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由于许多农作物的产量已经接近了它们可能增产的限度,因此,、人们对限制产量的原因正在进行着愈益广泛而深入的研究。有充分的根据表明,如果提高植株的光合作用的活动,将有助于增加它们的产量。所以,目前大家都极为注重研究光合作用的过程,以及在大由条件下影响光合作用效率的一些因素。按照伊格尔兹(?)的看法,在研究光合作用活动时,为取得必要的可靠又可比较的数据,首先必须把生物学产量(干物质的总重)与经济产量(有重要经济价值部分的重
As the production of many crops is approaching the limit of their potential for increased production, there is an increasing and in-depth study of the reasons for the limited production. There is ample justification to show that increasing the photosynthesis of plants will help increase their yields. Therefore, at present everyone pays great attention to studying the process of photosynthesis and some factors that affect the efficiency of photosynthesis under the conditions of large scale. According to Eagleton (?), In order to obtain the reliable and comparable data necessary for the study of photosynthetic activities, it is first necessary to compare the biological yield (the total dry matter weight) with the economic output (which has important economic value Part of the weight