Impact of climate change variables on young coconut seedlings (Cocos nucifera L.) (Record no. 157881)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02593nam a22001817a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 551.6 |
| Item number | KAN/IM |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Kannan S |
| 245 ## - TITLE STATEMENT | |
| Title | Impact of climate change variables on young coconut seedlings (Cocos nucifera L.) |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc | Vellanikkara |
| Name of publisher, distributor, etc | Academy of Climate Change Education and Research |
| Date of publication, distribution, etc | 2016 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 125 |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | BSc-MSc (Integrated) |
| 520 3# - SUMMARY, ETC. | |
| Abstract | The research was conducted at ICAR-CPCRI, Kasaragod to study the impact of the major climate change variables viz. elevated CO2 [ECO2] and elevated temperature [ET] on growth parameters of coconut seedlings and to study short term interactive effects of drought with climate change variables in open top chamber facility. Seedlings were exposed to ambient (Shade net condition), OTC control (atmospheric CO2 and temperature) [ECO2] (550 and 700 ppm), [ET] (3°C above ambient) and [ECO2+ET] (550 ppm CO2 + 3°C). In each OTC, two set of seedlings were maintained at 100 per cent and 25 percent field capacity, respectively. Seedlings in [ECO2] treatments had a positive effect on plant height, leaf area and biomass production. [ECO2] increased photosynthesis (PN), stomatal conductance and decreased osmotic potential (OP) but there was no significant change in leaf water potential (LWP), Fv/Fm ratio and transpiration rate. This showed improved water use efficiency in coconut seedlings. [ECO2] led to higher carbonic anhydrase, peroxidase (POD) and polyphenol oxidase (PPO) activity and increased the amount of chlorophyll content and index (CI), soluble protein and phenolic content and lipid peroxidation (LP), super oxide dismutase and epicuticular wax accumulation was significantly less. [ET] decreased biomass by 27 per cent and caused reduction in leaf area and PN. The seedlings under [ET] had the least LWP, chlorophyll content, CI, and Fv/Fm ratio. LP was higher, so the POD and PPO were higher under [ET], [ECO2+ ET] stimulated plant height, leaf area, PN and biomass. It reduced Fv/Fm ratio and enhanced soluble protein. Water deficit stress decreased plant PN, so it caused reduction in biomass and with leaf area under [ET] and no significant difference was observed in OP. [ECO2] stimulated the growth of plants under water deficit stress to certain extent and [ET] induced low growth of coconut seedlings under water deficit was compensated by [ECO2]. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Climate change education and research |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Climate change adaptation |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mary Regina F (Guide) |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | http://krishikosh.egranth.ac.in/handle/1/5810056594 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | |
| Item type | Theses |
| Not for loan | Collection code | Permanent location | Current location | Shelving location | Date acquired | Full call number | Barcode | Date last seen | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Not For Loan | Reference Book | KAU Central Library, Thrissur | KAU Central Library, Thrissur | Theses | 2017-12-12 | 551.6 KAN/IM | 174049 | 2017-12-12 | Theses |