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|Table of Contents|

石蒜叶期生物量、根系活力的动态变化及更替规律(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2018年01期
Page:
55-59
Column:
研究论文
publishdate:
2018-01-31

Article Info:/Info

Title:
Dynamic change in biomass, root vigor and replacement rate during the green leaf period of Lycoris radiat
Article ID:
1000-2006(2018)01-0055-05
Author(s):
CAI Junhuo1LI Jinfeng1WEI Xuying12ZHANG Lu13*
1. College of Landscape and Art, Jiangxi Agricultural University, Nanchang 330045,China; 2. College of Art,Jiangxi Finance and Economics University,Nanchang 330032,China; 3. 2011 Collaboration Innovation Center of Jiangxi Typical Trees Cultivation and Utilization,Jiangxi Agricultural University, Nanchang 330045,China
Keywords:
Keywords:Lycoris radiata biomass green leaf period root growth and replacement root vitality
Classification number :
S682.2
DOI:
10.3969/j.issn.1000-2006.201706055
Document Code:
A
Abstract:
【Objective】To further elucidate the special habits of the non-flowering and leaf periods of Lycoris radiata, it is necessary to explore the rate of growth and development of different organs(roots, bulbs and leaves). 【Method】The biomass composition(bulbs, roots and leaves), root vigor, and the replacement rate for L. radiata during the leaf period were studied with the combined methods of Triphenyltetrazolium chloride(TTC )and root scanning. 【Result】 During the leaf period(from October to April in the next year), the total biomass of L. radiata continued to increase, and the dry weight of leaves and roots experienced similar trends in change in dry weight(initially increasing and then decreasing).However, they reached a maximum in December and January. Conversely, the bulbs exhibited a different trend(continuously increasing)during the same time, and their dry weight was the highest in May. 【Conclusion】The results showed that the growth rhythm of roots and leaves was similar, although the root phenology was slightly earlier. During the leaf phase, there was scarcely any root germination, but root elongation growth occurred. In addition, the old roots declined gradually from January to April, and new roots germinated in May. Furthermore, new secondary roots mainly germinated from November to December.

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Last Update: 2018-03-30