Inhibitor of gibberellin biosynthesis in ornamental peppers

IF 0.7 4区农林科学 Q4 HORTICULTURE

Horticultura Brasileira Pub Date : 2022-01-01 DOI:10.1590/s0102-0536-20220106

Aline Novais Santos Gonçalves, S. Matsumoto, P. Ramos, Paula S Matos, Tâmara M Silva, L. Pereira, Anselmo Eloy S Viana, Carmem LL Brito, S. A. Leite

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引用次数: 1

Abstract

ABSTRACT The objective of this study was to evaluate whether the inhibition of gibberellin biosynthesis affects the morphophysiological traits of potted ornamental Capsicum baccatum and Capsicum annuum growing under shade house conditions. Plants maintained in 2.7 L pots were arranged in a completely randomized design in a 2x4 factorial consisting of two pepper cultivars Chapéu-de-frade (C. baccatum) and Vulcão (C. annuum) and four paclobutrazol (PBZ) concentrations (0, 25, 50, and 75 mg L-1) with four replicates. At 30, 45, and 60 days after treatment, the plants were analyzed, and data were submitted to the analysis of general and regression variance. Gibberellin biosynthesis inhibition affected the morphophysiological and biochemical evaluations. For most evaluated traits, no interaction between factors was observed, suggesting that both pepper cultivars had a similar response to the growth regulator. PBZ-induced inhibition of gibberellin biosynthesis improved plant water status, which enhanced the vigor of potted pepper plants. The dramatic reduction of upper leaves promoted by plant growth regulators compared to basal ones negatively impacted the visual ornamental aspect of Chapéu-de-frade peppers.

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观赏辣椒中赤霉素生物合成抑制剂的研究

摘要本研究的目的是评估赤霉素生物合成的抑制是否会影响在遮荫室条件下生长的盆栽观赏辣椒和辣椒的形态生理特性。以完全随机设计的方式，将保存在2.7L花盆中的植物安排在2x4因子中，该因子由两个辣椒品种Chapéu-de-frade（C.baccatum）和Vulcão（C.annuum）以及四个多效唑（PBZ）浓度（0、25、50和75 mg L-1）组成，共四个重复。在处理后30、45和60天，对植物进行分析，并将数据提交给一般方差和回归方差分析。赤霉素生物合成抑制影响形态生理生化评价。对于大多数评估的性状，没有观察到因素之间的相互作用，这表明两个辣椒品种对生长调节剂的反应相似。PBZ对赤霉素生物合成的抑制改善了植株的水分状况，提高了盆栽辣椒的活力。与基底叶相比，植物生长调节剂促进的上部叶的显著减少对Chapéu-de-frade辣椒的视觉观赏性产生了负面影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Horticultura Brasileira 农林科学-园艺

CiteScore

1.40

自引率

28.60%

发文量

审稿时长

4-8 weeks

期刊介绍： The journal Horticultura Brasileira, a quarterly journal, is the Official Publication of the Sociedade de Olericultura do Brasil. Its abbreviated title is Hortic. bras., and it should be used in bibliographies, footnotes, references and bibliographic strips.