“东野/栽培稻”杂交后代耐低氧种质的筛选与评价

摘要

将“东野/栽培稻”杂交后代不同品系的种子直接播种在20 cm水深的量筒内,然后分别在15℃和30℃恒温条件下进行处理.结果筛选出在低氧条件下具有萌发整齐度高、受温度变化影响较小和芽鞘伸长能力较强等特点的品系“907676-1”,可供在直播水稻品种的遗传改良中应用.%The different strains seeds of hybrid offspring from " Dongxiang wild rice/cultivated rice" were directly sowed into 20 cm deep water at two different constant temperatures (15 ℃ and 30℃). Finally, we found that under low oxygen condition, "907676 - 1" had high germination uniformity, little influence by temperature changes, and strong bud - sheath elongation ability, therefore it could be used for the genetic improvement of direct - sowing rice.