P、K、Ca缺失对枇杷幼苗生长发育及生理特性的影响Effects of P、K、Ca deficiency on the development and physiology of Loquat seedling
吴月嫦;谢深喜;
摘要(Abstract)：
利用盆栽,观察了枇杷幼苗缺P、K、Ca时的外部症状和内部组织解剖结构,测定了根系活力,叶绿素含量及光合作用强弱。结果表明:缺P植株叶片暗绿,叶脉紫红色,老叶有坏死斑块易脱落,叶片光合量比对照低,根系发育不良,根系活力降低。缺K植株细弱,老叶有黄斑,叶面不平整,叶绿素含量显著降低,光合量最小。缺Ca植株矮小,叶片小、畸形,新叶边缘出现黄斑,根系发育不良,根皮率增加。
关键词(KeyWords)： 缺素;枇杷幼苗;生长发育;生理特性
基金项目(Foundation):
作者(Author): 吴月嫦;谢深喜;
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参考文献(References)：
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