viable seed meaning in Chinese

可育性种子

Only a few forest tree species can develop viable seed from unpollinated ovules .
只有少数林木可以从未授粉的胚珠发育成有活力的种子。
Since that time an effort has been made to catalog the characteristics of each introduction and maintain viable seed .
从那时以后，对编录每个引入材料的特性和保持有生活力的种子作了一定努力。
The cross made , the hybridizer then waits as the newly fertilized ovules develop into viable seeds . or not . the majority of attempted crosses fail
做好交配后，育种者于是开始等待新受精的子房发育，产生可育的种子，或是一无所获。大多数情况下杂交的尝试会失败。