二半山常规籼稻区种植早熟杂交稻初探

Study on Plant of the Precocious Hybridize Rice at Two Half Mountain Normal Regulations

为加速我县二半山水稻品种的更新换代,种子站近年来积极引进适合我县二半山常规籼稻区新品种,但由于在新的市场机制下,可供引进的常规水稻新品种越来越少,即使筛选出一个新品种,在生产中的使用年限也只3～5年,品种更新速度已成为生产中最突出的问题,针对我县海拔1450-1700m二半山区水稻品种更新换代,种子站于2003年引进早熟杂交稻试验成功,改变了我县高二半山区不能种植杂交稻的历史。2004年示范20余亩,平均亩产达到了469.7公斤,较对照增长13.7％。

For the renewal that acceleration my county two half mountain paddy rice the species change the on behalf, seed to stand usher new species in recent years in to suit me fine the county of District of two half mountain at normal regulations, but because of under the new market mechanism, the new species of normal regulations paddy rice that can be provided to usher in is less and less, even the select a new species, in the production of use that time limit too only 3 -5 years, species renew the speed to have become to produce the inside the most outstanding problem. Aim at paddy rice the species renew to change the on behalf on my county the elevation 1450 - 1700 m two half mountain District, in the 2003, seed to stand usher in the precocious to hand over the to experiment success, changing history of can＇ t plant hybridize rice the my county on high two half mountain Districts. In 2004 , demonstrates 20 Acre, come to a 469. 7 kilogram, than check against to increase 13.7%.