What do plant suffer most from? Biological or abiotic stress?
It cannot be said with certainty what type of stress the plant suffers most from. This is totally dependent on the type of crop in which the stress is experienced. However, specific types of stress are seen more in certain cultivations.
Abiotic stress factors are found more in crops that are cultivated outside, because these crops are subject to weather conditions.
On the other hand, the climate in covered cultivations is controlled better, because of which the risk for abiotic stress is lowered. However, a higher chance for biological stress is there in covered cultivations.