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Pre-seed treatment Effects on Avocado （Persea americana L.） Seedlings Health and Growth before Side-Grafting in Ghana

引用

Journal of Agricultural Science and Technology 2011年第3期5卷 346-351页

作者： P. Y. Adjei B. Banful Y. A. Asante Department of Horticulture College of Agriculture attd Natural Resources Kwame Nkrumah University of Science and TechnologyKumasi Ghana

Studies were conducted to detennine the effects of hot water （50 ℃） and fungicide （contizeb ‘5＇） treatments on avocado seeds in terms of seed health, germination and seedling growth before side-grafting. The leathery coverings or seed coat were removed and either 1 cm or 1.5 cm of the narrow top of the seeds was removed before sowing. There were six treatments arranged in a randomized complete block and rephcated three times. In a six week period after germination when side grafting could be done, it was found out that the earliest germination came from the ＇no hot water or fungicide-treated＂ seeds cut at 1 cm but most seeds germinated from the fungicide-treated seeds at 1 cm cut. Most fungi including Fusarium andAspergillus spp found to either delay germination or reduce seedling vigour were minimized in number through the fungicide treatment compared to the hot water-treated seeds. Seedlings performance in terms of shoot extension and canopy development was significantly better in the fungicide-treated seeds than from either the hot water or the non-treated seeds. The study concluded that avocado seed treatment prior to sowing enhanced germination.

关键词： Fungi eradication hot water treatment fungicide treatment germination contaminants.

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