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1 针对双亲特性确定制种措施1.1 母本叶片紧凑,空间位置小,父本雄穗大空间优势大,横向跨度广适于大比例,高密度种植。1.2 母本雄穗叶柄长,叶片包裹紧,易未出鞘就跑粉且顶部叶片直立遮挡视线,雄穗出蓼和跑粉很难发现,对纯度影响大,应采取带叶雄法。1.3 父本雄穗发达,但分枝少花粉主要集中于主枝及侧枝中下部,花粉量有限,散粉集中,对前后期授粉结实不利,种植
1 for parents to determine the characteristics of seed production measures 1.1 maternal leaves compact, small space, male tassel large space advantage, wide horizontal span suitable for large-scale, high-density planting. 1.2 maternal tassel Petiole long, tightly wrapped leaves, easy to run out of powder and the top of the leaves out of the mask upright obscuration view, tassel out of Polygonum and run powder difficult to find, the purity of the impact should be taken with male leaf method. 1.3 male tassel developed, but fewer branches less pollen mainly in the main branches and collateral in the lower part of the pollen is limited, loose powder concentrated on the adverse effects of early pollination, planting