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 Cotton production plays an important role in farmers’ livelihood in the Gezira State in the Sudan. Cotton is the main cash crop produced in the scheme. However, sustainability of cotton production in the Gezira Scheme has been an interesting issue, especially, after the noticeable deterioration of the cotton industry in the last few years. This study determined the environmental and economic sustainability of cotton production in the Gezira Scheme as perceived by farmers who are t...
ABSTRACT Growth studies which include diameter distribution using the Weibull function, development of stand volume models, and construction of provisional top height-age and total volume production-age curves for the average site class were carried out in plantations of Eucalyptus cloeziana, E. tereticornis and Pinus caribaea.The study locations were Kabama (Zaria~. ~nd.Afak~~~both typical of ••. ' .1 ~.;.. • 1 ..i .. Northern Guinea savanna zone of Nigeria), Nimbia (Derived savanna zo...
ABSTRACT This experiment was conducted to evaluate the effects of walnut (T. conophorum) leaf and onion (A. cepa) bulb on the gut morphometry of Clarias gariepinus towards elucidating its mechanism of growth promotion. Twenty Clarias gariepinus juveniles (7.39±0.29g/ fish) were allocated to nine treatments, with three replicates each. Nine experimental diets were formulated at 40% crude protein representing different level of walnut leaf and onion bulb (0.5%, 1.0%, 1.5% and 2.0%) respectivel...
ABSTRACT Women are responsible for the bulk of agricultural processing activities in rural areas. Dearth of effective processing facilities has limited their productivity, thus predisposing them to low welfare status. Development Partnership in Higher Education (DELPHE) intervention sought to enhance women processors‟ capacity, however, its effect on their welfare status is yet to be ascertained. Therefore, the effects of DELPHE project on welfare status of rural women processors in Oyo an...
ABSTRACT This study was conducted with a view to identify the socio-economic characteristics of processors of Vitellaria paradoxa and Parkia biglobosa; to examine the role of the rural dwellers in the sourcing and processing of V. paradoxa and P. biglobosa; to examine the different benefits that accrue to commercial processing of V. paradoxa and P. biglobosa and to investigate strategies put in place for sustainable use of V. paradoxa and P. biglobosa in the study area. Three (3) Local Gover...
Abstract Monthly variation in litterfall of Gmelinaarborea stands aged 28, 29, and 30 years were studied for 13 months in 2005 - 2006 with litter traps in three 20m x 20m plots randomly selected in Gmelinaarborea stands in Shasha Forest Reserve (SFR),Osun State, Nigeria. Monthly collections of litter fractions per stands were sorted into leaves, twigs, reproductive structures and others. Litters according to fractions per stand per month were oven dried at 80°C for 48 hours. Samples were cr...
ABSTRACT The maize in a weaner rabbit diet was substituted with cassava waste meal (CWM) at 0,25,50, 75 and 100%. The effects of these treatments on the performance, nutrient digestibility and haematology of the rabbits were evaluated in a 70-day feeding trail period. Twenty-five littermate New Zealand white rabbits between 6 - 7 weeks old averaging 750 ±25.23g were used. The rabbits were randomly alloted to five treatments and each animal was individually accommodated in metal cages. Feed a...
ABSTRACT Development practitioners are constantly in search of appropriate media to reach specific target groups in the development process. Newspapers are relatively more suitable for the /iterates. This study therefore investigated-the readership of newspapers among college of agriculture students in Oyo state. A total of 162 respondents were randomly selected and administered with questionnaire on areas such as newspapers reading status, types of newspapers read, frequency of reading of ne...
Abstract A 49-day feeding trial involving 180 1-day-old Abhor acre broilers was carried out to evaluate growth and carcass quality of broilers fed cassava leaf meal and cassava peel meals used as replacements of soya bean meal and maize at 20% respectively. Four groups of 45 birds per group of 15 birds per replicate consisting of three replicates per group. Group A served as control (cassava leaf meal (0%) and peelings meal (0%)), Group B ( 20% cassava peelings -20% leaf meal), C (20% leaf m...
ABSTRACT Poverty remains the major obstacle to economic emancipation and achievement of development agenda in Nigeria. Worse still, rising food prices pose a major threat to feeding the teeming population in Nigeria. Declining food production, high population growth, and negative food trade balance combine to worsen the food and poverty situations in Nigeria. We stand on the premise that surging and volatile food prices could have a hardest hit on those who could not afford it – the poor. T...
Summary A 96-hour bioassay was conducted using the water soluble fraction of a Nigerian light crude oil sample on Clarias gariepinus fingerlings. 0, 2.5, 5.0, 7.5 and 10 mls of water soluble fractions (WSF) of the oil were added to 1000 litres of de-chlorinated tap water to form 0, 25, 50 , 75 and 100 parts per million representing treatments 1 to 5 respectively. Each treatment had two replicates with fifteen fish per replicate. At the end of the 96-hour period of exposure, the fish were tra...
ABSTRACT Soil erosion is a major threat to sustainable agriculture in the humid tropics. Management practices adopted to control soil erosion and improve soil quality include mulching and the use of Vetiver Grass Strips (VGS). Integrating VGS with mulch could be more effective in controlling soil erosion than VGS or mulching alone. However, information on the effectiveness of combined utilisation of VGS and Vetiver Mulch (VM) in controlling soil erosion and improving crop yield is scanty...
ABSTRACT Effective management planning tools for forest require growth and yield functions that can produce detailed predictions of stand development. Models such as Gamma Distribution Function (GDF), Weibull, Beta, and similar functions have been used to predict growth and yield of forest stands. However, information on the use of GDF in forest management has not been fully documented. The development of a program using Java programming language for GDF to predict growth and yield of Tecton...
ABSTRACT With the growing concerns about the likely implications of climate change, the long term sustainability of conventional agricultural approaches and biodiversity loss have contributed to a growing interest in the potential of the so-called underutilised crops to address food, nutritional, and income security challenges. In support of their wider use, advocates of underutilised crops associate a number of benefits with them. These include agronomic and nutritional benefits such as drou...