PJB-2023-597
EVALUATION AND SCREENING STUDIES OF IDENTIFIED PUDUKKOTTAI LOCAL BRINJAL FOR YIELD AND BIOTIC STRESS (Solanum melongena L.)
R.JAYAVALLI
Abstract
The Evaluation studies of Identified Pudukkottai local Brinjal was conducted during 2018-2019 in Agricultural College & Research Institute, Kudumiyanmalai of Pudukkottai district of Tamil Nadu with an objective to identify the elite genotypes to the Farmers. Since, it was a continuous study Performance assessment of Pudukkottai local Brinjal in villages in and around Pudukkottai district, Tamil Nadu from 2017-2018 of which 2 genotypes were shortlisted based on their superior characters. Various morphometric and quality characters were observed in all the 4 genotypes and finally two best performing genotypes were selected. In this study, closer study of two selected best performing genotypes G1 (sellugudi) , G2 (alavayal) were compared with other popular varieties like G3 (CO 2), G4 (PLR 1), G5 (PLR2), G6 (KKM1), G7 (VRM Thorny), G8 (PPI) and G9 (VRM Non thorny)). were evaluated based on PPV & FRA descriptor.
The plant height showed a variation ranging from 90.00 cm to 45.09 cm with mean of 69.00 cm. Plant width showed a variation ranging from 68.40 to 32.90 cm with mean of 51.03 cm. Out of the nine genotypes studied for plant growth habit, all are having semi spreading growth habit and G5 is having erect growth habit. Regarding, stem pubescence, G6 and G7 are having strong stem pubescence.
Leaf characters viz., Leaf length, Leaf width, Leaf spininess, Leaf blade colour, Colour of veins, Intensity of colour of veins exhibited considerable variations. The leaf length showed a variation from 15.00 cm to 9.25 cm with the mean of 11.79 cm. The width showed a variation from 9.0 cm to 3.50 cm with the mean of 7.10 cm. Genotypes viz., G7 showed presence of spines in leaves, G1, G2, G5 and G9 showed purple colouration of veins and G1, G5 showed strong intensity of vein colouration.
Flower characters like Flower size, Flower colour, Flowering time, Number of flowers per plant were observed. From the observations, G7 and G8 have large sized flowers. G1, G2, G4 and G6 have medium sized flowers. G3 and G5 have small sized flower. Genotypes G1, G4, G5 have dark purple coloured flowers. Other genotypes have light purple colour flowers. Regarding flowering period G3, G5 and G9 showed an late flowering period of more than 75 days. Other genotypes showed medium flowering period of 65 to 75 days. Number of flowers per plant showed a variation from 5.00 to 8.00 with a mean of 5.88.
Variation in fruiting pattern was observed as follows. Fruit diameter (cm), Fruit Length (cm) for the selected brinjal genotypes was observed. The genotypes G2, G3, G5 and G9 are having solitary fruiting pattern. G1, G4, G7 and G8 are having cluster fruiting pattern and G6 is having mixed fruiting pattern. Fruit length showed a variation of 13.50 cm to 6.15 cm with a mean of 9.50 cm. Fruit diameter showed a variation of 12.50 cm to 4.00 cm with a mean of 6.20 cm. G2 and G8 showed globular shape and G9 showed obovate shape and other genotypes showed ovoid shape. Fruit stripes were found in G1, G3. Spininess was found more in G7. G1 showed a higher fruit yield of 45.00 t/ha followed by G7 with a yield of 40.00 t/ha. Fruit to seed ratio was found to be more in G6 followed by G1. Lesser fruit borer incidence was observed in G2.
In a nutshell, based on the yield and in quality aspects, the genotype G1 (sellugudi) was found to be highly promising. Hence, to recommend the G1 (sellugudi) brinjal suitable for Pudukkottai district brinjal growing farmers.
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