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通过设置不同的间作行距(30、40、50cm)和根系分隔处理,研究间作花生对木薯叶片的碳氮代谢产物及相关酶活性的影响。结果表明,40cm行距间作花生可提高木薯的蔗糖磷酸合成酶(SPS)、蔗糖合成酶(SS)活性及可溶性糖含量;间作花生后,木薯的氨基酸和可溶性蛋白质含量随着行距变窄而降低;相反,硝酸还原酶(NR)活性则显著增强。相同行距处理下,无根隔处理的氨基酸、蛋白质含量及SPS、SS、谷氨酰胺合成酶(GS)活性均高于根隔处理,说明木薯和花生的根系之间存在一定的相互作用。总体而言,适宜的间作行距可以提高碳氮代谢酶活性,从而促进碳水化合物和蛋白质的积累与运转,对提高木薯的产量和品质具有重要意义。
The effects of intercropping peanut on carbon and nitrogen metabolites and related enzyme activities in cassava leaves were studied by setting different spacing (30, 40, 50 cm) and root separation. The results showed that the peanut at 40cm row spacing could improve the activities of sucrose phosphate synthase (SPS) and sucrose synthase (SS) and soluble sugar in cassava; the contents of amino acids and soluble protein in cassava decreased with the spacing narrowed after intercropping peanut; In contrast, nitrate reductase (NR) activity was significantly enhanced. Under the same row spacing, the contents of amino acids, protein and SPS, SS and glutamine synthetase activities of root-free treatments were higher than those of root-root treatments, indicating that there was some interaction between root systems of cassava and peanut. Overall, the appropriate intercrop spacing can increase the activity of carbon and nitrogen metabolism enzymes, thereby promoting the accumulation and operation of carbohydrates and proteins, and is of great significance for improving the yield and quality of cassava.