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浙江农业大学沈惠聪等人在研究影响油菜籽含油量变异的因素时,得出:11年的资料表明各地年度间平均含油量相差3～5%左右.凡含油量较高的年份都有日照较多、降水量较少,温度较适宜等气侯特征。作者将含量与纬度进行相关与回归分析,相关系数为0.9335,达极显著水平。在本试验的纬度范围内,自南而北,地理纬度每增加一度,含油量增加0.4432%。对各生育期诸气象因子与气象变异含油量进行逐步回归分析,表明抽苔期的日平均气温(6.27～8.91℃)和种子形成期降水量(1.64～5.33mm/d.)与含油量呈负相关;种子形成期的日平均温压、≥3℃有
When studying the factors influencing the variation of oil content of rapeseed, Shen Huicong and others from Zhejiang Agricultural University concluded that the data of 11 years show that the annual average oil content in different regions varies by 3 to 5% .All those with higher oil content have more sunshine More precipitation less, the temperature is more suitable for climate characteristics. The author correlates and regresses the content and latitude with a correlation coefficient of 0.9335, reaching a significant level. Within the latitude range of this experiment, the oil content increased by 0.4432% for each additional degree of latitude from south to north. The stepwise regression analysis of the meteorological factors and the meteorological variation of oil content during each growth stage showed that the average daily temperature (6.27-8.91 ℃) and precipitation (1.64-5.33mm / d.) And the oil content in the seed formation stage Negative correlation; average daily temperature during seed formation, ≥3 ℃ there