| 地膜覆盖栽培番茄根系的研究 |
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| 引用本文： | 史芝文,李盛萱.地膜覆盖栽培番茄根系的研究[J].东北农业大学学报,1987(3). |
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| 作者姓名： | 史芝文 李盛萱 |
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| 作者单位： | 东北农学院植物生理教研室，东北农学院蔬菜育种教研室 |
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| 摘 要： | 本文通过地膜覆盖栽培番茹根系生理以及和地上器官相关的研宄,结果表明:地膜覆盖栽培番茄,首先促进了番茄根系的生长发育,如根系发达、侧根多、主根加粗、木质部导管增多,从而增强了根系的生理机能,并加强了根系对水分、养分的吸收和运输能力。根系的呼吸速率增强,导水面积扩大,因此,吸收到作物体内的氮、磷、钾含量增多。结果影响到地上部器官茎、叶的相关生长,使番茄地上部分的叶数多、叶片厚、茎加粗、植株增高等,因此改善了产量生理因素,使光合速率增强,叶面积指数扩大,叶绿素含量提高,经济系数增大,促进了地膜覆盖栽培番茄的早熟和高产。
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| 关 键 词： | 番茄 根系 地膜覆盖技术 |
STUDY ON TOMATO ROOT SYSTEM BY THE USE OF COVERING PLASTIC |
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| Shi Zhiwen Li Shengxuan.STUDY ON TOMATO ROOT SYSTEM BY THE USE OF COVERING PLASTIC[J].Journal of Northeast Agricultural University,1987(3). |
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| Authors: | Shi Zhiwen Li Shengxuan |
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| Institution: | Shi Zhiwen Li Shengxuan |
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| Abstract: | The technique of covering plastic promoted the growth of the tomato rootsystem with bigger main,and lateral roots and more xylem vessels.Physiologi-cal functions and capacity of water and nutrient absorption and transportationwere strenthened.Respiration rate,water introducing area and the content ofnitrogen,phosphorous and potassium were increased.Growth of abovegroundorgans was positively correlated with root development wirh more leaves andthicker stems and taller plants.Physiological factors related to yield got im-proved in the aspects of photosynthetic rate,leaf area index,amount of chloro-phyll and economic coefficient.All this resulted in high-yield and earlymaturation. |
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| Keywords: | tomato root system technique of covering plastic |
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