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vol. 9, nr. 3 (2007)
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The effect of seed irradiation with laser and plant desiccation on yielding and quality features of white lupine seeds
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Janusz Podleśny
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Institute of Soil Science and Plant Cultivation, National Research Institute, ul. Czartoryskich 8, 24-100 Puławy
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vol. 9 (2007), nr. 3,
pp. 733-745
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abstract:
The research was conducted at the Institute of Soil Science and Plant Cultivation - National Research Institute in Puławy. The first row factor were two white lupine varieties: Bardo (traditional type) and Katon (indeteriminate type), and the second row factor - applied measures: A - harvest after natural maturation of plants, B - harvest of plants grown from seeds stimulated by laser light, C - harvest of plants after desiccation with Reglone 200 SL, and D - harvest after desiccation of plants with Harvade 250 SC. Seed irradiation was performed at Physics Department, University of Agriculture in Lublin, using a device for pre-sowing treatment of seeds with laser light. Seeds irradiation caused a reduction of water content in vegetative parts and seeds of plants grown from treated seeds. It can have an importance for improving harvest conditions of plants with long period of vegetation and for reduction of costs connected with second drying of seeds. Desiccation of plants with Reglone 200 SL and Harvade 250 SC considerably reduced water content in seeds. This treatment can be more useful for acceleration of plant drying than for water content reduction in seeds. The efficiency of both used chemicals was similar. Pre-sowing treatment of white lupine seeds with laser light had a significant effect on improving plant emergence and seeds yield enlargement. However the efficiency of used treatment was different at particular research years, which indicates a dependence of irradiation effect on weather conditions. The increase of seeds yield as a result of pre-sowing seeds irradiation in reference to self-determinate form of white lupine as well as traditional one was a result of greater number of pods per plant and lower losses of plants on unit area during vegetation. No unprofitable effect was observed of plant desiccation on yield size and formation of its structure features. Using of spray with Reglone 200 SL and Harvade 250 SC on plantation had no effect on protein and fat content in the seeds.
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keywords:
white lupine, desiccation, laser stimulation of seeds, maturity, development of plant, yielding
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original in:
Polish
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