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The leaf area measuring instrument was used to determine the leaf area, leaf length, leaf width, and leaf shape index of three agronomy apricot varieties in the same habitat. Based on this analysis, the main distribution rules of the leaf area of ​​each ecological group and the relationship between the indicators and leaf area were analyzed. Sex. The correlations between leaf characteristics and leaf area of ​​the three ecological groups were as follows: long breadth> leaf width> leaf length> leaf index. Leaf shape index negatively correlated with leaf area but did not reach significant correlation.
The leaf length, leaf width, length-width product of the Central Asian Ecological Group and the North China Ecological Group showed extremely significant correlation with the leaf area. The correlation between leaf width, breadth and width of the Zhunger-Ili ecological group and leaf area was extremely significant, and the correlation between leaf length and leaf area was significant, but it was not extremely significant. According to the correlation analysis between the leaf area of ​​each ecological group and the characteristics of each leaf in the leaf area measurement instrument, the correlation between the long-width product and the leaf area was the highest. Therefore, the long-width product is selected as the ordinate and the leaf area is the abscissa, and the leaf area of ​​each ecological group is fitted.
At the same time, after the vernier calipers were measured, the length and breadth of leaves of each ecological group were substituted into the regression equation, and the obtained leaf area was compared with the leaf area measured by the leaf area meter. In the range of value, the increase of leaf area will gradually decrease with the increase of long-width product. The leaf area measuring instrument can better describe the variation characteristics of the area of ​​the Central Asia subtropical ecosystem with the long-width product, and at the same time can accurately estimate the leaf area of ​​each species contained in the ecological group.
Some rodenticides are lethal after one exposure while others require more than one. Rodents are disinclined to gorge on an unknown food (perhaps reflecting an adaptation to their inability to vomit), preferring to sample, wait and observe whether it makes them or other rats sick. This phenomenon of poison shyness is the rationale for poisons that kill only after multiple doses.
Using the leaf area meter to study the distribution pattern of these three ecological groups and the rapid determination of the mathematical model of leaf area, we can further understand the distribution of leaf area of ​​apricot cultivars in different ecological groups in Xinjiang, and simplify the calculation of leaf area. The study on leaf area distribution of apricot cultivars in different ecological groups is still rare.