论文部分内容阅读
继育成“京丰1号”、“报春”、“秋丰”、“庆丰”之后,我所今年又育成3个新的甘蓝一代杂种—“双金”、“圆春”、“晚丰”。从而使北京地区春甘蓝一代杂种初步实现早、中、晚熟配套,上市时间可延续到7月上旬。一、选育经过“双金”(金早生7202—6×金亩847205—46)为一中早熟一代杂种。1976、1977、1978年3年连续进行组合鉴定,均表现极明显的产量优势。5月下旬至6月上旬收获,亩产分别达到14,116.6、8,694.7、9,715.0斤,比原有中早熟品种“金亩84”增产26.6—153.3％,1978年开始进行制种,1979年在京郊四季青公社、东升公社和我们农场进行多点鉴定,亩产分别达到10,137.6、8,100、10,742.4斤,比金亩84增产27.3—48.3％(图1)
Following the breeding of “Jingfeng 1”, “Primula”, “Qiufeng” and “Qingfeng”, this year we also breed 3 new cabbage F1 hybrids - “double gold”, “spring”, “late” Abundance. “ So that the early generation, middle and late maturing hybrids of spring cabbage F1 hybrids in Beijing can be basically achieved, and the time to market can be extended to early July. First, breeding through the ”double gold“ (golden early 7202-6 × Jinmu 847205-46) as a middle-aged generation of hybrids. 1976, 1977, 1978, three consecutive combination of identification, all showed significant yield advantage. The yield was 14,116.6,8,694.7,9,715.0 kg per mu in late May to early June. The yield was 26.6-153.3% more than that of the original medium-maturing variety ”Jinmu 84". Seed production began in 1978, and in the four seasons in the suburbs of Beijing in 1979 Young commune, Dongsheng commune and our farm for multi-point identification, respectively, per mu yield of 10,137.6,8,100,10,742.4 kg, 84.38.3% more yield than the mu 84 (Figure 1)