Which one is essential for root growth (a) Zn (b) Ca (c) Mo (d) S.
Option B.Calcium is an macronutrient which is absorbed by the plant as calcium ions. It is required by meristematic and differentiating tissues. It is a constituent of calcium pectate of middle lamella. Also, it is needed during the formation of mitotic spindle. Ca++ is essential for root growth and regulation of metabolic activities of plant
