PHENOTYPIC STABILITY STUDIES IN BRINJAL (SOLANUM MELONGENA L.)

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dc.contributor.advisorSamnotra, R.K.
dc.contributor.authorBhushan, Anil
dc.date.accessioned2016-11-22T13:45:40Z
dc.date.available2016-11-22T13:45:40Z
dc.date.issued2016
dc.description.abstractThe present investigation entitled “Phenotypic stability studies in brinjal (Solanum melongena L.) was carried out at Vegetable Experimental Farm, Division of Vegetable Science & Floriculture, Sher-e-Kashmir University of Agricultural Sciences and Technology, Chatha during 2013-14 and 2014-15 to assess the performance of genotypes across seasons and years for their adaptability under wide range of environments through phenotypic stability studies using Eberhart and Russell regression model. Twenty five brinjal genotypes were evaluated for yield and its components under six environments comprising of six different seasons viz., E1: Autumn-Winter2013; E2: Spring-Summer, 2014; E3: Rainy, 2014; E4: Autumn-Winter, 2014; E5: Spring-Summer, 2015 and E6: Rainy, 2015. Observations were recorded for 14 quantitative traits viz., days to 50 per cent flowering, days to first picking, fruit length (cm), fruit diameter (cm), number of fruits per plant, average fruit weight (g), number of leaves per plant, plant height (cm), number of primary branches per plant, leaf area (cm2), marketable yield per plant (kg), unmarketable yield per plant (kg), fruit yield per plant (kg) and fruit yield per hectare (q), two qualitative traits viz., ascorbic acid content (mg/100g) and total phenol content (mg/100gm) and five biotic stress traits viz., shoot borer infestation (%), fruit borer infestation (%), spider mite infestation (%), little leaf incidence (%) and phomopsis blight incidence (%). For a given trait, a desirable, widely adapted and stable genotype are defined as one with an individual mean performance greater than the average mean, a regression coefficient (bi=1), and no deviation from mean squares (S2di=0). Highly significant mean sum of squares for genotypes, environments and genotype × environment interaction were recorded for all the traits except non significant G x E interactions for number of leaves per plant, number of primary branches per plant, ascorbic acid content and little leaf incidence indicating that both linear as well as non linear components were important in building up total G × E interaction. On the basis of stability parameters (µ, bi and S2di) genotypes PPL-74, Chhaya, PBH-3, Shamli, Pusa Kranti and Pusa Uttam were suitable under favourable environments whereas, genotypes, Rajni, Abhishek and PPL were identified suitable for unfavourable environment and genotypes Pusa Ankur and Navkiran Improved were stable genotypes for days to 50% flowering; genotypes Pusa Uttam, PBH-3 and Shamli were most stable for days to first fruit picking; genotypes Navkiran Improved and MH-80 were identified as widely adapted to all the environments whereas Sandhya, Pusa Ankur and PBH-3 were adapted to unfavourable environments for number of fruits per plant; Genotype PPL-74 found adapted to all type of environments and Sandhya, Chhaya, Abhishek and PPR were found to be specifically adapted to unfavourable environments for average fruit weight. Genotypes Chhaya and PPL were found adapted to all types of environments for marketable yield per plant and PPR was found well adapted for all types of environments for fruit yield per hectare whereas Arka Nidhi and BR-14 were adapted to unfavourable environments for marketable yield per plant and Punjab Sadabahar, Nisha Improved and Arka Keshav were specifically adapted under unfavourable environments. For quality traits, genotype Chhaya was identified as widely adapted to all the environments for ascorbic acid content whereas none of the genotypes was found adapted to all types of environments. For shoot borer infestation, genotypes Rajni and Pusa Kranti were found adapted to all types of environments where as Shamli, PPL-74 and Arka Nidhi were specifically adapted to unfavourable environment. For fruit borer infestation Pusa Kranti and Pusa Ankur were adapted to all type of environments and PPL-74 and Sandhya were adapted to unfavourable environments. For phomopsis blight, genotype Sandhya was adapted to all type of environments whereas Puneri Kateri, PPL-74, Shamli, Chhaya and Abhishek were found adapted to unfavourable environments.en_US
dc.identifier.otherJ-12-D-161-A
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/86994
dc.language.isoenen_US
dc.publisherDivision of Vegetable Science and Floriculture, Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammuen_US
dc.research.problemPHENOTYPIC STABILITY STUDIES IN BRINJAL (SOLANUM MELONGENA L.)en_US
dc.subVegetable Scienceen_US
dc.these.typePh.D
dc.titlePHENOTYPIC STABILITY STUDIES IN BRINJAL (SOLANUM MELONGENA L.)en_US
dc.typeThesisen_US
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