JU Xia,LI Zongren,HAN Yinglong.Effects of Different Light Intensity on Physiological Characteristics of Phaseolus vulgaris L. Leaves[J].Northern Horticulture,2019,43(04):74-80.[doi:10.11937/bfyy.20182551]
不同光照强度对矮秧菜豆叶片生理特性的影响
- Title:
- Effects of Different Light Intensity on Physiological Characteristics of Phaseolus vulgaris L. Leaves
- 文献标志码:
- A
- 摘要:
- 以矮秧菜豆新品种“青菜豆2号”为试验材料，在不同的遮荫程度和遮荫时间处理下，对其叶片中的叶绿素、可溶性蛋白质、可溶性糖、脯氨酸（Pro）、丙二醛（MDA）含量及过氧化物酶（POD）进行测定，通过比较分析，研究了不同遮荫度下矮秧菜豆叶片生理指标的变化，以期为矮秧菜豆优化栽培管理措施提供依据。结果表明：不同的遮荫条件下“青菜豆2号”均能正常生长，其中总叶绿素含量随着遮荫度的增强而增加，叶绿素（a/b）的值随着遮荫度的增强而减小；菜豆叶片在CK处理下，可溶性蛋白质含量的积累明显，短期的遮荫处理有利于可溶性糖含量的增加，而长期的遮荫则不利于可溶性糖的积累；叶片中POD活性变化随着遮荫时间的延长而呈现“W”型变化趋势；不同遮荫处理下的脯氨酸（Pro）含量之间无明显差异，变化规律不明显，MDA则以高遮荫度条件下含量的增加表现出对植株产生的胁迫作用。
- Abstract:
- A new variety ‘Green Bean No.2’ of Phaseolus vulgaris L. was taken as material,the contents of chlorophyll,soluble protein,soluble sugar,free proline(Pro),malondialdehyde(MDA) and peroxidase activity(POD) in leaves were measured under different shade degree and shade time.The changes of leaf physiological indexes in different shade degree use the methods of comparing,analyzing and studying,which provided basis data for management and measures of optimal cultivation kidney bean.The results indicated that ‘Green Bean No.2’ could grow normall under different shade condition,total chlorophyll content increased with the increase of shade degree,chlorophyll a/b value decreased with the increase of shade degree.Leaves of Phaseolus vulgaris L.under the treatment of the shade CK,the accumulation of soluble protein content,short-term shade treatment was beneficial to the increase of the content of soluble sugar,but long-term shade was the disadvantage of soluble sugar accumulation;POD activity of leaves showed a trend of ‘W’ type change with the increase of shade time；proline(Pro) content was not obvious under different lighting conditions,the law of change was not obvious either.Raising of malondialdehyde(MDA) content under high shading conditions showed that it was effective on plant under stress.
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备注/Memo
第一作者简介：巨霞（1977-），女，硕士，副教授，研究方向为作物栽培与耕作。E-mail：14709718855@126.com.基金项目：科技部农业科技成果转化资金资助项目（2013GB2G200509）；青海省科技计划资助项目（2011-N-508）。收稿日期：2018-10-17