摘要
采用桶栽试验,选用两个水稻品种,将水稻全生育期划分为插秧至有效分蘖终止期、有效分蘖终止期至幼穗分化始期、幼穗分化始期至减数分裂期、减数分裂期至齐穗期、齐穗期至乳熟期共5个时段,进行不同组合的保水、控水处理试验。结果表明:水稻整个生育期的五个生育时段随着保水时段的增加产量增加。幼穗分化始期至减数分裂期对水分极为敏感,此期保水具有增高、长穗、增粒、提高结实率和千粒重的作用。
Adopt the tub test and select two rice variety, let transplantation to valid tiller end period, valid tiller end period the whole growth season divide into five stage which were to young ear split apart elementary period, young ear split apart elementary period to meiophase, meiophase to orderly spike period, orderly spike period to milk period, then carry on different assemble test about water conservation and water control. The result indicated that yield can increase along with increasing water conservation at five generational periods. Moisture content had the most sensitive to young ear split apart elementary period, at this period it can increase plant height, spike length, number of grains, ripening rate and thousand kerner weight.
出处
《垦殖与稻作》
2005年第6期17-21,共5页
Reclaiming and Rice Cultivation
关键词
水稻
控水
保水
产量性状
rice
water control
water conservation
yield character
