文献类型：期刊文献

英文题名：Variation in Photosynthetic Traits and Correlation with Growth in Teak (Tectona grandis Linn.) Clones

作者：Huang, Guihua[1] Liang, Kunnan[1] Zhou, Zaizhi[1] Yang, Guang[1] Muralidharan, Enarth Maviton[2]

第一作者：黄桂华

通信作者：Huang, GH[1]

机构：[1]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Guangdong, Peoples R China;[2]Kerala Forest Res Inst, Peechi 680653, Kerala, India

年份：2019

卷号：10

期号：1

外文期刊名：FORESTS

收录：;EI(收录号：20190206370431);Scopus(收录号：2-s2.0-85059766261);WOS:【SCI-EXPANDED(收录号:WOS:000458910800044)】；

基金：This work was supported by the ["Fundamental Research Funds for the Central Non-profit Research Institution of CAF" (grant number: No. CAFYBB2017ZA001-7)] and [the National Key Research and Development Program of China " Research Project on Teak Cultivation Techniques" (grant number: 2016YFD0600602)].

语种：英文

外文关键词：gas exchange; chlorophyll fluorescence; growth trait; genetic variation; early selection

摘要：In order to interpret the patterns of genetic variation of photosynthesis and the relationships with growth traits within gene resources of teak (Tectona grandis Linn.), gas exchange, and chlorophyll fluorescence parameters, growth traits of plants in nursery and field trials were measured for 20 teak clones originated from different countries. The results show that there was abundant genetic variation in gas exchange, chlorophyll fluorescence, and growth among the teak clones. The measured traits were found to have generally high heritability (h(2)) except for intercellular concentration of carbon dioxide (CO2) (C-i). The net photosynthetic rate (P-n), seedling height, and individual volume of wood were significantly correlated with each other, and seedling height was significantly correlated with plant height in field trials, suggesting that P-n and seedling height can be useful in teak breeding. Teak clones 7029, 71-5, 7219, 7412, and 7122, and provenances 3070, 3074, and 3071 had higher photosynthetic rates, and can be regarded as a key resource in teak improvement programs. This work provides useful information for teak breeding and germplasm resource management.