DCPTA与CCC复配对寒地春玉米幼苗叶片生理及物质积累的影响

Effects of Mixed Compound of DCPTA and CCC on Leaf Physiological Characteristics and Dry Matter of Spring Maize Seeding in Cold Area

在前期研究基础上,以郑单958为试验材料,在玉米六叶期喷施以DCPTA[2-(3,4-二氯苯氧基)乙基二乙胺]和CCC(氯化氯代胆碱)为主要成分的复配剂,以清水为对照,喷施处理后2、4、6、8、10d进行取样分析测定,以明确新型复配剂对寒地春玉米幼苗叶片生理特性及物质积累的影响。结果表明,复配剂处理后玉米植株株高、叶面积及植株干重均高于对照。同时复配剂处理能提高玉米叶片Chla、Chlb以及Chl(a+b)的含量,降低叶片的相对电导率,增加叶片游离脯氨酸及丙二醛的含量。DCPTA与CCC复配剂显示出了良好的互补作用及复合效应,叶片生理特性的改善以及物质积累的增加为培育健壮玉米幼苗奠定了基础。研究为DCPTA与CCC复配剂用于促进玉米幼苗生长提供了一定的理论依据,同时也为其他活性物质开发提供新的思路。

In the experiment, on the basis of previous studies, two kinds of mixed DCPTA and CCC compound were prepared. By spraying treatment, we studied the effects of mixed compound of DCPTA and CCC on leaf physiological characteristics and dry weight of spring maize seedling in cold area. Zhengdan958 was chosen as the experimental material. After 2,4,6,8,10 days of spraying treatment ,we took leave samples and several analyses were done. The results showed that the stem length, the leaf area and the weight of dry matter were increased significantly. The mixed compound of DCPTA and CCC could increase the content of Chla and Chlb and Chl （ a ＋ b） in leaf. The mixed compound of DCPTA and CCC reduced the relative conductivity of the leaf, slowed down the rate of change of MDA in plant and increased the content of free proline. With the improvement of leaf physiological characteristics and accumulation of dry weight, the resilience of seeding could be improved significantly. The results provide a guid- ing role about the mixed compound of DCPTA and CCC for the growth of maize seeding, at the same time, propose new ideas for the develooment of other active substances.