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以黑龙江垦区主栽品种空育 131和垦稻 8号为材料 ,研究了寒地水稻旱育稀植分蘖发生特点、生产力及米质。结果表明 :两品种各级蘖随分蘖蘖位、蘖次升高 ,茎长、穗长、穗出现率、成穗率降低 ;主茎上 1次分蘖生产力最高 ,随分蘖蘖次升高 ,生产力降低 ,两品种 5～ 7叶同伸蘖生产力较高 ,其中 6叶同伸蘖生产力最高 ,随蘖位、蘖次升高米质降低
Taking the cultivars of “Kongyu 131” and “Kenao 8” as cultivars in Heilongjiang Reclamation Area as experimental materials, the characteristics of tillers, the productivity and the quality of rice in cold and drought cultivation were studied. The results showed that the tillers at two grades increased with tillering and tillering times, stem length, ear length, ear emergence rate and ear percentage. The first tillering productivity on the main stem was the highest, with tillering and tillering times increasing, the productivity Decreased, the two varieties with 5 to 7 leaves with high tiller productivity, including 6 leaves with the highest tillering productivity, with tillering position, tillering times lower quality of rice