| 苹果（Malus pumila）幼果钙素吸收特性与激素调控 |
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| 引用本文： | 周卫,汪洪,赵林萍,林葆.苹果（Malus pumila）幼果钙素吸收特性与激素调控[J].中国农业科学,1999,32(3):52-58. |
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| 作者姓名： | 周卫 汪洪 赵林萍 林葆 |
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| 作者单位： | 中国农业科学院土壤肥料研究所,农业部植物营养学重点开放实验室,北京,100081 |
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| 摘 要： | 采用田间试验并结合#+45Ca示踪及植株分析等方法研究苹果幼果钙素吸收特性及激素对其过程的调控方式。结果表明，施于叶片的钙极少向果实转移，钙应有针对性直接施至幼果上，适宜的施钙时期为幼果形成1个月内，CaCl#-2喷施的适宜浓度为0.5%。果面施钙显著增加了苹果单果重，改善了果实品质。IAA、GA和NAA均可促进果面钙运往果实内，并导致2%HOAc提取钙与5%HCl提取钙组分增加，IAA虽可促进大量的树体钙向果实转移，却会导致果实钙含量过高，品质变差；GA和NAA则不能夺取树体内的钙，对果实品质无不良影响。
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| 关 键 词： | 苹果 钙素营养 植物激素 |
Study on Characteristics of Calcium Uptake by Young Fruit of Apple (Malus pumila) and Its Regulation by Hormone |
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| Zhou Wei,Wang Hong,Zhao Linping,Lin Bao.Study on Characteristics of Calcium Uptake by Young Fruit of Apple (Malus pumila) and Its Regulation by Hormone[J].Scientia Agricultura Sinica,1999,32(3):52-58. |
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| Authors: | Zhou Wei Wang Hong Zhao Linping Lin Bao |
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| Abstract: | Field trial, pot experiment with 45 Ca tracer, and plant analysis were used to investigate the characteristics of calcium uptake by young fruit of apple and its regulation by IAA,GA and NAA. The results indicated that calcium should be applied directly on the surface of young fruits because calcium applied on leaves could be hardly translated to fruits. The proper Ca applying period was the first month of young fruits formation, and the proper concentration of CaCl2 applied was 0.5%. The weight and quality of fruits could be improved by applying Ca directly on the surface of young fruits. The process of translocating Ca2 from fruit surface into pulp tissue could be accelerated by IAA,GA or NAA, which also led to an increment on 2% HOAc extractable Ca. Meanwhile, the Ca existed in the stalk and leaves could be excessively transported into fruits by applying IAA on the fruit surface, resulting in too much accumulation of Ca in fruit and bad quality of fruit, while no such effects were observed in t |
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| Keywords: | Apples Calcium nutrition Phytohormonehose with GA or NAA |
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