论文部分内容阅读
研究群体结构的目的是为了创造一个较好的条件,使群体与个体协调,既有足够的穗数,又能使个体发育良好,达到穗多穗大、粒多粒饱的目的,以充分发挥本品种的最大增产效能。为此,要获得一个合理的群体结构,就必须了解品种个体特性,了解群体的发展规律和它的调节及控制性能。下面仅就1975年墨卡品种的密度试验结果,对墨卡品种丰产群体结构的指标,它的形成发展规律,以及获得丰产群体的措施作一初步探讨。
The purpose of studying the group structure is to create a better condition for the coordination of the group and the individual with sufficient number of spikes and well-developed individuals to achieve the purpose of spike, spike, and grain, and give full play to The varieties of the largest production efficiency. Therefore, in order to obtain a reasonable group structure, it is necessary to understand the individual characteristics of breeds, to understand the law of development of the group and its regulation and control performance. The following only on the density test results of the 1975 Mercat varieties, the indicators of high yield population structure of the Mercat species, its formation and development of law, as well as measures to obtain high yield population for a preliminary study.