Question
Available soil water capacity is the moisture held
between field capacity and the permanent wilting point. The soil water potential at the permanent wilting point is approximately:Solution
The soil water potential at the permanent wilting point is -15 bar, the soil moisture is held so tightly by the soil particles that it becomes unavailable for plant uptake. Plants wilt because they cannot extract water from the soil at this level of water potential.
In British Drug House (BDH) method of pH testing, soil is mixed with distilled water, universal indictor solution and ______for a colour reaction.
In Pearson's correlation coefficient, what does a value of -1 indicate?
When pollen from a flower of one plant falls on the stigmas of other flowers of the same plant, as in Maize is known as ______
Match the following:
Which one of the following Soil crusting is a problem?
Match the following with correct definition:
i. Monophagous - a) Feeds on a few related species of host plantsÂ
ii. Oligophagous - b) Fee...
ECR stands for............................?
Correct order of irrigation terminologies with respect to amount of water involved during a given event of irrigation (WR stands for water requirement, ...
Spongy tissue is a physiological disorder of
The grafting technique called ‘stone grafting’ is primarily used in which fruit crop?
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