Título:	Evaluation of six nopal (Opuntia spp.) varieties for fodder production in the semi-arid Northeast, Brazil.
Autoria:	ALBUQUERQUE, S. G. de SANTOS, D. C. dos
Afiliação:	SEVERINO GONZAGA DE ALBUQUERQUE, CPATSA DJALMA C. DOS SANTOS, IPA.
Ano de publicação:	2004
Referência:	In: CONGRESO NACIONAL, 10. CONGRESO INTERNACIONAL SOBRE CONOCIMIENTO Y APROVECHAMIENTO DEL NOPAL Y OTRAS CACTACEAS DE VALOR ECONÓMICO, 8. INTERNATIONAL CONGRESS ON CACTUS PEAR AND COCHINEAL, 5., 2004, Chapingo. Memorias... Chapingo: Universidad Autonoma Chapingo, 2004.
Conteúdo:	The main problems associated with production of fodder nopal in the Sertão region, Semi-arid Northeast, Brazil, are poor soils, high minimum temperature (above 20.5o C), and the armored scale insect (Diaspis echinocacti - Bouchè). A field trial was established in Petrolina, State of Pernambuco ( average rainfall 552.2 mm, 80% available from December to April) in April 2000. Six varieties were tested: three local varieties, ?Gigante?, the most cultivated, ?Redonda? (both Opuntia ficus-indica) and ?Doce? (Nopalea cochenillifera); the Clone IPA-20, furnished by IPA, a local research institution; two varieties provided by the Universidad. Autonoma de Chapingo, Mexico, COPENA F1 and COPENA V1. The experimental design was a CRB , with three replications. The plots had 16 m2 (four rows with eight plants/row) planting density was 20.000, plants/ha, for evaluation, only six plants of each central line were considered Manure was applied on biannual basis, at the rate of 2.86 kg/m. Weeding was performed manually. After four years (May 2004), the first harvest was done, collecting all fresh material except the basal cladode and the first layer of pads.. Annual fresh matter (FM) production was calculated dividing total yield by four. Mean production was 65.36 ± 22.99 ton FM/ha/year (CV = 35.17%). Varieties yields were: ?Gigante? nopal, 103.80 ton; ?Redonda? nopal, 78.04 ton; COPENA F1, 77.54 ton; Clone IPA-20, 74.15 ton; COPENA V1, 34.19 ton; ?Doce? nopal, 24.40 ton. ?Gigante? nopal was significantly superior (P<0.05) to the two last varieties, and ?Doce? nopal was inferior to all varieties. Height, longitudinal and transversal canopy diameters were, respectively: ?Gigante? nopal, 1.54, 1.09 and 1.08 m; ?Redonda? nopal, 1.07, 1.07 and 0.98 m; COPENA F1, 1.73, 1.08 and 0.90 m; Clone IPA-20, 1.38, 1.11 and 0.99 m; COPENA V1, 1.28, 0.91, 0.76 m; ?Doce? nopal, 1.06, 1.07, and 0.99 m. Other data that, such as, protein and fiber levels, might indicate that highest production does not assure the best variety for the region. COPENA F1 having shorter canopy diameter, in comparison to ?Gigante? nopal (0.90 vs. 1.08 m) would make it more s
Thesagro:	Palma Forrageira Produção Variedade
NAL Thesaurus:	Opuntia
Palavras-chave:	Opuntia spp Gigante Nepal Região semi-árida
Tipo do material:	Artigo em anais e proceedings
Acesso:	openAccess
Aparece nas coleções:	Artigo em anais de congresso (CPATSA)