Yielding ability of different groups of maize hybrids
Henryk Cygert
smolice@hrsmolice.plHodowla Roślin Smolice Sp. z o.o. (Poland)
Józef Adamaczyk
Hodowla Roślin Smolice Sp. z o.o. (Poland)
Abstract
The aim of the study was to compare all possible formulas of maize hybrids obtained from the same inbred lines which had already been used to develop commercial hybrids. The experimental material consisted of 4 commercial hybrids: Blask, Grom, Wiarus, Wilga and 17 experimental hybrids obtained from the same or related lines. The material was divided into the following three groups: 1) commercial SC hybrids Blask and Grom and 7 related experimental hybrids, 2) commercial TC hybrid Wiarus and 8 related experimental hybrids, 3) commercial TC hybrid Wilga and 2 related experimental hybrids. The whole set of 21 hybrids was evaluated in 2003 and 2004 in grain trials at 3 locations. No hybrid was found to be better than the commercial hybrid Blask in the first group, but there were 3 experimental hybrids with grain yield comparable to the hybrid Grom. In the second set no significant differences among hybrids were found, although one hybrid was slightly better both in grain yield and dry matter content than the commercial hybrid Wiarus. As a modified three-way cross (MTC) it could be a handy and useful tool in seed production. In the third group neither of the single cross (SC) hybrids did exceed in yielding the commercial hybrid Wilga.
Keywords:
maize, inbred lines, yielding ability, hybrid typesReferences
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Authors
Józef AdamaczykHodowla Roślin Smolice Sp. z o.o. Poland
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