时对其生长状况和产量构成的影响。结果表明,在棉花苗期、蕾期和花铃期淹水6 d后,株高和叶面积开始显著小于CK（P〈0.05）。不同生育期淹水处理均会导致棉花株高、叶面积、果枝数、节数、铃数和单铃质量的下降,且淹水历时越长,下降幅度越大。淹水导致棉花减产最为严重的生育期为花铃期,其余依次为蕾期、苗期和吐絮期,4个生育期在淹水2~10 d条件下的平均减产率分别为28.0%、12.9%、7.3%和2.9%。在棉花苗期,当淹水不超过6 d时,如果排涝及时,其形态指标及产量构成均能在吐絮期恢复至与...
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棉花不同生育期淹水历时对其生长状况和产量构成的影响
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TN_cdi_proquest_journals_3098248894
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https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_proquest_journals_3098248894
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1672-3317
