不同光照对黑老虎生长及叶片SPAD值的影响

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不同光照对黑老虎生长及叶片SPAD值的影响

作者：漆小雪韦霄陈宗游沈浩峰

来源：《湖北农业科学》2014年第21期

摘要：以黑老虎[Kadsura coccinea （Lem.）A.C.Smith]种子苗为试材，研究了不同光照（100%光照、50%光照、30%光照、10%光照）对黑老虎生长及其叶片SPAD值的影响。结果表明，在100%（全光照）和10%光照下，黑老虎植株矮小，叶片数、叶片长度、宽度及长宽比和冠幅偏小，叶片SPAD值偏低;在30%光照和50%光照下，黑老虎植株高大，叶片数、叶片长度、宽度及长宽比和冠幅大，叶片SPAD值较高。黑老虎生长最适宜的光照范围是30%～50%光照。

关键词：黑老虎[Kadsura coccinea （Lem.）A.C.Smith];光照度;生长;SPAD

中图分类号：R282.71 ; ; ; ;文献标识码：A ; ; ; ;文章编号：0439-8114（2014）19-5192-03

DOI：10.14088/https://www.wendangku.net/doc/30104250.html,ki.issn0439-8114.2014.21.036

Effects of Different Light Intensities on the Growth and SPAD of Kadsura coccinea

（Lem.） A. C. Smith

QI Xiao-xue1，WEI Xiao1，CHEN Zong-you1，SHEN Hao-feng2

（1.Guangxi Institute of Botany， Guangxi Zhuang Autonomous Region and Chinese Academy of Science，Guilin 541006， Guangxi， China;

2.Guilin Purui Biology Technological Development Co.， Ltd.， Guilin 541300， Guangxi，China）

Abstract： The effects of 100%，50%，30% and 10% light intensity on the growth and SPAD of K. coccinea [（Lem.）]A.C.Smith seedlings were studied. The results showed that dwarf plant，leaves ;number， leaves length， leaves width， proportion of the length and width， crown width and SPAD of K. coccinea[（Lem.）]A.C.Smith leaves were small under 100% and 10% light intensity. Tall plant， leaves ;number， leaves length， leaves width， proportion of the length and width， crown width and SPAD of K. coccinea（Lem.） A.C.Smith leaves were big under 50% to 30% light intensity. It is indicated that 50% to 30% light intensity is optimal for the growth of Kadsura coccinea （Lem.） A.C.Smith.