Biochemical components and dry matter of lemon and mandarin hybrids under salt stress

Revista Brasileira de Engenharia Agricola e Ambiental

Melo, Alberto S. de¹  Sá, Francisco V. da S.²  Moreira, Rômulo C. L.²  Silva, Luderlândio de A.³  Brito, Marcos E. B.³  Figueiredo, Lizaiane C. de³ 

[1] Universidade Estadual da Paraíba, Campina Grande, Brazil;Universidade Federal de Campina Grande, Campina Grande, Brazil;Universidade Federal de Campina Grande, Pombal, Brazil

关键词: Citrus spp.;    salinity;    chlorophyll and carotenoids;    water status.;   

DOI  :  10.1590/1807-1929/agriambi.v21n4p249-253

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

The objective was to study the biochemical changes and dry matter content in lemon and mandarin hybrids under salt stress during rootstock formation. For this, a study was conducted in randomized complete block, using a 2 x 5 factorial scheme, with two salinity levels (0.3 and 4.0 dS m-1) applied in five citrus rootstock genotypes (1. TSKC x CTARG - 019; 2. LRF; 3. TSKC x (LCR x TR) - 040; 4. LCRSTC and 5. LVK), with three replicates and four plants per plot. At 90 days after sowing, saline treatments started to be applied and continued until 120 days after sowing, the moment in which the plants were collected for evaluation of biochemical characteristics and phytomass accumulation. The increase in water salinity negatively affected the biochemical components and dry matter accumulation of citrus genotypes. The genotypes TSKC x (LCR x TR) - 040, LCRSTC and LVK were the least affected by salt stress, standing out as the materials most tolerant to salinity.

【 授权许可】

CC BY