Total number
Full text
Total number
Full text
Number of local repositories
Full text
0223U000329,
0121U000052
,
15.01.00.07.F Theoretical substantiation of scientific bases of creation of initial material of ecologically-plastic hybrids of corn adapted to modern climatic conditions of cultivation
Bilonozhko Volodymyr Ya., Доктор сільськогосподарських наук
06-01-2023
Cherkasy State The Agricultural Experimental Station of National Scientific Center "Institute of Agriculture of National Academy of Agrarian Sciences of Ukraine"
During the research period, 230 combinations were crossed. The total volume of manual crossings and propagation by inbreeding is 6,000 cobs. Inbreeding of new lines I1 - I8, established on hybrids of different origins and different groups of maturity by inbreeding, was carried out. 115 best families I1-I8 were selected. As a result, 43 inbred lines were selected, which, according to indicators of productivity components (cob weight and length, number of rows of grains), significantly exceed standard samples. In 2022, the competitive nursery included four experimental variants (124 hybrids). As a result of research, 54.8% of hybrids exceeded the standards in their groups in yield. In the control nursery in 2022, 163 corn hybrids of different maturity groups were studied, according to the data analysis, 52.0% exceeded the standards. Most of the studied lines were characterized by high values of the effects of the general combining ability. The maximally high estimates of the effects of ZKZ were in the lines of ChK 269 (1.24); Cheka 278 (1.20); ChK 270 (1.09); ЧК 271 (1.07), ЧК 272 (1.05) and ЧК 275 (1.03). ChK lines 227/329 (1.33) were isolated according to the specific combining ability of SKZ; Cheka 228/329 (0.66); Chek 269 (0.45), Chek 278 (0.45). ChK 226/329 lines had low SCZ values (0.09); Cheka 229/329 (0.09); Cheka 235/317 (0.08); ChK 236/317 (0.09), while the line ChK 237/317 had a negative value (-0.01). It is recommended for use in the further selection process with the aim of obtaining new high-yielding hybrids of corn to involve in the tester crosses the lines ЧК 269, ЧК 270, ЧК 271, ЧК 275 and ЧК 278 with high values of the effects of general and specific combining ability.
Bilonozko Volodymyr Yakovych
Vynogradova Oksana Mykolayivna
Torbanyuk Mariia Viktorivna
2023-01-06
Updated: 2025-12-19
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