隔寒增温超早育秧对水稻产量及质量的影响

为了提高水稻产量与品质,以牡丹江27为试材,研究隔寒增温超早育秧对水稻产量及品质的影响。结果表明,隔寒增温超早育秧水稻的产量和碾米品质优于常规育秧。隔寒增温超早育秧群体有效穗数低于常规育苗,但抽穗期较常规育苗的早5d,每穗粒数、结实率和千粒重均高于常规育苗。稻米灌浆充足成熟度好,稻米整精米率提高8.3%,稻米直链淀粉含量升高,胶稠度较常规育苗略有下降,但蛋白质含量低于常规育苗。

Effects of Isolation Cold and Warming for Ultra Early Seedling Nurturing on Yield and Quality of Rice

In order to increase yield and quality of rice, taking Mudanjiang 27 as material,the effects of isolation cold and warming for ultra early seedling nurturing on yield and quality of rice were studied. The results showed that the effects of isolation cold and warming for ultra early seedling nurturing was better than conven- tional growing seedlings on grain yield and milling quality. Effective panicle number of isolation cold and war- ming for ultra early seedling nurturing was less than conventional growing seedlings, but was earlier about 5 days,grains per spike,seed setting rate and 1000-seed weight were higher than conventional growing seedlings. Rice filling sufficient had good maturity and enhanced the head milled rice rate by 8.3 %, the amylose content was increased and gel consistency decreased,but protein content lower than conventional growing seedlings.