【摘要】 经数年抗性鉴定表明,杂交育成的中熟早籼新品种HA79317-4和湘早籼3号(HA79317-7)抗白叶枯病、稻瘟病、褐飞虱、白背飞虱、黑尾叶蝉,而且抗性稳定。1981—1987年品比、省区试、南方稻区区试及大面积生产实践结果表明,亩产400公斤左右,比当地同熟期主栽品种增产5.81—11.01％,于1985年评为全国优质米品种,获农牧渔业部奖状和金杯奖。这两个新品种适宜于长江中、下游流域和以南地区种植,至1987年省内外已推广面积达1000万亩以上。更多还原

【Abstract】 Two early indica rice varieties of medium-growth duration HA79317-4, HA79317-7(Xiang Zaoxian 3) had been bred and evaluated during 1981-1985. They were proved to be resistant to bacterial leaf blight, rice blast, brown planthoppers, white back planthoppers, green leafhoppers and the resistance was stable. In Hunan Province and south rice region their grain yields in average were 6 t/ha and even over 6.7t/ha, 5.81-11.01% higher than local medium-growth duration varieties.Xiang Zaoxian 3 was evaluated as a cultivar of high quality.更多还原