Question

Role of physiological growth parameter in crop productivity

Answer 1

Role of physiological growth parameter in crop productivity b Exposure of sunflower and maize plants to increasing concentrations of lithium (0–50 mg Li dm−3) in a nutrient solution induced changes in biomass, leaf area and photosynthetic pigment accumulation, as well as levels of lipid peroxidation. The highest applied lithium dose (50 mg Li dm−3) evoked a significant reduction in the shoot biomass for both examined species, as well as necrotic spots and a reduction of the leaf area in sunflower plants. An enrichment of a nutrient solution with 5–50 mg Li dm−3 did not significantly affect chlorophylls a and b and the carotenoid content in sunflower plants. However, in maize, a significant decrease in all pigment content under highest used lithium concentration was noted.