论文部分内容阅读
同其他作物一样,利用杂交优势是大幅度提高油菜产量的重要途径。因而,油菜杂交优势利用研究得到高度的重视,杂交油菜推广应用飞速发展。别的大田作物相比,油菜杂种优势利用有其特点:(1)杂种优势强,增产效果显著,(2)杂种制种技术易于掌握,制种产量高而稳定。(3)繁殖系数高,种子成本低。因此,推广杂交油菜投资少,效益大,有广阔的应用前景。
As with other crops, harnessing the advantages of crossbreeding is an important way to dramatically increase rapeseed production. Therefore, rape hybridization advantage research has received a high degree of attention, the rapid development of hybrid rapeseed application. Compared with other field crops, rape heterosis utilization has its own characteristics: (1) strong heterosis, yield significant effect, (2) hybrid seed production technology easy to master, high seed production and stability. (3) high breeding coefficient, low seed cost. Therefore, the promotion of hybrid rapeseed less investment, great benefit, have broad application prospects.