[目的]筛选出适于丘陵山区直播的水稻品种.[方法]以杂交籼稻、常规籼稻、杂交粳稻和常规粳稻4个类型共14个品种作为试验材料,采用人工直播方式播种,在不同的生育时期对其农艺性状等进行调查,成熟期进行取样考种和测产,并对所得数据进行分析.[结果]杂交籼稻万优66、万优481、杂交粳稻1503、1505和常规粳稻中科8号产量均超过10 500 kg/hm2.其中,万优66最高,达11 274kg/hm2,其次是万优481,为11 134.5 kg/hm2.且农艺性状方面也较适于直播,可作为水稻直播推广使用.[结论]综合考虑,如果是采取人工收获,可优先选用两个籼稻品种万优66、万优481;若采用机械收获,应选用3个粳稻品种中科8号、1505、1503.%[Objective] To screen the rice variety suitable for direct seeding in hilly and mountainous area.[Method] A total of 14 varieties of hybrid indica rice,conventional indica rice,japonica hybrid rice and conventional japonica rice were used as the test materials,artificial direct seeding was adopted to investigated the effects on agronomic characters at different growth periods.Sampling and yield detecting were carried out at mature stages.And data obtained were analyzed.[Result] The yields of hybrid indica rice Wanyou 66,Wanyou481,Japonica hybrid rice 1503,1505,and conventional Japonica rice Zhongke 8 were all more than 10 500 kg/hm2.Among them,yield of Wanyou 66 was the highest,reaching 11 274 kg/hm2,followed by Wanyou 481 (11 134.5 kg/hm2).They were all suitable for direct seeding and could be used for large-scale extension.[Conclusion] Comprehensively,Wanyou 66 and Wanyou 481 could be selected if using artificial harvesting;and Zhongke 8,1505 and 1503 should be selected if using mechanical harvesting.
展开▼
