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紫色辣椒叶片色素含量对光照度的响应 被引量:3

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摘要 为研究不同光照度对紫色辣椒叶片中色素含量的影响,以3种不同叶色表型的紫色辣椒为试验材料,测定不同遮阴程度处理下紫色辣椒叶片中叶绿素a、叶绿素b、类胡萝卜素和花色素苷含量的变化。结果表明,紫色辣椒对不同光照度有不同响应,表现为:(1)在10%光照度处理下,质体色素含量随着处理时间延长而升高,而花色素苷的含量则随之下降,辣椒叶片也表现出"返绿"现象;而在不遮阴处理下,叶片紫色加深,花色素苷积累增多;(2)花色素苷含量与叶绿素、类胡萝卜素含量的关系,在10%光照度和不遮阴处理下呈负相关,而在30%光照度处理下呈正相关。这一结果揭示:不遮阴处理可以促进紫色辣椒花色素苷的积累,从而有利于紫色辣椒叶片的呈色。
出处 《江苏农业科学》 北大核心 2013年第1期139-143,共5页 Jiangsu Agricultural Sciences
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