CAJ | 학술논문

通过3a的观察和制种实践,总结了"岳优108"亲本的特征特性及其高产制种技术.制种成败的关键在于把握好播种期,在湘北丘陵地区"岳优108"父母本最为适宜的播差期为:母本"岳4A"在3月29日播种,父本"岳恢108"在4月10日播种,(一般以母本播后11～13d、叶龄2.5～2.7叶时播种父本为宜).同时要培育多蘖壮秧,适时移栽;合理密植,促进双亲群体结构协调发展;加强肥水管理,创建高产群体结构;科学喷施"九二0",提高异交结实率;严格"去杂去劣",确保种子质量;加强病虫防治等,确保丰产丰收.
통과3a적관찰화제충실천,총결료"악우108"친본적특정특성급기고산제충기술.제충성패적관건재우파악호파충기,재상북구릉지구"악우108"부모본최위괄의적파차기위:모본"악4A"재3월29일파충,부본"악회108"재4월10일파충,(일반이모본파후11～13d、협령2.5～2.7협시파충부본위의).동시요배육다얼장앙,괄시이재;합리밀식,촉진쌍친군체결구협조발전;가강비수관리,창건고산군체결구;과학분시"구이0",제고이교결실솔;엄격"거잡거렬",학보충자질량;가강병충방치등,학보봉산봉수.
Though three years observation and seed pmducing practice,the charactem of Yueyou108's parents and its high-yield seed production techniques were summarized.The key of seed production is selecting right sowing period.The optimum sowing gap stage for Yueyou108's parents in hilly area of Northern Hunan was as follows:female parent (Yue4A)sowing at Mar.29th and male parent(Yuehui 108)sowing at Apr.10th,which means male parent should sowing at 11 days to 13 days after sowing female parent and when leaf age was 2.5～2.7 leaves.Meanwhile.in order to guarantee high-yield and abundant harvest,it should transplant at right time to breed multi-tiller seedlings,rational close plant to promote coordinated development of parents'colony structure,enhance management of fertilizer and water to create highyield colony structure,scientifically spray gibberellin to improve outcrossing rate,roguing the weak rigorously to ensure the quality of seeds,and strengthen the control of disease and insect pest.