STUDIES ON EFFECT OF HEAVY METAL CONTAMINATION ON GROWTH, UPTAKE AND QUALITY PARAMETERS OFCapsicum annuum Linn.

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dc.contributor.advisorSINGH, MOHINDER
dc.contributor.authorCHAUHAN, SHARMILA
dc.date.accessioned2019-02-08T09:05:07Z
dc.date.available2019-02-08T09:05:07Z
dc.date.issued2018-11
dc.description.abstractABSTRACT The present investigation entitled “Studies on effect of heavy metal contamination on growth, uptake and quality parameters of Capsicum annuum Linn.” was carried out in the Department of Environmental Science, College of Forestry, Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh during 2015 and 2016. Highest concentrations of heavy metals (Pb0.651 ppm, Cd-0.678 ppm, Cu-14.06 ppm and Zn-13.01 ppm) were observed in capsicum fruits collected from Chandigarh Sabji Mandi, followed by Solan mandi and local vegetable venders in Nauni. Higher concentrations of these metals were observed in off season as compared to main cropping season. In farmer’s fields, concentrations of Pb (0.583 ppm), Cd (0.587 ppm), Cu (12.91 ppm) and Zn (12.12 ppm) were found highest around Baddi industrial area and lowest in fruits collected from Oachghat and Sultanpur villages of Solan district. In pot experiment, the graded doses of Cd and Pb exerted significant influence on the morphological parameters like leaf area, number of branches, number of leaves, plant height, number of fruits, fruit yield, root dry weight and above ground biomass. Highest dose combination i.e. Cd40Pb200 exerted maximum adverse influences. Highest dose of Cd and Pb (Cd40Pb200) resulted in minimum leaf area (10.35 cm2), number of leaves (190.0), plant height (40.06 cm), mean number of fruits per plant (9.0) and root dry weight (1.39 g/plant). This treatment combination also caused 49.15 per cent reduction in fruit yield and 21.81 per cent decrease in the above ground biomass of capsicum. The chlorophyll contents in leaves of capsicum were found lowest (1.706 mg g-1) in Cd40Pb200ascompared to 2.059 mg g-1 in control.Ascorbic acid content in fruits was increased considerably with increase in levels of Cd and Pb which ranged between 113.19 and 120.31 mg g-1. The accumulation of Cd (17.07 mg kg-1) and Pb (174.75 mg g-1) in soil was also recorded at highest dose combination (Cd40Pb200). The maximum concentrations of Cd and Pb in above ground plant parts of capsicum were found maximum in stems followed by branches and leaves. The accumulation of these metals increased with the increase in doses of these metals used in the experiment. Highest uptake of Cd and Pb by above ground biomass of capsicum was estimated at highest dose combination (Cd40Pb200).Mycorrhizal fungi bioremedified the toxic effect of Cd and Pb in capsicum plants and improved various morphological and biochemical parameters. Mycorrhizal inoculations also resulted in lower build up of Cd and Pb in soil and various plant parts of capsicum.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810094157
dc.keywordseffect of heavy metal contamination on growth,uptake and quality parameters,Capsicum annuum Linn.en_US
dc.language.isoenen_US
dc.pages104+xxiiien_US
dc.publisherUHF, NAUNIen_US
dc.subEnvironmental Scienceen_US
dc.subjectnullen_US
dc.themeeffect of heavy metal contamination on growth,uptake and quality parameters,Capsicum annuum Linn.en_US
dc.these.typePh.Den_US
dc.titleSTUDIES ON EFFECT OF HEAVY METAL CONTAMINATION ON GROWTH, UPTAKE AND QUALITY PARAMETERS OFCapsicum annuum Linn.en_US
dc.typeThesisen_US
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