Characterization and selection of interspecific hybrids of Brachiaria decumbens for seed production in Campo Grande - MS

AUTOR(ES)

Monteiro, Lenise Castilho, Verzignassi, Jaqueline Rosemeire, Barrios, Sanzio Carvalho Lima, Valle, Cacilda Borges do, Fernandes, Celso Dornelas, Benteo, Gleiciane de Lima, Libório, Cláudia Barrios de

FONTE

Crop Breed. Appl. Biotechnol.

DATA DE PUBLICAÇÃO

2016-09

RESUMO

Abstract The breeding program Brachiaria developed by Embrapa Beef Cattle provides studies to obtain forage with agronomic characters desired by farmers. In this regard, in 2013 and 2014, a study was carried out in order to select the best Brachiaria decumbens intraspecific hybrids, which are superior in relation to production, forage nutritional value, and resistance to spittlebugs. Estimates of genetic parameters and gains with selection were carried out. It was found that there was significant variability between genotypes for all characters. Gain with selection (GS%) ranged from 12 to 324%, and the highest percentage was found for weight of pure seeds (PS) of seed collectors of the second harvest. For reproductive tillers (RT), C001 and R091 hybrids had better performance than the control, and this character may be considered as a parameter to estimate production of pure seeds before flowering starts.

Documentos Relacionados

• Genetic parameters and predicted gains with selection of interspecific hybrids of Paspalum for seed production
• Selection gains for bunch production in interspecific hybrids between “caiaué” and oil palm
• Estimate of genetic parameters in Brachiaria decumbens hybrids
• Characterization of diploid Arachis interspecific hybrids for pest resistance
• Meiotic arrest compromises pollen fertility in an interspecific hybrid between Brachiaria ruziziensis x Brachiaria decumbens (Poaceae: paniceae)