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| Title : |
Population improvement of yellow and white maize through reciprocal recurrent selection |
| Material Type: |
printed text |
| Authors: |
Koirala, K.B., Editor ; Gurung D.B. ; B Bhandari, Author ; J.B Chhetri, Author |
| Pagination: |
130-154 p. |
| Keywords: |
Maize ; Population reciprocal recurrent selection |
| Abstract: |
Improvement through recurrent selection is one of the best methods to increase the
frequency of favorable alleles, improve cross-bred performance and tolerance to inbreeding
of the maize population. Population improvement in any maize breeding program is a must
to develop hybrids, composites, synthetics and inbred lines regularly and simultaneously. In
case of yellow maize, in 2068/69, 48 best plants from each heterotic group A and B were
selected and selfed. In case of white maize, in 2068/69, 13 best plants of Manakamana-3
and 44 plants in Deuti were selected and selfed. In 2069170, each S 1 was planted in a
separate row. Pollen grains of opposite heterotic group were bulked and crossed to opposite
heterotic group and vice versa. Similarly, pollen grains of 13 selfed lines of Deuti were
bulked and crossed to 44 selfed lines of Manakamana-3 and vice versa. Besides reciprocal
crosses, in each line 3 plants were selected to self-pollinate it. Crosses of Heterotic Group
A, B, Manakamana-3 and Deuti will be evaluated in the next season. |
Population improvement of yellow and white maize through reciprocal recurrent selection [printed text] / Koirala, K.B., Editor ; Gurung D.B. ; B Bhandari, Author ; J.B Chhetri, Author . - [s.d.] . - 130-154 p. | Keywords: |
Maize ; Population reciprocal recurrent selection |
| Abstract: |
Improvement through recurrent selection is one of the best methods to increase the
frequency of favorable alleles, improve cross-bred performance and tolerance to inbreeding
of the maize population. Population improvement in any maize breeding program is a must
to develop hybrids, composites, synthetics and inbred lines regularly and simultaneously. In
case of yellow maize, in 2068/69, 48 best plants from each heterotic group A and B were
selected and selfed. In case of white maize, in 2068/69, 13 best plants of Manakamana-3
and 44 plants in Deuti were selected and selfed. In 2069170, each S 1 was planted in a
separate row. Pollen grains of opposite heterotic group were bulked and crossed to opposite
heterotic group and vice versa. Similarly, pollen grains of 13 selfed lines of Deuti were
bulked and crossed to 44 selfed lines of Manakamana-3 and vice versa. Besides reciprocal
crosses, in each line 3 plants were selected to self-pollinate it. Crosses of Heterotic Group
A, B, Manakamana-3 and Deuti will be evaluated in the next season. |
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Population improvement of yellow and white maize through reciprocal recurrent selection