On-farm conservation of 12 cereal crops among 15 ethnic groups in Yunnan (PR China)

doi:10.1007/s10722-013-0047-4

	On-farm conservation of 12 cereal crops among 15 ethnic groups in Yunnan (PR China)
	Xu, Furong 1,2,3,4; A, Xinxiang 1,2,3,4; Zhang, Feifei 1,2,3,4; Zhang, Enlai 1,2,3,4; Tang, Cuifeng 1,2,3,4; Dong, Chao 1,2,3,4; Yang, Yayun 1,2,3,4; Liu, Xu 5; Dai, Luyuan 1,2,3,4
刊名	GENETIC RESOURCES AND CROP EVOLUTION
	2014
卷号	61 期号:2 页码:423-434
关键词	Cereals Ethnic minority Ethnobotany Minor crops On-farm conservation Varietal richness Tannon
ISSN号	0925-9864
DOI	10.1007/s10722-013-0047-4
通讯作者	Xu, Furong
英文摘要	Due to the rapid diffusion of improved crop varieties, fewer and fewer landraces are being grown by farmers. The on-farm conservation of crop landraces has been proposed as means of conserving potentially important crop germplasm as an alternative to its ex situ conservation in gene banks, but the effectiveness of this approach is unproven. Particular attention is currently focused on producers sited in remote regions. Here, we report the outcomes of a survey focusing on the conservation and utilization of landraces of corn, rice, wheat, barley, buckwheat, broomcorn sorghum, Job's tears (coix), oats and finger, foxtail, broomcorn and barnyard millets grown by 15 ethnic groups from Yunnan province (China). Many local varieties are still in existence through their utilization on-farm. The varietal richness per village sampled was estimated to be 3.5 (maximum of 17), with rice and maize being the most heterogeneous, and glutinous sorghum and barnyard millet the least. Varietal richness was significantly and positively correlated with the number of villages surveyed, the number of families and the head of population. The choice of crops and varieties maintained varied between the ethnic groups, with the more westerly and north westerly situated villages conserving the most landraces. The number of crop species used was negatively correlated with per capita annual income, while the correlation coefficient between varietal richness and per capita annual income was less pronounced. The major factors determining the level of on-farm conservation were remoteness, fragmentation of the arable area and cultural needs. The data provide baseline information for the elaboration of optimal strategies for in situ conservation and utilization of crop germplasm in China.
学科主题	Agronomy ; Plant Sciences
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000330953400011
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/4937]
专题	作物科学研究所_种质资源保存与研究中心
作者单位	1.Yunnan Acad Agr Sci, Biotechnol & Germplasm Resources Inst, Kunming 650223, Yunnan, Peoples R China 2.Yunnan Prov Key Lab Agr Biotechnol, Kunming, Peoples R China 3.Minist Agr, Key Lab Southwestern Crop Gene Resources & Germpl, Kunming, Peoples R China 4.Minist Agr, Sci Observat Rice Germplasm Resources Yunnan, Kunming 650223, Peoples R China 5.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Xu, Furong,A, Xinxiang,Zhang, Feifei,et al. On-farm conservation of 12 cereal crops among 15 ethnic groups in Yunnan (PR China)[J]. GENETIC RESOURCES AND CROP EVOLUTION,2014,61(2):423-434.
APA	Xu, Furong.,A, Xinxiang.,Zhang, Feifei.,Zhang, Enlai.,Tang, Cuifeng.,...&Dai, Luyuan.(2014).On-farm conservation of 12 cereal crops among 15 ethnic groups in Yunnan (PR China).GENETIC RESOURCES AND CROP EVOLUTION,61(2),423-434.
MLA	Xu, Furong,et al."On-farm conservation of 12 cereal crops among 15 ethnic groups in Yunnan (PR China)".GENETIC RESOURCES AND CROP EVOLUTION 61.2(2014):423-434.