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对经过１５ 年分蘖繁殖的裸粒水稻小穗及颖花的雌雄蕊发育观察发现，从小穗原基起即显示出多花形态性状，颖花中内外稃伸长不钩合。在小孢子发生过程中，许多细胞在减数分裂初期存在穿壁现象。这可能导致染色体数目变化，结构异常，减数分裂不正常，从而产生大小不等的小孢子。这些小孢子在二核或三核花粉时停止发育并解体成为无生活力花粉，导致裸粒水稻败育。此外，雌蕊结构也有多种异常
Observations on the development of spikelets and spikes of naked spikelets and spikelets of naked rice after 15 years of tillering showed that there were many flower-shaped traits from the spikelet primordium, and the elongation of inside and outside spikelets of the spikelets were not hooked. During microsporegenesis, many cells have a transmural phenomenon at the beginning of meiosis. This may lead to changes in the number of chromosomes, structural abnormalities, meiosis is not normal, resulting in different sizes of microspores. These microspores stop developing and disintegrate into inanimate pollen during either binuclear or triconucleus pollen, resulting in abortion of naked-grained rice. In addition, the pistil structure also has a variety of abnormalities