ABSTRACT
Three plant materials Carica papaya roots and seed and Piper
gilincelise seeds were assayed for phytochemicals. Tests revealed the presence
of Alkaloids, Havonoids, Tannins, Saponins, Phenols, Terpenoids, Steroids and
Glycosides. P. guineense seeds contained 1.63%, 1.11%, 0.83%, 2.64% and 0.66%
alkaloids, flavonoids, tannins, saponins and phenols respectively. The roots of
C. papaya had 0.75% alkaloids, 0.59% flavonoids, 0.34% tannins, 1.40% saponins
and 0.05% phenoids while the seeds contained 0.62%, 0.34%, 0.22%, 0.69% and
0.08% respectively of alkaloids, fiavonoids, tannins, saponins and phenols.
These differed statistically (P 0.05) from the contents of Piper guineense
seeds respectively. The effects of these phytochemicals were evaluated against
Colleroti'ichuin destructivuin at 5 concentrations 0, 25, 50, 75 and 100% of
the crude extracts. P. guineense strongly inhibited the radial growth of the
pathogen and this was significantly (P < 0.05) higher than growth inhibition
obtained from treatments with C. papaya root and seed, though not significantly
different from henomyl treated cultures regardless of concentration of
application. However, on the spore germination inhibition, benomyl had superior
effect but was at per with P. guineense at 100% concentration in inhibition
effect. Nevertheless these had superior inhibitory effects than C. papaya root
and seed treatments. The fungitoxicity of the extracts increased as extract
concentration increased. All the extracts reduced the incidence and severity of
anthracnose disease of cowpca in i'ivo irrespective of concentration of
application and did not differ statistically from henornyl. However, cowpea
seedlings treated with C. papaya seed extract had slightly superior leaf area
and dry weight than P.guineense seed and C. pap(l'!(1 root treatments as well
as benomyl, but they gave better control of the disease which translated into
better performance of the plants.
ENYIUKWU, A (2021). Evaluation Of The Fungitoxic Activity Of Some Phytochemicals On The Causal Agent Of Anthracnose Of Cowpea, Colletotrichum Destructivumo'gara. Mouau.afribary.org: Retrieved Nov 23, 2024, from https://repository.mouau.edu.ng/work/view/evaluation-of-the-fungitoxic-activity-of-some-phytochemicals-on-the-causal-agent-of-anthracnose-of-cowpea-colletotrichum-destructivumogara-7-2
AKUCHIE, ENYIUKWU. "Evaluation Of The Fungitoxic Activity Of Some Phytochemicals On The Causal Agent Of Anthracnose Of Cowpea, Colletotrichum Destructivumo'gara" Mouau.afribary.org. Mouau.afribary.org, 09 Nov. 2021, https://repository.mouau.edu.ng/work/view/evaluation-of-the-fungitoxic-activity-of-some-phytochemicals-on-the-causal-agent-of-anthracnose-of-cowpea-colletotrichum-destructivumogara-7-2. Accessed 23 Nov. 2024.
AKUCHIE, ENYIUKWU. "Evaluation Of The Fungitoxic Activity Of Some Phytochemicals On The Causal Agent Of Anthracnose Of Cowpea, Colletotrichum Destructivumo'gara". Mouau.afribary.org, Mouau.afribary.org, 09 Nov. 2021. Web. 23 Nov. 2024. < https://repository.mouau.edu.ng/work/view/evaluation-of-the-fungitoxic-activity-of-some-phytochemicals-on-the-causal-agent-of-anthracnose-of-cowpea-colletotrichum-destructivumogara-7-2 >.
AKUCHIE, ENYIUKWU. "Evaluation Of The Fungitoxic Activity Of Some Phytochemicals On The Causal Agent Of Anthracnose Of Cowpea, Colletotrichum Destructivumo'gara" Mouau.afribary.org (2021). Accessed 23 Nov. 2024. https://repository.mouau.edu.ng/work/view/evaluation-of-the-fungitoxic-activity-of-some-phytochemicals-on-the-causal-agent-of-anthracnose-of-cowpea-colletotrichum-destructivumogara-7-2