تأثير التخزين و المعاملة الحرارية في حيوية فيروس الموزاييك المخطط للشعير

Abstract EN

The effect of cold storage and heat treatment on the viability of BSMV in barley seeds was evaluated.

The virus was not affccicd by storage for 5 years since the infection level remained the same (around 50%) for the duration of the experiment.

Similarly, percent of seeds germination was not affected by storage and remained around 96% for the 5-year period.

When virus-infected seeds were exposed to 80°C for different durations (3, 5, 10, 12.

15 and 17 days), seed infection was reduced from 59% in untreated seeds to 33-57% in treated seeds, depending on duration of seed treatment.

Such a reduction in the seed infection rate was accompanied by reduction in seed germination, from 94% to 55-88% based on the duration of the heat treatment.

When virus-infcctcd seeds were exposed to 85°C for 10 days, the infection rate was reduced from 59 to 25% with a reduction in seed germination from 94 to 53%.