Author: Gareth Nicholas HillPublisher:
ISBN:
Category :
Languages : en
Pages : 226
Book Description
Investigation of Botrytis Bunch Rot in Wine Grapes
Author: Gareth Nicholas HillPublisher:
ISBN:
Category :
Languages : en
Pages : 226
Book Description
Novel Application of Methods to Investigate Epidemiology and Managemet of Botrytis Bunch Rot in Wine Grapes
Author: Katie Jane DunneGrape Pest Management, Third Edition
Author: LARRY J. BETTIGAPublisher: UCANR Publications
ISBN: 1601078005
Category : Technology & Engineering
Languages : en
Pages : 625
Book Description
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
The Influence of Nitrogen Supply and Deficit Irrigation on Growth and Quality Parameters in Wine Grapes
Author: Radhika IyerPublisher:
ISBN:
Category :
Languages : en
Pages : 546
Book Description
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.
Evaluation of Predictive Models for Botrytis Bunch Rot Infection in Wine Grapes and Their Applicability in Eastern Washington
Author: Michael SchwagerThe Development of Botrytis Bunch Rot on 'Aurore' Grapevines as Related to Cluster Compactness, Cluster Exposure, and Grape Berry Moth Damage
Author: Alice WiseThe Grape Genome
Author: Dario CantuPublisher: Springer Nature
ISBN: 3030186016
Category : Science
Languages : en
Pages : 367
Book Description
This book describes the current state of international grape genomics, with a focus on the latest findings, tools and strategies employed in genome sequencing and analysis, and genetic mapping of important agronomic traits. It also discusses how these are having a direct impact on outcomes for grape breeders and the international grape research community. While V. vinifera is a model species, it is not always appreciated that its cultivation usually requires the use of other Vitis species as rootstocks. The book discusses genetic diversity within the Vitis genus, the available genetic resources for breeding, and the available genomic resources for other Vitis species. Grapes (Vitis vinifera spp. vinifera) have been a source of food and wine since their domestication from their wild progenitor (Vitis vinifera ssp. sylvestris) around 8,000 years ago, and they are now the world’s most valuable horticultural crop. In addition to being economically important, V. vinifera is also a model organism for the study of perennial fruit crops for two reasons: Firstly, its ability to be transformed and micropropagated via somatic embryogenesis, and secondly its relatively small genome size of 500 Mb. The economic importance of grapes made V. vinifera an obvious early candidate for genomic sequencing, and accordingly, two draft genomes were reported in 2007. Remarkably, these were the first genomes of any fruiting crop to be sequenced and only the fourth for flowering plants. Although riddled with gaps and potentially omitting large regions of repetitive sequences, the two genomes have provided valuable insights into grape genomes. Cited in over 2,000 articles, the genome has served as a reference in more than 3,000 genome-wide transcriptional analyses. Further, recent advances in DNA sequencing and bioinformatics are enabling the assembly of reference-grade genome references for more grape genotypes revealing the exceptional extent of structural variation in the species.
Cultural and Chemical Control of Botrytis Bunch Rot of Table Grapes in Chile
Author: Janet C. BroomeManagement of Non-Botrytis Bunch Rots
Author: Christopher C. SteelPublisher:
ISBN:
Category : Grapes
Languages : en
Pages : 79
Book Description
"Fungal rot of grape berries close to harvest cause serious economic losses to grape growers particularly in viticulture regions where rainfall during the ripening period is common. The research documented in this report deals with the organisms responsible for grape berry bunch rots in two sub-tropical regions of New South Wales, the Hunter Valley and Hastings Valley. Once the pathogens were identified, the project investigated some of the properties of these organisms with respect to their biology and possible disease management options for grape growers"--p. 2.
Report on Visit to The Netherlands and France, 21 June to 4 July, 1996
Author: N. G. NairPublisher:
ISBN:
Category : Botrytis cinerea
Languages : en
Pages : 22
Book Description