Response to eight cycles of reciprocal recurrent selection in Kitale Synthetic 2, Ecuador 573 and their variety cross [Zea mays L. in Kenya]
Ochieng, J.A.W.
Response to eight cycles of reciprocal recurrent selection in Kitale Synthetic 2, Ecuador 573 and their variety cross [Zea mays L. in Kenya] Risposta a otto cicli di selezione ricorrente reciproca in Kitale Synthetic 2, Ecuador 573 e loro incrocio varietale [Zea mays L. in Kenya] - 1992 - Printed
2 tables; 21 ref. Summary (En) Peer-review: No - Open Access: No
Two maize (Zea mays L.) populations, Kitale Synthetic II and Ecuador 573, have undergone eight cycles of reciprocal recurrent selection at 10% selection intensity with grain yield as the major selection criterion. A study was conducted in the years 1983, 1984 and 1986 at several environments in Western Kenya to evaluate direct and indirect responses to selection in the two populations and their variety cross. Neither of the populations responded to selection for yield, but their variety cross was improved at a rate of 3.56% per cycle. Percent mid-parent heterosis for yield showed a significant linear increase (b = 3.804), presenting opportunity for further
English
0394-9257
Africa
Africa south of Sahara
Anglophone africa
Biological development
Biological properties
Breeding methods
Crop husbandry
East Africa
Gramineae
Plant developmental stages
Plant physiology
Progeny
Taxa
Zea
Yields
Plant breeding
93-095228
Response to eight cycles of reciprocal recurrent selection in Kitale Synthetic 2, Ecuador 573 and their variety cross [Zea mays L. in Kenya] Risposta a otto cicli di selezione ricorrente reciproca in Kitale Synthetic 2, Ecuador 573 e loro incrocio varietale [Zea mays L. in Kenya] - 1992 - Printed
2 tables; 21 ref. Summary (En) Peer-review: No - Open Access: No
Two maize (Zea mays L.) populations, Kitale Synthetic II and Ecuador 573, have undergone eight cycles of reciprocal recurrent selection at 10% selection intensity with grain yield as the major selection criterion. A study was conducted in the years 1983, 1984 and 1986 at several environments in Western Kenya to evaluate direct and indirect responses to selection in the two populations and their variety cross. Neither of the populations responded to selection for yield, but their variety cross was improved at a rate of 3.56% per cycle. Percent mid-parent heterosis for yield showed a significant linear increase (b = 3.804), presenting opportunity for further
English
0394-9257
Africa
Africa south of Sahara
Anglophone africa
Biological development
Biological properties
Breeding methods
Crop husbandry
East Africa
Gramineae
Plant developmental stages
Plant physiology
Progeny
Taxa
Zea
Yields
Plant breeding
93-095228