元阳水稻地方品种多样性变化及换种规律研究  

Changes of Rice Landrace Diversity and Rules of Seed Exchange in Yuanyang

作　　者：高东[1] 何霞红[1] 朱有勇[1] 

机构地区：[1]云南农业大学/农业生物多样性应用技术国家工程研究中心/农业生物多样性和控制病虫害教育部重点实验室/云南省植物病理重点实验室,昆明650201

出　　处：《植物遗传资源学报》2011年第2期311-313,共3页Journal of Plant Genetic Resources

基　　金：国家"973"计划资助项目(2006CB100200)

摘　　要：为了评估哈尼水稻地方品种可持续发展的内在因素,调查了元阳县水稻地方品种的多样性和箐口村水稻种子的更换情况,结果显示元阳水稻地方品种多样性的减少比发达地区缓慢的多。在婚姻状况和海拔梯度两方面,哈尼的换种表现出明显的规律性。68.6%的非本村互婚户从外村引种,55.1%的本村互婚户在村内互换种子,购买种子的农户极少;35%的农户从低海拔调换种子,40%的农户从高海拔调换种子,25%的农户种子来自几乎相同的海拔。结果暗示了频繁、规律的换种是保证哈尼水稻地方品种可持续发展的重要因素。To evaluate the intrinsic factors of Hani rice landrace sustainable development,the rice landrace diversity in Yuanyang County and seed exchange in Qingkou village was surveyed. The results showed that the diversity of rice landraces in Yuanyang County was reduced slower than that in modern culture region. In terms of altitude gradient and marital status,the seed exchange among Hani people has a clear rules;68.6% exogamous households exchanged seed outside their village and 55. 1% inside,the ratio of purchase rice seeds was very low; 35% exchanged seed from low to high,40% from high to low,and 25% at nearly same altitudes. These results indicate that the frequent and regular seed exchanges are important factors for sustainable development of Hani rice landraces.

关 键 词：水稻 多样性 哈尼梯田 地方品种 种子交换 

分 类 号：S511[农业科学—作物学]