Physiological and growth response to moderate water deficit of off-season potatoes in Mediterranean environment (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Physiological and growth response to moderate water deficit of off-season potatoes in Mediterranean environment (Articolo in rivista) (literal)

Anno

• 2006-01-01T00:00:00+01:00 (literal)

Alternative label

• Ierna A, Mauromicale G (2006)
  Physiological and growth response to moderate water deficit of off-season potatoes in Mediterranean environment
  in Agricultural water management (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Ierna A, Mauromicale G (literal)

Pagina inizio

• 193 (literal)

Pagina fine

• 209 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 82 (literal)

Rivista

• Agricultural water management (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• CNR - ISAFOM, Sede di Catania Università di Catania, DISPA (literal)

Titolo

• Physiological and growth response to moderate water deficit of off-season potatoes in Mediterranean environment (literal)

Abstract

• Since the Mediterranean climate allows for off-season production, potatoes are commonly planted in the autumn-early winter and harvested in the spring. During this growing period, the crop experiences low temperature and short day length, and periodic soil water deficit, all of which may modify the physiological responses, and consequently the growth characteristics of the plant. A field physiological analysis was conducted to clarify the effect of moderate water deficit on the rate of photosynthesis, the diffusive leaf resistance, the above-ground biomass, and the tuber growth and yield of potato. A number of relationships among physiological parameters, tuber yield and plant dry weight was also analyzed. Field experiments using two cultivars were conducted in Sicily (South Italy) over two planting dates and two irrigation regimes. Plants at moderate water deficit showed increased diffusive leaf resistance, and decreased photosynthetic rate, above-ground plant dry weight, tuber growth and consequently tuber yield in comparison to well watered controls. A linear, negative and significant relationship between photosynthetic rate and diffusive leaf resistance was established. The decrease in photosynthetic rate associated with increasing diffusive leaf resistance was more marked in the variety Spunta than in Sieglinde, reflected in a greater yield sensitivity of the former cultivar to moderate water deficit. On the basis of our results, and considering its good tuber quality characteristics, the cultivar Sieglinde is recommended in areas with limited water supply, while Spunta should be more favoured in areas with a better water supply. The mean photosynthetic rate was significantly and positively associated with the above-ground biomass (stems + leaves), but not with tuber yield. (literal)

Prodotto di

• Institute for Agricultural and Forest Systems in the Mediterranean (ISAFoM) (Istituto)
• Agrotecnologie per il miglioramento della quantità e della qualità dei prodotti tipici mediterranei (AG.P04.017.001) (Modulo)

Autore CNR

• ANITA IERNA (Unità di personale interno)

Insieme di parole chiave

• Keywords of "Physiological and growth response to moderate water deficit of off-season potatoes in Mediterranean environment" (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute for Agricultural and Forest Systems in the Mediterranean (ISAFoM) (Istituto)
• Agrotecnologie per il miglioramento della quantità e della qualità dei prodotti tipici mediterranei (AG.P04.017.001) (Modulo)

Autore CNR di

• ANITA IERNA (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Agricultural water management (Rivista)

Insieme di parole chiave di

• Keywords of "Physiological and growth response to moderate water deficit of off-season potatoes in Mediterranean environment" (Insieme di parole chiave)