Potassium is required by which of the following regions of plants
I. Meristematic tissues II. Buds
III. Leaves IV. Root tips
Only I
I and IV
II and IV
All of these
Related Questions
Sulphur is found as a constituent in which of the following amino acids?
Cysteine
Methionine
Both (a) and (b)
None of above
Based on the quantitative requirement of elements by the plants, these elements are called
Macronutrients
Micronutrients
Both (1) and (2)
None of these
Which is essential for the growth of root tip?
Which of the following elements is very essential for uptake and utilisation of and membrane function?
Phosphorus
Molybdenum
Manganese
Boron
About 98% of the mass of every living organism is composed of just six element including carbon, hydrogen, nitrogen, oxygen and
Phosphorus and sulphur
Sulphur and magnesium
Magn0esium and sodium
Calcium and phosphorus
Sulphur is an important nutrient for optimum growth and productivity in
Pulse crops
Cereals
Fibre crops
Oilseed crops
Zinc is essential for the activity of which plant hormone?
Gibberellin
Cytokinin
Auxin
Ethylene
An element playing important role in nitrogen fixation is
Molybdenum
Copper
Manganese
Zinc
Number of essential elements are?
60
30
17
9
Farmers in a particular region were concentrated that pre-mature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum seed yield?
Frequent irrigation of the crop
Treatment of the plants with cytokinins along with a small dose of nitrogenous fertilizer
Removal of all yellow leaves and spraying the remaining green leaves with 2, 4,5-trichlorophenoxy acetic acid
Application of iron and magnesium to promote synthesis of chlorophyll
