CAJ | 학술논문

【目的】探讨玉米新品种洛单668的高产制种技术，提高制种产量，降低种子成本及制种风险。[方法】通过试验，研究制种密度、播期、父母本行比、错期等对玉米新品种洛单668制种产量的影响。【结果】洛单668在西北应选择4月中旬左右开播；父母本行比以1：6制种时产量最高；播种错期以父本晚3～5d播种花期相遇最好；播种密度西北地区母本以9万株／hm。左右为宜。【结论]研究结果为玉米新品种洛单668的高产制种提供了参考依据。
【목적】탐토옥미신품충락단668적고산제충기술，제고제충산량，강저충자성본급제충풍험。[방법】통과시험，연구제충밀도、파기、부모본행비、착기등대옥미신품충락단668제충산량적영향。【결과】락단668재서북응선택4월중순좌우개파；부모본행비이1：6제충시산량최고；파충착기이부본만3～5d파충화기상우최호；파충밀도서북지구모본이9만주／hm。좌우위의。【결론]연구결과위옥미신품충락단668적고산제충제공료삼고의거。
[Objective] The aim was to find the high-yielding seed production techniques of new maize variety Luodan 668 to increase the seed yield, decrease seed cost and overcome the risk in seed production.IMethod] Effects of the density of seed production, sowing date, ratio between parental lines and staggering sowing on new maize variety Luodan 668 seed yield were studied though experiments. [Result] The results showed that： Luodan 668 should be sowed in the middle ten days of April, the suitable ratio between parental lines was 1：6, male parent should be sowed 3-5 days later than female parent and the best sowing density was 90 000 stems/hm2 in northwestern of China. [Conclusion] The results provided reference basis for high-yielding seed production of the new maize variety Luodan 668.