International Journal of Plant Breeding and Genetics
Year: 2007 | Volume: 1 | Issue: 2 | Page No.: 75-81
),
reflecting the yield potential per plant, ii) progeny standardized mean (
s-1), which evaluates genes contributing to stability of performance
and iii) progeny standardized selection differential {(s-)
s-1}, which evaluates genes that control responsiveness to inputs.
Performance of the lines at the typical dense stand of 2.4 plants m-2
in three greenhouse and open air trials was also tested. The two approaches
of entries crop yield potential differentiated entries in a similar way. Entries
crop yield potential estimated by the honeycomb methodology were found to be
consistent with their performance in dense stand. Exception existed for two
out of the 19 lines, attributable partly to genotype by year interaction. Results
were suggestive that crop yield potential estimated under very low density approximating
total absence of competition may effectively predict performance under the typical
crop production conditions, permitting application of honeycomb methodology
in the absence of competition across the entire generations of a breeding program
and exploitation of the following advantages: maximum phenotypic expression
and differentiation that facilitates identification of the superior genotypes,
erasure of the adverse impact of negative relationship between yielding and
competitive ability on selection effectiveness, avoidance of biased judgment
of crop yield potential in dense stand due to significant genotype by density
interactions. PDF Fulltext XML References Citation
How to cite this article
Ioannis I. Papadopoulos, Ioannis S. Tokatlidis, Efstathios G. Tamoutsidis, Metaxia Koutsika Sotiriou and S. Koutroubas, 2007. Crop Yield Potential Estimation under Too Low Density in Dry Bean Genotypes. International Journal of Plant Breeding and Genetics, 1: 75-81.
DOI: 10.3923/ijpbg.2007.75.81
URL: https://scialert.net/abstract/?doi=ijpbg.2007.75.81
DOI: 10.3923/ijpbg.2007.75.81
URL: https://scialert.net/abstract/?doi=ijpbg.2007.75.81
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