不同类型水稻品种(系)钵苗机插综合生产力研究

Research of Comprehensive Productivity on Mechanized Transplanting with Rice Pot-mat Seedling by Different Rice Varieties(Lines)

以25个常规粳稻、杂交籼稻、杂交粳稻品种(系)为试材,开展钵苗机插综合生产力比较研究。结果表明,不同类型水稻品种(系)钵盘育苗秧苗素质杂交籼稻类好于杂交粳稻类,杂交粳稻类好于常规粳稻类;最终成穗数以常规粳稻类最高,杂交籼稻类其次,杂交粳稻类最低,分蘖成穗率以杂交粳稻类最高,常规粳稻类次之,杂交籼稻类最低;经济产量以杂交粳稻类平均产量最高,分别较常规粳稻类和杂交籼稻类平均增产8.43%和9.00%,常规粳稻类和杂交籼稻类平均产量差异较小,常规粳稻类较杂交籼稻类平均增产0.53%,从产量结构来看,钵苗机插更有利于大穗型水稻品种产量优势的发挥。

The test of comprehensive productivity on mechanized transplanting with rice pot-mat seedling was made on 25 conventional Japonica rice, indica hybrid rice and japonica hybrid rice. The result indicated that seedling quality of indica hybrid rice was better than japonica hybrid rice＇s, and japonica hybrid rice＇s was better than conventional japonica rice＇s, the finally ear numbers of conventional japonica rice was highest, next was indica hybrid rice, and the lowest finally ear numbers was japonica hybrid rice. The ratio of spikes to tillers of japonica hybrid rice was highest, next was conventional Japonica rice, and the lowest ratio of spikes to tillers was on indica hybrid rice. The economic output of japonica hybrid rice was highest, which was increase yield than conventional japonica rice and indica hybrid rice by 8.43% and 9.00%, there was less difference on average output between conventional japonica rice and indica hybrid rice, and conventional japonica flee could increase yield by 0.53% than indica hybrid rice. Mechanized transplanting with rice pot-mat seedling was more conducive to exert its advantages of yield on large panicle type from yield structure.