Paper · 2004 · Irriga

IRRIGATION AND MULCHING MANAGEMENT FOR SWEET PEPPER CROP IN PROTECTED ENVIRONMENT

Antonio Evaldo Klar; Sidnei Osmar Jadoski; Sidnei Osmar Jadoski

7
claims
11
verbatim quotes
6
citations
2
research areas
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Open access · cc-by-nc-nd

Abstract

IRRIGATION AND MULCHING MANAGEMENT FOR SWEET PEPPER CROP IN PROTECTED ENVIRONMENT Antonio Evaldo Klar1; Sidnei Osmar Jadoski21Rural Engineering Department, Agronomic Science College,Paulista State University , Botucatu-SP (Brazil), klar@fca.unesp.br2Agricultural and Veterinarian Sciences Center, Guarapuava – PR. 1 ABSTRACT This study was developed over the 1999-2000 agricultural years at the Rural Engineering Department of School of Agronomical Sciences, UNESP, Botucatu, SP, under protected environment. The objective was to evaluate the influence of irrigation and black polyethylene mulch management on the water use and fruit production of sweet pepper crop (Capsicum annuum L., Elisa Hybrid) 230 days after seedling transplant (DAST). The study was divided into two experiments: 1) application of the irrigation at -50 and -1500 kPa minimum soil water potentials with and without mulching on the soil, from 29 to 168 DAST. A randomized experimental design was used with six replications; and 2) severe water deficit in the soil through irrigation suspension and mulching removal (169 to 230 DAST). Drip fertigation was used and soil water was monitored by tensiometers and neutron probe. It was verified that: - the severe drought stress caused leaf senescence and abscission and significantly affected the production and quality of sweet pepper fruits and the Water Use Efficiency (WUE); - the fruit yield and number were higher in the treatments with mulching, therefore polyethylene mulching showed to be an efficient technique to reduce irrigation number and water volume applied. This efficiency was reduced with soil water content decreases based on fruit yield. Pepper plants showed good osmotic adjustment and, consequently, tolerance to water stress. KEYWORDS: drought stress, polyethylene mulching, soil water potential KLAR, A. E.; JADOSKI, S. O. IRRIGAÇÃO E COBERTURA MORTA EM PLANTAS DE PIMENTÃO EM AMBIENTE PROTEGIDO 2 RESUMO O trabalho foi desenvolvido no ano agrícola 1999-2000, em casa de vegetação, no Departamento de Engenharia Rural da Faculdade de Ciências Agronômicas - UNESP, campus de Botucatu, SP. O objetivo foi estudar o efeito de diferentes manejos da água de irrigação e de cobertura de polietileno preto na superfície do solo sobre o consumo de água e produção de frutos da cultura do pimentão (Capsicum annuum L, híbrido Elisa), por um período de 230 dias após o transplante das mudas (DAT). O trabalho foi composto por dois experimentos: I) aplicação dos manejos da irrigação a 50 kPa e 1500 kPa, com e sem a presença de cobertura de polietileno preto sobre a superfície do solo, para o período de 29 a 168 DAT. O delineamento experimental foi inteiramente casualizado com seis repetições, e II) aplicação de deficiência hídrica severa no solo, através da suspensão das irrigações e retirada da cobertura de polietileno do solo, no período de 169 a 230 DAT. Concluiu-se que a deficiência hídrica afeta a qualidade e a produção dos frutos do pimentão. A utilização de cobertura de polietileno sobre o solo é técnica eficiente para reduzir a necessidade de irrigações e o volume de água a ser aplicado aos cultivos e sua eficiência é reduzida na medida em que diminui o conteúdo de água do solo. Houve significativa influencia no ajuste osmótico pela aplicação dos estresses hídricos nos tratamentos em que o potencial mínimo de água no solo atingiu 1500 kPa. UNITERMOS: deficiência hídrica, potencial de água do solo, polietileno preto

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Claims 7

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Severe drought caused leaf senescence and abscission.

Taxon
sweet pepper cropCapsicum annuumt0
Treatment
severe drought stresse0
Outcome
leaf senescence and abscissione0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the severe drought stress caused leaf senescence and abscission”

✓ located verbatim in the source · abstract, characters 1223–1286 · show in text ↑
t0

“SWEET PEPPER CROP”

✓ located verbatim in the source · title, characters 39–56 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Severe drought significantly affected fruit production and quality.

Taxon
sweet pepperCapsicum annuume0
Treatment
severe drought stresse0
Outcome
production and quality of sweet pepper fruitse0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the severe drought stress caused leaf senescence and abscission and significantly affected the production and quality of sweet pepper fruits”

✓ located verbatim in the source · abstract, characters 1223–1363 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Severe drought significantly affected water use efficiency.

Taxon
sweet pepperCapsicum annuume0
Treatment
severe drought stresse0
Outcome
Water Use Efficiency (WUE)e0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the severe drought stress caused leaf senescence and abscission and significantly affected the production and quality of sweet pepper fruits and the Water Use Efficiency (WUE)”

✓ located verbatim in the source · abstract, characters 1223–1398 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mulching increased fruit yield and fruit number.

Taxon
sweet pepper cropCapsicum annuumt0
Treatment
mulchinge0
Outcome
fruit yield and numbere0
Direction
highere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the fruit yield and number were higher in the treatments with mulching”

✓ located verbatim in the source · abstract, characters 1402–1472 · show in text ↑
t0

“SWEET PEPPER CROP”

✓ located verbatim in the source · title, characters 39–56 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Polyethylene mulch reduced irrigation frequency and volume applied.

Taxon
sweet pepper cropCapsicum annuumt0
Treatment
polyethylene mulchinge0
Outcome
irrigation number and water volume appliede0
Direction
reducee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“polyethylene mulching showed to be an efficient technique to reduce irrigation number and water volume applied”

✓ located verbatim in the source · abstract, characters 1484–1594 · show in text ↑
t0

“SWEET PEPPER CROP”

✓ located verbatim in the source · title, characters 39–56 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Mulch efficiency decreased as soil water content fell.

Taxon
sweet pepper cropCapsicum annuumt0
Treatment
soil water content decreasese0
Outcome
efficiencye0
Direction
reducede0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“This efficiency was reduced with soil water content decreases based on fruit yield.”

✓ located verbatim in the source · abstract, characters 1596–1679 · show in text ↑
t0

“SWEET PEPPER CROP”

✓ located verbatim in the source · title, characters 39–56 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Pepper plants showed osmotic adjustment and water stress tolerance.

Taxon
Pepper plantse0
Outcome
good osmotic adjustmente0

Verbatim

e0

“Pepper plants showed good osmotic adjustment and, consequently, tolerance to water stress.”

✓ located verbatim in the source · abstract, characters 1680–1770 · show in text ↑

drought · quality: postharvest · Capsicum annuum (sweet pepper)Positive and negative results

4 papers: 1 positive, 3 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. negative
  3. negative
See all 4 papers →

mulching · yield · Capsicum annuum (sweet pepper)Positive and negative results

37 papers: 35 positive, 2 negative or no effect

34 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. no effect
  3. positive

33 papers more in this group

See all 37 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.