Investigation on Moringa peregerina seedling production(Propagation) methods
2011
Hajebi, Abdolhamid
Moringa peregrina is one of the valuable plant species of the Saharo- Sindian region in Iran that it's habitat features and other characteristics of this plant in Iran is more or less unknown. Because of it's high tolerance to the harsh environmental conditions, Moringa peregrina is well established in saharo-sindian environments and tolerate this harsh conditions, moreover this species shows magnificent role in the soil conservation, sand dune establishment, herbal medicines, etc. Therefore to conserve this species and it's habitats, artificial reproduction and increasing it's distributed lands seems to be necessary. This study is carried out in two subsequent phase: A. seedling production, using completely random design with three replications. In this stage to achieve the best method of seed dormancy breaking following soaking treatments are used: 1. untreated, 2. warm water (70C°). 3. Potassium nitrate (0/4 percent) for 48 hours. 4. Sodium hypochlorite (50 percent) for 10 minutes. 5. Sulfuric acid (98%) for five minutes. 6. Gibberellic acid (500ppm) for 48 hours. B- Sapling productions: this study is carried out in three separate factorial experiments, in completely random design with three replications. 1. in the first experiment, first factor was normal twigs originated sapling thickness in two narrow and thick levels and the second factor was auxin concentrations in four levels including 5000, 10000, 15000, and 20000 ppm, 2. In the second experiment, first factor was root originated twig sapling thickness in two narrow and thick levels and the second factor was auxin concentrations in four levels including 5000, 10000, 15000, and 20000 ppm. Soaking time was 10 seconds for both above mentioned experiments. 3. Sapling production using leaved twig tips first factor was time in two levels (10 and 20s.) and second factor was auxin concentrations in four levels including 5000, 10000, 15000, and 20000 ppm, The results indicates that the effects of the different treatments on the germination percent was very significant. The mean comparison between different treatments at 1% significant level indicates that from germination percent point of view, the treatments divided into 3 homogenus subsets, and maximum and minimum percents was belong to untreated with 92.85% and sulphuric acid with 0% respectively.
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