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首页> 外文期刊>Revista Brasileira de Fruticultura >Effect of gibberellic acid and the biostimulant stimulate? on the initial growth of tamarind
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Effect of gibberellic acid and the biostimulant stimulate? on the initial growth of tamarind

机译：赤霉素和生物刺激剂的刺激作用？罗望子的初始生长

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Plant growth regulators and biostimulants have been used as an agronomic technique to optimize the production of seedlings in various crops. This study aimed to evaluate the influence of gibberellic acid and the biostimulant Stimulate? on the initial growth of tamarind (Tamarindus indica L.). The experiments were conducted in a nursery with 50% shading, in a randomized block design with five replications and five plants per plot. Thirty eight days after sowing, the leaves were sprayed seven times a day with 0.0 (control), 0.8, 1.6, 2.4 and 3.2 mL of gibberellic acid L-1 aqueous solution and with 0.0 (control), 6.0,12.0, 18.0, and 24.0 mL Stimulate? L-1 aqueous solution. Stem diameter (SD), plant height (PH), longest root length (LRL), shoot dry mass (SDM), root dry mass (RDM) and RDM:SDM ratio were evaluated ninety days after sowing. Variance and regression analysis showed that GA3 at 4% promoted plant growth (height), but had no significant effect on stem diameter, longest root length, shoot and root dry mass and the RDM:SDM ratio. On the other hand, all concentrations of Stimulate? significantly increased plant height and shoot and root dry mass of tamarind seedlings.
机译：植物生长调节剂和生物刺激剂已被用作农艺技术，以优化各种农作物的幼苗产量。这项研究旨在评估赤霉素和生物刺激剂Stimulate？的影响。罗望子（Tamarindus indica L.）的初始生长。实验是在50％阴影的苗圃中进行的，采用随机区组设计，每个样地重复五次，种植五株植物。播种后三十八天，每天以0.0（对照），0.8、1.6、2.4和3.2 mL的赤霉素L-1水溶液以及0.0（对照），6.0、12.0、18.0和1.0喷雾7次。 24.0 mL有刺激性吗？ L-1水溶液。播种九十天后，评估茎直径（SD），株高（PH），最长根长（LRL），枝干质量（SDM），根干质量（RDM）和RDM：SDM比。方差和回归分析表明，GA3 4％促进了植物的生长（高度），但对茎直径，最长根长，枝条和根干质量以及RDM：SDM比没有显着影响。另一方面，所有浓度的刺激？显着增加了罗望子幼苗的株高，茎和根的干重。

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