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Influence of three plant extracts on Fusarium oxysporum f. sp. ciceris mycelium growth

100%

Sahayaraj K., Namasivayam S. K. R., Borgio J. A. F.

Journal of Plant Protection Research

2006

tom 46

nr 4

335-338

Three plant extracts viz. bulbs of Allium sativum L. (Liliaceae), seeds of Annona squamosa L. (Annonaceae) and leaves of Vitex negundo L. (Verbenaceae) were evaluated against cowpea wilt pathogen, Fusarium oxysporum f. sp. ciceris by mycelial dry weight method under laboratory condtions. The mean mycelium dry weights of F. oxysporum of methanol and benzene extracts of A. sativum obtained from 125 g of crused dry plant material (bulbs) were 0.0113 and 0.0174 mg, respectively. This was followed by methanol and petroleum ether extracts of A. squamosa (0.2396 and 0.2381 mg). They effectively controlled mycelial growth of cowpea wilt pathogen, however V. negundo extracts did not cause any significant mycelium growth inhibition when compared to other plant extracts tested. Among the three plant extracts, methanol extracts of A. sativum bulbs could possibly be used for controlling F. oxysporum.

Antifungal activity of three fern extracts on causative agents of groundnut early leaf spot and rust diseases

100%

Sahayaraj K., Borgio J. A. F., Raju G.

Journal of Plant Protection Research

2009

tom 49

nr 2

141-144

Antimycotic activity of three fern extracts from Hemionitis arifolia (Burm.f.) Moore., Pteridium aquilinum (Linn.) Kuhn. and Christella parasitica (Linn.) H. Lev. were evaluated against groundnut early leaf spot and rust disease causative agents viz., Puccinia arachidis Speg. and Phaeoisariopsis personata (Berk & M.A. Cuortis) Vanarx., espectively by mycelial dry weight method. Both the fungi were sensitive to all the three fern extracts tested. Among the extracts, chloroform extract of H. arifolia was found to have maximum antifungal activity against both fungi. Between these two fungi, P. personata was found to be more sensitive to the tested plant extracts than P. arachidis. From this study it is concluded that chloroform extract from H. arifolia can be utilized for managing rust and leaf spots diseases on groundnut.

Ograniczanie wyników

2 Journal of Plant Protection Research

2 Borgio J. A. F.

2 Sahayaraj K.

1 Namasivayam S. K. R.

1 Raju G.

1 2009

1 2006

Wyniki wyszukiwania

Influence of three plant extracts on Fusarium oxysporum f. sp. ciceris mycelium growth

Antifungal activity of three fern extracts on causative agents of groundnut early leaf spot and rust diseases