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对2001年全国油用型向日葵杂交种联合区域试验中12个杂交种的子实含油率和籽仁含油率与地理位置关系进行了分析。结果表明:油葵杂交种子实和籽仁含油率与海拔高度存在着明显正相关,相关系数分别为0.7607和0.8228,个别杂交种的直接回归达显著水平;杂交种间与纬度相关不一致,有正相关、负相关,相关系数最大为-0.7177和-0.5767,最小为-0.0754和0.0019。对两因素综合分析比较,海拔高度对含油率的影响比纬度大,二者偏回归系数T检验值分别为2.0534(海拔)>0.8222(纬度)、8.0523 (海拔)>4.4233 (纬度)。
The relationship between the oil content of seed and the oil content of 12 hybrids and the geographical location of the 12 hybrids in the national oil sunflower hybrid regional trials were analyzed in 2001. The results showed that there was a significant positive correlation between the oil content of oilseed hybrids and seed kernels and the altitude, the correlation coefficients were 0.7607 and 0.8228, respectively. The direct regression of individual hybrids reached significant levels. The correlations between latitudes and hybrids were inconsistent, with positive Correlation, negative correlation, the correlation coefficient up to -0.7177 and -0.5767, the minimum -0.0754 and 0.0019. Compared with the two factors, the influence of altitude on oil content is larger than that of latitude. The partial regression coefficients T test of the two indexes are 2.0534 (elevation)> 0.8222 (latitude) and 8.0523 (elevation)> 4.4233 (latitude) respectively.