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曾荣获联合国粮农组织“科学奖”的IR_(72)系水稻,1991年在湖南芷江侗族自治县海拔800米的高山区试种成功。 IR_(72)系是菲律宾国际水稻研究所培育的高产水稻品系。目前,全世界已有80多个国家种植,被誉为“稻中之王”。1991年芷江侗族自治县春碧涌镇引进部分种子,在高山区试种,获得成功。亩产达734公斤,比当地栽培的常规稻增产30％,略高于杂交水稻威优63的产量。这一试种成功,为高寒山区水稻高产选用良种
The IR_ (72) rice, which won the “Science Award” of the UN Food and Agriculture Organization, was successfully planted in 1991 in the high mountainous area of Zhijiang Dong Autonomous County of Hunan Province at an altitude of 800 meters. IR_ (72) is a high-yielding rice line cultivated by the International Rice Research Institute of the Philippines. At present, the world has more than 80 countries planted, known as “the king of rice.” In 1991, some seeds were introduced from Spring Pichong Town of Zhijiang Dong Autonomous County, and the seeds were planted in the high mountainous area to achieve success. The per-mu yield reached 734 kilograms, an increase of 30% over the conventional rice cultivated locally and slightly higher than the yield of the hybrid rice Weiyou 63. The success of this trial, for the high yielding paddy mountain selection of elite varieties