Methods for Assessing Pollen Viability in Eggplant under High Temperatures

Methods for Assessing Pollen Viability in Eggplant under High Temperatures

In Northeastern Brazil, eggplant production is drastically reduced, especially when the high temperatures during flowering and fruiting of the eggplant for a prolonged period, makes pollen grains unfeasible, prevents full fertilization, results in defective fruits, reduces the fruit fixation rate, number of fruits and yield per plant. In this regard, the assessment of pollen viability under such conditions becomes of fundamental importance and can be used as an auxiliary trait in the selection processes of tolerant genotypes. This book chapter addresses the aspects to be considered when choosing and implementing the pollen viability assessment methodologies currently described for use on eggplants grown under high temperatures and their associations with the traits known to influence: fruit fixation rate, number of fruits and production per plant. There is no universal methodology for use in eggplant; but, under high temperatures the use of Carmine Acetic, Alexander stain and the germination of pollen grains in vitro proved to be efficient and with a high and positive genetic correlation with the traits associated with tolerance; they are easy to perform and inexpensive for pollens extracted from flowers in the field or greenhouse

Author (s) Details

Prof. Dr. Ricardo de Normandes Valadares
Agrarian and Environmental Sciences Center, Federal University of Maranhão (UFMA), Chapadinha, MA, Brazil

Lilian Bonfim de Lima
Department of Agronomy, Federal Rural University of Pernambuco (UFRPE), Recife, PE, Brazil.

Danieli Andrade Nóbrega
Department of Agronomy, Federal Rural University of Pernambuco (UFRPE), Recife, PE, Brazil.

Jordana Antônia dos Santos Silva
Department of Agronomy, Federal Rural University of Pernambuco (UFRPE), Recife, PE, Brazil.

Prof. Dr. Adônis Queiroz Mendes
Department of Agriculture, Federal Institute of Pernambuco (IFPE), Vitória de Santo Antão, Brazil

View Book :- http://bp.bookpi.org/index.php/bpi/catalog/book/168

Editor 251News

leave a comment

Create Account



Log In Your Account