论文部分内容阅读
1)扬州沙豆、岔路口两个品种的花荚脱落盛期是从开花盛期至开花末期,即由8月中下旬脱落最为严重,其中落花最多,落荚较少(见表3)。花荚脱落的持续时间较长,一般的要一个多月左右。2)脱落与花荚着生的部位有一定的关系。据观察结果,扬州沙豆(无限结荚习性)上部各节的花荚较下部各节易于脱落,岔路口(有限结荚习性)则相反。3)据40株(盆栽大田)观察结果,扬州沙豆、岔路口雨个品种的花荚脱落均相当严重。脱落率一般在50%左右,最高达80%以上(见表3)。指出了脱落率(包括花荚)与产量呈显著的负相关,即脱落率高,产量低。因此减少脱落是争取大豆丰收的途径之一。4)根据对20株(两品种各占一半)观察的结果,发现了扬州沙豆、岔路口两个品种的落花是顺序发生的,与开花的顺序性是一致的。5)根据我们对呼吸强度测定的结果可以看出:呼吸强度与花荚的脱落有着密切的关系,即呼吸强度与花荚的脱落成反比。
1) The flowering stage of flower pods of the two varieties of sand bean and fork in Yangzhou falls off from the flowering stage to the flowering stage, that is, the shedding is most serious in the middle and late August, of which the most falling flowers and the falling pods are less (Table 3). Flower pods fall off longer duration, generally more than a month or so. 2) shedding and the parts of flower pods have a certain relationship. According to the observation results, the flower pods of the upper part of Yangzhou bean (unlimited pod habit) are easier to fall off than the lower part, and the fork (limited pod habit) is opposite. 3) According to the observation results of 40 plants (potted field), the flower pods shed in the varieties of ravines and fork in Yangzhou were quite serious. Exfoliation rate is generally about 50%, up to 80% or more (see Table 3). It is pointed out that there is a significant negative correlation between shedding rate (including flowering pods) and yield, that is, high shedding rate and low yield. Therefore, reducing shedding is one of the ways to win the soybean harvest. 4) According to the results of the observation of 20 strains (half of each of the two cultivars), it was found that the flowering of two varieties of sand bean and fork in Yangzhou occurred in sequence and was consistent with the order of flowering. 5) According to the results of our determination of respiration, we can see that there is a close relationship between respiration rate and shedding of flower pods, that is, the respiration rate is inversely proportional to the shedding of flower pods.