Results 51 to 60 of about 1,047 (165)

Strip Crops and Intercrops Outperform Crop Rotations for Weed Management Under Conservation Agriculture in Zimbabwe

open access: yesWeed Research, Volume 66, Issue 1, January/February 2026.
ABSTRACT High weed infestation remains a major constraint on crop productivity for smallholder farmers practising Conservation Agriculture (CA). Fewer, more diverse weeds are desirable to reduce competition and provide ecosystem services. Crop diversification can help, but it is not yet clear which species combinations and layouts are most effective ...
Betty Rutendo Masamba   +4 more
wiley   +1 more source

Presencia de Commelina diffusa var. gigas (Commelinaceae) en Sudamérica Presence of Commelina diffusa var. gigas (Commelinaceae) in South America

open access: yesBoletín de la Sociedad Argentina de Botánica, 2008
Commelina diffusa var. gigas (Commelinaceae), considerada hasta el momento como una entidad endémica del E de Estados Unidos de América, es reportada por primera vez para Argentina y Paraguay.
Alberto Carlos Slanis   +1 more
doaj  

Soil Weed Seed Bank Response to Crop Management Practices on Smallholder Farms Across an Agroclimatic Gradient in Zimbabwe

open access: yesAdvances in Agriculture, Volume 2026, Issue 1, 2026.
Weed seed banks function as subterranean reserves that continuously replenish weed populations, driving future infestations on farms. This study examined how various crop management practices on smallholder farms influence the size and composition of weed seed banks, analyzing farmer‐managed fields across an agroclimatic gradient in Zimbabwe.
Juliet C. Murimwa   +7 more
wiley   +1 more source

Lectotypification of Streptolirion (Commelinaceae)

open access: yesPhytotaxa, 2015
In the course of revising the family Commelinaceae in India, it has been found that no type was indicated in the protologue of Streptolirion volubile Edgew. Thus, it warrants typification under execute Art. 9.2 of the International Code of Nomenclature (McNeill & al. 2012).
Nandikar, Mayur D., Gurav, Rajaram V.
openaire   +3 more sources

Ecological Diversity of Summer Maize Weed Species in the Western Mid‐Hills of Nepal

open access: yesInternational Journal of Agronomy, Volume 2026, Issue 1, 2026.
Maize (Zea mays L.) cultivation in the mid‐hills of Nepal is vital for food security but faces significant yield losses due to weed competition. The two‐year (2023–2024) phytosociological study on summer maize was conducted to assess weed diversity and dynamics in randomly selected 40 farmers’ fields of Puranchaur, Dhikidada, Gharmi, and Lamachaur at ...
Dinesh Marasini   +4 more
wiley   +1 more source

Status assessment of the Saddlepeak Dewflower (Murdannia saddlepeakensis Ramana & Nandikar: Commelinaceae): an endemic spiderwort plant of Andaman Islands, India

open access: yesJournal of Threatened Taxa, 2016
The current distribution and threat assessment of Murdannia saddlepeakensis Ramana & Nandikar (Commelinaceae), an endemic plant of Saddle Peak National Park, northern Andaman is presented here.
Johny Kumar Tagore   +4 more
doaj   +1 more source

Impact of Pre‐Emergent Herbicides and Soil Management on Weed Community Dynamics and Soybean Yield

open access: yesInternational Journal of Agronomy, Volume 2026, Issue 1, 2026.
Pre‐emergent herbicides are key tools in managing herbicide‐resistant and hard‐to‐control weed species in soybean (Glycine max L.) cultivation. This study aimed to evaluate the effects of pre‐emergent herbicides on weed phytosociology, soybean phytotoxicity, and grain yield under different soil management systems and environmental conditions.
Eduarda Grün   +9 more
wiley   +1 more source

Caracterização morfológica de espécies de trapoeraba (Commelina spp.) utilizando a análise multivariada Morphological characterization of wandering-jew species (Commelina spp.) using multivariate analysis

open access: yesPlanta Daninha, 2007
As espécies Commelina benghalensis, C. villosa, C. diffusa e C. erecta são conhecidas como trapoeraba e, freqüentemente, são confundidas entre si, dificultando o controle químico, o que pode provocar prejuízos econômicos e danos ambientais.
D.C. Rocha, R.A. Rodella, D. Martins
doaj   +1 more source

Unrolling of Syngonium podophyllum: Functional Anatomy, Morphology and Modelling of Its Peltate Leaves

open access: yesAdvanced Biology, Volume 9, Issue 11, November 2025.
The unrolling of the peltate leaves in Syngonium podophyllum is analyzed and quantified (left‐hand side to center). These measurements serve to verify a mathematical model for leaf unrolling based on the model used in Schmidt (2007). An additional formula for obtaining a layer mismatch from a prescribed radius is derived.
Michelle Modert   +4 more
wiley   +1 more source

Superação da dormência em sementes de Murdannia nudiflora (L.) Brenan - DOI: 10.4025/actasciagron.v30i2.1785

open access: yesActa Scientiarum. Agronomy, 2008
O objetivo deste trabalho foi identificar tratamentos capazes de promover e uniformizar a germinação das sementes de Murdannia nudiflora (L.) Brenan.
Eduardo Andrea Lemus Erasmo   +4 more
doaj   +1 more source

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