Effect Of Auxins And Cytokinins On The Growth And Yield Performance Of Cassava (Manihot esculenta Crantz)

ABSTRACT

 The effects of auxins and cytokinins at different concentrations rations on the growth and yield parameters of three genotypes of cassava were investigated. Randomized complete block design (RCBD) was used with three replications and genotypes consisted ofTME 419, CR 41-10 and UMUCASS 36. The treatments used were auxins (a- naphthalene acetic acid at 0, 0.0 I and 0.02mm ) and cytokinins (6-benzyladenine at 0, 0.02 and 0.05mm). The growth regulators were medially applied to the cutting and allowed to dry for 30minutes before planting. Data collected was subjected to analysis of variance using GenSTA T statistical tool. The result of the experiment showed that the plant growth regulators has significant increase for tuberization of cassava plant but showed no significant effect on the growth parameters at 3month after planting. The result revealed that increase in the concentration of auxins have positive effect on the yield parameter but cytokinin showed negative effect with increase in the concentration. Treatments with 0.02mM auxins induced the greatest increase in root weight, biomass and root number of M esculenta, thereby suggesting that auxins at 0.02mM concentration could thus be used to enhance tuberization of cassava plant.