Gholampour Abdollah, Hashemabadi Davood, Sedaghathoor Shahram, Kaviani Behzad
J Environ Biol. 2015 Jan;36(1):273-7.
The effect of concentration and application method of chlormequat (cycocel), a plant growth retardant, on plant height and some other traits in Brassica oleracea cultivars 'Kamome White' and 'Nagoya Red' was assessed. Plant growth retardants are commonly applied to limit stem elongation and produce a more compact plant. The experiment was done as a factorial in randomized completely blocks design (RCBD) with four replications. Plants (40 days after transplanting) were sprayed and drenched with 500, 1000 and 1500 mg l(-1) cycocel. In each experiment, control untreated plants. Data were recorded the 60 and 90 days after transplanting. Based on analysis of variance (ANOVA), the effect of different treatments and their interaction on all traits was significant at 0.05 or 0.01 level of probability. Treatment of 1500 mg I(-1) cycocel resulted in about 50 and 20% shorter plants than control plants, 60 and 90 days after transplant. The growth of Brassica oleracea cultivar 'Kamome White' and 'Nagoya Red' decreased with increased cycocel concentration. Foliar sprays of cycocel controlled plant height of both cultivars. Results indicated that the shortest plants (9.94 and 11.59 cm) were those sprayed with 1500 mg l(-1) cycocel in cultivar 'Kamome White' after 60 and 90 days, respectively. The largest number of leaves (33.94) and highest leaf diameter (9.39 cm) occurred in cv. 'Nagoya Red', when drench was used. Maximum dry matter (14.31%) accumulated in cv. 'Nagoya Red', treated with spray.
评估了植物生长延缓剂矮壮素的浓度和施用方法对甘蓝品种‘鸥嘴白’和‘名古屋红’株高及其他一些性状的影响。植物生长延缓剂通常用于限制茎的伸长，使植株更加紧凑。试验采用随机完全区组设计（RCBD）的析因试验，重复4次。对移栽40天后的植株喷施和浇灌500、1000和1500 mg l(-1) 的矮壮素。每次试验均设未处理的对照植株。在移栽后60天和90天记录数据。基于方差分析（ANOVA），不同处理及其交互作用对所有性状的影响在概率水平0.05或0.01时显著。在移栽后60天和90天，1500 mg I(-1) 矮壮素处理的植株比对照植株矮约50%和20%。甘蓝品种‘鸥嘴白’和‘名古屋红’的生长随着矮壮素浓度的增加而降低。喷施矮壮素可控制两个品种的株高。结果表明，在品种‘鸥嘴白’中，喷施1500 mg l(-1) 矮壮素的植株在60天和90天后分别是最矮的（9.94和11.59 cm）。采用浇灌法时，‘名古屋红’品种的叶片数量最多（33.94片），叶片直径最大（9.39 cm）。采用喷施法处理的‘名古屋红’品种积累的干物质最多（14.31%）。
