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国内用“三系”或“两系培育的水稻杂优种,已在生产上开始试验应用。近年来,芜湖地区农科所用“两系”制成的一个杂优稻组合“336×泾紫8-3”具有根系发达、分蘖力强、茎秆粗壮、穗大粒多等优点,但空瘪粒率高,影响产量。杂优种“336×泾紫
In China, “three lines” or “two lines” of hybrid rice varieties have been used in experiments in recent years. In recent years, a hybrid rice combination 336 × Jing Zi 8-3 "has the advantages of developed root system, strong tillering ability, stalks with thick stalk and large spike, etc. However,