Studies on graft and cross compatibility of wild brinjal species with local brinjal Solanum melongena cultivar

Abstract

Author : MALIKIREDDY JASMITHA newlineTitle of thesis : Studies on graft and cross compatibility of wild newlinebrinjal species with local brinjal (Solanum newlinemelongena) cultivars newlineDegree for which it is newlinesubmitted newline: DOCTOR OF PHILOSOPHY newlineFaculty : HORTICULTURE newlineMajor field : VEGETABLE SCIENCE newlineChairman of newlineAdvisory Committee newline: Dr. A. V. D. DORAJEE RAO newlineUniversity : Dr.Y.S.R. HORTICULTURAL UNIVERSITY newlineYear of submission : 2023 newlineABSTRACT newlineThe investigation on studies on graft and cross compatibility of wild brinjal newlinespecies with local brinjal (Solanum melongena) cultivars was carried out during the newlineyears 2021-22 and 2022-23 at College of Horticulture, Venkataramannagudem, newlinecomprising four major experiments. The first experiment was on the effect of GA3 newlineon seed germination and seedling growth in wild brinjal species, the second on newlinephenotypic evaluation of wild brinjal species, third on graft compatibility studies; newlineand the fourth one on cross compatibility. newlineThe first experiment on the effect of GA3 on seed germination and seedling newlinegrowth in wild brinjal species revealed that Solanum melongena cv. Dommeru newlineLocal exhibited the earliest germination on par with the other cultivar Pennada newlineLocal. Maximum germination percentage was noticed in Solanum melongena cv. newlineDommeru Local; GA3 concentration at 1000 ppm. The highest seedling vigour newlineindex was observed in Solanum melongena cv. Dommeru Local with GA3 at 1000 newlineppm and in the combination of Solanum indicum + GA3 at 1000 ppm. newlineThe second experiment on phenotypic evaluation of wild brinjal species newlinefacilitated for description of DUS characters. Erect genotype S. torvum had strong newlineleaf lobing. Leaf prickles were present in three species viz., S. ovum, S. newlinemammosum and S. viarum. Calices and pedicels were also prickled in these species newlineexcept S. torvum. The tallest plants at 180 DAT were observed in Solanum newlineseaforthianum. Solanum torvum recorded maximum plant spread both in EW and newlineNS directions at 180 DAT among the genotypes. Solanum melongena cv. Pennada newlineLocal was found earlier to Solanum melongena cv. Dommeru L