Seed germination and seedling growth of the Polish soybean (Glycine max (L.) Merr.) cultivars in drought conditions
Sławomir Michałek
dziekanat.agbioinz@up.lublin.plKatedra Fizjologii Roślin, Akademia Rolnicza w Lublinie (Poland)
Edward Borowski
Katedra Fizjologii Roślin, Akademia Rolnicza w Lublinie (Poland)
Abstract
Germination of seven Polish soybean cultivars was analysed in laboratory conditions. The varieties (Aldana, Jutro, Polan, Progres, Mazowia, Gaj, Nawiko) were tested at the water potentials 0,0; -0,20; -0,40; -0,65 and -0,90 MPa, developed by polyethylene glycol (PEG-8000). Besides, growth of the soybean cultivars was examined in the Hoagland's solution at the water potential -0,5 Mpa, obtained by addition of PEG. The received results showed, that decline of water potential in a solution significantly reduced the number of germinated seeds, the speed of their germination as well as mass increment of shoot. Proper germination of soybean seeds was possible at water potential from 0,0 to -0,4 MPa. Low water potential in the nutrient medium slowed down also the growth of soybean stem, as well as increment of fresh and dry mass in shoots and roots of plants. However, conditions of simulated drought influenced to a greater extent the germination of seeds than the growth of plants. According to the results on germination and seedling growth Nawiko, Mazowia and Progres showed high level of drought resistance. The Gaj cultivar was out to be the least resistant.
Keywords:
cultivars, germination, growth, soybean, simulated droughtReferences
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Authors
Sławomir Michałekdziekanat.agbioinz@up.lublin.pl
Katedra Fizjologii Roślin, Akademia Rolnicza w Lublinie Poland
Authors
Edward BorowskiKatedra Fizjologii Roślin, Akademia Rolnicza w Lublinie Poland
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Copyright (c) 2002 Sławomir Michałek, Edward Borowski
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