适宜海南“两稻一菜”耕作制度的水稻育种策略及实践
|
摘要
目前海南稻田的主要耕作制度是"一稻一菜",为保证粮食供给和提高土地利用率,有必要在稻田实施"两稻一菜"耕作模式,但是目前市场上多数水稻品种生育期和成熟期不能满足"两稻一菜"需要。因此,提出生育期应控制在早造125d内,晚造115d内,晚造在10月上旬之前收获,并选育出琼晚籼2号、荣3优663等适宜"两稻一菜"种植的水稻品种进入海南省区试。
The rice-vegetable planting pattern is currently the principal planting system in paddy fields in Hainan Province. To ensure food supply and raise land use efficiency, it is necessary to adopt the rice-rice-vegetable planting pattern in paddy fields. However, the growth duration and ripening stage of most existing rice varieties cannot meet the demands of the rice-rice-vegetable planting pattern in Hainan. Therefore, the breeding strategy for rice varieties was put forward of shortening the growth duration to 125 d for early rice and 115 d for late rice and harvesting late rice before the early ten days in October. According to this strategy, Qiongwanxian 2 and Rong 3 You 663 were successfully developed for the rice-rice-vegetable planting pattern, and they were advanced to be tested in the Rice Variety Regional Trials of Hainan Province.
The rice-vegetable planting pattern is currently the principal planting system in paddy fields in Hainan Province. To ensure food supply and raise land use efficiency, it is necessary to adopt the rice-rice-vegetable planting pattern in paddy fields. However, the growth duration and ripening stage of most existing rice varieties cannot meet the demands of the rice-rice-vegetable planting pattern in Hainan. Therefore, the breeding strategy for rice varieties was put forward of shortening the growth duration to 125 d for early rice and 115 d for late rice and harvesting late rice before the early ten days in October. According to this strategy, Qiongwanxian 2 and Rong 3 You 663 were successfully developed for the rice-rice-vegetable planting pattern, and they were advanced to be tested in the Rice Variety Regional Trials of Hainan Province.
引文
[1]海南省人民政府.海南年鉴[M].海口:海南年鉴社,2000:110.
[2]海南省统计局,国家统计局海南调查总队.海南统计年鉴[M/OL].北京:中国统计出版社,2017[2018-2-20].http://stats.hainan.gov.cn/2017nj/indexch.htm.
[3]唐清杰,严小薇,孟卫东.海南水稻生产现状分析及发展对策[J].杂交水稻,2015,30(1):1-5.
[4]段骅.抽穗灌浆期高温对水稻品质和内源激素的影响[D].扬州:扬州大学,2010.
[2]海南省统计局,国家统计局海南调查总队.海南统计年鉴[M/OL].北京:中国统计出版社,2017[2018-2-20].http://stats.hainan.gov.cn/2017nj/indexch.htm.
[3]唐清杰,严小薇,孟卫东.海南水稻生产现状分析及发展对策[J].杂交水稻,2015,30(1):1-5.
[4]段骅.抽穗灌浆期高温对水稻品质和内源激素的影响[D].扬州:扬州大学,2010.