早熟矮腰果无性系砧木形成阶段对盐胁迫的耐受性

IF 1.4 4区农林科学 Q3 AGRICULTURAL ENGINEERING

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2020-07-01 DOI:10.1590/1807-1929/agriambi.v24n7p474-481

G. S. Lima, Jailson Batista da Silva, L. D. P. Souza, R. G. Nobre, L. A. A. Soares, H. Gheyi

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引用次数: 5

摘要

摘要本研究旨在评价矮腰果早熟无性系在砧木形成过程中对不同盐度水的耐受性。试验设计由随机分组组成，按5 × 3因子方案排列，对应5个灌溉水电导率水平(0.4;1.2;2.0;2.8和3.6 dS m-1)和3个早熟矮腰果无性系(Faga 11, Embrapa 51, CCP 76)， 3个重复。水体盐度高于0.4 dS - m-1会抑制叶绿素的合成和生长，但会导致腰果幼苗的Dickson品质指数(DQI)高于可接受限度。根据总干质量的相对产量，法加11、Embrapa 51和CCP 76在最高盐度条件下分别为中等敏感、敏感和中等耐受。播后75 d，水盐度与早熟矮腰果无性系叶绿素a含量、叶绿素b含量和DQI存在交互作用。

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Tolerance of precocious dwarf cashew clones to salt stress during rootstock formation stage

ABSTRACT This study was conducted to evaluate the tolerance of precocious dwarf cashew clones to irrigation with waters of different salinity levels during rootstock formation. The experimental design consisted of randomized blocks, arranged in a 5 x 3 factorial scheme, corresponding to five levels of electrical conductivity of irrigation water (0.4; 1.2; 2.0; 2.8 and 3.6 dS m-1) and three clones of precocious dwarf cashew (Faga 11, Embrapa 51, CCP 76), with three replicates. Water salinity above 0.4 dS m-1 inhibited chlorophyll synthesis and growth, but led to cashew seedlings with the Dickson Quality Index (DQI) higher than the acceptable limit. Based on the relative yield of the total dry mass, the clones Faga 11, Embrapa 51 and CCP 76, at the highest salinity level studied, were classified as moderately sensitive, sensitive and moderately tolerant, respectively. There was interaction between water salinity and precocious dwarf cashew clones for chlorophyll a content, chlorophyll b content and DQI at 75 days after sowing.

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来源期刊

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.