Varieties that do not produce fertilepollen are used as females.
不产生可育花粉的品种被用作母体。
2
Even under SD conditions, fertilepollen rate of TGMSR was rather low.
在较适宜条件下，这些TGMSR的可育花粉率同样不高。
3
Polynomial regression analysis indicated that the reaction of fertilepollen rates to tetcyclacis concentrations and dates showed a quadratic relationship.