The genus Citrus amounts to one of the most relevant fruit crops in world. This work assays overall quality information order ascertain optimal harvest timing three late-season orange cultivars (‘Barberina’, ‘Valencia Midknight’ and Delta Seedless’) during two consecutive growing seasons. Thus, morphological physicochemical parameters, organic acids, polyphenolic content antioxidant activity (A...

in this study, to determine poisson’s ratio and modulus of elasticity of white seedless grapes during maturation, the fresh fruit samples were harvested from a vineyard at seven sequential weeks from 6th september to 18th october. in each run, six grape berries were randomly selected and the static loading test and digital photography were done together. considering true shape of the fruit and ...

This study deals with the best responses of a diverse collection grapevine genotypes to osmotic stress associated source-sink balance given by an estimator such as leaf area fruit ratio. ‘Centennial Seedless’, drought tolerant cultivar, was selected control. The cultivars, ‘Victoria’ and ‘Argessis’, were chosen repetition from previous research dealing pollen grain test, two years ago. Ten hybr...

We evaluated crop load, fruit yield and size in several grapefruit blocks on the central Florida Ridge and in the Indian River areas over three growing seasons to determine potential causes of elongated, sheepnosed grapefruit. Previous studies showed that relatively higher rates of N fertilization and high early season (February-July) temperatures within tree canopies resulted in high percentag...

Parthenocarpic fruit development (PFD) reduces fruit yield and quality in grapevine. Parthenocarpic seedless berries arise from fruit set without effective fertilization due to defective pollen germination. PFD has been associated to micronutrient deficiency but the relation of this phenomenon with pollen polymorphism has not been reported before. In this work, six grapevine cultivars with diff...

Plant-based media have recently been of interest as potential natural for microbial culture. This study was conducted to apply inexpensive and available fruits culture Bacillus antagonizing three fungal phytopathogens including Phytophthora capsici GTC 2.6.1, Rhizoctonia solani 2.7.1, Sclerotium rolfsii 2.9.1. The results showed that the juice dragon fruit, Cavendish banana, watermelon, pineapp...

Antioxidant potency of Indian grape cultivars varying in their skin color, seed and polyphenol content (Bangalore blue, Pandhari sahebi, Sharad seedless and Thompson seedless) and their components (whole grapes, pulp with skin and seeds) was examined as 2,2'-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity using electron spin resonance spectrometry. The total polyphenols in Indian g...

To dissect the role of gibberellins in tomato development, we have constitutively down-regulated the gene GA 20-oxidase1 (GA20ox1). Plants co-suppressed for GA20ox1 (referred to as CO-6 plants) showed vegetative defects typical of GA deficiency such as darker and mis-shaped leaves and dwarfism. CO-6 plants flowered as the controls, although their flowers had subtle defects in the pedicel and in...

Gibberellic acid (GA3) is the most widely used plant growth regulator to thin out bunches and increase berry size in seedless table grapes, but there evidence of its negative effects, including loss fertility malformations rachis. This study analyses effects applying auxin indole-3-butyric (IBA), as a novel alternative, on fruit yield, bunch structure, anatomy postharvest quality cv. Superior S...

Pre-embryogenic calli were obtained from the culture of fertilized immature ovules of muscadine ( Vitis rotundifolia Michx.) and seedless bunch grapes ( Vitis vinifera L.) on: 1) Murashige & Turcker (MT, 1969) basal medium supplemented with 4.4 μM 2, 4-D (2, 4-dichlorophenoxyacetic acid) and 1 μM BA (6-benzyladenine) with 6.0% (w/v) sucrose; 2) Chee and Pool (CP, 1978) basal medium supplemented...