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农村教育信息化的策略——专访东北师范大学农村教育研究所解月光教授 被引量:2
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作者 赵天书 《信息技术教育》 2004年第5期9-11,共3页
关键词 农村教育 信息化 解月光 东北师范大学 社会资金 信息资源建设 教学模式 “农科教相结合”
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Salt's Effect on Anatomy and Deformity of Pistacia vera Nut
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作者 F. Zarinkamar E. Farjady 《Journal of Agricultural Science and Technology(A)》 2011年第4X期599-607,共9页
This study attempts to examine the effects of salinity on leaf, stem, and nut of Pistacia vera (Ohady and Kaleh Ghochi cultivars) in order to characterize their anatomical structures with electron and light microsco... This study attempts to examine the effects of salinity on leaf, stem, and nut of Pistacia vera (Ohady and Kaleh Ghochi cultivars) in order to characterize their anatomical structures with electron and light microscopy. A comparative study of the anatomy indicates a difference between the density of simple and glandular trichomes in leaf surface, deposit of wax, the thickness of leaf, the length of epidermal cells, palisade parenchyma cells, crystals in mesophyll, and the manner of compatibility to salinity. The results obtained in this research demonstrate that compatibility of Ohady cultivar is higher than Kaleh Ghochi and the degree of mechanical wounding depends on their development stages. In addition to results of previous studies which considered crop load as the main cause of fruit deformity. The present study indicates that, in spite of some reduction in total production of a tree, salinity decreases fruit deformity and to a high extent prevents the production of deformed fruit. Indeed, a remarkable reduction in production of deformed fruit will be yielded by selecting pistachio varieties which are resistant to salinity. Moreover, salinity increases the resistance of nuts to mechanical wounding. The results of this study suggest that in EC = 7.6, 12.6 deformity of nut is not related to crop load. 展开更多
关键词 Pistachio (Pistacia vera L.) SALINITY ANATOMY deformity of nuts mechanical wounding.
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