Leaf position for diagnosis 诊断叶位
leaf age and leaf position 叶龄和叶位
The size of mesophyll cells became smaller with leaf position, but the tendency of the changes of the height of mesophyll cells was slightly different between the two varieties.
叶肉细胞随叶位升高逐渐变小，但品种间叶肉细胞高度的变化趋势却有不同。
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The distribution of mineral nutrient elements was different in different leaf position, main leaf veins and soft leaves.
各种矿质元素在不同叶位以及同叶位的中肋和软叶中的分配均有所不同。
The leaf photosynthetic rate (Pn)of red wine grape varieties increased with raised leaf position in berry ripening period.
在葡萄浆果成熟期，干红酒用葡萄品种果枝主梢叶片的净光合速率随着叶片着生节位的升高而增加；
The diurnal and seasonal changes of water relationships in soybean plants were measured and analyzed in 1986-1987 in relation to sowing time, leaf position and varieties.
1987年测定了大豆植株水分状况的日变化和季节变化，分析了其基本特点，并比较了不同播期、不同叶位和不同耐旱性品种对它们的影响。
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