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Effects of Irrigation on the Growth, Development and Yield of Peanut at Different Growth Stages
Author(s): 
Pages: 2187-2193
Year: Issue:  12
Journal: Xinjiang Agricultural Sciences

Keyword:  peanutirrigationagronomic traitsphotosynthetic characteristicsyield;
Abstract: [目的]研究不同生育时期补充灌水对花生生长及产量的影响,为确定花生最有效的灌水时期提供理论依据.[方法]以花育22号、花育25号、花育20号和花育27号为试验材料,在大田人工控制水分条件下,设置开花期灌水、开花期+荚果期灌水、荚果期灌水和不灌水(对照)4个处理,对不同处理下植株农艺性状、光合特性及产量进行测定分析.[结果]不同生育时期补水能显著增加植株主茎高、侧枝长等形态指标,增加土壤含水量和产量,提高叶片光合特性,增加叶片的光合速率、蒸腾速率、气孔导度和胞间CO2浓度.其中开花期+荚果期灌水能最大程度的增加花生产量,其次是开花期,荚果期灌水对产量的增加最小.单株饱果数的增加和单株秕果数的降低是增加花生产量的主要原因.[结论]开花期+荚果期灌水是提高花生产量最有效的灌水方式.
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