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植物开花的光周期现象是本世纪二十年代的发现,其后,这一理论得到了进一步的发展。我国科研人员与广大贫下中农相结合,创造性地运用光周期理论进行较大面积的红麻短光照制种试验,为南种北植红麻就地留种闯出了一条新路。1976年山东省主要产麻区22个县共育苗床74.1亩,移栽527亩,绝大部分都获得了饱满种子,小面积高产地块,折合亩产253.4斤。为了把红麻短光照制种搞得更好,现把有关植物光周期的一些基本道理。作一简介,供参考。
The photoperiod of plant flowering is the discovery of the 1920s, and then the theory has been further developed. Our researchers combined with the vast majority of poor peasants and middle peasants to creatively apply the photoperiod theory to large-area kenaf short-lighting experiments to establish a new road for the southern species of northern kenaf. In 1976, 22 counties in 22 major counties in Shandong Province produced a total of 74.1 mu of seedling beds and 527 mu of transplants. Most of them received full-size seeds and small-yield high-yield plots, equivalent to 253.4 kg of mu per mu. In order to make kenaf shorts better, now some of the basic principles about plant photoperiod. For a brief introduction, for reference.