ABSTRACT Bayor, H. 1996. Genetic variation in height and diameter of tamarack ( Larix laricina (Du Roi) K. Koch) and their correlation with syllepsis. 62pp . Advisor. Dr. R. E. Farmer. Key words: Broad sense heritability, genetic correlation, age-age correlation, tamarack, Larix Laricina (Du Roi) K. Koch, syllepsis. The broad sense heritability of total height, annual height increment, diameter, volume index and syllepsis of 11 provenances of tamarack in northwestern Ontario were examined. Ge...
The mean Moduli of Rupture and Elastiuty (NOR and MOE) measured for each of the 12 treatment combinations used in this experlment are summarised in Table 1, MOR values ranged from 4.23 to 11.92 N/ mm2 while MOE values ranged from 1950 to 4140 N/mmz. These range values, conform favourably to the range values of 3.28 to 10.46 N/mm2 (MOR) and 2200 ta 4010 N/ mm2 (MOE) reported by Badejo et al(2011). Furthermore, the mean MOR range values of 6.62 to 11.92 N/mmz obtalned for some of the boards com...
Abstract Tills study examined the public willingness 10 finance urban tree planting 111 Lagos metropolis. Nigeria and the associated factors capable of influencing the willingness. Descriptive statistics and Tobit model ~t 5% level of significance were used to analyse data obtained from multi-stage randomly sampled 873 Lagos metropolitan residents. The results revealed that 84% of the respondents were willing 10 contribute funds 10 Urban Tree Planting (UTP) in Lagos metropolis with 1>-I1000 b...
Abstract ' Wood samples of Ceiba pentandra, Antiaris toxicaria and Triplochiton scleroxylon were treated with new and spent engine oils using three treatments methods; brushing, soaking for 24 hours and soaking for 48 hours. The treated wood samples and control were exposed to Termite attack for 16 weeks using graveyard method. Visual assessment and percentage weight loss were employed to evaluate the effects of the preservative engine oil. Data collected were subjected to analysis of varianc...
ABSTRACT Despite availability and functioning of several newspapers in Nigeria, little or no change was observed in people’s attitude towards forestry related issues with attendant decline in the country’s forest resources. This paper reports the content analyses of forestry information reported by two prominent and national newspapers in Nigeria with the view to determining the frequency, space allotted, prominence and content categories of forestry related information in the newspapers ...
Introduction Urban Forestry and Green Economy Nexus Green economy has been defined by UNEP (2010) as an economy that results in improved human well-being and social equity, while significantly reducing environmental risks and ecological scarcities. In its simplest expression, a green economy is low-carbon, resource efficient, and socially inclusive. According to UNEP (2011), green cities are defined as cities that are environmentally friendly. Indicators measuring environmental friendliness o...
ABSTRACT Khaya grandifoliola, an important economic hardwood species, has been severely depleted by overexploitation. This necessitates its ex-situ conservation and requires in-depth knowledge of nursery handlings, seed storage, in-vitro and ex-vitro propagation on which information is sparse. Therefore, silvicultural requirements for conservation and sustainable use of K. grandifoliola in some parts of southern Nigeria were investigated in this study. Seeds of K. grandifoliola were purposiv...
ABSTRACT IDepartment of Forest Resources Management, University of Ibadan, Oyo State: Nigeria 1Departmlnt of Forestry and wildlife, University of Uyo, Akwa Ibom State, Nigeria I A study was conducted to assess the stakeholders' participation in forest roads maintenance at the Ondo State Afforestation Project (OSAP) in Odigbo Local Government Area of On do State. Forest roads maintenance is a tool for sustainable forest management. Using simple random sampling method, respondents were selected...
Abstract This study involves investigation of alleged inhibitory effects of leachate from sugar maple (Acer saccharum Marsh., donor plant) on yellow birch (Betula alleganiensis Britton., vreceiver plant). The term allelopathy, introduced by Molisch in 1937 refers to this phenomenon in which one plant produces a chemical which inhibits the growth of another plant. The present investigation follows from that of Tubbs (1970) into competition between maple and birch for light and moisture....
ABSTRACT This study investigated the potential participation of Ibadan residents in the development of urban forestry initiative for environmental rehabilitation of the metropolis. Data were obtained from multi stage randomly sampled 397 residents within the five local government areas (LGAs) in Ibadan metropolis. The result revealed that 49% of the respondents claimed to have trees planted around their residences. Out of this, 83% believed that these trees provide shade for them for recreati...
ABSTRACT Increasing cost of feedstuff due to competition between livestock and human necessitates research into Low-Cost Unconventional Feedstuffs (LCUF) for profitable fish farming. Almond kernel has been reported to be nutrient-rich feedstuff for livestock; however information on the potential of almond (Terminalia catappa) as a LCUF has not been well documented in aquaculture. Therefore, the use of almond kernel meal as a replacement for soybean meal in the diet of Clarias gariepinus was ...
Abstract Biological deterioration of wood is one of the major challenges on wood utilization especially in tropical countries like Nigeria. This is because of the favourable weather condition for the bin-deteriorating agents to thrive. This study is therefore carried out to investigate the biodegrading agents of logs in sawmills and planks in plank markets in Ibadan, Nigeria. Data for the study were collected using checklist, and laboratory examination of collected samples from decayed logs ...
The study investigated stem distributions and height-diameter relationships of two Irvingiaceae species in Oban Forest, Cross River State, Nigeria with a view to suggesting appropriate management strategies for their conservation in the area. Using systematic sampling technique, six 2km-transect was cut in each of the primary and secondary forests in the area. Four 50m×50m plots were laid alternately along each transect. Thus, twenty-four plots were used in each of the two forest types, maki...
The paper examines the adoption of agoforestry practices as a land use option in Atisbo Local Government Area of Oyo State. Data were generated from primary and secondary sources. The primary data were obtained from structured questionnaire and direct interview of farmers in the area, using purposive simple random sampling technique. Fifteen farmers were randomly sampled from each of the ten cells of Atisbo Farmers Association of Nigeria with 440 members. Data generated were analyzed...
ABSTRACT. The study examined the participation of rural women in exploitation of non-timber forest products (NTFPs), as a means of sustainable livelihoodinSouthwesternNigeria.A number of 320 respondents were interviewed through pre-tested structured interview schedule in the four purposively selected forest reserves using a multistage sampling procedure. Data collected were presented using appropriate descriptive and inferential statistics. The mean age and mean year of experience in NTFPs ex...