TY  - JA
AU  - Ochieng,J.A.W.
AU  - Kamidi,R.E.
TI  - Response to eight cycles of reciprocal recurrent selection in Kitale Synthetic 2, Ecuador 573 and their variety cross [Zea mays L. in Kenya]
SN  - 0394-9257
U1  - 93-095228 
PY  - 1992///
KW  - Africa
KW  - Africa south of Sahara
KW  - Anglophone africa
KW  - Biological development
KW  - Biological properties
KW  - Breeding methods
KW  - AGROVOC
KW  - Crop husbandry
KW  - East Africa
KW  - Gramineae
KW  - Plant developmental stages
KW  - Plant physiology
KW  - Progeny
KW  - Taxa
KW  - Zea
KW  - Yields
KW  - Plant breeding
N1  - 2 tables; 21 ref. Summary (En); Peer-review: No - Open Access: No
N2  - 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
T2  - Journal of Genetics and Breeding
ER  -