【摘要】 于1962—1964年,在6个点进行大豆品种生态试验。大豆品种生育期从南到北有明显延长的趋势,不同成熟期品种略有差异,极早熟品种对光温生态条件不敏感。在温度、光照等外界条件能满足其生长要求时,在不同地区的生育日数不依地区的积温和纬度而转移。早熟品种较为敏感。各试验点历年平均积温对早熟品种生育期高度负相关。中熟及中晚熟品种只能在本省中部及中南部地区达正常成熟,在熟期方面有明显的界线。 各试验点生育期间(5—9月)的月平均气温,对早熟品种生育期变化呈高度负相关。从南到北生育期间月平均气温每减低1℃,大豆生育期延长4.05天。更多还原

【Abstract】 During 1962-1964, an ecological test of soybean varieties was carried out at Anda, Jiamusi, Keshaa, Qiqihar, Heihe and Harbin. . The results showed that there was a treading to lengthen the growing period of soybean varieties from south to north in Heilongjingg, but there was some difference among varieties with different maturity. The extreme early maturing varieties were not sensitive to day length and tcmperature, When the conditions of day length and temperature were suitable for their growing, the growing days of varieties were independent of total effective temperature and latitude ia different places. The early maturing varieties were more sensitive to them. The coefficient of correlation between growing period of the 8 early maturing varieties and annual average effective cumulative temperature in all of test places was -0.9625. It was significant. Middle and middle-late maturing varieties can only mature in middle and south-middle of Heilongjiang Province.The coefficient of correlation between average air temperature during May to Sep. and soybean growing period was -0.9809 and was significant. From south to north, in growing stages of soybeans, if the monthly averagc air temperature 01 reduces l℃, the growing period will increase 4.05 days.The coefficient of correlation between oil content of seeds and latitude was -0.8267. It was a sigifieant negative correlation.更多还原