| 大豆断根发根的解剖学研究 |
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| 引用本文： | 桂明珠,马和平.大豆断根发根的解剖学研究[J].大豆科学,1989,8(4):345-350. |
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| 作者姓名： | 桂明珠 马和平 |
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| 作者单位： | 东北农学院
(桂明珠，马和平)，东北农学院(张福顺) |
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| 摘 要： | 通过大豆断根处理后发根的解剖学观察,结果表明:大豆根的初生木质部为4原型,侧根发生于对着木质束的中柱鞘细胞;根茎转位区侧生根发生部位和过程与侧根相似;茎的不定根由射线薄壁细胞分化而成。断根处理与对照发根规律基本一致,不同断根处理根系形成有明显差异,适宜的断根处理可改善根系生长状态与吸收条件。
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| 关 键 词： | 大豆 断根 发根 解剖学 |
A ANATOMIC STUDY ON CUT AND DEVELOPING ROOT OF SOYBEAN |
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| Gui Mingzhu Ma Heping Zhang Fushun.A ANATOMIC STUDY ON CUT AND DEVELOPING ROOT OF SOYBEAN[J].Soybean Science,1989,8(4):345-350. |
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| Authors: | Gui Mingzhu Ma Heping Zhang Fushun |
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| Institution: | Northeast Agricultural Collage |
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| Abstract: | Cut and developing root of soybean was observed for anatomic study. The results showed that the primary xylem of root was te-trarch. The lateral root developed in pericycle cell towards woody bundle of primary xylem. In region and process the lateral root developed in root-stem transition region was similar to the lateral root developed in main root. The adv entitious root of stem differenciated from ray parenchyma cell. There were no difference between treatment and CK in anatomy, but obvious difference was observed in morphology. Root state in soil was changed by treatment of root cutting. The surface-area and weight of the soybean roots was increased. The lateral root changed thicker and the root-system distributed shallower in the soil. Therefor, more soil nutritions can be absorbed in 0 -30 cm of the plough layer. |
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| Keywords: | Soybean Cutting root Developing root Anatomic |
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