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首页> 外文期刊>日本作物學會紀事 >Physiological and Ecological Studies on Barnyard Grass (Echinochloa crus-galli Beauv. var. oryzicola Ohwi) : VI. On the elongation of plumule through soils after germination.
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Physiological and Ecological Studies on Barnyard Grass (Echinochloa crus-galli Beauv. var. oryzicola Ohwi) : VI. On the elongation of plumule through soils after germination.

机译：稗草的生理生态学研究（Echinochloa Crus-Galli Beauv。oryzicola Ohwi）：VI。在萌发后通过土壤伸长脉冲。

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摘要

The present report deals with the elongation of plumule through soils after germination. 1) The maximum elongation length of plumule was about 10 cm in a dark germinator. Relation between temperature and the elongation of plumule in a dark germinator was similar at the germination. However, minimum temperature in the elongation of plumule was slightly lower than at germination. 2) Elongation of plumule was inhibited under the low oxygen tension (below 5 per cent), especially in nitrogen gas, plumule stopped to elongate at 0.5 to 3 cm, and seedling died prematurely. 3) Elongation length of plumule in the submerged soils differed from Eh value of the soil. The maximum elongation length of plumule in the submerged soils with below 300 mV of Eh6 were about 2 cm long. 4) In the storaged seeds in the submerged soil for 8 years, the plumule of about a quater of germinated seeds elongated abnormally. Moreover, even normal plumules were below about 40 per cent in length compared with storaged seeds in the submerged soil for a year. 5) As the results of these findings, it was clarified that effects of environmental factors on the elongation of plumule through soils after the germination are the same in the case of germination. Accordingly, emergence rate of germinated seeds was the highest in the optimum soil condition for germination.
机译：本报告涉及萌发后通过土壤伸长脉冲。 1）在深色发芽剂中，脉冲的最大伸长长度约为10cm。在萌发中，温度与髓鞘伸长之间的关系在萌发中相似。然而，垂涎的伸长的最小温度略低于萌芽。 2）在低氧张力（低于5％）下脉冲伸长率（低于5％），特别是在氮气中，垂直于0.5至3cm的垂涎，幼苗过早死亡。 3）浸没的土壤中髓鞘的伸长长度与土壤的欧元值不同。浸没在300mV的浸没物体中的垂褶的最大伸长长度为约2厘米。 4）在淹没的土壤中的储物中8年，垂直于发芽种子的Quate one异常。此外，与淹没的土壤中的储物种子相比，即使是正常纲的含量低于约40％的长度为一年。 5）作为这些发现的结果，澄清了环境因素在萌发后萌发后通过土壤伸长脉冲的影响。因此，发芽种子的出苗率在发芽的最佳土壤条件下是最高的。

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