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dc.contributor.adviserPatricio, Hope G.
dc.contributor.authorGuzman, Jesus G. Jr.
dc.date.accessioned2021-04-27T05:53:58Z
dc.date.available2021-04-27T05:53:58Z
dc.date.issued2006
dc.identifier.citationGuzman, J. S., Jr. (2006). A comparative study on the cadmium and zinc uptake by kangkong (Ipomoea aquatica forsk.) and pechay (Brassica chinensis l.) grown in natural soil and coconut coir dust treated with cadmium sulfate or zinc sulfateen_US
dc.identifier.urihttps://hdl.handle.net/20.500.12852/797
dc.descriptionAbstract onlyen_US
dc.description.abstractThe study was conducted at Ungka I, Pavia, Iloilo from May to June 2006. The plant tissue samples were prepared at Central Philippine University and then analyzed by atomic absorption spectroscopy at the University of the Philippines Visayas. This study aimed to determine the effects of zinc and cadmium treatments on pechay and kangkong and to compare the results from the two experimental plants. It also aimed to study coir dust as a soil substitute. Results of the study showed that pechay and kangkong can grow without showing any serious symptoms of toxicity in growing media containing toxic levels of zinc (100 ppm) and cadmium (8 ppm). The negligible insect damage observed on cadmium treated plants supports the theory that certain plants hyper-accumulate heavy metals for defense. Data on biomass production show that coir dust can be a good substitute for soil in potted plants especially for plants that respond to high levels of organic matter like kangkong. Data reveal a few similarities in the uptake of zinc and cadmium by pechay and kangkong. Literature identify pechay as a hyper-accumulator with the characteristic shoot > root trend in its uptake of metals. But in this study, pechay manifested this trend only in its zinc levels for plants grown in artificial medium. On the other hand, kangkong grown in soil showed the shoot > root trend. Results contradicted cited literature about the competition of zinc and cadmium in plant uptake. Zinc levels of cadmium treated plants were relatively high implying an enhancement of zinc uptake rather than competition. Although the shoot > root trend was not consistently observed in kangkong, data show that it can hold high levels of cadmium and especially zinc in its root even with the short growing period involved. The tolerant and hardy characteristics observed plus the high levels of the metals in its root make kangkong a potential material for rhizo-absorption.en_US
dc.format.extentxii, 92 leavesen_US
dc.language.isoenen_US
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Philippines*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/ph/*
dc.subject.ddcGSL Theses 630.72 G994en_US
dc.subject.lcshChinese cabbageen_US
dc.subject.lcshCadmiumen_US
dc.subject.lcshZincen_US
dc.subject.lcshZinc sulfateen_US
dc.subject.lcshCadmium sulfateen_US
dc.subject.lcshZinc--Toxicologyen_US
dc.subject.lcshCadmium--Toxicologyen_US
dc.titleA comparative study on the cadmium and zinc uptake by kangkong (Ipomoea aquatica forsk.) and pechay (Brassica chinensis l.) grown in natural soil and coconut coir dust treated with cadmium sulfate or zinc sulfateen_US
dc.typeThesisen_US
dc.description.bibliographicalreferencesIncludes bibliographical refencesen_US
dc.contributor.chairDavid, Fely P.
dc.contributor.committeememberFamoso, Erlinda B.
dc.contributor.committeememberMendiola, Elnora F.
dc.contributor.committeememberSeredrica, Ma. Victoria C.
dc.contributor.departmentSchool of Graduate Studiesen_US
dc.description.degreeMaster of Science in Agriculture major in Agronomyen_US
local.subjectKangkongen_US
local.subjectPechayen_US
local.subject.scientificnameIpomoea aquaticaen_US
local.subject.scientificnameBrassica chinensisen_US


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달리 명시되지 않는 한이 항목의 라이선스는 다음과 같이 설명됩니다.Attribution-NonCommercial-NoDerivs 3.0 Philippines