Agricultural Journal
ISSN: Online 1994-4616ISSN: Print 1816-9155
Abstract
Field evaluation and laboratory analysis of the physical and chemical components of cassava tubers was carried out. Significant differences (p< 0.05) were recorded among the cassava clones for number of tuber/plant, percent dry matter, percent starch, root width, root length and percent ash. This suggests the magnitude of inherent variation among the cassava clones. The number tuber/plant and tuber yield were high in 92/0067. Percent ash content of the cassava tubers was maximum (2.41) (92/0067, 92/0057) A positive correlation coefficient between percent dry matter and dry matter yield, percent starch and percent ash suggests a complementation among there characters, Conversely a negative correlation coefficient in the association between percent dry matter, tuber/plants, tuber yield/plant and percent fibre may suggest an independent association among these characters in selection process is expected. The first four principal axis recorded eigen values greater than 1.00. They altogether summarized 65% of observed variation. Characters of importance in principal axis 1 are percent starch, percent dry matter and dry matter yield. Principal axis 2 was described by chemical components of the tubers. While principal axis 2 was described by the physical attributes of cassava tubers. The stepwise multiple regression analysis for tuber yield/plant returned tuber/plant as most important for dry matter yield. The study highlighted the magnitude of variation among cassava tubers for physical and chemical components, irrespective of the time of sampling (6 months or 9 months after planting).
How to cite this article:
Zira Sunday Peter . Studies on Variation in Physical Characters and Chemical Components of Cassava (Manihot esculenta Crantz) Tubers.
DOI: https://doi.org/10.36478/aj.2007.613.616
URL: https://www.makhillpublications.co/view-article/1816-9155/aj.2007.613.616