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1特征特性该组合株型挺拔,株高约120cm,与汕优63相当或稍矮。穗大粒多,穗粒结构协调,一般有效穗约255万/hm~2,穗粒数180～200粒,结实率90%左右,千粒重约27g。Ⅱ优650全生育期约140d,比汕优63迟2.5d左右,播始历期130d左右。生长清秀,后期熟色好,茎秆粗壮,耐肥抗倒。抗稻瘟病,中抗白叶枯病,丰产、优质、适口性好。
1 Characteristics The combination of plant type tall and straight, plant height of about 120cm, Shanyou 63 or slightly shorter. Spike large grain, spike grain structure, the general effective spike about 2550000 / hm ~ 2, spikelets 180 ~ 200, seed setting rate of about 90%, 1000g weight about 27g. The whole growth period of Ⅱ You 650 was about 140 days, about 2.5 days later than that of Shanyou 63, and the duration of the initial stage was about 130 days. Growing handsome, late cooked color, stalks sturdy, resistant to lodging. Blast resistance, resistance to bacterial blight, high yield, high quality, good palatability.