| 叶面喷施抗蒸剂对苹果树水分状态的影响 |
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| 引用本文： | 夏阳.叶面喷施抗蒸剂对苹果树水分状态的影响[J].果树学报,1996(1). |
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| 作者姓名： | 夏阳 |
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| 作者单位： | 山东农业大学园艺系，甘肃农业大学园艺系 |
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| 摘 要： | 研究了叶面喷施抗蒸剂对盆栽苹果水分状态的影响。结果表明：抗旱剂一号（主要成分为黄腐酸）可明显降低树体蒸腾（最低时为对照的３９．２１％）、提高气孔阻力（最大时为对照的２４３．９６％）和叶片水势（一般比对照提高０．２－０．４ＭＰａ、最大０．７ＭＰａ），并对叶温未产生明显的影响（变化一般小于１℃），有效作用期长达１５ｄ以上。在果树旱期喷施，可明显改善树体水分状态。腐殖酸效果不明显。
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| 关 键 词： | 苹果树 抗蒸剂 蒸腾 气孔阻力 水势 叶温 |
Effects of Anti-transpirants to Water Status of Apple Trees |
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| Xia Yang.Effects of Anti-transpirants to Water Status of Apple Trees[J].Journal of Fruit Science,1996(1). |
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| Authors: | Xia Yang |
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| Abstract: | Three-year-old potted apple trees cv. Liao-fu were used in the experiment. Results showed that fulvicacid decreased the transpiration(the minimum decrease was 39.21%lower than the control),significantly in-creased the stomatal resistance(the maximum increase was 243.96%when compared with the control)andraised leaf water potential(0.2- 0.4 MPa in general,reached the maximum of 0.7 MPa).While there hadno significant influence on leaf temperature(the differences were less than 1℃).The effect could last formore than 15 days. Spray application during drought period could improve significantly the water status offruit trees. No appreciable effect of humus acid was noted. |
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| Keywords: | Apple trees Anti- transpirants Transpiration Stomatal resistance Water potential |
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