Effect of chemical treatment, method and time of sowing on seed germination of ornamental trees

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dc.contributor.advisorGrewal, H.S.
dc.contributor.authorMarry Santhi Sundeep
dc.date.accessioned2018-02-05T09:17:06Z
dc.date.available2018-02-05T09:17:06Z
dc.date.issued2017
dc.description.abstractThe present investigations entitled “Effect of chemical treatment, method and time of sowing on seed germination of ornamental trees” were carried out at the Research Farm of the Department of Floriculture and Landscaping, Punjab Agricultural University, Ludhiana during the year 2015- 2017. Ten trees were selected namely Alstonia scholaris, Cedrella toona, Chukrasia tabularis, Delonix regia, Jacaranda acutifolia, Koelreuteria paniculata, Melia azedarach, Mimusops elengi, Peltophorum ferrugineum and Putranjiva roxburghii with water soaking, mechanical and chemical scarification treatments. Chemical scarification was given by H2SO4 (50%), KNO3 (0.3%) and thiourea (0.5%). In sub treatments method of sowing i.e. 1) polythene bags 2) raised bed and the sowing was done in June and March to find out the best method of sowing season. Treatments were replicated three times under factorial randomized block design. Maximum germination under mechanical scarification was noted in Delonix regia, Melia azedarch in March and Cedrella toona and Chukrasia tabularis in June while under chemical scarification maximum germination percentage was recorded in Mimusops elengi, Peltophorum ferrugineum and Putranjiva roxburghii with H2SO4 treatment over mechanical and control. KNO3 treatment resulted in higher germination percentage in Alstonia scholaris and Jacaranda acutifolia than other treatments. However, the treatment of Koelreuteria paniculata seeds failed to initiate germination in in both the seasons in polythene bags as well as on raised bed. Days taken to germination was less under H2SO4 treatment in Delonix regia and Mimusops elengi but in Alstonia scholaris, Jacaranda acutifolia and Cedrella toona minimum days taken for germination were recorded in KNO3 treatment. The maximum seedling height was observed in June as compared to March. Numbers of leaves were more in June in polythene bags as compared to March on raised beds. Maximum survival percentage was recorded in of Alstonia scholaris, Delonix regia and Mimusops elengi in KNO3 treatment. Maximum leaf area was recorded in Alstonia scholaris in KNO3 treatment but in Mimusops elengi, Peltophorum ferrugineum and Putranjiva roxburghii maximum leaf area was recorded H2SO4 treatment.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810040394
dc.keywordsGermination, Seed, Chemical scarification, Mechanical scarification, polythene bagsen_US
dc.language.isoenen_US
dc.pages81en_US
dc.publisherPunjab Agricultural University, Ludhianaen_US
dc.research.problemEffect of chemical treatment, method and time of sowing on seed germination of ornamental treesen_US
dc.subFloriculture and Landscapingen_US
dc.subjectnullen_US
dc.themeEffect of chemical treatment, method and time of sowing on seed germination of ornamental treesen_US
dc.these.typeM.Scen_US
dc.titleEffect of chemical treatment, method and time of sowing on seed germination of ornamental treesen_US
dc.typeThesisen_US
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