When first time disease starts in field by inoculum called primary infection after establishment and colonization of pathogen forms secondary inoculum and this attack second time after the colonization. It may be by conidia, zoospores, oospores, hyphae, and other spores.
#1. The organism must be regularly associated with the disease and its characteristic lesions. #2. The organism must be isolated from the diseased host and grown in culture. #3. The disease must be reproduced when a pure culture of the organism is introduced into a healthy, susceptible host. #4. The same organism must be reisolated from the experimentally infected host. Here in the case of virus #2 and #3 not applicable. So virus not follow the Koch's Postulates.
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![Diseases of Rice and Their Management [year-3]](/img/n.gif)
Sir ur video are more help during lockdown study season 🙂😊
Very helpful content.... and it's to the point....
Very helpful video sir tq🙏
Thank you so much sir it s very helpful
Most welcome
Precautions are not mentioned sir
Thanks
Tq sir
Nice sur
Sir aap bhut achhi video benete h
How to mange the disease is missing from your video
What is primary and secondary infection .pliz reply
When first time disease starts in field by inoculum called primary infection
after establishment and colonization of pathogen forms secondary inoculum and this attack second time after the colonization.
It may be by conidia, zoospores, oospores, hyphae, and other spores.
Is it follow koch's postulates???
#1. The organism must be regularly associated with the disease and its characteristic lesions.
#2. The organism must be isolated from the diseased host and grown in culture.
#3. The disease must be reproduced when a pure culture of the organism is introduced into a healthy, susceptible host.
#4. The same organism must be reisolated from the experimentally infected host.
Here in the case of virus #2 and #3 not applicable. So virus not follow the Koch's Postulates.
Plz plant pathology...se related acchi vedio Banate rahiye.....👍👍👍👍
Knowledge of Science ki koshish hai ki aap sabko better content conceptual style me provide kiya jaye.
Hamse jitna possible ho sakega kosis karege.app video ko jitna jyada share karenge aur jitne jyada apke feedback ayenge hame utna hi jyada motivation milega video bane me.
I do my best...