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1

Preliminary study of the activity of some essential oils against Fusarium oxysporum f. sp. cubense

100%
Istianto M., Emilda D.
Journal of Fruit and Ornamental Plant Research
|
2011
|
tom 19
|
nr 2
Wilt disease, caused by Fusarium oxysporum f. sp. Cubense (Foc), is one of the most important diseases of bananas. An Integrated Pest Management (IPM) strategy is a promising concept for controlling this disease. This concept must be supported with all suitable control techniques that can be compatibly and effectively utilized. Essential oils, which have been long recognized as having good fungus-toxic com­pounds, are a recommend technology which may be used to complete previous con­trol techniques. The aim of this experiment was to evaluate the antifungal activity of essential oils extracted from Cymbopogon nardus, Eugenia aromatica, Pogostemon calbin, and Vitiveria zizanoides against Foc. The experiment was conducted in the January-April time period of 2010, in the laboratory of the Indonesian Tropical Fruit Research Institute, at room temperature. The result showed that the essential oils which had been tested were able to suppress Foc mycelial growth. Essential oil ex­tracted from E. aromatica provided the strongest suppression of Foc mycelial growth, mainly when used at a volume of 9 and 18 pi. This result indicated that essential oil of E. aromatica had good potency and may be developed as a control agent against wilt disease of banana.
2

The effect of gibberellic acid [GA3] on the growth, photosynthetic pigment content and oil yield of patchouli [Pogostemon cablin Benth.] plants grown in shade condition

100%
Misra M.
Acta Physiologiae Plantarum
|
1995
|
tom 17
|
nr 4
3
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Effect of treating lettuce (Lactuca sativa L.) seeds with solutions of ethereal oils from camphor tree (Cinnamomum camphora L.) and patchouli plant (Pogostemon cablin Benth.) on their germination

70%
Chen W., Holubowicz R.
Acta Scientiarum Polonorum. Hortorum Cultus
|
2010
|
tom 09
|
nr 3
One of the most important problems in horticultural seed science and technology nowadays is looking for new methods to improve seed quality. Especially interesting are the ones, in which compounds of natural origin are used. One of such groups is ethereal oils from plants. The commercial seed samples of lettuce (Lactuca sativa L. ‘Dumka’) were soaked in 9 different treatments of 5% alcoholic solution of camphor tree (Cinnamomum camphora L.) ethereal oil and 9 different treatments of 5% alcoholic solution of patchouli plant (Pogostemon cablin Benth.) ethereal oil. Then the seeds were routinely tested for seed germination, the length of the received seedlings was also measured and the seeds health status was evaluated. The tested ethereal oils had no effect on the germination of lettuce seeds. However, soaking the seeds in the ethereal oils solutions did decrease the percentage of dead seeds in the tested samples. Soaking of the seeds in the ethereal oils solutions also increased the percentage of healthy ungerminated seeds. Treating the seeds with the concentrations of the ethereal oils solutions, although had no effect on their germination, still shortened the length of seedlings. Moreover, the used ethereal oils lowered the amount of identified Alternaria alternata and Cladosporium sphaerospermum fungi on the seeds.
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