Nonhomeotic meristic flower mutants in Phacelia dubia

Article Abstract:

A study of two meristic mutations in Phacelia dubia (L.) Trel. shows that one causes the development of one additional sepal, petal and stamen, while the other produces triseriate pistil with trifurcating style and a tricarpellate ovary. The ovary has three functional placentae and show tripartite dehiscence. This gynoecium phenotype is controlled by recessive alleles located at two nuclear encoded loci. The gynoecium phenotype is similar to that found in Polemoniaceae, which indicates that simple genetic variation is involved in the variation of gynoecium phenotype in different families.

Research, Observations, Mutation (Biology), Mutation, Flowers

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Will comparable worth reduce race-based wage discrimination?

Article Abstract:

Empirical evidence shows that adoption of comparable worth or pay equity can significantly reduce wage discrimination based on race and gender. A study of the impact of gender and racial composition of specific jobs on income confirms the existence of wage discrimination against women and minorities and highlights the urgency of emphasizing the structural and cultural aspects of unequal wages for work of comparable value. This finding rejects the human capital theory which attributes low pay to the individual characteristics of workers.

Social aspects, Compensation and benefits, Women, Minorities, Employment discrimination, Income distribution, Pay equity

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The effect of catastrophic risk on forest investment decisions

Article Abstract:

A study was conducted on the effect of catastrophic risk on forest investment decisions using a forest-level model where the output price is specified to follow a stochastic process. A Poisson jump process was also incorporated to reflect the occurrence of catastrophic events. The results indicate that the presence of catastrophic risk always leads to a reduced production value but a higher investment threshold for a forestry project.

FORESTRY, Forestry and Logging, Evaluation, Economic aspects, Investments, Forests and forestry, Forests, Disasters

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