The antifungal activity of extracts of Oxalis barrelieri and Cymbopogon citratus against Bipolaris oryzae and Fusarium moniliforme was tested, and seed treatment with NaCl was used to improve seed germination and seedling vigour of treated rice seeds. The inhibitory effect of plant extracts against B. oryzae and F. moniliforme was based on the type of extract and concentration. The ethanolic extract of C. citratus at 10000 ppm had the strongest inhibitory effect, inhibiting F. moniliforme and B. oryzae development by 58.51 percent and 55.9 percent, respectively. Rice seeds that had been sorted in a 20 percent NaCl solution had a higher mass (quantify), a germination percentage of 13 percent higher than seeds sorted in water and 20 percent higher than seeds that were not sorted. The weight of rice seeds was found to have a moderately positive and important linear relationship (Rho (78) = 0.427 **, p0.01) with germination. Rice seed germination was stimulated similarly by ethanol extracts of O. barrelieri and C. citratus in green house trials, with 15- 22 percent from the top of paper method and 11-16 percent from the sand method. Rice seed treatments at 1% concentration had the best germination/emergence and decreased B. oryzae and F. moniliforme seed infestation by 25.25 percent and 9.83 percent, respectively. Plants are used to treat stressed seeds. When compared to untreated stressed seed, extracts showed a less pronounced (5%) decrease in germination (26 percent ). Only the associations between germination and F. moniliforme infestation (r (54) = -0.441**, p 0.01) and emergence and F. moniliforme infestation (r (54) = -0.426**, p 0.01) were moderately and statistically important. Rice seeds treated with 20 percent NaCl and/or 1 percent ethanol extracts of Oxalis barrelieri and Cymbopogon citratus showed promise as a green alternative to synthetic fungicides for controlling rice seed-borne infestation, improving seedling vigour, and increasing seed germination and emergence for successful seedling field establishment.
Author (s) DetailsA. I. Isaiah
Department of Soil Science, Faculty of Agriculture, Ahmadu Bello University, Zaria, Nigeria.
Dr. A. M. Yamusa
Meteorological Unit, Department of Soil Science, Institute for Agricultural Research, Ahmadu Bello University, Zaria, Nigeria.
A. C. Odunze
Department of Soil Science, Faculty of Agriculture, Ahmadu Bello University, Zaria, Nigeria.
View Book :- https://stm.bookpi.org/CRAS-V6/issue/view/59
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