Variability in Phytophthora drechsleri f. sp. cajani and Effect of Temperature

Journal of Pure and Applied Microbiology

卷:11

Chandra Kant Singh¹  Vineeta Singh¹  Ramesh Chand¹  Ichini Sudhir¹  Mamta Sharma² 

[1] Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221005, India.;

[2] International Crops Research Institute for the Semi-Arid tropics, Patancheru, Hyderabad, 502324, India.;

关键词: cajanus cajan;    phytophthora blight;    temperature;   

DOI  :  10.22207/JPAM.11.2.48

来源: DOAJ

【 摘 要 】

The present experiment was undertaken to study the cultural, morphological and pathological variation in six isolates of Phytophthora cajani. The isolates were collected from pigeonpea growing areas of eastern Uttar Pradesh. Isolates exhibited considerable variations in cultural characters and growth on potato dextrose agar medium. The universal ITS1 and ITS4 primers showed the difference among P. cajani isolates. There was significance influence of temperature on the growth of isolates, however isolates could not be differentiated based on the temperature. The average growth (1.69 cm2) at 30°C temperature was recorded with all the isolates followed by average growth (1.25 cm2) at 35°C temperature. The maximum radial growth (3.6 cm2) was observed at 96 h in isolate PDC015-1. The isolate PDC013-1 and PDC014-3 showed highest 47.0% plant mortality on ICP 7119 genotype. Among the isolates PDC014-3 killed 28.6% plants after 4th day of inoculation.

【 授权许可】

Unknown