We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Genetic parameters and selection of Brachiaria decumbens hybrids for agronomic traits and resistance to spittlebugs.
- Authors
Mateus, Rogério Gonçalves; Lima Barrios, Sanzio Carvalho; do Valle, Cacilda Borges; Valério, José Raul; Vilela Torres, Fabrícia Zimermann; Martins, Lucas Bearari; do Amaral, Pedro Nelson Cesar
- Abstract
The objective of this work was to estimate genetic parameters for agronomic traits and resistance to spittlebugs in B. decumbens hybrids and to select the ones with best performance. For that, 324 hybrids were evaluated in field plots for agronomic traits and in the greenhouse for resistance to spittlebugs. Genetic variability amongst the hybrids was observed for all traits analyzed. The heritability estimates between genotypes means were higher than 0.52 for all agronomic traits and 0.98 and 0.99 for nymphal survival and nymphal period duration respectively. Hybrids with better performance than cultivar Basilisk for each individual trait were identified and also through a selection index combining all traits. Assigning weights to the different traits in the selection index did not significantly alter the rank for superior hybrids. Those were selected to continue on to the next phases of the breeding program.
- Subjects
BRACHIARIA decumbens; AGRONOMY; PLANT hybridization; CERCOPIDAE; GREENHOUSE plants
- Publication
Crop Breeding & Applied Biotechnology, 2015, Vol 15, Issue 4, p227
- ISSN
1518-7853
- Publication type
Article
- DOI
10.1590/1984-70332015v15n4a39