论文部分内容阅读
IR-8是国际水稻研究所1962年旱季用菲律宾当地推广的高秆籼稻皮泰(Peta)和我国台湾省低脚乌尖杂交育成的。在1965年杂交第五代定名。经1965年至1966年的鉴定,IR-8的产量远远超过其它亲本,在菲律宾亩产1278斤,比皮泰提高1.7倍;在泰国十几个品种比较中居首位,亩产864斤,比皮泰高1.6倍,比低脚乌尖高1.9倍。在鉴定的基础上,此品种推广到世界各地。亚洲热带地区1968年至1969年由于推广
IR-8 was developed by the International Rice Research Institute (IRRI) in the dry season of 1962 with the high-stalk indica Peta popularized locally in the Philippines and the lowland Pointe of Taiwan (Taiwan). In 1965 hybrid fifth generation named. According to the identification of 1965 to 1966, the output of IR-8 far exceeded that of other parents and reached 1278 kg per mu in the Philippines, 1.7 times higher than that of Pitai. In comparison with more than 10 varieties in Thailand, the yield of IR-8 was 864 kg per mu, Pittai 1.6 times higher than the low-toothed high 1.9 times. On the basis of identification, this species is extended to all over the world. The tropical region of Asia from 1968 to 1969 due to promotion