论文部分内容阅读
本文自1978~1981年阐述了71个冬小麦品种的产量结构。证明小麦高产育种应在保证足够穗数的前提下注重提高穗重。要提高穗重,应在以增加粒数为主的前提下,粒数和粒重并重,不宜过分强调大粒。要使粒数多,应注重多花多实性的选择。黄淮平原冬麦区和北部冬麦区要选育亩产1200斤以上的品种,每亩穗数以43.2±5.9~48.8±6.1万,穗重以1.61~1.10克以上为宜;粒数粒重分别应以57%和43%的比例同时增加。
In this paper, the production structure of 71 winter wheat cultivars was described from 1978 to 1981. Prove that high-yielding wheat breeding should focus on increasing the panicle weight while ensuring enough spikes. To increase the ear weight, should be based on the premise of increasing the number of grains, grain weight and grain weight should not be too much emphasis on large grain. To make the number of particles, should pay attention to the choice of more substantive. Huanghuai Plain winter wheat and northern winter wheat to breeder yield more than 1200 pounds of varieties per acre to 43.2 ± 5.9 ~ 48.8 ± 6.1 million, ear weight 1.61 to 1.10 grams or more appropriate; grain number tablets The weightings should be increased simultaneously at a rate of 57% and 43% respectively.