Phytochrome control of the growth and development of Rumex obtusifolius under simulated canopy light environments
Phytochrome control of the growth and development of Rumex obtusifolius under simulated canopy light environments
复制标题
模拟冠层光环境下光敏色素对酸模生长发育的控制
DOI：
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发表时间：
1978
期刊：
影响因子：
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通讯作者：
Harry Smith
中科院分区：
文献类型：
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作者：
J. Mclaren;Harry Smith
摘要对钝叶酸模幼苗在模拟遮荫条件下生长发育的研究表明，光照强度和光质对所观察到的响应均有影响。在遮荫条件下，植株的干物质、叶面积和净同化率都较低。叶柄伸长仅在植物从非遮荫环境转移后才在遮荫条件下发生。光质量的影响与光敏色素光平衡有关，光敏色素光平衡由植被冠层下发现的远红外相对光子通量增加而建立。
Abstract Studies on the growth and development of Rumex obtusifolius seedlings under simulated shade conditions show that both light quantity and quality contribute to the observed responses. In the shade situation the plants have lower dry matter, lower leaf area and lower net assimilation rates. Petiole elongation occurs under shade conditions only after transfer of the plants from non-shade environments. The effects of light quality are related to phytochrome photoequilibria set up by the increased relative photon flux in the far-red found under vegetation canopies.