Article

Organic Alternative for Breaking Dormancy in Table Grapes Grown in Hot Regions

American Journal of Agricultural and Biological Science 01/2010;
Source: DOAJ

ABSTRACT Problem statement: In warm-winter regions, the need for intervention of chemical means to break bud rest becomes a dominant factor for maintaining economic production of table grapes. However, the problem is more acute when farmers want to grow organic table grapes in the absence of environmentally-friendly budbreak promoters. Approach: This study aimed to evaluate the effect of a mix of naturally occurring Garlic Compounds (GC) in comparison to the conventional use of hydrogen cyanamide to promote budbreak and its effects on cluster quality in four table grape cultivars field-grown in hot region (Sonora Desert). Results: Four cultivars responded to GC, the vines bursting bud about 3 weeks after application. Quality of fruit from 4 cultivars treated with GC was excellent. Clusters weigh and berry sizes were larger than other treatments. Conclusion: Ability of GC to break dormancy in table grape grown in Sonora Desert has significant implications for organic table grape production in hot regions.

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    ABSTRACT: Problem statement: Cucurma alismatifolia is a member of the family Zingiberaceae. It is widely grown in Thailand and is also a highly demanded plant in Holland and Israel where it is grown for cut flowers and as pot plants. C. alismatifolia has a good potential as a new flowering crop in the floriculture industry. The development of new flowering pot plants is of interest to commercial growers, nurserymen as well as hobbyists. Noted for its showy inflorescence and unique foliage, this plant is long lasting and durable. It is an herbaceous with short fleshy rhizomes and tuberous roots, often with a dormancy period. Breaking of the bud dormancy on the rhizomes of C. alismatifolia is very important as to overcome the problem of eye bud emergence and to provide planting material throughout the year. There is little information on the optimum production environment and cultivation practices of this species. Approach: This study reported on the study of plant morphology, the effects of BAP and ethephon in breaking bud dormancy of C. alismatifolia and the effects of different shade levels on the growth and flowering of C. alismatifolia . Results: BAP at 100 mg L<SUP>-1</SUP> recorded the most number of eye buds appearance while ethephon at 750 mg L<SUP>-1</SUP> gave the most number of eye emergence. Data obtained shown that the optimum shade level for the production of C. alismatifolia potted plant was at 30%. Conclusion: For commercial production of C. alismatifolia as a cut flower, a shade level of 70% is highly recommended, as it exhibits a good characteristic for a cut flower at this shade level.
    American Journal of Agricultural and Biological Science. 01/2010;

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