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vol. 15, nr. 1 (2010)
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Influence of microelements (B, Mo) and laser stimulation on sowing value of red clover seeds
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Marek Æwintal, Piotr Sowa, Sylwester Goliasz
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Department of Detailed Plant Cultivation, University of Life Sciences in Lublin ul. Akademicka 15, 20-950 Lublin |
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vol. 15 (2010), nr. 1,
pp. 65-76
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abstract:
A laboratory evaluation of the sowing value of meadow red clover (Dajana cv.) was carried out in 2005-2006. The experiment was performed by means of complete randomisation in 4 replications and included two factors: 1. foliar nutrition of seeding red clover with boron and molybdenum at the following rates: 0; B-0.3; Mo-0.01; B-0.3 + Mo-0.01; B-0.45; Mo-0.015; B-0.45 + Mo-0.015 kg ha-1; 2. seed irradiation before germination using divergent He-Ne laser beam with surface power densities of 0, 4, and 8 mW cm-2 (R0, R4, R8), applied once, twice and 4 fold (x1, x2, x4). The germination energy shares of normally and abnormally germinating seeds, percentage of hard seeds, as well as of seeds infected with fungal diseases, along with their germination ability were determined. It was found that boron at the rate of 0.3 kg ha-1 and molybdenum at rates of 0.01 and 0.015 kg ha-1 significantly increased the germination energy and capacity of red clover, as well as the share of normally germinating seeds. Whereas, it considerably decreased the percentage of abnormally germinating ones. Molybdenum, regardless of the dose, significantly decreased the share of seeds infected by fungal diseases; boron had no considerable effect on that feature, while combined application of boron with molybdenum elevated that percentage. Seed stimulation with laser, mainly at higher doses, significantly increased the germination energy of red clover and the share of normally germinating seeds, while decreasing the percentage of hard seeds. It had no significant influence on germinating ability.
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keywords:
red clover, seeds, laser, microelements
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original in:
Polish
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