Variation in morphophysiological characters of fruits of Trigonobalanus doichangensis (Fagaceae) according to individual trees, populations and years

doi:10.1007/s10681-008-9716-3

	Variation in morphophysiological characters of fruits of Trigonobalanus doichangensis (Fagaceae) according to individual trees, populations and years
	Zheng, Yan-Ling 1,2; Sun, Wei-Bang1
通讯作者	wbsun@mail.kib.ac.cn
	2008-11-01
发表期刊	EUPHYTICA
ISSN	0014-2336
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
学科领域	Agronomy ; Plant Sciences ; Horticulture
DOI	10.1007/s10681-008-9716-3
收录类别	SCI
语种	英语
WOS记录号	WOS:000259697100023
引用统计
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
推荐引用方式 GB/T 7714	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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