The variable number of floral organs was observed in nsr spikelets.
裸粒水稻小穗内的花器官数日也有较大的变异。
Of a specified number not exceeding 20, as certain floral organs, especially stamens.
特定数目不超过二十的，如某些花的器官，尤指雄蕊。
These floral organs are specified by floral homeotic genes, as well as genes which specify the number and symmetry of floral organ.
这些器官的性质由花的“同源异型基因”决定，决定花的器官数和对称性等的基因族也在起作用。
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