Quality Parameters of Eggplant (Solanum melongena L.) as Affected by Grafting, Spacing and Fertigation Levels
2013
Ndereyimana, A. | Praneetha, S. | Pugalendhi, L. | Pandian, B. J. | Hategekimana, A.
A study was conducted to find out the effect of grafting, plant spacing and fertigation levels on eggplant fruit quality parameters. Eggplant (Solanum melongena L.) F1 hybrid COBH 2 was grafted on Solanum torvum. The obtained grafts were evaluated in a strip plot design with four spacing levels (S1: 1 m x 1m, S2: 2 m x 1 m, S3: 1.5 m x 1.5 m and S4: 0.6 m x 0.6 m) and three fertigation levels, F1: 75 % RDF (Recommended Dose of Fertilizer), F2: 100 % RDF and F3: 125 % RDF, and four replications. After six months, the plants were pruned to obtain the ratoon crop which lasted four months. Seedlings (not grafted) were planted in first season for comparison with main crop of grafts. The data for dry matter, protein, ascorbic acid, total phenols and solasodine contents in eggplant's fruits were recorded and the analysis of variance was performed while t-test was conducted to compare grafts and seedlings. The results indicated that apart from solasodine content, with an average of 0.029 %, other quality parameters were significantly affected by spacing and fertigation levels; while grafting did not have any significant effect. Application of 100 per cent RDF and 125 per cent RDF were on par, with the highest dry matter (9.24 and 9.21 per cent), protein (15.61 mg g-1 and 15.25 mg g-1) and ascorbic acid (16.60 and16.62 mg g-100), respectively. The 100 per cent RDF recorded the highest value of total phenols (1.82 mg g-1). Keywords
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