· Sequential process involved in growth: cell division → cell enlargement → cell differentiation. · Maximum cell elongation occurs in the zone behind the root/shoot. · Growth is Quantitive change. · But, development is Qualitative + Quantitive. · Growth is primarily affected by two climatic factors, which are light and temperature. · During the growth there is an increase in dry weight, permanent change in size, volume, number of cells. · Growth curve → S-shaped sigmoid curve. · Growth is measured by Auxanometer, Horizontal microscope, Crescograph. · The classical experiment in growth were performed by Boysen-Jensen and Darwin. · Phases of Growth: 4 phases i) Lag phase: Initial phase, slow cell division. ii) Log phase(exponential): Maximum growth, fast cell division. iii) Deaccelerating phase: Decrease in growth rate. iv) Station...