The Influence of Vine Trellising and Trimming on Botrytis Bunch Rot of Grapes PDF Download

Author: Mary Elizabeth Land
Publisher:
ISBN:
Category :
Languages : en
Pages : 86

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Author: Steven David Savage
Publisher:
ISBN:
Category : Grapes
Languages : en
Pages : 162

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Author: Russell Paul Smithyman
Publisher:
ISBN:
Category : Grapes
Languages : en
Pages : 368

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Author: Robert A. Johnson
Publisher:
ISBN:
Category :
Languages : en
Pages : 208

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Author: Radhika Iyer
Publisher:
ISBN:
Category :
Languages : en
Pages : 546

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Vine nutrition, particularly N application in wine grapes, is well known to enhance vine vigour and consequently grape and wine quality. Less is known about the interactive effects of N and irrigation on wine quality and Botrytis bunch rot incidence and severity. The Australian Wine Industry in its 5-year research plan (2002-07) identified Botrytis management strategies as a key area requiring a novel approach for minimizing fungicide application, which is critical to marketing of Australian wine both for the domestic and export markets. This study investigated the role of N nutrition and irrigation management for improving vine vigour, quality and yield of fruit through changes in canopy density and improving cuticular thickness of berries for Botrytis cinerea control using Chardonnay in two field-based (vineyard) trials and Chardonnay and Cabernet Sauvignon in glasshouse-based trials. In the first and second year vineyard trials, 0,30 and 300 kg ha-1N were applied to the soil either with or without irrigation. Effects of N nutrition on B. cinerea infection were also investigated using varieties Chardonnay and Cabernet Sauvignon in glasshouse trials under controlled conditions. Nitrogen (N) application in the glasshouse trials ranged from 25-400 kg ha-1. A leaf bioassay was developed to investigate the infection on leaves across varying N levels. Additional studies looked at effects of N treatment on the severity of B. cinerea infection in berries and resveratrol (stilbenes) in grape leaves, berries and wine in vineyards. In both vineyards, the N applied did not result in significant changes in canopy density, shoot length, yield, or wine quality parameters (OBrix, pH, acidity, total phenols, and N in berries). Also, no significant differences were seen in different levels of N treatment with respect to B. cinerea severity, and stilbene levels in vines over a 2-year period. In glasshouse trials, low N levels (25 kg ha-1) resulted in reduced shoot vigour, low yields and high susceptibility to infection. In contrast, N applications (200 and 400 kg ha-1) maximized vigour (wet cane weight) and imparted resistance in Chardonnay against B. cinerea infection. In Cabernet Sauvignon, the highest level of N application (400 kg ha-1) proved most beneficial in improving vigour and resistance against B. cinerea infection. Preliminary (qualitative) studies on the wax morphology of the berry surface using scanning electron microscopy (SEM) revealed delayed secondary wax plate formation during the veraison period in some replicates of the high N and no irrigation treatment. Further intensive studies would be needed to explore this observation. Light microscopy studies performed to assess the cuticular thickness of the berry at different N treatments did not show any appreciable changes at different stages of berry growth. Field experimental results have implications for farmers and suggest that in regions where vines and soil are not deficient in N, grape growers could avoid excessive soil application of N fertilisers and irrigation to enhance vine vigour for minimizing B. cinerea infection.

Author: Bryan George Coombe
Publisher:
ISBN:
Category : Grapes
Languages : en
Pages : 388

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Volume 2 covers the practical aspects of operating a vineyard and getting the best from grapes. It deals with propagation, establishment, trellising, pruning, canopy management, irrigation, soil management, nutrition, pests, diseases, harvesting, drying of dried fruit. -- From publisher's description.

Author: LARRY J. BETTIGA
Publisher: UCANR Publications
ISBN: 1601078005
Category : Technology & Engineering
Languages : en
Pages : 625

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In the much anticipated 3rd edition of Grape Pest Management, more than 70 research scientists, cooperative extension advisors and specialists, growers, and pest control advisers have consolidated the latest scientific studies and research into one handy reference. The result is a comprehensive, easy-to-read pest management tool. The new edition, the first in over a decade, includes several new invasive species that are now major pests. It also reflects an improved understanding among researchers, farmers, and growers about the biology of pests. With nine expansive chapters, helpful, colorful photos throughout, here’s more of what you’ll find: •Diagnostic techniques for identifying vineyard problems •Detailed descriptions of more than a dozen diseases •Comprehensive, illustrated listings of insect and mite pests,including the recently emerging glassy winged sharpshooter and Virginia creeper leaf-hopper •Regional calendars of events for viticultural management •Up-to-date strategies for vegetation management

Author: Michael G. Mullins
Publisher: Cambridge University Press
ISBN: 9780521305075
Category : Science
Languages : en
Pages : 256

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Information on the evolution, taxonomy, morphology, anatomy, physiology and genetics of grapevines has been scarce and thinly spread in the literature on horticulture and the plant sciences. This book aims to provide a concise but comprehensive overview of the biology and cultivation of the grapevine, accessible to all concerned with viticulture. After a description of the essential features of viticulture, including a concise history from antiquity to modern times, the taxonomy of the grapevine and the evolutionary processes which gave rise to the diversity within the Vitaceae is considered. Particular attention is paid to the genera Vitis and Muscadinia, which are considered a reserve of genetic variation for the improvement of grapevines. A description of the vegetative and reproductive anatomy of the grapevine precedes a full discussion of the developmental and environmental physiology of these fascinating and economically important plants. The concluding chapter considers the potential for genetic improvement of grapevines and includes coverage of the problems encountered, and the methods and strategies employed in breeding for scions and rootstocks.

Author: Various
Publisher: Read Books Ltd
ISBN: 1528763815
Category : Science
Languages : en
Pages : 65

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This vintage book contains a comprehensive guide to growing grapes, with a focus on training vines with the use of trellises and stakes. Written in simple language and profusely illustrated, this volume is highly recommended for budding gardeners with an interest in grape production, and would make for a fantastic addition to collections of related literature. Contents include: “Walls and Trellises”, “Supports and Trellises”, “Vineyard Stakes”, “Vines on Trellises”, “Stakes and Trellises”, “Distances and Trellises”, and “Grape Trellises”. Many vintage books such as this are becoming increasingly rare and expensive. It is with this in mind that we are republishing this volume now in an affordable, high-quality edition complete with a specially commissioned new introduction on growing fruit.

Author: Mahabubur Mollah
Publisher:
ISBN:
Category : Trellises
Languages : en
Pages : 68

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