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本试验主要探讨了不同浓度的 NaCl,对小麦生长、C~(14)O_2同化强度以及 C~(14)掺入各生化组分中去的影响。试验表明介质盐分对小麦生长具有强烈的抑制效应,其中对干物质积累的抑制效应尤大于对长度生长的抑制效应。同时在盐分影响下,小麦对 C~(14)的同化作用显著降低,C~(14)掺入氨基酸、可溶性糖、有机酸、蛋白质及酯类的绝对量与对照比较时的相对量都因介质盐分的存在而降低。但盐分变化对各组分含量影响的具体进程及其“半量浓度”是不完全相同的。掺入到氨基酸、可溶性糖和有机酸中去的 C~(14)与总的 C~(14)同化量比较时也因盐分的影响而减少。但掺入到酯类和蛋白质中的 C~(14)与总的 C~(14)比较时,其比值受介质盐分的影响甚小,而维持相对稳定的数值。
In this experiment, the effects of different concentrations of NaCl on the growth of wheat, the assimilation intensity of C 14 O 2, and the incorporation of C 14 into various biochemical components were investigated. Tests showed that medium salt had a strong inhibitory effect on the growth of wheat, and the inhibitory effect on dry matter accumulation was more than that on the length growth. At the same time, under the influence of salinity, the assimilation of C ~ (14) in wheat significantly decreased. The relative amount of amino acids, soluble sugars, organic acids, proteins and esters in C ~ (14) The presence of medium salt decreases. However, the effects of salt content on the content of each component and its “half-concentration” are not exactly the same. When compared with the total C 14 assimilation amount, C 14 (14) incorporated into amino acids, soluble sugars and organic acids also decreased due to the influence of salt. However, when compared with the total C14, the ratio of C14 (14) incorporated into the ester and protein was less affected by the medium salt, while maintaining a relatively stable value.