Search results for "RIPENING"

Effect of 1-methylcyclopropene on ripening of melting flesh peaches and nectarines

2004

Abstract 1-Methylcyclopropene (1-MCP), an ethylene action inhibitor, was applied to early season, melting flesh stone fruit to try to extend their shelf life. ‘Almog’ and ‘Oded’, two white flesh peaches, and ‘April Glow’, a yellow flesh nectarine, were tested. Application of 1-MCP was at both 20 and 0 °C for 5, 10 and 20 h and at concentrations from 0.5 to 20 μl l −1 . When treated at 0 °C the fruits were stored for 5 days before removal to 20 °C for ripening. 1-MCP slowed fruit softening in a concentration and time dependent manner, extending the period before the fruits became over-soft. The inhibition of softening was greater when fruits were treated and held at 20 °C than if they were t…

QUALITY ATTRIBUTES, PECTOLYTIC ENZYME ACTIVITIES AND PHYSIOLOGICAL CHANGES DURING POSTHARVEST RIPENING OF NECTARINE

1996

The postharvest ripening at 20C and 90-95% RHfor 10 days of 'Armking' nectarine grown in a greenhouse was investigated over two seasons. Firmness, titratable acidity, ascorbic acid, pH and maturity index were all adequate to stablish the rate ofripening. However, soluble solids content and reducing and non-reducing sugars showed no significant changes. It took about 10 days for very early ripening fruit (100 g weight and 82 N firmness) and 6 days for normal early ripening fruits (115 g weight and 46 N firmness), both harvested at preclimacteric stage, to become eating ripe (near 20 N). Total weight loss and decay after 10 days was approximately 11%. During ripening there was a temporal coin…

Principal Parameters of Grape Ripening and Wine Fermentation

2008

Deciphering transcriptional regulation mechanisms underlining fruit development and ripening in Vitis vinifera

2019

BACKGROUND: Grapes (Vitis vinifera ) are an important woody crop cultivated in a broad range of environmental conditions. Grapefruit development is a physiological process whose molecular regulatory networks are still not sufficiently investigated. OBJECTIVE: The primary aim of the work was to identify which key genes, molecular mechanisms and networks were involved in fruit ripening and development through a comparison of available transcriptomic data at different stages during grape development and ripening. Secondly, we aimed at identifying among these fruit-related genes, which genes play also a functional role in other developmental and physiological processes in reproductive tissues (…

Open Field Study of Some Zea mays Hybrids, Lipid Compounds and Fumonisins Accumulation

2015

Lipid molecules are increasingly recognized as signals exchanged by organisms interacting in pathogenic and/or symbiotic ways. Some classes of lipids actively determine the fate of the interactions. Host cuticle/cell wall/membrane components such as sphingolipids and oxylipins may contribute to determining the fate of host–pathogen interactions. In the present field study, we considered the relationship between specific sphingolipids and oxylipins of different hybrids of Zea mays and fumonisin by F. verticillioides, sampling ears at different growth stages from early dough to fully ripe. The amount of total and free fumonisin differed significantly between hybrids and increased significantl…

Yield and Fruit Quality Characterization of Eight Old Sicilian Apple Cultivars

2011

In this trial, we examined the quality of eight old Sicilian apple cultivars (‘Cannamelo’, ‘Cardinale’, ‘Gelata Cola’, ‘Gelata’, ‘Granatino’, ‘San Giuseppe’, ‘Virticchiaro’, ‘Zitella’) and a commercial one (‘Annurca’ traditional clone) through bio-agronomic performances and chemical-physical analyses. We also analyzed flowering time, ripening time, pomological characteristics, and generated a specific descriptor list that indicates a great variability among the cultivars. The data obtained showed interesting characteristics in ‘Granatino’, ‘Virticchiaro’, and ‘Zitella’, such as total soluble solid, fruit size, peel cover color, yield efficiency, and crop load.

Genetic diversity of early ripening breba accessions (Ficus caricaL.) found in the “Pomona” Apulian collection

2017

In order to study fig (Ficus carica L.) biodiversity in Southern Italy, a study was performed in a private Apulian collection, "I Giardini di Pomona", in which 350 different native and international cultivars were recovered in the last 15 years. This collection is located in middle part of Apulia region inside an area of great charm called "Valle D'Itria". In the region, fig is an important edible fruit tree species and it has been used for fresh fruit production, for centuries. Moreover, fig is considered as an important element of natural landscape and as significant cultural heritage. In this study, the Apulian breba cultivars, characterized by interesting agronomic traits, such as early…

Effects of plant type on two strawberry cultivars in Sicily

2014

In Sicily fresh plants have for years been replacing the once popular cold-stored ones. Good early cropping is the aim of all strawberry growers in the island’s Marsala district. The present trial tested the response of the new strawberry cultivars ‘Sabrosa’ and ‘Florida Fortuna’ using fresh plug and bare-root plants. ‘Florida Fortuna’ plug-plants turned out to be the most promising type as a cash crop in delivering extra early ripening.

Quality of cactus pear [Opuntia ficus-indica (L.) Mill.] fruit in relation to ripening time, CaCl2 pre-harvest sprays and storage conditions

1999

Abstract Post-harvest behaviour of summer and autumn ripening cactus pear ( Opuntia ficus-indica (L.) Mill. Cactaceae) fruit cv. Gialla was investigated in relation to pre-harvest growing conditions, and CaCl 2 applications. Summer ripening cactus pear fruit were stored for 5 weeks at 6°C and 90–95% relative humidity (RH), and 3 days at 20°C, 75% RH to simulate a marketing period (SMP). Autumn ripening fruits were kept under the same conditions for 7 weeks plus a SMP. Summer ripening cactus pear fruit were more susceptible to chilling injury and to weight loss, but less sensitive to decay than autumn fruit. CaCl 2 delayed rind colour development and increased fruit resistance to decay but p…

Effect of cladode shading on growth and ripening of fruits of cactus pear (Opuntia ficus-indicaL. Miller)

1997

SummaryFruiting cladodes of O. ficus-indica were covered with shade nets at different stages of the fruit development period to study the effect of the time and duration of shade on fruit growth, ripening time and harvest quality. Shading the fruiting cladodes 0, 15 and 30 d after full bloom (DAB) for a period of 15, 30, 45, 60 or 75 d significantly reduced fruit growth and ultimate harvest size. The longer the shading period the greater was the reduction of harvest fruit size. The greatest reduction of fruit growth (30%) occurred when the fruiting cladodes were shaded from bloom to harvest. Differences in growth rate beween fruits on shaded or sunlit cladodes begun to appear at 30 DAB and …