ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Incidence of soft rot of bell pepper in Himachal Pradesh.

Arti Shukla; Sharma, R. L.;

Journal of Mycology and Plant Pathology Year: 2000 Vol: 30 Issue: 1 Pages: 107-109 Ref: 6 ref.

2000

บทคัดย่อ

In order to determine the incidence of soft rot (caused by Fusarium equiseti and F. semitectum [F. pallidoroseum]) of bell pepper, detailed surveys of vegetable markets, collection centres, stores and godowns were conducted in the Solan, Shimla and Sirmaur districts of Himachal Pradesh together with the two main vegetable collection centres of Northern India at Chandigarh and Delhi during the peak harvesting, storage and marketing seasons of bell pepper from June to December in 1995 and 1996. The data revealed that soft rot was prevalent in all the locations surveyed. The average incidence varied from 2.8 to 9.6%. The postharvest loss by Fusarium spp. was maximum in the Delhi (9.6%) and Chandigarh (8.61%) vegetable markets where the temperature tends to remain higher (>35 deg C) during the storage and marketing of bell pepper pods. Fusarium spp. were of common occurrence in the higher hills of the Shimla district indicating the ability of the pathogen to grow and spread faster at the low tempera

tures (<25 deg ) prevailing in these areas during the rainy season. The effect of different temperatures on fungal growth and fruit rot due to Fusarium spp. were evaluated. Both F. equiseti and F. pallidoroseum were able to grow in the temperature range 5-35 deg , with an optimum growth temperature of 25 deg . The growth of F. pallidoroseum was significantly greater than F. equiseti. Storing bell pepper between 10-15 deg was most effective in controlling soft rot. Storage beyond this temperature range caused rapid decay with maximum rotting at 25 deg . The % disease index was higher with F. pallidoroseum than with F. equiseti.