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Analysis and Interpretation of Factors Which Contribute to Efficiency of Nitrogen Utilization1
Interpretation and Use of Estimates of Heritability and Genetic Variances in Plant Breeding1
Estimates of genetic variance and heritability provide useful guidelines for answering many questions which arise in a plant breeding program. In this paper we have attempted to (a) delineate… Expand
The Relationship of Heterosis and Genetic Divergence in Maize.
HETEROSIS in maize appears to increase with increased genetic divergence of the parent populations over a rather wide range of diversity (MOLL, SAL- HUANA and ROBINSON 1962). It does not… Expand
Heterosis and Genetic Diversity in Variety Crosses of Maize 1
Our limited understanding of the cause of heterosis does not provide a basis for deducing the relative amount of heterosis expected in crosses of parents with varying degrees of genetic diversity.… Expand
Effects of Population Density upon Agronomic Traits Associated with Genetic Increases in Yield of Zea mays L. 1
Sixteen Cycles of Recurrent Full-Sib Family Selection for Grain Weight in Two Maize Populations
- R. Moll
- 1 July 1991
Full-sib family selection for greater grain weight per plant is expected to increase the frequency of favorable alleles for this trait in random-mating populations of maize (Zea mays L.). This study… Expand
Estimates of Genetic Variances and Level of Dominance in Maize.
HE dominant favorable gene hypothesis, first proposed by BRUCE (1910), T attributes heterosis to accumulated effects of loci at which the more favorable allele contributed by one parent is manifest… Expand
Root Distribution of Corn: The Effect of Nitrogen Fertilization
Root growth and development can affect N uptake. In turn, N additions may affect corn (Zea mays L.) root growth. Prolific (multiple ear) hybrids may need a more active root system to satisfy ear… Expand
Allozyme Frequency Changes Associated with Selection for Increased Grain Yield in Maize (ZEA MAYS L.).
Frequency changes of alleles at eight enzyme loci were monitored in four long-term maize selection experiments. The results indicate that changes in frequencies of the alleles at these loci are… Expand