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Effect of Illumination Intensities on Growth and Hormone Contents of Tulipa gesneriana L.(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2012年01期
Page:
84-86
Research Field:
Publishing date:

Info

Title:
Effect of Illumination Intensities on Growth and Hormone Contents of Tulipa gesneriana L.
Author(s):
WANG Xiao-dong1; TANG Huan-wei2; QU Yan-ting2
1. Forest Botanical Garden of Heilongjiang Province,Harbin,Heilongjiang 150040;
2.Institute of Natural Resources and Ecology, Heilongjiang Acedemy of Sciences,Harbin,Heilongjiang 150040
Keywords:
Tulipa gesneriana L.;  illumination intensity;  growth;  hormone contents
PACS:
S 682.2+63
DOI:
-
Abstract:
Tulips gesneriana L. were treated with full light（CK）,55%～60% light（B1）,25%～30% light（B2）,10%～15% light（B3）different illumination intensities by shading in order to study the effect of illumination on growth and hormone contents. The results indicated that with a decreasing of illumination intensity, plant height increased, the average leaf length and leaf area increased. At the same time, because of excessive shading, the blossom rate decreased and the corolla was smaller. Low light treatments increased the contents of IAA, GA3 and decreased the content of ABA. Shading decreased ABA/IAA and ABA/GA3, lower ABA/IAA and ABA/GA3 were not conductive to the flowing.

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Last Update: 2014-08-23