| 摘要: |
| 通过人工遮光与田间试验,论证了光照时数对供试大豆品种从第二片复叶到生理成熟的各发育期都有后效应,即前期光照短可加速其随后发育期之发育,前期光照长则相反。在自然条件下大豆某发育期发育的快慢,就光、温来说,决定于前期光照的后效应与本期光、温等三因子作用方向(促或延)与强度。光照后效应的发现对改进大豆物候期预报与加深对大豆发育规律的认识具有一定意义。 |
| 关键词: 相关系数 发育期 生理成熟 物候期 后效应 大豆生育 延迟发育 前期 光照时数 短光照 |
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| THE AFTER-EFFECT OF LIGHT DURATION ON THE DEVELOPMENT OF SOYBEANS |
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| Abstract: |
| That light duration has some after-effect on the development of the tested soybean varieties at stages from the second tri-foliolate period to physiological maturity has been proved through shading and field experiments from 1981 to 1982.This is to say that short(long)light duration at the former stage may enhance(delay)the development at the following stage.So the development at a certain stage of soybeans may be affected at least by three ligth-temperature factors:after- effect of light duration of the fo... |
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