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Journal of Yunnan Agricultural University 2017, Vol. 32 Issue (4) :685-690    DOI: 10.16211/j.issn.1004-390X(n).2017.04.017
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Preliminary Study on the Effect of Exogenous NO on the Germination and Endogenous Hormone Contents of Lily Bulb
SUN Liang1, WANG Youguo1, JIA Wenjie2, WANG Qi3
1. College of landscape and horticulture, Yunnan Agricultural University, Kunming 650201, China;
2. Yunnan Academy of Agricultural Sciences, Kunming 650201, China;
3. Yunnan Forestry Technological College, Kunming 650201, China

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Abstract 

[Purpose] Our aim was to study the effect of exogenous NO to the germination and the regulation of endogenous hormone contents in Siberia Lily.[Method] We used 5 different concentration gradients exogenous NO donor solutions, including 0, 1, 5, 10, 20 mmol/L, and 0.5 mmol/L NO scavenger to treat the small lily bulbs for 30 days.[Results] NO had influence on the germination and growth of lily bulbs, 10 mmol/L SNP solution was the most obvious one that the germination rate, bud length, root length and bulbs weight of the lily bulbs were generally higher than those of the control and other treatments; high concentration NO (20 mmol/L), low concentration NO (1 mmol/L) and the inhibition of NO treatments inhibited the germination and growth of lily bulblet. We found that ABA content decreased, while GA and IAA contents showed an obvious increasing trend during the germination and growth process of lily bulblet compared with CK.[Conclusion] The results showed that it can be concluded that the appropriate concentration of exogenous NO can promote the germination of lily bulb, and exogenous NO has a promoting effect on the germination of lily bulbs.

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SUN Liang
WANG Youguo
JIA Wenjie
WANG Qi
KeywordsNO   lily   germination rate   root length   endogenous hormone     
Received 2016-06-18;
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SUN Liang, WANG Youguo, JIA Wenjie, WANG Qi.Preliminary Study on the Effect of Exogenous NO on the Germination and Endogenous Hormone Contents of Lily Bulb[J]  Journal of Yunnan Agricultural University, 2017,V32(4): 685-690
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