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种子是农业生产上重要的生产资料,它的质量直接影响作物的收成,在同样的品种、肥、水和栽培管理条件下,播种质量优良的种子就可获得较高的产量,其增产的幅度一般比采用其他的措施要大,所以选用优良种子是提高作物产量最经济、有效的方法。研究由不同成熟度的种子培育出的植株的生长和发育的关系,对蔬菜作物种子繁育工作的发展,特别在生长期较短和气候条件较差的地区,具有特殊的意义。作者1957—1959年在莫斯科季米里亚捷夫农学院蔬菜试验站进行了连续三年的试验,试验材料是萨克撒四季萝卜,在乳熟、腊熟、完熟三个不同时期各采取种株的第二次分枝上的角果分为两个处理:一半采下后立即将种子剥出风干,另一半则使种子留在角果中后熟、干燥后再剥出。在研究不同后熟方法对种子质量的影响方面,从腊熟期开始,将第二分枝上的枝条,分为整个植株、部分结果枝及从割下部分结果枝上剥出种子(以此为对照),三种不同的后熟处理方法。试验得到如下的结果:
Seeds are an important means of production in agricultural production, and their quality directly affects the crop yield. Seeding high quality seeds under the same conditions of variety, fertilizer, water and cultivation can yield higher yields Generally larger than other measures, the use of good seeds is the most economical and effective way to increase crop yields. Studying the relationship between the growth and development of plants cultivated by seeds of different maturity is of particular significance for the development of vegetable crop seed breeding, especially in the areas with short growth period and poor climatic conditions. The author conducted a three-year experiment at the Vegetable Experimental Station of the Jekyll’s Agriaffa Academy in Moscow from 1957 to 1959. The test material was radish in the four seasons of Saqsa, and was taken at three different stages: milk ripening, wax ripening and ripening The second branch on the angle of the fruit is divided into two treatments: half of the seed immediately after stripping the seed to dry, the other half of the seed is left in the pod ripe, dried and then stripped. In studying the effect of different post-ripening methods on seed quality, starting from the ripening stage, the branches on the second branch were divided into whole plants, partial fruiting branches, and peeled off the seeds from the cutted partial fruiting branch As a control), three different post-maturation methods. The test results are as follows: