PAPER TITLE :GROWTH RESPONSE OF TMS 98/0591 CULTIVAR OF MANIHOT ESCULENTA (CRANTZ) EXPOSED TO SIMULATED ACID RAIN OF DIFFERENT PH.
FUTA JOURNAL OF RESEARCH IN SCIENCE | VOLUME 10 NUMBER 1 2014
- Author(s) : B.O. Odiyi1* and J.F. Bamidele2
The growth response of TMS 98/0591 cultivar of cassava Manihot esculenta Crantz exposed to simulated acid rain of different pH was studied. The plant was exposed to simulated acid rain of pH 2.0, 3.0, 4.0, 5.0, 6.0 and 7.0 (control) respectively. Simulated acid rain induced morphological changes including chlorosis, senescence, necrosis, leaf abscission, leaf folding and death. Plant height, leaf area, fresh weight, dry weight, relative growth rate , the chlorophyll content of the leaf and the harvest index was highest at 7.0 (control) and significantly (p<0.05) decreased with increasing acidity. The result shows that TMS 98/0591 cultivar of Manihot esculenta exhibited growth stimulation at high pH level. Keywords: Simulated acid rain, Manihot esculenta, chlorophyll content, harvest index