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旅大市农业科学研究所作物室,1972～1973年的冬小麦杂交第二代选种圃,为便于选株分系,实行了单粒点播。通过实践证明,冬小麦具有强大的分蘖力,单粒播的秸棵壮、穗大、穗齐、籽粒饱满、产量高。选种圃杂交第二代于1972年9月26日播种,畦宽4尺,每畦播3行,平均行距为1.3尺、株距3寸,单粒播种,每亩15300株,每亩播量为1.5斤,共播2.93亩,分24个小区。在土壤肥力较高和加强田间管理的条件下,充分发挥了单株的作用,每株平均分蘗25个(包括主茎),最高
Luda Agricultural Research Institute of Crops, 1972-1973 winter wheat hybrid second-generation selection of nurseries, in order to facilitate the selection of strains, the implementation of the single-on-demand. Practice has proved that winter wheat has a strong tillering power, single sowing straw strong, spike, panicle, full grain, high yield. Selection of nursery hybrid second generation on September 26, 1972 sowing, 畦 width of 4 feet, each sowing three lines, the average spacing of 1.3 feet, spacing 3 inches, single sowing, 15300 per acre, sowing per acre 1.5 kg, a total of 2.93 acres of broadcast, 24 sub-district. Under the condition of high soil fertility and strengthening field management, the function of single plant was fully exerted, with an average of 25 tillers per plant (including the main stem)