Three rice landraces that have been continuously cultivated in Yuanyang County for hundreds of years by the local Hani people and three modern varieties cultivated in this area for 3–5 years were comparative tested on seven major agronomic characteristics at six different altitudes in the Yuanyang paddy field. The results indicated that agronomic characteristics of the landrace varieties, such as plant height, panicle length and number of effective panicles of landraces had no significant difference at different altitudes, whereas, those agronomic traits fluctuated in the modern varieties. In the Yuanyang terrace area, the Yuanyang landraces showed greater diversity in phenotype and better adaptation compared to the modern varieties.
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1 March 2011
Comparison of Agronomic Traits between Rice Landraces and Modern Varieties at Different Altitudes in the Paddy Fields of Yuanyang Terrace, Yunnan Province
He Xiahong,
Sun Yan,
Gao Dong,
Wei Fugang,
Pan Lei,
Guo Cunwu,
Mao Ruzhi,
Xie Yong,
Li Chengyun,
Zhu Youyong
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Journal of Resources and Ecology
Vol. 2 • No. 1
March 2011
Vol. 2 • No. 1
March 2011
agronomic trait
long—lasting varieties
rice landrace
Yuanyang terrace