论文部分内容阅读
1选育经过龙粳42原代号龙交071963,是黑龙江省农业科学院佳木斯水稻研究所2002年以早熟、优质、耐冷性强的空育131为母本,抗病、高产的龙盾20-240为父本配制杂交组合,杂交后代用系谱法选育。2002年得到F0种子13粒;2003年在所内种植F1代,淘汰伪杂交种后将表现熟期介于双亲中间、株高适中、抗稻瘟病、抗倒伏,整齐一致的植株全部混合收获;2004年F2代种植2 000个单
1 Breeding Longjing 42 through the original code Longjiao 071963, is the Jiamusi Rice Research Institute of Heilongjiang Academy of Agricultural Sciences in 2002 to early maturity, high quality, cold-resistant Kongyu 131 as the female parent, disease resistance, high yield Long Shield 20-240 Hybrid combinations were made for the male parent, and the offspring of the hybrids were bred by the pedigree method. In 2002, 13 seeds of F0 seeds were obtained. In 2003, F1 plants were planted in this plant. After the elimination of the pseudo-hybrids, the hybrid plants with moderate plant height, blast resistance, lodging resistance and neatness were all mixed and harvested. F2 generation planted 2,000 single