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本文对助壮素整枝增产的原因进行了初步分析,其原因可归纳为三个方面。(一)光合作用增强(1)叶面积增大,功能叶四叶比对照宽1—1.5cm,叶色加深(+0.6-1.0级),(2)叶绿素含量增加(+0.11-0.25mg/克、鲜重)。(3)经~(32)P测定,中、下部果枝放射性强度显著高于对照(+1022.67-2461.83脉冲数/分/100mg干重)。(二)调节营养分配,花器官比较发达喷药后半个月内花中可溶性糖比对照高0.154—0.21%,处理棉株的花比对照大,雄蕊的花丝特别发达,包住柱头,有利于授粉结桃。(三)控制营养生长,使光合产物的分配有利于生殖生长,促使早座桃(伏桃比对照多0.38—3.58个/株)多座桃(三桃总数比对照多0.38—0.71个/株),增桃重(单钤重增0.056—0.987克/斤,平均增0.3315克/斤)所以绝大多数处理都增产,增产幅度1.7—23.3%,少数处理因浓度偏高而减产。(四)利用顶端优势,控制侧芽生长,所以不需人工整枝,节省劳力(每亩节省3—5个人工)。本文从喷药时间,浓度和喷药后的田间管理等三个方面对如何使用好助壮素,进行了初步总结和讨论。
This paper conducted a preliminary analysis of the reasons for the increased production of mepiquat pruning, which can be summarized into three aspects. (1) Enhanced photosynthesis (1) Increased leaf area with four leaf functional leaves 1-1.5 cm wide, darker leaf color (+ 0.6-1.0), (2) increased chlorophyll content (+ 0.11-0.25 mg / G, fresh weight). (3) The radioactive intensity of middle and lower fruiting branches was significantly higher than that of the control (+ 1022.67-2461.83 pulses / min / 100mg dry weight) measured by ~ (32) P. (B) to adjust the distribution of nutrients, floral organs developed more developed within half a month after spraying the soluble sugar in the flowers 0.154-0.21% higher than the control, the treatment of cotton plants larger than the control, the stamens of the filaments particularly well developed, Conducive to pollination fruiting. (C) control of vegetative growth, so that the allocation of photosynthetic products conducive to reproductive growth, prompting early peach (Vase more than the control 0.38-3.58 / plant) peach (the total number of three peach 0.38-0.71 more than the control / plant ), Increase peach weight (single 钤 weight 0.056-0.987 g / kg, an average increase of 0.3315 g / kg) so the vast majority of treatments have increased production, increase of 1.7-23.3%, a small number of processing due to high concentrations and yield. (D) the use of the top edge, control the growth of lateral buds, so without artificial pruning, saving labor (3-5 acre savings). This article from the spraying time, concentration and field management after spraying three aspects on how to use a good Zhuang Su, conducted a preliminary summary and discussion.