【摘要】 龙稻7号(哈02-220)是从五优稻1号的变异植株中经过系统选育而成。主茎12片叶,生育天数为137 d,需要活动积温2 500℃,各种综合抗性较强。两年区域试验平均产量为7 585.2 kg/hm2,比对照品种垦稻10号,平均增产6.6%。生产试验平均产量为8 100.2 kg/hm2,比对照品种垦稻10号,平均增产10.1%。米质优,各项指标均达到国家优质米标准。2005年审定推广。更多还原

【Abstract】 Longdao No.7(Ha 02-220) was selected from variated plant of rice Wuyoudao No.1.Its number of leaves on main stem was twelve,maturation period was 137 d,active accumulated temperature was 2 500 ℃,and all kinds of integrated resistance were obviously strong.Average yield of two years regional trial and one year production trial were 7 585.2 kg/hm~2 and 8 100.2 kg/hm~2 respectively,and average increased yield were 6.6% and 10.1% compared with control Kendao No.10,respectively.All kinds of items reached state high quality rice standard and examined and approved in 2005.更多还原