Studies on the Effect of Sargassum polycystum (C.Agardh, 1824) Extract on the Growth and Biochemical Composition of Cajanus cajan (L.) Mill sp

摘要

In the present study, an attempt has been made to investigate the effect of seaweed liquid fertilizer of S. poly cy stum on the seed germination growth, yield, biochemical and pigment characteristics of C. cajan. The 0.50% concentration of both waterand alcohol extract showed better results of seed germination, growth parameters, biochemical and pigments constitutions. The lowest concentration (0.50%) showed higher seed germination (99.12±6.03%), shoot length (18.51±2.52 cm), root length (6.96±0.19 cm), fresh weight (0.326±0.037 mg g~(-1) fr.wt) and dry weight (0.093±0.005 mg g~(-1) fr.wt). The highest concentrations (1.5%) exhibit the lower seed germination (81.19±4.83%), shoot length (9.63±1.08 cm), root length (3.21±0.173 cm), fresh weight (0.148±0.031 mg g~(-1) fr.wt) and dry weight (0.042±0.005 mg g~(-1) fr.wt). The biochemical composition such as protein(4.48%±0.138%),lipid(5.96%±0.039%) and concentration. The minimum biochemical composition such as protein (1.187%±0.047%), lipid (2.573%±0.050%) and carbohydrate (4.987%±0.411%) was recorded at 1.5% concentration. Pigment content such as chlorophyll 'a'(0.615±0.032 mg g~(-1) fr.wt), chlorophyll 'b' (0.445±0.13 mg g~(-1) fr.wt), total chlorophyll (1.107±0.041 mg g~(-1) fr.wt) and carotenoids (0.712±0.52 mg g~(-1) fr.wt) shows the maximum at lower concentration (0.50%) than that of higher concentration (1.5%).