自杂交水稻问世以来,为确保花期相遇良好,常采用两、三期父本。在制种技术已成熟的今天,两、三期父本就显得花期拉得过长,花粉浪费太多,不利于制种产量的进一步提高。1986年,我们提出一期父本制种的设想。经过试验,示范和推广,四年来一致反映效果很好。它不仅简化了制种程序,节省了劳力、投资,而且花期相遇更好。同时增加了花粉密度,提高了结实率,减少了稻粒黑粉病,显著地增加了制种产量,已成为我县夺取制种丰产的一项优质高产低耗措施。 Since the advent of hybrid rice, in order to ensure good flowering meet, often use two or three period of the male parent. In the seed production technology has matured today, the two or three of the paternity appears too puffed too long, pollen waste too much, is not conducive to further improve seed production. In 1986, we proposed the idea of ​​a paternity planter. After testing, demonstration and promotion, four years have consistently shown good results. It not only simplifies the seed production process, saving labor, investment, and flowering meet better. At the same time, the pollen density is increased, the seed setting rate is increased, the powdery mildew of rice grains is reduced, the seed production is remarkably increased, and a high-quality, high-yield, low-consumption measure for seizing high yield of seed production has been established in our county.