Results 61 to 70 of about 3,374 (171)
Summary Hypsipyla grandella (Lepidoptera: Pyralidae) is found throughout Central and South America, except in Chile. Damage caused by this pest in native trees of the subfamily Swietenoideae (Meliaceae) is so intense and severe that it makes industrial ...
P. G. Lemes +7 more
semanticscholar +1 more source
Uso de regressão e redes neurais artificiais na estimativa do volume de Khaya ivorensis
Este trabalho objetivou comparar o volume de arvores de mogno africano estimado pelo modelo de Schumacher e Hall e por redes neurais artificiais. A coleta de dados ocorreu em dois sistemas agroflorestais no municipio de Belterra, Para, com 7 e 11 anos de
Lucas Sérgio de Sousa Lopes +7 more
semanticscholar +1 more source
Competition represents the effect of distance and size of neighbouring trees. Relationship between distance and size differs due to spatial mixture of trees, and this may make no single tree size variable consistently related to distance. Hence, neighbourhood effect on trees due to competition is difficult to quantify.
Oladele Fisayo Falade +2 more
wiley +1 more source
Sacred groves are rich biodiversity hotspots serving as an important habitat for conserving species and providing ecosystem goods and services to meet societal needs. Despite the benefits these sacred groves offer, they are threatened by anthropogenic stressors coupled with climate change impacts, thereby limiting their maximum ability to offer ...
Augustine Kofi Gyedu +7 more
wiley +1 more source
Abstract Degraded lands pose significant challenges for tree establishment and growth due to poor soil quality and limited nutrient availability. This research aims to explore the potential of using DAP (diammonium phosphate) fertilizer as a supplement for enhancing the survival and growth of tree species in degraded lands; Casuarina equisetifolia L ...
Shiferaw Alem
wiley +1 more source
The current challenge facing the management and preservation of tropical biodiversity is attributed to the increasing demand for a particular wood in the infrastructure development of many countries.
Angela N. Amujiri +6 more
doaj +1 more source
Reliability-Based Investigation on Compressive Strength Characteristics of Structural-Sized Iroko (Meliceae Excelsa) and Mahogany (Khaya Ivorensis) Timber Column Found in Nigeria [PDF]
This research work examined the reliability of the Nigerian grown Iroko and Mahogany timber species as column materials. The strength and physical properties of these timber species were determined to predict the suitability of the species as structural ...
Abdullahi Jimoh +2 more
doaj +1 more source
Pest categorisation of Pyrrhoderma noxium
Abstract Following the commodity risk assessment of bonsai plants (Pinus parviflora grafted on Pinus thunbergii) from China performed by EFSA, the EFSA Plant Health Panel performed a pest categorisation of Pyrrhoderma noxium, a clearly defined plant pathogenic basidiomycete fungus of the order Hymenochaetales and the family Hymenochaetaceae.
EFSA Panel on Plant Health (PLH) +24 more
wiley +1 more source
TOLERÂNCIA DE PLANTAS DE Khaya ivorensis E Toona ciliata A HERBICIDAS
Dois experimentos foram conduzidos com o objetivo de avaliar a tolerância de plantas mogno-africano (Khaya ivorensis) e cedro-australiano (Toona ciliata var. australis) a herbicidas. O delineamento experimental foi inteiramente casualizado, com quatro repetições. Tratamentos: i) testemunha sem aplicação, ii) imazapyr (25 g i.a. ha-1), iii) oxyfluorfen (
Alexandre Magno Brighenti +1 more
openaire +2 more sources
Pterocarpus erinaceus (Poir.) is an endemic and endangered species of the Guinea‐Sudano‐Sahelian zones currently overexploited for timber, fodder, and medicinal purposes. Therefore, plantations are critical to meeting the high demand in the international market while reducing pressure on natural stands, but its growth performance across different ...
Michael Asigbaase +8 more
wiley +1 more source

