บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Development of a botanical fungicide against blue mould of mandarins.

Dixit, S.N., Chandra, H., Tiwari, R. and Dixit, V.

Journal of Stored Products Research. Volume 31, Number 2, Apr 1995. Pages 165-172.

1995

บทคัดย่อ

Development of a botanical fungicide against blue mould of mandarins.

During screening of vapours emitted by leaf extracts of 30 species of higher plants against Penicillium italicum causing blue mould rot of mandarins, the vapours of Ageratum conyzoides exhibited the strongest toxicity inhibiting the mycelial growth of the test fungus completely. Fungitoxicity in leaves stored at ambient room temperature persisted up to 8 days. The volatile fungitoxic constituent from leaves was isolated in the form of essential oil which was standardized by its various physicochemical properties. The minimum inhibitory concentration (MIC) of the oil was found to be 0.2% at which the oil exhibited fungistatic nature and showed broad fungitoxic spectrum, inhibiting 32 storage fungi out of 35 tested. The efficacy of the oil on storage at ambient room temperature persisted for 330 days and remained unaltered even on heating up to 100 degrees C. The oil by dipping and fumigation successfully controlled blue mould rot of mandarins and imparted no adverse effect on the quality of treated fruits.