NDLI: QUALIDADE DE TOMATE EM FUNÇÃO DA SALINIDADE DA ÁGUA DE IRRIGAÇÃO E RELAÇÕES K/Ca VIA FERTIRRIGAÇÃO

Please wait, while we are loading the content...

QUALIDADE DE TOMATE EM FUNÇÃO DA SALINIDADE DA ÁGUA DE IRRIGAÇÃO E RELAÇÕES K/Ca VIA FERTIRRIGAÇÃO

Content Provider	Semantic Scholar
Author	Paiva, Francisco Ítalo Gomes Oliveira, Francisco Medeiros, José Francismar De Targino, A. J. O. Santos, S. T. Silva, Ricardo Pereira Da
Copyright Year	2018
Abstract	QUALIDADE DE TOMATE EM FUNCAO DA SALINIDADE DA AGUA DE IRRIGACAO E RELACOES K/Ca VIA FERTIRRIGACAO FRANCISCO ITALO GOMES PAIVA1; FRANCISCO DE ASSIS DE OLIVEIRA2; JOSE FRANCISMAR DE MEDEIROS2; ANA JACQUELINE DE OLIVEIRA TARGINO1; SANDY THOMAZ DOS SANTOS2 E RICARDO CARLOS PEREIRA DA SILVA3 Programa de Pos-Graduacao em Manejo de Solo e Agua, Universidade Federal rural do Semi-Arido, UFERSA, Mossoro, RN. italo-gp@hotmail.com; ana_jacqueline2@hotmail.com Departamento de Ciencias Agronomicas e Florestais, Universidade Federal rural do Semi-Arido, UFERSA, Mossoro, RN. thikaoamigao@hotmail.com; jfmedeir@ufersa.edu.br; sandy_thomaz@hotmail.com Programa de Pos-Graduacao em Agronomia, Universidade Federal da Paraiba, Areia, PB. ricarlos_agro@hotmail.com 1 RESUMO A qualidade do tomate esta diretamente relacionada com a qualidade da agua utilizada na irrigacao e com o suprimento adequado de nutrientes, principalmente o potassio e o calcio. Este trabalho foi desenvolvido em ambiente protegido na UFERSA, em Mossoro, RN, com o objetivo avaliar a qualidade do tomate em funcao de diferentes relacoes ionicas de potassio e calcio (K+/Ca2+), sendo: F1=1,5:1; F2=1,25:1; F3=1:1; F4=1:1,25 e F5=1:1,5 e quatro niveis de salinidade da agua de irrigacao (S1-0,5; S2-2,0; S3-3,5 e S4-5,0 dS m-1). O delineamento experimental utilizado foi em blocos casualizados, em esquema fatorial 5 x 4, totalizando 20 tratamentos, com quatro repeticoes. A relacao K+/Ca2+=1:1 correspondente a concentracao desses nutrientes recomendada para a cultura em cultivo de tomateiro hidroponico. Foram avaliadas as variaveis relacionadas a qualidade de frutos (solidos soluveis, vitamina C, acidez titulavel, pH e relacao AT/SS). O uso de agua com salinidade entre 2,0 e 3,5 dS m-1 aumenta a qualidade do tomate pelo aumento da razao SS/AT. As fertirrigacoes com maiores concentracoes de K favorecem a qualidade dos frutos para salinidades ate 3,5 dS m-1, mas nao afetam a qualidade de tomate na salinidade 5,0 dS m-1. Palavras-chave: solanaceas, uso de aguas salinas, potassio, calcio PAIVA, F. I. G; OLIVEIRA, F. A.; MEDEIROS, J. F.; TARGINO, A. J. O.; SANTOS, S. T.; SILVA, R. C. PQUALITY OF TOMATO AS FUNCTION OF IRRIGATION WATER SALINITY AND K/CA RATIO IN FERTIGATION 2 ABSTRACT The quality of tomato is directly related to the quality of the water used in irrigation and to the adequate supply of nutrients, mainly potassium and calcium. The objective of this work was to evaluate the quality of tomatoes as a function of the different ionic ratios of potassium and calcium (K+/ Ca2+), with: F1 = 1.5:1; F2 = 1.25:1; F3 = 1: 1; F4 = 1:1.25 and F5 = 1:1.5 and four irrigation water salinity levels (S1-0.5, S2-2.0, S3-3.5 and S4-5.0 dS m-1). The experimental design was a randomized complete block design in a 5 x 4 factorial scheme, totaling 20 treatments, with four replications. The K+/Ca2+ ratio = 1:1 corresponds to the concentration of these nutrients recommended for cultivation in a hydroponic tomato crop. The variables related to fruit quality (soluble solids, Vitamin C, titratable acidity, pH and AT / SS ratio) were evaluated. The use of water with salinity between 2.0 and 3.5 dS m-1 increases tomato quality by increasing the SS/AT ratio. Fertigation with higher concentrations of K favor fruit quality at salinity up to 3.5 dS m-1, but do not affect tomato quality at 5.0 dS m-1 salinity. Keywords: solanaceae, use of salt water, potassium, calcium
Starting Page	180
Ending Page	193
Page Count	14
File Format	PDF HTM / HTML
DOI	10.15809/irriga.2018v23n1p180
Volume Number	23
Alternate Webpage(s)	http://irriga.fca.unesp.br/index.php/irriga/article/download/2698/2250
Alternate Webpage(s)	https://doi.org/10.15809/irriga.2018v23n1p180
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in