关键词: Antioxidant capacity Capsicum Fruit quality Growth regulators Vitamin C Yield

Mesh : Capsicum / growth & development drug effects metabolism Plant Growth Regulators / pharmacology Fruit / drug effects growth & development metabolism Gibberellins / pharmacology metabolism Indoleacetic Acids / metabolism pharmacology

来  源:   DOI:10.1038/s41598-024-65855-y   PDF(Pubmed)

Abstract:
Several factors, such as pruning and phytohormones, have demonstrated an influence on both the quantity and quality in the bell pepper. A factorial experiment using a completely randomized design was conducted on the Lumos yellow bell in a greenhouse. Treatments were the fruit pruning (0, 10, and 30%) and foliar application of phytohormones auxin (AUX) and gibberellic acid (GA3) at concentrations of 10 µM AUX, 10 µM GA3, 10 µM AUX + 10 µM GA3+, and 20 µM AUX + 10 µM GA3 along with controls. The plants were sprayed with phytohormones in four growth stages (1: flowering stage when 50% of the flowers were on the plant, 2: fruiting stage when 50% of the fruits were the size of peas, 3: fruit growth stage when 50% of the fruits had reached 50% of their growth, and 4: ripening stage when 50% of the fruits were at color break). The results of the present investigation showed that pruning rate of 30% yielded the highest flesh thickness and vitamin C content, decreased seed count and hastened fruit ripening. The use of GA3 along with AUX has been observed to augment diverse fruit quality characteristics. According to the results, the application of 10% pruning in combination with 20 µM AUX and 10 µM GA3 demonstrated the most significant levels of carotenoids, chlorophyll, and fruit length. The experimental group subjected to the combined treatment of 30% pruning and 10 µM AUX + 10 µM GA3 showed the most noteworthy levels of vitamin C, fruit weight, and fruit thickness. The groups that received the 10 µM GA3 and 20 µM AUX + 10 µM GA3 treatments exhibited the most favorable fruit flavor. According to the research results, the implementation of hormonal treatments 10 µM AUX and 10 µM AUX + 10 µM GA3 in combination with a 30% pruning strategy resulted in the most advantageous yield of bell peppers.
摘要:
几个因素,比如修剪和植物激素,对甜椒的数量和质量都有影响。在温室中的Lumos黄钟上进行了使用完全随机设计的阶乘实验。处理是水果修剪(0,10和30%)和植物激素生长素(AUX)和赤霉素(GA3)的叶面施用浓度为10µMAUX,10µMGA3,10µMAUX+10µMGA3+,和20µMAUX+10µMGA3以及对照。植物在四个生长阶段喷洒植物激素(1:开花期,50%的花在植物上,2:结果阶段,当50%的水果是豌豆的大小,3:果实生长阶段,当50%的果实达到其生长的50%时,和4:成熟阶段,当50%的果实处于颜色断裂时)。目前的调查结果表明,30%的修剪率产生最高的果肉厚度和维生素C含量,种子数量减少,果实成熟加快。已观察到GA3与AUX一起使用可增强多种水果品质特征。根据结果,10%修剪结合20µMAUX和10µMGA3的应用显示了最显著的类胡萝卜素水平,叶绿素,水果的长度。接受30%修剪和10µMAUX+10µMGA3联合治疗的实验组显示出最值得注意的维生素C水平,水果重量,和水果厚度。接受10μMGA3和20μMAUX+10μMGA3处理的组表现出最有利的水果风味。根据研究结果,10µMAUX和10µMAUX+10µMGA3的激素治疗与30%修剪策略的组合实施导致了最有利的甜椒产量。
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