In literature, many authors used 10 to 15 days stress duration to study different physiological and molecular changes in plants…… Can anybody tell what are the possible reasons due to which many investigators like to study stress treatments experiments for 10 / 15 days?
Any reference or specific reason?
I am not very sure but wanted to share my thoughts on the question posted here. I guess, we learn a lot going through such a scientific questions and answers.
Well, I have also seen the plants are exposed to various forms of stresses for 10-15 days in most of the experiments. So, I think this an average duration of stresses that the plants experience in their life time. For instance, flooding stress normally donot last for more than 2 week and during this peroid of stress, the plants will have expressed their reactions. Theoratically, about 7-10 days are enough for the stressed plants to exhibit any changes, and this could be one of the reasons why the researchers try and obtain more information within short time. Ofcourse there can be many reasons. Thanks for such an interesting question
Hello,
I feel the same as Mr. Chhogyel.
I think that these happenings in nature don't happen for long periods, and if they happen for so long, it is possibly in areas where plants are adapted to that stress. so probably checking it for longer time would not make no much sense.
But I'm not sure at all. I hope someone who has more experience can come and explain this in a better way.
When exposed to abotic stress like waterlogging, plants will be somewhat damaged by the stress on the one hand, and they can be adapted to the stress on the other hand. Plants can be better adapted to the stress in a relatively longer duration of stress such as 10-15d waterlogging. In my knowledge, cotton yield will be reduced by 15-30% with 10-15d waterlogging, while 5d waterlogging does not reduce yield under field conditions.
In experimental biology.. the parameter that is studied is taken into consideration for deciding the period of investigation. For instance, studying plant response to drought or uv will take a short duration while metal stress depends on the concentration used for the study. More over the defense system of the plants is better understood during initial and final stages of plant growth. The type of study is also important, if vegetative or reproductive stage is the area of interest so depending on plant the growth, days may vary. So overall, I do not think there is a particular reason for such a study.
if you keep it more time the plant will die . in nature , the stress conditions usually short period . if the plant can adopt after long time so there is no benefit for the study
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