Nearly 1/3 of all cacti species in the world are at risk of extinction because of human impacts. In Brazil, Cactaceae is among the 10 most endangered families of national flora, making conservation measures essential for this family. In this paper, we document the species preserved in the ex situ collection at the Guimarães Duque Cactarium (CAGD) located in the National Institute of Semiarid, Paraíba state, Brazil. The collection consists of 158 species and 1013 specimens, including mostly Cactaceae and succulent representatives of eight other botanical families. The cacti collection covers 952 specimens belonging to 123 species and 36 genera. Of this total, 104 species are native to Brazil and 19 are exotic species from nine countries. The CAGD collection includes representatives from several phytogeographic domains of the country, highlighting endemic and threatened cacti species occurring in the Caatinga. 70% (N = 83) of the cacti species recorded in the Brazilian Semiarid region are represented in the CAGD collection. Furthermore, in the collection, there are cacti species classified with different threat categories (Near threatened, Vulnerable, Endangered and Critically endangered), with 21 species classified according to MMA/2014 list and 35 species according to
O uso de sistemas hidropônicos por agricultores familiares do semiárido paraibano permite uma produção continuada de hortaliças frente às limitações hídricas, típico desta região, contudo, o difícil acesso e o alto custo dos fertilizantes minerais é um fator limitante desta prática. Neste sentido, objetivou-se avaliar o potencial do uso de biofertilizante anaeróbio bovino na substituição dos fertilizantes minerais, no cultivo de alface do grupo crespa cv. Cristina. O trabalho foi conduzido em casa de vegetação, instalada no Instituto Federal da Paraíba, Campus Sousa. Avaliaram-se quatro doses fertilizantes minerais mais biofertilizantes: Bio+0%; Bio+25%; Bio+50%, Bio+75% com quatro repetições, em blocos casualizados. Foram avaliadas as variáveis massas de matérias secas das folhas e total, o número total de folhas, área foliar e produtividade. A redução das doses de fertilizantes minerais comprometeu o crescimento e consequentemente a produção de alface, onde a máxima produção da parte comercial, foi de 43,0 g planta ̵¹, sendo obtida com o tratamento de 75% da combinação das doses de fertilizantes minerais mais biofertilizante.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.