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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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| LIU,Shuchun; YANG,Ming; ZHAO,Huijie; LI,Hua; SUO,Biao; WANG,Yuexia. |
| Abstract Postharvest lettuce often lose water, thus affecting both its market value and consumer acceptance. However, the mechanism of the water-loss is still waiting well exploration. The aim of the present study was to investigate the effect of a foliar application of ABA on the fresh weight-loss and the chlorophyll content of postharvest lettuce as well as its association with the regulation of stomata. The present data demonstrated that exogenously application of ABA, in a concentration range of 0 to 100 µM, significantly lowered the fresh weight-loss of postharvest lettuce. ABA also delayed chlorophyll reduction during ambient storage, but this protective effect was ABA concentration-dependent. Among the tested ABA concentrations, 50 µM or lower ABA... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lettuce; Postharvest; Abscisic acid; Water-loss; Stomatal closure. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000400729 |
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