Search results for " crop load"

showing 3 items of 3 documents

Fruit yield and quality responses of apple cvars Gala and Fuji to partial rootzone drying under Mediterranean conditions

2012

SUMMARYIncreasing irrigation efficiency is a major goal for fruit production in dry Mediterranean environments. The present study was conducted in three consecutive years (2007–09) under typical Mediterranean conditions and tested the effect of partial rootzone drying (PRD) on yield and fruit quality of two apple cultivars: Gala, with fruit maturing in summer and Fuji, with fruit maturing in autumn. Three irrigation treatments were imposed: conventional irrigation (CI), PRD (0·50 of CI water on one side of the rootzone, which was alternated periodically) and continuous deficit irrigation (DI, 0·50 of CI water on both sides of the rootzone). During the 2008 and 2009 irrigation seasons, DI re…

Mediterranean climateCanopyIrrigationcrop load deficit irrigation Malus domestica peel color profit sorbitol sucroseDeficit irrigationBiologySettore AGR/03 - Arboricoltura Generale E Coltivazioni ArboreeCropHorticultureYield (wine)BotanyGeneticsAnimal Science and Zoologycarbohydrates crop load deficit irrigation fruit peel color soluble solidsCultivarAgronomy and Crop ScienceWater contentThe Journal of Agricultural Science
researchProduct

Growth, yield and fruit quality of 'Tropic Snow' peach on size-controlling rootstocks under dry Mediterranean climates

2013

Abstract A six-year trial was carried out to evaluate the vegetative and productive performance of low-chill, early-ripening ‘Tropic Snow’ peach grown on five peach × almond rootstocks, different for their vigor. The study was conducted in south-western Sicily using 45 V-trained peach trees planted in 2005 and grafted on GF677, the most common rootstock in Sicily, and four low-vigor rootstocks selected at the Department of Agricultural, Food and Environmental Sciences, University of Pisa, namely IS5/8 (Polluce), IS5/19 (Castore), IS5/23, and IS5/29. Trunk circumference, winter and summer pruning weight, total number and weight of fruits per tree, and major fruit quality traits were recorded…

Mediterranean climateIrrigationStomatal conductanceassimilation rate crop load fruit weight trunk growth yield efficiency water deficitbusiness.industryYield efficiencyHorticultureSnowSettore AGR/03 - Arboricoltura Generale E Coltivazioni ArboreeHorticultureAgriculturePostharvestRootstockbusiness
researchProduct

Growth stage and conditions affect sorbitol:sucrose ratio in peach source and sink organs

2008

Along with sucrose, sorbitol represents the major photosynthetic product and the main form of translocated carbon in peach. In leaves, the ability to synthesize and accumulate sorbitol and sucrose increases with leaf age or distance from the apex until full maturity. Also, in the internodes of a growing shoot sorbitol:sucrose ratio (SOR:SUC) increases with distance from the apex. In mature leaves, SOR:SUC increases in response to fruit sink removal and water deficit, due mainly to sorbitol rather than sucrose accumulation. Data from ‘Encore’ peach show that SOR:SUC remains fairly constant around 2:1 from the leaf blade all the way to the fruit peduncle and drops sharply in the fruit flesh a…

carbohydrates crop load fruit leaf area root tip shoot tip
researchProduct