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| Gil M,Pilar M; Ferreyra E,Raúl; Barrera M,Cristián; Zúñiga E,Carlos; Gurovich R,Luis. |
| In Chile, avocado (Persea americana Mill.) orchards are often located in poorly drained, low-oxygen soils, situation which limits fruit production and quality. The objective of this study was to evaluate the effect of injecting soil with hydrogen peroxide (H2O2) as a source of molecular oxygen, on plant water status, net CO2 assimilation, biomass and anatomy of avocado trees set in clay loam soil with water content maintained at field capacity. Three-year-old Hass avocado trees were planted outdoors in containers filled with heavy loam clay soil with moisture content sustained at field capacity. Plants were divided into two treatments, (a) H2O2 injected into the soil through subsurface drip irrigation and (b) soil with no H2O2 added (control). Stem and... |
| Tipo: Journal article |
Palavras-chave: Stomatal closure; Net photosynthesis; Root histology; Oxygen injection; Root hypoxia; Subsurface drip irrigation. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000100012 |
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| Silva,Cícero J. da; Frizzone,José A.; Silva,César A. da; Golynski,Adelmo; Silva,Luiz F. M. da; Megguer,Clarice A.. |
| ABSTRACT Irrigation management is essential for tomato fruits yield and quality. Therefore, the aim of this study was to evaluate the yield of tomatoes for industrial processing, ‘BRS Sena’ hybrid, subjected to water depths and irrigation suspension periods before harvest, irrigated by subsurface drip irrigation, in Goiás, Brazil (17º 49’ 19.5” S and 49º 12’ 11.3” W), in 2015 and 2016. The experiments were conducted under a randomized complete block design, with four replications, in split plots. Five irrigation levels (50, 75, 100, 125 and 150% of crop evapotranspiration) were evaluated in the plots and five irrigation suspension periods (0, 7, 14, 21 and 28 days before harvest) were evaluated in the subplots. At 125 days after transplanting the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum lycopersicon L.; Subsurface drip irrigation; Industrial tomato; Irrigation management; Crop evapotranspiration. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000800591 |
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