| 土壤水分对苗期烤烟生长发育及光合生理特性的影响 |
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| 引用本文： | 伍贤进.土壤水分对苗期烤烟生长发育及光合生理特性的影响[J].怀化学院学报,1995(2). |
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| 作者姓名： | 伍贤进 |
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| 摘 要： | 烤烟NC82及K326苗期（出苗、十字、生根、成苗）以上被相对持水量分别保持9｛小S、70～80％、60％、60％有利于种子前发．幼苗成活和壮苗的培育．上被水分过多或过少均影响种子前发及幼苗成活和烟苗地上、地下部的协调生长．成苗期烟苗的净光合速率（Pn）以上被相对持水量为60％时最高，水分过多、过少均使Pn下降，光合产物的积累减少．
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| 关 键 词： | 烤烟 苗期 土壤水分 光合作用 |
Effects of Soil moisture on Growth,Development and Photosynthetic Physiological Properties During flue-cured Tobacco seedling Phase |
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| Wu Xianjin.Effects of Soil moisture on Growth,Development and Photosynthetic Physiological Properties During flue-cured Tobacco seedling Phase[J].Journal of Huaihua University,1995(2). |
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| Authors: | Wu Xianjin |
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| Institution: | Dep. of Bio |
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| Abstract: | To flue- cured tobacco varieties Nc82 and K326, During Seedling phas seeds germination, leaf-crossed, roots development, growing up seeding phase, it is beneficial for seedsgerrnination and seedlings survival and culturing strong seedlings to respectively manage the soilmoisture as much as 90%, 70 - 80%, 60%, 60%. Excessive soil rnoisture and drought makeharmful effects for seeds germination, seedling survival and the harmonious growth of stem,leaves and roots. There is highest net photosynthesis rate to manage the soil moisture as 60%,excessive soil moisture and drought make the reduction of net photosynthesis rete and the accumulation of photosynthate during growing up seedling phase. |
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| Keywords: | Flue-cured tobacco Seedling phase soil moisture photosynthesis |
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