| 摘要: |
| 研究了小麦萌发与生长对300 nm紫外非电离辐射处理的正响应。结果表明,在照射距离为4 cm,照射时间分别为2, 4, 6, 8与10min时,供试材料均表现一定的正响应,发芽势、发芽率、发芽指数与活力指数等都有不同程度的提高。照射距离为4 cm、照射4min时正响应最为显著。非电离辐射促进了吸涨作用与呼吸作用,为剌激萌发与生长奠定了必要的物质与能量基础。 |
| 关键词: 小麦,非电离辐射,种子萌发 |
| DOI： |
| 分类号:S351.59 |
| 基金项目:西北农业大学青年科学专项基金资助项目 |
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| A study of the positive response of the wheat germination and growth with non-ionization radiation treatment |
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| Abstract: |
| The positive response of the germination and seeding growth of Shaan-He
No. 6 wheat to the ultraviolet radiation and its physiological mechanism are studied in
this article.The result shows that when radiation distance is 4 cm and radiation time is
less than 10 minutes, the subject has a significant positive response to the treatment, the
germination rate, germination energy, germination index and activity index of the subject
rises significantly compared with the control.The mechanism is that, firstly, ultraviolet
radiation makes the subjects absorb water more than the control, secondly, it makes the
α-amylase and fumart creductase activity in the seed increase, thus lay an essential
foundation for the speeding of the subjects germination and seeding growth. |
| Key words: wheat,non-ionization radiation,germination |
