ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Efficacy of pre-harvest fungicidal sprays on grey mold rot and fruit quality of pear in storage.

Banyal, D. K.; Sharma, R. L.;

Indian Journal of Mycology and Plant Pathology Year: 1996 Vol: 26 Issue: 3 Pages: 286-288 Ref: 7 ref.

1996

บทคัดย่อ

Four systemic and 2 nonsystemic fungicides were tested for their efficacy against grey mold, caused by Botrytis cinerea, of pear and for their effect on fruit quality traits under cold storage. Field trials were conducted using 11 year old pear trees in Himachal Pradesh, India. The fungicides tested were carbendazim (as Bavistin), thiabendazole (as Mertect-50), thiophanate methyl (as Topsin-M), fenapanil (as Sisthane), mancozeb (as Dithane M-45) and captan (as Orthocide). Two pre-harvest fungicidal sprays were applied 30 and 10 days before harvest and the trees were sprayed to the run-off stage. The harvested fruits were packed in boxes, half of the fruit were placed in cold storage (0 deg C) immediately after packing and the other half at room temperature (25-32 deg C). Changes in fruit qualitative traits, fruit firmness, total soluble solids and sugars after pre-harvest fungicidal sprays were recorded at 0 and 45 days after storage. Significant control of grey mold was obtained with carbendazi

m at 500 micro g/ml and fruit were nearly free from decay up to 10 days at ambient temperature and up to 30 days in cold storage. Decay control by fungicides significantly reduced with the increase in storage period. Pre-harvest sprays had little or no effect on the fruit qualitative characters. It is concluded that pre-harvest fungicidal treatment of pear fruits followed by cold storage controls fruit decay without affecting the qualitative traits.