Author: Brad Lindsay Kuhlman
Publisher:
ISBN:
Category : Grapes
Languages : en
Pages : 64

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Author: Surinder Kumar Sehrawat
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Alberto Alfonso Camou
Publisher:
ISBN:
Category : Grapes
Languages : en
Pages : 46

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Interest in horticultural crops such as the muscadine grape (Vitis rotundifolia Michx.) has grown in recent years due to declining production of tobacco and other agronomic crops. Most growers choose to mechanically prune muscadines due to the low returns on wine grapes and the high cost of labor. However, such pruning practices may reduce long-term vine vigor and juice quality. The objective of this study was to quantify how different pruning levels affect vine vigor, fruit quality, and disease incidence on 'Carlos' muscadine grapes. Four pruning levels were established on four-year-old vines: the retention of either 200, 300, or 400 nodesD ine or simulated mechanical pruning (SMP). The treatments were applied in winter 2006 and 2007 at three North Carolina vineyards, one each in Duplin, Scotland, and Orange counties. It must be noted, a freeze occurred in early April 2007 that caused severe damage on grapevines across the state including vineyards used in this study. Although SMP vines had more than double the number of original nodes, the 300 and 400 node treatment vines produced yields similar to SMP vines in different years at different locations. Severe pruning and cold injury to buds forced latent secondary and tertiary buds to break that may have supplemented the muscadine crop. In a study in 2007, shoot origin (e.g. base bud versus count bud) did not affect shoot fruitfulness. Base buds were less mature at harvest than count buds, presumably as a result of delayed budbreak. Fruit from SMP vines did not differ in juice quality parameters (percent soluble solids, pH, or titratable acidity) in either year from other pruning treatments. The Ravaz index, a ratio of fruit yield (kg) to pruning weight (kg), indicates the balance between fruit yield and vegetative growth. Typical values of balanced V. vinifera grapevines fall between 5.0 and 10.0. Indices in the present study ranged from 2.3 to 12.7 depending on treatment, location, and year. The SMP vines in.

Author: S. Senthilkumar
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659821554
Category :
Languages : en
Pages : 108

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Grape (Vitis vinifera L.) is an important commercial fruit crop in India and its area is increasing steadily with the introduction of exotic varieties. Recently, an exotic cultivar Italia, commercially under cultivation in Italy and other parts of the world, is introduced; the performance of which under Tamil Nadu conditions is unknown. Pruning is considered as the most important cultural practice, and pruning all the matured canes to fruiting results in gradual depletion of reserved food materials leading to loss of vigor, quality and early setting of senility in vines. So, the present study is to standardize the optimum crop load management practices by means of pruning and study certain phenological and physiological characters with respect to yield attributes in grape cv. Italia.

Author: Mohinder Singh Joon
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Shinde Vinod
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659803734
Category :
Languages : en
Pages : 72

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Grape (Vitis vinifera L.) belong to family vitaceae which is divided into two sub-genera, Euvitis Planch (2n=38) and Muscadinia Planch (2n=40). Most commercial grapes belong to genus Vitis which contain about 60 species found mainly in the temperate zones of the Northern Hemisphere and distributed almost equally between America and Asia. It is an important commercial fruit crop and one of the most widely cultivated in Temperate, Sub- tropical and Tropical regions of the world. The present investigation indicated that the bio-regulator ABA was found suitable for to develop uniform colour in Flame Seedless grape i.e. Treatment T6 ABA @ 400 ppm at before veraison stage. As refers to yield attributes the treatment T4 i.e. 6-BA @ 300 ppm at before veraison stage showed significantly increased in yield, while in respect of quality attributes the bunches dipped in ABA @ 300 ppm i.e. Treatment T5, ABA @ 400 ppm i.e. Treatment T6 before veraison stage and ABA @ 300 ppm i.e. Treatment T11, ABA @ 400 ppm i.e. Treatment T12 after veraison stage showed improvement in quality.

Author: V. Parthasarathy Reddy
Publisher:
ISBN:
Category :
Languages : en
Pages : 33

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Author: Nathu Ram Godara
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Mohamed Saleh
Publisher: GRIN Verlag
ISBN: 3640975618
Category : Technology & Engineering
Languages : en
Pages : 25

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Project Report from the year 2002 in the subject Agrarian Studies, National Research Center - Agricultral and Biological Research Devision (-), language: English, abstract: High planting density is considered one of the modern management systems in new fruit orchards. Pruning and population adjustment are some of the main way to approach high productivity and good fruit quality under the modern management systems. Pruning is defined as the management of plant structure and fruiting wood and it is considered one of the main factors affecting fruit trees production. There are many objectives for pruning i.e. controlling the direction of growth, developing a strong framework, controlling the amount of growth, improved productiveness, improving quality product, utilizing space efficiently and increasing the usefulness of plant. There are three main systems of fruit trees training (i) Central leader system, (ii) Modified leader system, (iii) Open center or vase system. Also there are several kinds of pruning i.e. heading back and thinning out, fine and coarse pruning and root pruning. However, it is important to select the suitable training system and kind of pruning according to the target of the pruning to reach optimum vegetative growth and maximum yield with high fruit quality. On the other hand, population adjustment (plant distribution or planting density) is very important factor affecting fruit trees production. We can reach the optimum usefulness of the planted area by using best population adjustment of trees in the plantation. Trees can be planted using different systems:- triangle, rectangle, square system.....etc. On the other side, presence of pollinator trees through the orchard is very important for many fruit trees. Pollinator can be planted either in (1) Complete along rows, as one row of pollinator per two or four rows of the main cultivar. (2) The second tree in the second row. (3) The third tree in the third row. (4) Across rows through the orchard. On the other hand, good plant distribution is very helpful for mechanical serves in the plantation, We can say that the key objective in planning a new orchard should be to maximize yield in the early years and still effectively produce larger yield of high quality fruits in the next years. This may be happened by utilizing space efficiently and increasing the usefulness of plant using the suitable training system, kind of pruning, also good population adjustment of the trees in the orchard beside the importance of the other factors affecting production process.