Results 31 to 40 of about 4,645 (205)

Development stages horseweed in soybeans competition

open access: yesArquivos do Instituto Biológico, 2018
: The objective of this study was to evaluate the relative competitive ability of soybean with different development stages of hairy fleabane. Two experiments were conducted in greenhouse, in a completely randomized design.
Diecson Ruy Orsolin da Silva   +2 more
doaj   +1 more source

Animal medical systems from Apis to apes: history, recent advances and future perspectives. [PDF]

open access: yesBiol Rev Camb Philos Soc
ABSTRACTAnimal medical systems encompass a wide range of behaviours aimed at maintaining or improving health. It has become clear that these behaviours are not limited to animals treating themselves (self‐medication) but also include the treatment of group members, resulting in the adoption of the more inclusive term “animal medication”. Behaviour with
Pusceddu M   +5 more
europepmc   +2 more sources

Germinação das sementes de Conyza canadensis e Conyza bonariensis em função da qualidade de luz Germination of Conyza canadensis and Conyza bonariensis seeds as a function of light quality

open access: yesPlanta Daninha, 2011
Conyza canadensis e C. bonariensis são espécies invasoras cujo relato tem sido cada vez mais frequente, dada sua capacidade de desenvolvimento em áreas com palhada, sob sistema de semeadura direta (SSD).
O.M Yamashita   +2 more
doaj   +1 more source

Inheritance of apomeiosis (diplospory) in fleabanes (Erigeron, Asteraceae) [PDF]

open access: yesHeredity, 2004
Unreduced egg formation (apomeiosis) in flowering plants is rare except when it is coupled with parthenogenesis to yield gametophytic apomixis via apospory or diplospory. Results from genetic mapping studies in diverse apomictic taxa suggest that apomeiosis and parthenogenesis are genetically linked, a finding that is compatible with the conventional ...
openaire   +2 more sources

A List of the Scutelleroidea of the La Rue-Pine Hills Ecological Area with Notes on Biology [PDF]

open access: yes, 2017
A survey of the scutelleroid fauna of the LaRue-Pine Hills Ecological Area, Union County, Illinois was conducted from May, 1972 to September, 1974. Forty-nine species were collected, five of which were state records. The remaining 44 represented over 57%
McPherson, J. E, Mohlenbrock, R. H
core   +3 more sources

Germinação das sementes de Conyza canadensis e Conyza bonariensis em função da disponibilidade hídrica no substrato Germination of Conyza canadensis and Conyza bonariensis seeds in function of water availability in the substrate

open access: yesPlanta Daninha, 2010
Recentes relatos apresentam Conyza canadensis e C. bonariensis como importantes espécies daninhas do sistema agrícola. A grande adaptabilidade ecológica dessas espécies a sistemas conservacionistas de manejo de solo e o aumento da pressão de seleção ...
O.M. Yamashita, S.C. Guimarães
doaj   +1 more source

Does the Glyphosate Treatment Interfere Negatively on RNA Integrity in Glyphosate-Resistant and -Sensitive Conyza bonariensis? [PDF]

open access: yesPlanta Daninha, 2019
: The hairy fleabane ( Conyza bonariensis (L.) Cronq.) is among the most problematic glyphosate-resistant weeds to manage around the world. In weed science, molecular approaches such as RNA sequencing (RNA-Seq) and quantitative reverse-transcription ...
C. PIASECKI   +5 more
doaj   +1 more source

Influence of spray volume on the control of Conyza spp. in soybean pre-sowing with burndown [PDF]

open access: yesBrazilian Journal of Biology
The herbicide mixture diclosulam + halauxifen appears to be an alternative for the control of Conyza spp.; however, the spray volume may result in different spray deposition effects on the target and, therefore, on the control.
G. P. Silva   +10 more
doaj   +1 more source

Conyza bonariensis growth and development according to thermal time accumulation and photoperiod [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2020
: The objective of this work was to characterize the growth and development of hairy fleabane (Conyza bonariensis) according to thermal accumulation and photoperiod, at different sowing times, and to propose a scale representing the main plant ...
Nereu Augusto Streck   +8 more
doaj   +1 more source

Monitoring Glyphosate- and Chlorimuron- resistant Conyza spp. Populations in Brazil [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2021
Conyza species are important weeds in global agriculture, especially due to their capacity to evolve resistance to multiple herbicide mechanisms of action.
RAFAEL R. MENDES   +10 more
doaj   +1 more source

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