Question

Give an account of production and maintenance of breeder’s seed in self pollinated crops.

Answer 1

UPTAKE OF NUTRIENTS IN PLANTS • Mineral uptake is the process in which minerals enter the cellular material, typically following the same pathway as water. • The most normal entrance portal for mineral uptake is through plant roots. • During transport throughout a plant, minerals can exit xylem and enter cells that require them. • Mineral ions cross plasma membranes by a chemiosmotic mechanism. • Plants absorb minerals in ionic form: nitrate , phosphate and potassium ions, all have difficulty crossing a charged plasma membrane.