Cultural and Morphological Variability in Phomopsis vexans (Sacc. & Syd.) Harter Causing Fruit Rot of Brinjal

Abstract

Several diseases invading the crop are the major constraints for limited brinjal production and productivity. The most destructive and important disease on brinjal are Brinjal leaf blight and fruit rot incited by the fungus, Phomopsis vexans (Sacc. & Syd.) Harter (Edgerton and Moreland, 1921). The fruit rot distinctively is the most destructive phase of disease which damages the fruit partially or completely in the field as well as during transit. On the fruits, the disease appears as minute sunken greyish spots with

Effect of Different Culture Media on Growth and Establishment of Phomopsis vexans Inciting Fruit Rot of Brinjal (Solanum melongena L.)

“…One to two guttulae were recorded in all culture media except Sabouraud dextrose agar and Tomato fruit agar exhibited two to three guttullae presented in Table 2. The presented work confirms by Jamir, [8] who observed that variation in the presence of guttulae (oil drop) in α-conidia was evident. Mostly 2 guttulae was recorded in PDA media.…”

“…The distinct zonation was found on Potato dextrose agar, Sabouraud dextrose agar, Yeast malt agar, Malt extract agar and Corn meal agar and Indistinct zonation on Tomato fruit agar whereas no zonation was found on Brinjal fruit agar, Oat meal agar, Richard's synthetic agar, Malt extract agar, water agar. The excellent pycnidial density was recorded on Oat meal agar and Tomato fruit agar while on Richard's synthetic agar and Water agar were absent and rest five culture media showed the good pycnidial density except Yeast malt agar had poor depicted in Table 1.Whereas for conformity of result compares with Jamir, [8] who reported the pathogen was differed in various aspect viz. colony colour, shape and zonation etc on different culture media and recorded maximum radial growth on PDA media and minimum radial growth on CDA media.…”