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vol. 6, nr. 3 (2005)
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Preliminary characterization of plants of spring rape hybrids
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Bogusław Szot, Tadeusz Rudko
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Institute of Agrophysics, Polish Acedamy of Sciences, ul. Doświadczalna 4, 20-290 Lublin |
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vol. 6 (2005), nr. 3,
pp. 827-834
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abstract:
The objective of the study was the estimation and comparison of the basic morpho-logical-biometric features of plants that affect their yields, and the characterization of pods. The varietal plot experiment with spring rape involved two hybrid cultivars, Margo and Jura and, for comparative purposes, one standard variety – Star. Apart from the morphological-biometric features of plants, the susceptibility of pods to cracking and seed shedding were determined under field conditions. The effect of heterosis was observed in the first generation of the hybrid plants. The genotype change of rape plants resulted in an increase in seed crop yield, by from 22.2% to 25.8% as compared to the standard variety. The hybrid cultivars had better developed such crop-affecting features as the number of pods per plant and the number of ramifications per plant. The hybrid Margo had the highest susceptibility of pods to cracking, and both hybrids shed distinctly fewer seeds as compared to the Star variety.
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keywords:
spring rape, hybrids, characterization of plants and pods
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original in:
Polish
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