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(上接第9期第50页)7.8陵两优2687.8.1审定编号:国审稻2008008。7.8.2选育单位:湖南亚华种业科学研究院。7.8.3品种来源:湘陵628S×华268。7.8.4特征特性:属籼型两系杂交水稻。在长江中下游作双季早稻种植,全生育期平均112.2天,比对照金优402长0.3天。株型适中,茎秆粗壮,株高87.7 cm。亩有效穗数22.8万穗,穗长19.0 cm,穗总粒数104.7粒,结实率87.1%,千粒重26.5 g。抗性:稻瘟病综合指数5.3级,穗瘟损失率最高7级,抗性频率90%;白叶枯病平均6级,最高7级;褐飞虱3级,白背飞虱3级。
(Continued from page 9 of 50) 7.8 Ling Liang You 2687.8.1 Validation ID: State review of rice 2008008.7.8.2 Breeding unit: Hunan Yahua Seed Industry Research Institute. 7.8.3 Source of Species: Xiangling 628S × Hua 268.7.8.4 Characteristics: Two-line indica hybrid rice. In the middle and lower reaches of the Yangtze River for double season early rice planting, the whole growth period average 112.2 days, compared with the control Jinyou 402 for 0.3 days. Moderate plant type, stem stout, height 87.7 cm. The effective spikes per acre were 228,000 spikes, 19.0 cm spikes, 104.7 spikelets, 87.1% seed setting and 26.5 g grain weight. Resistance: rice blast comprehensive index of 5.3, panicle blast loss rate of up to 7, the frequency of 90% resistance; bacterial blight average 6, the highest 7; 3 BPH, 3 white-backed planthopper.