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- Title
果树叶片滞尘对其光合速率和耗水特性的影响.
- Authors
胡梦玲; 阿丽亚·拜都热拉; 刘丽; 张纯曦; 甄敬
- Abstract
【Objective】 In this paper the photosynthetic rate change characteristics and water consumption characteristics under the conditions of leaves with dust and without dust were analyzed. 【Method】 Four fruit trees were selected to measure the washed and unwashed leaves in a continuous time period by LI-6400XTphotosynthesis measuring system. The characteristics of photosynthetic rate and water using efficiency were analyzed. 【Results】 The results showed that the leaf area had the largest amount of dust, followed by Malus domestica (apple) and Armeniaca vulgaris Lam. (apricot), and the Pyrus spp (Korla pear) had the smallest amount of dust retention. The unwashed leaves` photosynthetic rates variated in the following order: Pyrus spp > Juglans regia L. (walnut ) > Malus domestica > Armeniaca vulgaris Lam. The waashed leaves` variated as Pyrus spp > Malus domestica > Juglans regia L.> Armeniaca vulgaris Lam.Water using efficiency of Armeniaca vulgaris Lam,Juglans regia L., Pyrus spp, Malus domestica were significantly different. 【Conclusion 】 Dust retaining had a negative effect on the photosynthesis rate of plants. Dus tretention ability was closely related to its leaf morphology (leaf surface groove, etc.), so plant leaf morphology and structure indirectly affect its` photosynthesis. The cleaned and unwashed ones of the four fruit leaves had different responses to environmental factors, and the leaves responded more sensitive to environmental variations after washing. Correlation analysis showed that the correlations between Pn, Gs, Ci, E and water use efficiency and photosynthetic rate were weaker after leaf cleaning, indicating that water use efficiency and photosynthetic rate were more affected by physiological index factors under dust retention state.
- Publication
Xinjiang Agricultural Sciences, 2019, Vol 56, Issue 11, p2032
- ISSN
1001-4330
- Publication type
Article
- DOI
10.6048/j.issn.1001-4330.2019.11.009