元阳水稻地方品种多样性变化及换种规律研究
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国家973计划资助项目(2006CB100200)。


Changes of Rice Landraces Diversity and Rules of Seed Exchange in Yuanyang of Yunnan
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    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换种情况,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。

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    To evaluate the intrinsic factors of Hani rice landraces sustainable development, the rice landraces diversity in Yuanyang County and seed exchange in Qingkou village was surveyed. The results showed that the diversity of rice landraces in Yuanyang county reduced slower than that in modern culture region. In terms of altitude gradient and marital status, the seed exchange among Hani people has clear rules. 68.6 percent of exogamous households exchange seed outside their village and 55.1% inside, the percent of purchase rice seeds is very low; 35 % exchange seed from low to high, 40 % from high to low,also 25 % nearly at same altitudes. The results indicate that the frequent and regular seed exchange are important factors for sustainable development of Hani rice landraces.

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高东,何霞红,朱有勇.元阳水稻地方品种多样性变化及换种规律研究[J].植物遗传资源学报,2011,12(2):311-313.

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