| 土壤质地和水分对红花大金元生长的影响 |
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| 引用本文： | 王玉芳,张明生,彭斯文,贺化祥,阚世超.土壤质地和水分对红花大金元生长的影响[J].贵州大学学报(农业与生物科学版),2009,28(3). |
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| 作者姓名： | 王玉芳 张明生 彭斯文 贺化祥 阚世超 |
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| 作者单位： | 1. 贵州大学,生命科学学院,贵州,贵阳,550025
2. 贵州大学,农学院,贵州,贵阳,550025 |
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| 基金项目： | 贵州省毕节地区烟草公司项目，贵州大学实践教学改革研究建设项目资助 |
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| 摘 要： | 通过盆栽试验,研究不同土质与水分条件对烤烟品种红花大金元的形态、根系活力、硝酸还原酶活性等指标的影响.结果表明,土质和水分对红花大金元生长的影响差异均达到显著水平.3种栽培土质对该品种的适宜顺序为壤土>沙土>黏土;同种土质内,烟株的株高、茎围和叶数与土壤含水量的相关性不明显,根系活力、硝酸还原酶活性与土壤含水量呈二次曲线关系.不同生育时期不同土质的土壤适宜相对含水量分别为,伸根期:壤土60%～63%、沙土67%～69%、黏土60%～61%;旺长期:壤土79%～80%,沙土83%～85%,黏土73%～75%;成熟期:壤土74%～76%,沙土77%～78%,黏土71%～72%.
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| 关 键 词： | 红花大金元 土壤质地 水分 形态指标 根系活力 硝酸还原酶活性 |
Effect of Soil Texture and Water Content on Growth of Hongda |
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| WANG Yu-fang,ZHANG Ming-sheng,PENG Si-wen,HE Hua-xiang,KAN Shi-chao.Effect of Soil Texture and Water Content on Growth of Hongda[J].Journal of Mountain Agriculture & Biology,2009,28(3). |
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| Authors: | WANG Yu-fang ZHANG Ming-sheng PENG Si-wen HE Hua-xiang KAN Shi-chao |
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| Institution: | 1.College of Life Sciences;Guizhou University;Guiyang 550025;China;2.College of Agronomy;China |
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| Abstract: | Some morphological indices,root activity,and nitrate reductase(NR) activity of Hongda(a tobacco variety) leaf under the different soil types and water contents were investigated via the pot test.The result showed that the effects of soil texture and water contents on the plant growth was significant.The effect order was loamy soil > sandy soil > clay soil.The correlation between some morphological parameter,including plant height,stem perimeter and leaf number,and soil water contents was not significant.A q... |
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| Keywords: | Hongda Soil texture Water content Morphological parameter Root vitality Nitrate reductase activity |
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