Question
Vasoactive substances are present inÂ
Solution
A vasoactive  substance is an endogenous  agent or pharmaceutical drug  that has the effect of either increasing or decreasing blood pressure  and/or heart rate  through its vasoactivity , that is, vascular activity (effect on blood vessels ). Tomato is a good source of Vasoactive substances.
What is the absorption of ions in plants occurring with the aid of metabolic energy called?
Choose the correct option
Statement I: Transpiration is the loss of water vapour from stomata, lenticel and cuticle and it occurs during day time...
Among the following irrigation systems, which is most efficient and economical?Â
Black heart of potato is due to
Asepsis means:
Which one of the following plant nutrients helps in the synthesis of auxins?
A situation when the rainfall deficiency is 25% or more of long term average, it is classified as
Sodium absorption rate can be calculated by using of formula:
Brassica napus is a _______ crop
Rating is the process of which crop?
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