January 2019

Development and screening of cowpea recombinant inbred lines for seedling drought tolerance

The use of multiple traits for drought study affirms the complexity of drought tolerance in cowpea. Despite the availability of several traits for drought tolerance evaluation, the rapid screening technique used by many scientists for seedling drought in wooden boxes is the simplest method for screening large populations. The objective of this study was to select drought tolerant cowpea recombinant lines developed from...

Author(s): Alidu M. S., Asante I. K., Tongoona P., Ofori K., Danquah A. and   Padi F. K.  

January 2019

Evaluation of the parental and hybrid lines- Heterosis and other genetic parameters among Capsicum annuum genotypes and their hybrids

In most parts of the world pepper has become a popular spice that makes food hot in addition to its much needed nutrients of carotenoids and vitamins. This report has its objective to evaluate the parents and hybrid of three Nigerian pepper genotypes (Shombo, Tatase and Nsukka yellow pepper) for growth and yield; and to estimate their genetic parameters. Conventional breeding by hand pollination was adopted. The mean...

Author(s): Abu Ngozi E., Udoh O. E. and Uguru M. I.  

January 2019

Genetic action and potence ratio of maize in an 8×8 diallel cross growing under saline condition

Twenty-eight hybrids of Zea mays L. produced in 2015-16 from 8×8 half diallel mating design were evaluated along with their parents in 2016-2017 under saline condition to find out genetic action and potency ratio of some agronomic and yield contributing traits. Genetic action and potency ratio were analyzed following Hayman’s diallel analyses and Smith’s formula, respectively. Genetic parameter like...

Author(s): M.M. Rohman, S. H. Omy, S. Begum, M. A. Rahman, M. G. Hossain, M. M. Hoque and M. Amiruzzaman

January 2019

Anther-derived callus induction based on culture medium, myo-inositol, AgNO3 and Fe-EDTA in ‘Seolhyang’ strawberries

Haploid breeding is an effective method of shortening the breeding period of plants. In this study, to develop a haploid breeding technique, optimum conditions of the culture medium were investigated for anther-derived callus induction in the strawberry cultivar Seolhyang. The effects of the culture medium type, myo-inositol, auxin and cytokinin combination treatment, silver nitrate (AgNO3), and ferric...

Author(s): Haeyoung Na, Bong Seong Kim and Jungbeom Kim