Variation in morphophysiological characters of fruits of Trigonobalanus doichangensis (Fagaceae) according to individual trees, populations and years
Zheng, Yan-Ling1,2; Sun, Wei-Bang1
2008-11-01
发表期刊EUPHYTICA
ISSN0014-2336
卷号164期号:1页码:231-238
摘要Trigonobalanus doichangensis is recognized as a rare and endangered plant of China. The morphological and physiological traits of fruits were investigated in one population over 2 years (2006-2007) and in four populations during 2007 in order to facilitate ex-situ conservation and eventual reforestation through planting of propagules. The results indicated that morphological traits including fruit length, fruit width and 1,000-fruit weight showed significant variation among individual trees within populations (P < 0.01), however, not among populations. And each of them had significant positive correlation with each other (P < 0.01). Seed abortion occurred, and there was significant variation in percentage of fruit fill among populations and among individual trees within populations, whereas, percentage of fruit fill showed no correlation with the morphological traits. As for fruit germination, germination percentage, germination index and vigor index presented significant variation among populations and among individual trees within populations. The three germination-related indices had significant positive correlations with each other (r >= 0.9, P < 0.01) and with percentage of fruit fill (r > 0.86, P < 0.01), however, possessing weak correlations with morphological traits. It was also found that each of the traits mentioned above showed significant variation among individual trees within years, however, not between years. In addition, more than 48% of the variation occurred among individual trees both within populations and within years in all the fruit characters. We suggest that collecting fruits from various individuals at each of populations will be the preferred strategy to conserve the most genetic diversity of the species.
关键词Population Variation Seed Abortion Seed Germination Seed Mass
资助信息This study was supported by the special fund of China's Yunnan government for young and middle-aged qualified scientists and technicians (grant number 2006PY01-48 to W.-B. Sun)
学科领域Agronomy ; Plant Sciences ; Horticulture
DOI10.1007/s10681-008-9716-3
收录类别SCI
语种英语
WOS研究方向Agriculture ; Plant Sciences
WOS类目Agronomy ; Plant Sciences ; Horticulture
WOS记录号WOS:000259697100023
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/2465
专题资源植物与生物技术所级重点实验室
作者单位1.Chinese Acad Sci, Kunming Inst Bot, Kunming Bot Garden, Kunming 650204, Meylan, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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Zheng, Yan-Ling,Sun, Wei-Bang. Variation in morphophysiological characters of fruits of Trigonobalanus doichangensis (Fagaceae) according to individual trees, populations and years[J]. EUPHYTICA,2008,164(1):231-238.
APA Zheng, Yan-Ling,&Sun, Wei-Bang.(2008).Variation in morphophysiological characters of fruits of Trigonobalanus doichangensis (Fagaceae) according to individual trees, populations and years.EUPHYTICA,164(1),231-238.
MLA Zheng, Yan-Ling,et al."Variation in morphophysiological characters of fruits of Trigonobalanus doichangensis (Fagaceae) according to individual trees, populations and years".EUPHYTICA 164.1(2008):231-238.
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