Banca de DEFESA: GÉSSICA SOLANNA CALADO SOARES

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : GÉSSICA SOLANNA CALADO SOARES
DATE: 24/05/2022
TIME: 09:00
LOCAL: DEPARTAMENTO DE ZOOTECNIA
TITLE:

SELECTION OF CACTUS PEAR PROGENES RESISTANT TO CARMINE COCHINEAL

KEY WORDS:

cactus, IPA-Sertânia, Ear African Elephant, xerophyll.

PAGES: 97
BIG AREA: Ciências Agrárias
AREA: Zootecnia
SUBÁREA: Pastagem e Forragicultura
SPECIALTY: Avaliação, Produção e Conservação de Forragens
SUMMARY:

Cactaceae are considered the main food alternative for ruminant animals during the long periods of forage shortages in the Brazilian semiarid region, since, for the edaphoclimatic conditions of this region, the importance of water present in the raw material should be highlighted. The selection of new forage cactus cultivars has great relevance, especially in the agreste and sertão, due to the low purchasing power of most producers, in addition, carmine mealybug has been hindering its cultivation in the region. Thus, new progenies resistant to the insect were identified, however, studies still need to be carried out in an attempt to select the best “resistant” progenies. Given this situation, the objective is to evaluate the morphophysiological, productive, and chemical-bromatological composition of forage cactus progenies (Nopalea cochenillifera Salm-Dyck and Opuntia undulata Griffithis). Two independent experiments were carried out at the Instituto Agronômico de Pernambuco (IPA) in the municipalities of Arcoverde (I) and Caruaru (II). A completely randomized design was used, with six and ten replications in experiments I and II, respectively. The experimental treatments consisted of 23 IPA-Sertânia cactus progenies (experiment I) and 12 African elephant ear progenies (experiment II), which came from a pre-selection of genotype crossing carried out at these stations. Experiment I was implemented in January 2019, with a spacing of 1.2 x 0.4 m, and experiment II was implemented in March 2018, with a spacing of 1.5 x 0.5 m. In both experiments, the useful area was represented by a plant. Productive, morphophysiological, and chemical-bromatological characteristics were analyzed for two years. The data were submitted for analysis of variance and the means were compared by the Tukey test at 5% of significance. It was concluded that there is little variation in chemical composition and carbohydrate fractioning among IPA Sertânia (Nopalea cochenillifera Salm-Dyck) progenies. African Elephant Ear palm progenies show high in vitro dry matter digestibility. P9 is the most promising for the nutritional value in relation to the other progenies.

BANKING MEMBERS:
Presidente - 2346742 - ALEXANDRE CARNEIRO LEAO DE MELLO
Interno - 3514546 - MARCIO VIEIRA DA CUNHA
Interna - 6384968 - ANTONIA SHERLANEA CHAVES VERAS
Externo ao Programa - 2440132 - AIRON APARECIDO SILVA DE MELO
Externa à Instituição - MARIA DA CONCEICAO SILVA - IPA