The Effects of Different Altitudes on the Physiological Changes of Oriental Lily Bulbs during Dormancy Releasing

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	The Effects of Different Altitudes on the Physiological Changes of Oriental Lily Bulbs during Dormancy Releasing
	Mu Ding; Du Yusong; Fan Yanyana; Zhang Yixian
刊名	XI INTERNATIONAL SYMPOSIUM ON FLOWER BULBS AND HERBACEOUS PERENNIALS
	2013
卷号	1002 页码:179-185
关键词	bulb dormancy lily physiological change
ISSN号	0567-7572
通讯作者	Mu Ding
英文摘要	This experiment was conducted to investigate the effects of different altitudes on dormancy and dormancy breaking of lily bulb. The cultivars 'Sorbonne' and 'Siberia' were used. The bulbs from the region of different altitudes, 2300 and 1900 m, were stored in moist peat moss for 9 weeks under 4 degrees C. The sucrose contents appeared increased firstly and decreased later in various parts of the bulbs. Sucrose contents in the daughter bulb and growing point of the bulb from higher altitude reached the highest level earlier than that from lower altitude. The sucrose related enzyme activeness was risen up. At the time of dormancy broken, SS (sucrose synthase) activeness achieved the maximum, and the SPS (sucrose phosphate synthase) achieved the maximum before dormancy broken. The Inv (invertase) activeness showed a rising tendency during the cold treatment. The daughter bulb's enzyme is higher than that of the mother bulb exactly, and the growing point's enzyme activity was higher than that of the inner layer and the outer layer scales. But the enzyme activeness of the bulbs from different altitude had little difference. We found the soluble solid contents similar with the sucrose content, when soluble solid contents achieved a peak, the bulb's dormancy was broken. The bulbs from lower altitude needed longer time than that from higher latitude for dormancy releasing under 4 degrees C treatment. The time of dormancy releasing of the bulbs of 'Siberia' and 'Sorbonne' from altitude 2300 m needed 6 weeks, whereas, that from 1900 m needed only 4 weeks in our experiment. The time length of dormancy breaking of the bulbs in our experiments was much shorter than that of the normal ones. We think that it is because the bulbs stayed in the field too long, but were not dug out on their right time of maturity. On the other hand, our experiments showed that although the value of soluble solid contents measured by refractometer does not equal to the soluble sugar content, it can be as a basis of determining the dormancy breaking of lily bulbs.
学科主题	Agronomy ; Plant Sciences ; Horticulture
语种	英语
出版者	INT SOC HORTICULTURAL SCIENCE
WOS记录号	WOS:000333755000021
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/101073]
专题	蔬菜花卉研究所_其他01
作者单位	Chinese Acad Agr Sci, Inst Vegetables & Flowers, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Mu Ding,Du Yusong,Fan Yanyana,et al. The Effects of Different Altitudes on the Physiological Changes of Oriental Lily Bulbs during Dormancy Releasing[J]. XI INTERNATIONAL SYMPOSIUM ON FLOWER BULBS AND HERBACEOUS PERENNIALS,2013,1002:179-185.
APA	Mu Ding,Du Yusong,Fan Yanyana,&Zhang Yixian.(2013).The Effects of Different Altitudes on the Physiological Changes of Oriental Lily Bulbs during Dormancy Releasing.XI INTERNATIONAL SYMPOSIUM ON FLOWER BULBS AND HERBACEOUS PERENNIALS,1002,179-185.
MLA	Mu Ding,et al."The Effects of Different Altitudes on the Physiological Changes of Oriental Lily Bulbs during Dormancy Releasing".XI INTERNATIONAL SYMPOSIUM ON FLOWER BULBS AND HERBACEOUS PERENNIALS 1002(2013):179-185.