Ni JundiLi Zheng uo.EFFECT OF FLOODING ON GROWTH OF SOYBEAN SEEDLINGS[J].Soybean Science,2000,19(01):42-48.[doi:10.11861/j.issn.1000-9841.2000.01.0042]
淹水对大豆生长的影响
- Title:
- EFFECT OF FLOODING ON GROWTH OF SOYBEAN SEEDLINGS
- Keywords:
- Soy bean; Flooding; Grow th and dev elopment
- 文献标志码:
- A
- 摘要:
- 研究了两种不同的淹水方式— 苗全被淹没(全淹)和基部淹没(半淹)对大豆苗生长的影响,在全淹下,苗完全停止生长,直至死亡。但是,只要露出顶芽在空气中,苗就不被淹死。大豆苗的耐涝性随苗龄增大而提高。半淹处理明显抑制苗根的生长和降低苗的根冠比,却大大刺激不定根的生长。试验结果还显示,大豆能在长时期半淹条件下生长发育,但其营养器官和结实器官的发育均显著差于对照。淹水对根瘤的生长有抑制作用。
- Abstract:
- Grow th respo nses of so ybean seedlings to w ho le plant flo oding and stembasal f looding w ere studied. The g row th o f soybean seedling s entirely ceased underw hole plant floo ding co ndi tions. How erer, the seedling s co uld co ntinue to g row andw ere no t drow ned as lo ng as terminal buds of soy bean seedling ex po sed to the ai r.Surv ivabi li ty o f seedling s under w hole plant f looding co ndi tio ns increased wi th aging ofseedling s. Treatment of soybean seedlings wi th basal floo ding severely inhibi ted primaryroot g row th of seedlings, decreased the ro ot-shoo t ratio and g rea tly stimulated theg row th of adv entitius ro ot s. The ex perimental result s show n that soybea n plant s couldg row a nd develop under basal flooding conditio n th ro ug ho ut thei r life, but dev elo pmento f thei r vegetativ e a nd reproductiv e o rg an remarka bly reduced as compared to co ntro lplants. The nodule g row th of soybea n plant roo ts w as inhibi ted by f looding.
参考文献/References:
1 汤章城,植物生理与分子生物学,科学出版社,北京, 1998, PP: 747
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