I.F.S. Gerhardt

Intraspecific variability of popcorn S7 lines for phosphorus efficiency in the soil

• I.F.S. Gerhardt
• A.T. Amaral Júnior
• L.J.M. Guimarães
• A. Santos
• S.H. Kamphorst
• V.J. Lima
• F.M. Poblete
• G.O. Myers

The expansion of agriculture, coupled with the need for sustainable cropping, is one of the greatest challenges of the scientific community working on the generation of new cultivars adapted to abiotic stress conditions. The aim of this study was to evaluate the variability of popcorn lines as to responsiveness and efficiency in phosphorus use, as a first step towar.. Read More»

Genet. Mol. Res. 16(3):

Proposal of a super trait for the optimum selection of popcorn progenies based on path analysis

A.T. do Amaral Júnior, A. dos Santos, I.F.S. Gerhardt, R.N.F. Kurosawa, N.F. Moreira, M.G. Pereira, G. de A. Gravina and F.H. de L. Silva

A challenge faced by popcorn breeding programs is the existence of a negative correlation between the two main traits, popping expansion and yield, which hinders simultaneous gains. The objective of this study was to investigate the use of a new variable or super trait, which favors the reliable selection of superior progenies. The super trait ‘expanded popcor.. Read More»

Genet. Mol. Res. 15(4): gmr15049309

DOI: 10.4238/gmr15049309

Genetic variability affecting Exserohilum turcicum resistance in popcorn lines grown under high and low phosphorus conditions

A.T. Amaral Jr., R.M. Ribeiro, P.H.D. Santos, T.P.S. Poltronieri, J.M.S. Vivas, I.F.S. Gerhardt, B.M. Carvalho, C.S. Freitas and S.B. Miranda

Northern leaf blight (NLB), caused by Exserohilum turcicum, is one of the main foliar diseases that affect popcorn culture. Farmers use many control measures to minimize damage caused by this disease, among which, the use of cultivars with genetic resistance is the most effective and economical. The aim of this study was to investigate genetic variability influencin.. Read More»

Genet. Mol. Res. 15(4): gmr15049399

DOI: 10.4238/gmr15049399