Gas exchange in yellow passion fruit under irrigation water salinity and nitrogen fertilization

Author:

Wanderley José A. C.1ORCID,Azevedo Carlos A. V. de1ORCID,Brito Marcos E. B.2ORCID,Ferreira Fagner N.3ORCID,Cordão Mailson A.1ORCID,Lima Robson F. de1ORCID

Affiliation:

1. Universidade Federal de Campina Grande, Brazil

2. Universidade Federal de Sergipe, Brazil

3. Universidade Federal Rural do Semiárido, Brazil

Abstract

ABSTRACT The objective of this study was to evaluate the gas exchange of ‘Redondo Amarelo’ passion fruit seedlings under the mitigating action of nitrogen fertilization on the salinity of irrigation water. The experiment was carried out in a greenhouse of the Universidade Federal de Campina Grande (CCTA-UFCG), Campus of Pombal, PB, Brazil, The experimental design was in randomized blocks, split plots, comprising five irrigation water electrical conductivities (plot) (ECw) (0.3; 1.0; 1.7; 2.4 and 3.1 dS m-1) and five doses of nitrogen (subplot) (60; 80; 100; 120 and 140% of 300 mg of N dm-3), in five blocks. Plants were grown in pots (Citropote JKS®) with volume of 3.780 mL, filled with soil, bovine manure, wood shavings in a proportion of 2:1:0.5 (mass basis), respectively. Water with salinity levels was applied in the period from 40 to 85 days after sowing. The internal CO2 concentration, transpiration, stomatal conductance and photosynthesis were measured at 55 and 70 days after sowing. There was an attenuating effect of nitrogen doses at irrigation water electrical conductivities of 1.7 and 2.4 dS m-1 on photosynthesis at 55 DAS. Irrigation water salinity reduces most of the variables evaluated, especially at the highest level studied (3.1 dS m-1).

Publisher

FapUNIFESP (SciELO)

Subject

Agronomy and Crop Science,Environmental Engineering

Reference27 articles.

1. Köppen’s climate classification map for Brazil;Alvares C. A.;Meteorol Zeitschrift,2013

2. Gas exchanges and growth of passion fruit under saline water irrigation and H2O2 application;Andrade E. M. G.;Revista Brasileira de Engenharia Agrícola e Ambiental,2019

3. A qualidade de água na agricultura;Ayers R. S.,1999

4. Gas exchange of citrus rootstocks in response to intensity and duration of saline stress;Barbosa R. C. A.;Semina: Ciencias Agrarias,2017

5. Overcoming ammonium toxicity;Bittsánszky A.;Plant Science,2015

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3