It is suggested that the abnormality of callose wall and short of spro pollenin in the male sterile plant during the genesis and development of the microspore are the main reasons for abortion of microsporangium .
不育株小孢子发生和发育过程中胼胝质的异常和小孢子缺乏孢粉素是引起小孢子囊败育的原因之一。
spro