A study was conducted using 231 chicks (101 Normal feather, 56 frizzle and 74 Naked neck) to evaluate growth traits and semen quality characteristics using biochemical and IGF-1 as molecular marker on three genotypes (normal, frizzle and naked neck) of Nigeria indigenous chickens. Each of the genotypes comprised of twenty five hens and five rooster... Continue Reading
Field experiments were conducted at the Fadama Farm of Usmanu Danfodiyo University, Sokoto for three consecutive years during 1990-92 rainy seasons. The objective of the investigation was to study the effects of nitrogen, phosphorus and seed rates on two upland rice cultivars with a view to arriving at an optimum combination rates of these factors ... Continue Reading
Field and green house trials were conducted to study the effects of fertilizers and herbicides on the reaction of cowpea varieties to Alectra voqelii (Benth.) at Samaru in the northern Guinea savanna ecological zone of Nigeria in 1991 and 1992 wet seasons and the reaction of cowpea varieties to Alectra seed concentration in the green house in 1992 ... Continue Reading
An experiment was conducted in the greenhouse to evaluate urea by comparing responses of irrigated wheat to treatments involving urea, ammonium sulfate and sulfur coated urea (SCU). Grain y i e l d , total dry matter, 100 seed weight and grain to stover r a t io were observed. The wheat was an early maturing, short statured variety (Yecora Rojo). Continue Reading
An experiment was conducted in the greenhouse to evaluate urea by comparing responses of irrigated wheat to treatments involving urea, ammonium sulfate and sulfur coated urea (SCU). Grain y i e l d , total dry matter, 100 seed weight and grain to stover r a t io were observed. The wheat was an early maturing, short statured variety (Yecora Rojo). Continue Reading
In order to study the response of cucumber to different Ahmadu Bello University Zaria during the 1992 rainy season. Four N levels (0 nitrogen levels and planting densities a field trail was conducted at the Institute of Agricultural Research Farm, Samaru, , 25, 50, 75kg/ha) and four planting densities (10,000, 20,000, 30,000 and 40,000 plants/ha) ... Continue Reading
A field experiment was conducted during the 1992 rainy season in Samaru in the northern Guinea Savanna ecological zone of Nigeria to investigate the effect of different levels of two types of compound fertilizers on yield and yield components of three varieties of soyabean (Glycine max (L.) Merrill). Continue Reading
IBANGA, INIOBONG JIMMY. The Physical, Chemical, and Mineralogical Properties of Laterite Samples Formed in Various Environments. (Under the direction of STANLEY W. BUOL). Samples of l a t e r i t e were obtained from Australia, Bolivia, B r a z i l, Nigeria, Thailand, and the U. S. A. The l a t e r i t e materials were found to have a yery wide ra... Continue Reading
IBANGA, INIOBONG JIMMY. The Physical, Chemical, and Mineralogical Properties of Laterite Samples Formed in Various Environments. (Under the direction of STANLEY W. BUOL). Samples of l a t e r i t e were obtained from Australia, Bolivia, B r a z i l, Nigeria, Thailand, and the U. S. A. The l a t e r i t e materials were found to have a yery wide ra... Continue Reading
Two field trials were conducted in the 1993 and 1994 cropping seasons to develop strategies for efficient use of nitrogen in cereal-based cropping systems of the Northern Guinea Savanna of Nigeria. The objective of the first trial was to evaluate the contribution of root morphology to N use efficiency (kg grain per kg available soil N) and yield of... Continue Reading
Field trials were conducted to dertermine the effects of period of weed interference and evaluate various herbicides for weed control in sweet pepper (Capsicum annuum L.) and chilli piepper (C. frutescens L.), respectively at Samaru during the wet season in 1982 and at Samaru and Kadawa during 1982/83 dry season. Continue Reading
Phosphorus deficiency is a major constraint that limits food production in Nigeria, especially under acidic soil conditions. Presently, successful production of high nutrient requiring crops such as maize is only possible with the use of inorganic phosphate fertilizers which are very costly and often unavailable to the farmer. In an attempt to addr... Continue Reading
Studies were carried out to investigate the mode of gene action governing the inheritance of geedcotton yield, lint yield, lint percent, mean fiber length and fiber fineness within six intervarietal crosses of Upland cotton. Polygenic inheritance for these characters was indicated by unimodality in the F2 distribution in most of the crosses for the... Continue Reading
Studies were carried out to investigate the mode of gene action governing the inheritance of geedcotton yield, lint yield, lint percent, mean fiber length and fiber fineness within six intervarietal crosses of Upland cotton. Polygenic inheritance for these characters was indicated by unimodality in the F2 distribution in most of the crosses for the... Continue Reading
An experiment was conducted at Samaru during the 1987 wet season to study the effect of seed size and number of seeds per hole on the growth and yield of cowpea (Vigna unguiculata (L) Walp) varieties. The treatments consisted of two cowpea varieties (Kanannado (local) and SVU 48), three seed sizes (large, medium and small) and four- number of seeds... Continue Reading