摘要
以４个不同类型油葵品种为试材，对４个地区、９个气候因素与油葵含油率进行了相关和逐步回归分析。结果表明，对含油率影响最大的是日照时数，呈极显著正相关；其次是积温和气温日较差，均呈极显著正相关；相对湿度、日平均气温、日均最低温度均呈显著负相关。
The relationship between oil content and 9 different climatic factors was anal-ysed in 4 different regions by use of 4 oil sunflower varieties.The results showed that the du-ration of sunshine was the most important factor to affect the oil content.By means of corre-lation and stepwise regression analysis,the duration of sunshine affects the oil content with agreat significant positive correlation,and then,the accumulative temperature,temperaturedifference between day and night with a great significant positive correlation as well. Howev-er,the relative hmidity,mean of temperature,mean of minimum temperature affect the oilcontent with a great significant negative correlation.
出处
《西北农业学报》
CSCD
1996年第1期63-66,共4页
Acta Agriculturae Boreali-occidentalis Sinica
基金
国家自然科学基金
关键词
含油率
气候因素
逐步回归
油用向日葵
Oil content
Climatic factors
Correlation
Stepwise regression
