【摘要】 以香型粳稻光温敏不育系0259S为母本,与香型粳稻父本gr75测交,育成了全香型两系杂交晚粳稻新组合粳两优5975。该组合在2006—2007年湖北省晚稻区试中,2 a平均单产7.30 t/hm2,比对照鄂粳杂1号增产5.16%;稻米品质达国标1级优质稻谷标准;耐肥抗倒性较强,抗寒性好,于2010年3月通过湖北省品种审定。更多还原

【Abstract】 Jingliangyou 5975,derived from 0259S,an aromatic japonica PTGMS line,and gr75,an aromatic japonica line,is a new aromatic two-line late japonica hybrid rice combination.It yielded 7.30 t/hm2 on average,5.16% higher than that of the control hybrid Ejingza 1,in the regional trials for late rice of Hubei Province in 2006 and 2007.Its grain quality met the national standards of the first class of fine quality rice.It had a strong lodging resistance,a good tolerance to higher fertilization and a good cold tolerance.In March,2010,it was certified for commercial production by Hubei Provincial Crop Variety Appraisal Committee.The breeding procedure,major characteristics,cultivation and hybrid seed production techniques of Jingliangyou 5975 were introduced in detail.更多还原