Results 21 to 30 of about 119 (99)

Nível crítico de dano de papuã em feijão-comum [PDF]

Planta Daninha, 2013
Os objetivos do presente trabalho foram estimar níveis críticos de dano de papuã (Urochloa plantaginea) em feijão-comum, em situações onde a planta daninha foi manejada precocemente e ocorreu reinfestação, e avaliar as alterações que sofre em decorrência
A. Kalsing, R.A. Vidal
doaj   +1 more source

Assessment of the nutritional status of grassland: nitrogen nutrition index

Semina: Ciências Agrárias, 2014
The aim of this study was to assess the Nitrogen Nutrition Index (NNI) of an Urochloa plantaginea pasture submitted to different nitrogen (N) levels and forage mass (FM) through dilution curve model.
Laércio Ricardo Sartor , Tangriani Simioni Assmann, André Brugnara Soares , Paulo Fernando Adami , Alceu Luis Assmann   +4 more
doaj   +1 more source

Competition of maize hybrids with alexandergrass (Urochloa plantaginea)

Australian Journal of Crop Science, 2019
Maize is one of the world's major cereals, and alexandergrass is the most damaging weed in the crop. The objective of this work was to evaluate the relative competitive ability of maize hybrids in the presence of alexandergrass through replacement series experiments.
Fernando Frandoloso, Leandro Galon, Ricardo Luis Gabiatti, Felipe Bianchessi, Cinthia Maethê Holz, André Dalponte Menegat, Carlos Orestes Santin, Francisco Wilson Reichert Júnior, Milena Barretta Franceschetti, Maico André Michelon Bagnara, Luciane Renata Agazzi, César Tiago Forte   +11 more
openaire   +1 more source

Indaziflam: Leaching and control of Urochloa plantaginea in applications on coffee litter with different rainfall simulations

Coffee Science, 2020
Coffee litter and the rain that occurs after the application of pre-emergence herbicides impact on their leaching and weed control effectiveness. The objective of this study was to evaluate the leaching and control effectiveness of indaziflam, applied on coffee litter, and under simulations of different amounts of rainfall.
Paulo Vinicius Da Silva, Mack José dos Santos, Sergio Mateus Tronquini, Ana Lígia Giraldeli, Roque Dias de Carvalho, Patricia Andrea Monquero, Estela Maris Inácio   +6 more
openaire   +3 more sources

Controle de Urochloa plantaginea com herbicidas residuais e performance agronômica de dois cultivares de feijoeiro [PDF]

Revista Brasileira de Herbicidas, 2014
O objetivo deste trabalho foi avaliar os efeitos da utilização de herbicidas residuais, aplicados em pré-emergência do feijoeiro, sobre a redução da infestação de plantas daninhas e o desempenho agronômico da cultura. Foram realizados dois experimentos a campo, sendo que um tinha o cultivar UFT -06 (Grupo Carioca, ciclo curto e porte ereto) e o outro o
Augusto Kalsing, Ribas Antônio Vidal
openaire   +1 more source

Inflorescence, spikelet, and floral development in Panicum maximum and Urochloa plantaginea (Poaceae)

American Journal of Botany, 2005
Inflorescence development in Panicum maximum and Urochloa plantaginea was comparatively studied with scanning electron and light microscopy to test the transfer of P. maximum to Urochloa and to look for developmental features applicable to future cladistic studies of the phosphoenol pyruvate carboxykinase (PCK) subtype of C4 photosynthesis clade (P ...
Reinheimer, Renata, Pozner, Raúl Ernesto, Vegetti, Abelardo Carlos   +2 more
openaire   +3 more sources

Efficacy of the herbicides indaziflam and clomazone on problematic weeds of family poaceae to sugarcane crop

Bioscience Journal, 2022
It is believed that indaziflam gives a longer period of weed control compared to clomazone, irrespective of the type or texture of the soil. Thus, the aim of this study was to evaluate pre-emergent control in five problematic weed species of family ...
Giovani Apolari Ghirardello, Lucas da Silva Araújo, Gustavo Soares da Silva, André Felipe Moreira Silva, Luiz Henrique Franco de Campos, Ricardo Victoria Filho   +5 more
doaj   +1 more source

Genetic Diversity and Population Structure of Brachiaria Species and Breeding Populations

Crop Science, Volume 57, Issue 5, Page 2633-2644, September–October 2017., 2017
Several apomictic Brachiaria (Trin.) Griseb. (syn. Urochloa P. Beauv.) species are commercially important tropical forage grasses, but little is known about the interspecific diversity and population structure within this genus. Previously published genus‐level Brachiaria phylogenies were conducted with few genotypes and contradicted well‐established ...
Narda Jimena Triviño, Juan Guillermo Perez, Maria Eugenia Recio, Masumi Ebina, Naoki Yamanaka, Shin‐ichi Tsuruta, Manabu Ishitani, Margaret Worthington   +7 more
wiley   +1 more source

Biomass flow and defoliation pattern in alexandergrass fertilized with nitrogen

Bioscience Journal, 2017
The determination of biomass flows can assist on improving pasture fertilization techniques, contributing to identify the best management methods and, in relation the use of fertilizers. Nitrogen deficiency in pastures can reduce forage production.
Anelise Pereira Hundertmarck, Marta Gomes da Rocha, Luciana Pötter, Paulo Roberto Salvador, Tuani Lopes Bergoli, Dambros de Moura, Pedro Arthur de Albuquerque Nunes, Maria José de Oliveira Sichonany   +7 more
doaj   +3 more sources

Interference of Urochloa plantaginea on Morphophysiology and Yield Components of Black Beans

Journal of Agricultural Science, 2019
Among the factors which affect crop productivity, there are weeds which compete for environment resources. The objective of this work was to determine the periods of interference of alexandergrass on the morphophysiology and productivity components of black beans. The experiment was conducted in a complete randomized block design with four replications.
Milena Barretta Franceschetti, Leandro Galon, Maico André Michelon Bagnara, Renan Pawelkiewicz, Leonardo Brunetto, Adilson Lemos Rezende, Juliane Cervi Portes, Vinicius Soligo, Gismael Francisco Perin, Janaíne Oliveira Toso, Francisco Wilson Reichert Júnior, César Tiago Forte   +11 more
openaire   +2 more sources