Initial development of Combretum leprosum Mart. seedlings irrigated with saline water of different cationic natures

Initial development of Combretum leprosum Mart. seedlings irrigated with saline water of different cationic natures

This study aimed to evaluate the tolerance of C. leprosum seedlings to salt stress during the emergence and early seedling development. The experiment was carried out between the months of August and September, in a greenhouse, and the substrate used was the commercial coconut fiber wetted with aque...

Full description

Saved in:
Bibliographic Details
Published in:Ciência agronômica Vol. 50; no. 2; pp. 300 - 306
Main Authors: Leal, Caio César Pereira, Dantas, Nadjamara Bandeira de Lima, Torres, Salvador Barros, Vale, Amsterdam Armênio de Medeiros, Freitas, Rômulo Magno Oliveira de
Format: Journal Article
Language:English
Published: Fortaleza Universidade Federal do Ceará, Centro de Ciências Agrárias 01-01-2019
Universidade Federal do Ceará
Subjects:
AGRONOMY
Aqueous solutions
Calcium
Calcium chloride
Combretaceae
Dry matter
Electrical conductivity
Electrical resistivity
Emergence
Forest seeds
Plant growth
Potassium
Potassium chloride
Saline water
Salinity
Salts
Seedlings
Shoots
Sodium
Sodium chloride
Substrates
Salinidade
Combretaceae
Forest seeds
Sementes florestais
Salinity
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study aimed to evaluate the tolerance of C. leprosum seedlings to salt stress during the emergence and early seedling development. The experiment was carried out between the months of August and September, in a greenhouse, and the substrate used was the commercial coconut fiber wetted with aqueous solutions of sodium chloride (NaCl), calcium chloride (CaCl2) and potassium chloride (KCl) with the electrical conductivities of 0.0, 1.5, 2.5, 3.5, 4.5, 5.5 and 6.5 dS m-1. We used a completely randomized design in a 3 x 7 factorial scheme (three salts x seven levels of electrical conductivity). We evaluated seedling emergence, emergence speed index, root length, shoot length, dry matter of roots and shoots. The results indicated significant interaction between both factors analyzed. The emergence and initial growth of C. leprosum plants decrease gradually due to the increase of the electrical conductivity levels, with root length being less affected by waters salinized with CaCl and KCl. C. leprosum seedlings show sensitivity to the three types of salts and are highly sensitive to KCl and NaCl.
ISSN:1806-6690
0045-6888
1806-6690
DOI:10.5935/1806-6690.20190035