生物刺激素可缓解半干旱环境下芒果的非生物胁迫

IF 1.4 4区 农林科学 Q3 AGRICULTURAL ENGINEERING
M. A. Silva, Í. Cavalcante, L. E. D. Mudo, V. B. P. Paiva Neto, R. A. Amariz, J. Cunha
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引用次数: 7

摘要

芽成熟阶段是芒果树生长的重要阶段,因为它先于花的诱导,当植物受到高温和低水分胁迫时,可以通过使用植物生物刺激素来减少花的诱导。因此,目前的研究旨在使用一种含有酵母提取物和氨基酸的植物生物刺激素来缓解芒果植物的非生物胁迫,cv。汤米·阿特金斯,生长在半干旱的环境中。试验设计为随机分组,5个处理,5个重复,每个小区5株。处理包括:T1) 2次[生物刺激素+ KCl]叶面喷雾+ 2次K2SO4叶面喷雾;T2)不使用生物刺激素,4次叶面喷施K2SO4;T3)生物刺激素单喷3次,K2SO4单喷1次;T4)生物刺激素叶喷2次,K2SO4叶喷2次;T5) 2次叶面喷雾[生物刺激素+ K2SO4] + 1次叶面喷雾K2SO4。评价变量为:1)叶片可溶性碳水化合物、淀粉、氨基酸和脯氨酸浓度;过氧化氢酶和抗坏血酸过氧化物酶的酶活性。热带半干旱环境下芒果枝成熟期叶面喷施生物刺激素可缓解植物的非生物胁迫。在半干旱环境下,推荐3种叶面生物刺激素喷剂和1种k2so4喷剂缓解芒果植株的非生物胁迫。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Biostimulant alleviates abiotic stress of mango grown in semiarid environment
ABSTRACT The shoot maturation phase is important for growing mango tree because it precedes the floral induction, when plants are under stress caused by high temperatures and low water availability, that could be reduced by using plant biostimulant. Thus, the current study aimed to use a plant biostimulant containing yeast extract and amino acids to alleviate abiotic stress in mango plants, cv. Tommy Atkins, grown in semiarid environment. The experimental design consisted of randomized blocks with five treatments, five repetitions and five plants per plot. Treatments consisted of: T1) two foliar sprays with [biostimulant + KCl] + two foliar sprays with K2SO4; T2) No biostimulant and four foliar sprays with K2SO4; T3) three individual foliar sprays with biostimulant and one foliar spray with K2SO4; T4) two foliar sprays with biostimulant and two foliar sprays with K2SO4; and T5) two foliar sprays with [biostimulant + K2SO4] + one foliar spray with K2SO4. The variables evaluated were: i) leaf concentrations of soluble carbohydrates, starch, amino acids and proline; and ii) enzymatic activity of catalase and ascorbate peroxidase. The foliar spray with biostimulant during the branch maturation phase of mango trees grown in tropical semiarid environment alleviated plant abiotic stress. Three foliar biostimulant sprays and one K2SO4spray are recommended to alleviate mango plant abiotic stress in semiarid environment.
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来源期刊
Revista Brasileira de Engenharia Agricola e Ambiental
Revista Brasileira de Engenharia Agricola e Ambiental Agricultural and Biological Sciences-Agronomy and Crop Science
CiteScore
2.70
自引率
16.70%
发文量
114
审稿时长
3-8 weeks
期刊介绍: A Revista Brasileira de Engenharia Agrícola e Ambiental (Agriambi), periódico oficial da Asociación Latinoamericana y del Caribe de Ingeniería Agrícola (ALIA), é editada mensalmente, no formato eletrônico, pela Unidade Acadêmica de Engenharia Agrícola (UAEA) do Centro de Tecnologia e Recursos Naturais (CTRN) da Universidade Federal de Campina Grande (UFCG), destinando-se à divulgação de artigos científicos originais e inéditos, elaborados em Português, Inglês ou Espanhol. Com o auxílio de pareceres de Consultores, os artigos são aceitos ou não pela Equipe Editorial para publicação na Revista. A Agriambi aceita, também, a submissão de contribuições na modalidade de revisão de literatura.
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