摘要
为合理安排e型杂交稻播栽期以及防御不利气象条件的影响,通过e型杂交稻的分期播种资料找出对其影响的关键气象要素及阶段,对e型杂交稻新组合不同播种期的主要性状进行分析,并与其对应的气象条件进行相关分析。结果表明,e型杂交早稻对气象条件要求最敏感的时期是始穗前后0~10 d,而e型杂交晚稻对气象条件最敏感的时期则是始穗前0~10 d;e型杂交早稻最适播种期为3月下旬,随着播种时间推迟其产量优势呈下降趋势;e型杂交晚稻e优21在赣南作一季稻栽培具有较好的高产潜力,且最适播种期为4月中旬至5月上旬。
In order to arrange reasonable sowing time for e-type hybrid rice against adverse weather,the relationship between the main traits of several new e-type hybrid rice combinations sowed in different time and the corresponding weather conditions were analyzed.The results showed that the most sensitive period of the e-type hybrid early rice to the weather conditions was 0~10 days after the beginning of spike,while that of the late rice was 0~10 days before the beginning of spike.The optimum sowing time of e-type hybrid early rice was the last ten day of March,with the delay of sowing time,its high yield advantage would weaken."e you 21",a new combination of late rice,cultivated as single-season rice in southern Jiangxi had good yield potential and its optimum sowing time should be the middle ten days of April to early ten days of May.
出处
《湖北农业科学》
北大核心
2012年第8期1532-1535,共4页
Hubei Agricultural Sciences
基金
国家现代农业产业技术体系建设项目(农科教发[2011]3号)
江西省科技厅农业攻关计划重点项目(200110100102)