高光效大豆光合特性的研究

来源 :大豆科学 | 被引量 : 0次 | 上传用户:pp084
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我们对高光效大豆(哈79—9440、哈82—7851、哈82—7799)的光合特性进行了研究。结果表明:(1)不同大豆品种(系)间存在着光合单位密度、光合速率、叶绿体DCIP光还原活性和RUBP羧化酶活性的区别。(2)光合速率同RUBP羧化酶活性密切相关。(3)RUBP羧化酶活性同大豆籽粒产量成正相关。因此,估价某品种的光合能力时,除了要考虑光合速率外,对光能的吸收、传递、转换以及光合环的运转效率也应考虑。尤其值得特别注意的是RUBP羧化酶活性。 We studied the photosynthetic characteristics of high-efficiency soybean (Ha 79-9440, Ha 82-7851, Ha 82-7799). The results showed that: (1) The differences of photosynthetic unit density, photosynthetic rate, chloroplast DCIP photoreduction activity and RUBP carboxylase activity existed among different soybean varieties (lines). (2) Photosynthetic rate is closely related to RUBP carboxylase activity. (3) RUBP carboxylase activity positively correlated with soybean grain yield. Therefore, the valuation of a variety of photosynthetic capacity, in addition to consider the photosynthetic rate, the absorption of light energy, transfer, conversion and photosynthetic ring operating efficiency should also be considered. Of particular note is the RUBP carboxylase activity.
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