Assessment of growth and yield of some high-and low-cyanide cassava genotypes in acid ultisols of south eastern Nigeria

Thirty-eight high and low cyanide cassava genotypes were evaluated for growth and yield. The experiment was fitted in a randomized complete block design with three replications. Analysis of variance (ANOVA) revealed significant difference (P ≤ 0.05) in growth and yield parameters, indicating strong genetic variations among the genotypes. Significant (P ≤ 0.05) highest average storage root weight of 1.5 and 1.8 kg were obtained from TMS 94/0035 (high cyanide cassava genotype) and TMS 98/0505 (low cyanide cassava genotype), respectively. Correlation analyses indicated significant (P ≤ 0.05) and positive associations between number of storage roots per plant, average storage root weight and root yield in the two types of cassava genotypes tested, indicating that the parameters are good indices that can be improved upon during breeding and selection to enhance root yield. Four high cyanide cassava genotypes (TMS 99/2123, TMS 96/1642, TMS 98/0068 and TMS 94/3200﴿ were outstanding in fresh root yield performance. To improve fresh root yield in cassava, the inter-relationships among the various agronomic character of the cassava genotypes demands appropriate attention. The study gives more information on the improvement of fresh storage root yield of cassava.Keywords: High cyanide cassava genotypes, low cyanide cassava genotypes, correlations, growth, yieldAfrican Journal of Biotechnology, Vol. 13(5), pp. 651-656, 29 January, 201

Effect of intercropping varieties of sweet potato and okra in an ultisol of southeastern Nigeria

A field experiment was conducted at the research farm of the National Root Crops Research Institute (NRCRI), Umudike in 2000 and 2001 cropping seasons to access the productivity of three sweet potato cultivars intercropped with three okra cultivars. Intercropping generally increased okra plant height while intercropping with TIS 2532 OP.1.13 sweet potato significantly increased the number of pods per plant of okra than intercropping with other sweet potato cultivars. Tuber yield in sweet potato was higher in TIS 87/0087 than other cultivars. Both pod and tuber yields were not affected by intercropping. Land equivalent ratio was higher with intercropping TAE 38 okra and TIS 87/0087 sweet potato

Effect of growth media on propagation of four varietie of cassava

No Abstract.Global Journal of Agricultural Sciences Vol. 5 (2) 2006: pp. 131-13

Growth, cane yield and sugar content of six genotypes of sugarcane in a forest zone of southeastern Nigeria

The growth and yield of six sugarcane genotypes were studied in field plots between 1999 and 2001, at Umudike, in the humid forest zone of southeastern Nigeria. Treatments comprised five improved sugarcane genotypes (NCS 001, NCS 003, NCS 004, NCS 005 and C062175) and one local variety (Umudike Local) arranged in a randomized complete block design (RCBD) with three replications. Cultivar NCS 003 gave significantly the highest stalk lengths and cane yields in both the plant-cane and ratoon crops. The genotype NCS 005, on the other hand, gave the highest cane yield in the plant-cane but not in the ratoon crop, while C062175 gave the least yield in the plant-cane but had one of the highest yields in the ratoon crop. Sugar concentration (Brix %) was highest in Umudike Local in the plant-cane crop. Key words: Sugarcane, genotypes, growth, cane yield, sugar content Agro-Science Vol.2(2) 2001: 15-1

Influence Of Plant Density And Nitrogen Fertilization On Late-Season Forage Maize

This study was conducted to investigate the growth and yield performance of forage maize grown at four nitrogen (N) fertilizer level (0, 150, 300 and 450 kg/ha) and three planting densities (11, 22 and 44 plants/m2). Crop height, stem thickness and number of green leaves were decreased by increases in plant population density. However, leaf area index (LAI) and crop growth rate (CGR) were increased by increases in plant number. Thus, over 100% yield increases were obtained by sowing at 44-plants/m2 compare with 11-plant/ m2. Application of N fertilizer also significantly increased the measured plant attributes. Extra 33.5, 21.9 and 16.5kg of herbage were produced per unit of N used at 150, 300 and 450kg N/ha rates, respectively. The high dry matter yields obtained from increases in plant population were best sustained by ample supply of N to the growing crop. The implications of use of both factors as well as production of forage at this period of low farm activities within the rainy season are discussed.Journal of Applied Chemistry and Agricultural Research Vol. 5 1998: pp. 54-6

Forage millet response to irrigation and nitrogen fertilization in the derived savanna zone of Nigeria

No Abstract

Biomass and seed production of twelve soybean varieties in fish pond in Southeastern Nigeria

No Abstract.Nigeria Agricultural Journal Vol. 36 2005: pp. 97-10

Effects of Nitrogen and phosphorus fertilizer rates on the growth and yield of sesame (Sesamum indicum L.) in the southeastern rain forest belt of Nigeria

No Abstract.Nigeria Agricultural Journal Vol. 38 2007: pp. 1-1

Effect of plant spacing and sowing date on Sesame (Sesamum indicum L.) production in south Eastern Nigeria

No Abstract.Nigeria Agricultural Journal Vol. 38 2007: pp. 12-2