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Tillers induction in Bactris gasipaes var. gasipaes seedlings
Mossanek, Ernani Augusto Ochekoski; Wendling, Ivar; Koehler, Henrique Soares; Zuffellato-Ribas, Katia ChristinaBactris gasipaes produces heart-of-palm. Peach palm is a perennial crop that has a tillering capacity, being an alternative to illegal extraction. There is a lack of studies about vegetative propagation technics for this species. The present study aimed to analyze different tillering induction methods in Bactris gasipaes var. gasipaes seedlings in four different seasons. The treatments were: 1) stem bending; 2)...
Sprouts production and rooting of Piptocarpha angustifolia minicuttings
Ferriani, Aurea Portes; Zuffellato-Ribas, Katia Christina; Helm, Cristiane Vieira; Boza, Adriana; Wendling, Ivar; Koehler, Henrique SoaresPiptocarpha angustifolia Dusén ex. Malme (Asteraceae) is a brazilian native and pioneer tree species, occuring in Araucária Forest, with potential to ecosystem restorarion and introduction in forest, agriculture and pasture systems. Its propagation by seed presents irregular production and low number of feasible seeds while vegetative propagation by cutting of mature plants with semihardwood shoots didn’t prese...
Interactions Between Indolebutyric Acid, Uniconazol and Two Types of Growing Me...
Pimenta, Alex Caetano; Zuffellato-Ribas, Katia Christina; Oliveira, Brás Heleno de; Carpanezzi, Antonio Aparecido; Koehler, Henrique SoaresPau-de-leite (Sapium glandulatum (Vell.) Pax., Euphorbiaceae) is a native tree of several Brazilian biomes, with great interest for rehabilitation of degraded ecosystems due to its rusticity and intense seed dispersal by birds. However, its sexual propagation is difficult because the majority of the flowers are male and the percentage of germination of the seeds is very low. Considering the propagation diff...
LiDAR: principles and forestry applications
Giongo, Marcos; Koehler, Henrique Soares; Machado, Sebastião do Amaral; Kirchner, Flavio Felipe; Marchetti, MarcoOne of the first areas investigated for commercial applications of LiDAR was for forest applications. Topography and forest coverage are of extreme importance for forest resources managers. Accurate information on trees height and density, besides being fundamental for planning, are hard to obtain by conventional methods. Laser scanning technology, as opposed to satellite images and aerial photographs, can conc...
Maize cultivars and plant population affecting green ear yield - DOI: 10.4025/a...
Vieira, Marcelo de Andrade; Camargo, Mariana Krusquevis; Daros, Edelclaiton; Zagonel, Jeferson; Koehler, Henrique SoaresThe producers of green corn aim at the professionalization of their production, providing high-quality products and in sufficient quantity to supply the most demanding markets. To achieve this goal, management techniques must be adopted to provide high yields without negatively affecting commercial traits. Aiming at evaluate the aptitude of cultivars and plant population effect on green corn yield, an assay was...
Flowering induction of Hemerocallis hybrida cv. Graziela Barroso by gibberellic...
Althaus-Ottmann, Michelle Melissa; Borsatto, Ricardo Serra; Zuffellato-Ribas, Katia Christina; Koehler, Henrique Soares; Fonte, Nilce Nazareno daHemerocallis spp. production is important in Santa Catarina State. The flowers have a great use in landscaping, and bloom in spring. This work had the aim of studying the flower induction in Hemerocallis hybrida cv Graziela Barroso by different applications of gibberellic acid (0 mgL-1 control; 15 mgL-1; 30 mgL-1 GA3) during summer, autumn and winter. A completely randomized design was used. Treatments represen...
Germination of Aechmea nudicaulis (L.) Griseb. (Bromeliaceae) in different subs...
Anacleto, Adilson; Negrelle, Raquel Rejane Bonato; Koehler, Henrique SoaresFor this study, the germination of Aechmea nudicaulis (L.) Griseb. (Bromeliaceae) was evaluated. Production attempts from seeds for this species have taken place in an empirical form, using substrate based on xaxim (Dicksonia sellowiana Hook.) powder, the use of which is currently restricted, as it is an endangered species. Five easily accessible alternative substratum were tested: worm humus, sand, coconut she...
Vegetative propagation by cuttings of azaléia tree (Rhododendron thomsonii HOOK...
Ferriani, Aurea Portes; Bortolini, Michele Fernanda; Zuffellato-Ribas, Katia Christina; Koehler, Henrique SoaresRhododendron thomsonii (Ericaceae) is a chinese ornamental hardwood species. The seeds are used just for hybrids production, therefore, vegetative propagation is an appropriate way for large scale plant production. The rooting potential was evaluated in cuttings collected in spring/2004 from stock plants localized in Curitiba, Paraná. The stem cuttings were produced with 12 cm long, right cut upper and bevel be...