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- Title
NEW CHARACTERS OF EARLY MAIZE COBS.
- Authors
Nicolaie, Ionescu; Cristina, Nicolaie Mariana; Magdalena, Podea Maria; Daniela, Badea Oana; Cristina, Ghiorghe; Maria, Popescu Diana; Robert, Gheorghe Marian; Cătălin, Dinuță Ilie
- Abstract
The current study of the variability (Fasoula & Fasoula, 2002; Duvick & Cassman, 2009) of the main morphological characters (Tolleaar et al., 2004), could offer some new directions in the improvement of maize (Tolkanidis & Koutroubas, 2004; Haș et al., 2010). With a wide genetic diversity (Schnable et al., 2009), the plant is closely related to growing conditions (Doebley, 2004; Verheye, 2010). In the present study, two early maize hybrids were compared: SV.255-18 and Viking, which are recommended for their performance in certain cultural conditions. In both hybrids some new directions have been found, these being recently improved, namely by improved morphological characters. In the comparison between the two hybrids, the cobs had an average length of 17 cm at SV.255-18 and 19 cm at Viking. In the same order the thickness of the cob was 3.7 cm to 4.2 cm and weighted between 128 g and 198 g. The number of grains on the cob was 432 in SV.255-18 and 484 in Viking, they weighted 107 g to 165 g, and the mass of one thousand grains was 252 g to 342 g. The grain percent of both cobs was 83-84%. The grains of these hybrids were 9.8 to 12.1 mm long, 7.9 to 8.9 mm wide and 4.6 to 4.2 mm thick. Positive correlations were obtained between the analyzed characters, more accentuated at SV.255-18. Grains percent was positively correlated with most characters in the first hybrid- SV.255-18, and equally negatively in the second hybrid- Viking, grain thickness was positively correlated with the other traits in the first hybrid, being mostly negative in the second hybrid. These two cultivated hybrids have demonstrated good adaptability to existing conditions.
- Subjects
CORN; GENETIC variation
- Publication
Analele Universitatii din Craiova. Seria Biologie, Horticultura, Tehnologia Prelucrarii Produselor Agricole, Ingineria Mediului, 2021, Vol 26, p269
- ISSN
1453-1275
- Publication type
Article
- DOI
10.52846/bhfe.26.2021.38