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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 6
First page : (207) Last page : (211)
Article doi: : http://dx.doi.org/10.18782/2320-7051.6790

Evaluation of Promising Hybrids and Varieties of Coconut in East Coast Region of Andhra Pradesh

G. Ramanandam*, E. Padma, M. Kalpana, K. Ravindra Kumar, N.B.V.C. Rao and
H.P. Maheswarappa

AICRP on Palms, Horticultural Research Station, Ambajipeta
Dr. Y.S.R. Horticultural University, Andhra Pradesh
*Corresponding Author E-mail: drramanandam@gmail.com
Received: 6.09.2018  |  Revised: 17.10.2018   |  Accepted: 26.10.2018  

 ABSTRACT

For the past hundreds of year’s trees like Dalbergia sissoo (Shisham), Acacia nilotica (Kikar), Prosopis cinneraria (Khejri) etc. have inhabited vast areas in the plains of Afghanistan, Pakistan, India, Nepal and Myanmar.  These have also been widely used for afforestation in many parts of the country except in the very hot, cold and wet tracts.  These have good atmospheric N2- fixing ability, therefore, are extensively planted in social and agro-forestry programmes. In order to evaluate the effect of soil salinity, present investigation was conducted on two tree species i.e. Dalbergia sissoo Roxb. ex DC (Shisham) and Acacia nilotica (L.) willd. ex Delile (Kikar) growing under field conditions in Hisar district during the year 2011-2012.  Mean relative water content was 57.4 % which was significantly lower than 37.6 % obtained under for the trees growing at saline sites. The mean relative water content was 60.9 % under non-saline conditions which was significantly higher than 32.5 % obtained under saline environment. The mean chlorophyll content in Dalbergia sissoo also showed significant decrease in the saline versus non-saline site trees. The mean chlorophyll content was 1.09 mg/g under non-saline conditions which was significantly higher than 1.0 mg/g obtained under saline environment. Under non saline conditions the mean total soluble sugar was 16.06 mg/g which was significantly lower than 19.08 mg/g obtained under saline the environment. The mean value of total soluble sugar in Acacia nilotica also showed significant increase in saline over non-saline site trees. Hence, the mechanism of salt tolerance is relatively better in Acacia nilotica than in Dalbergia sissoo as found from physiological and biochemical studies.

Key words: Acacia nilotica, Chlorophyll, Dalbergia sissoo, Relative water content, Salinity and Total soluble sugar

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Ramanandam, G., Padma, E., Kalpana, M., Ravindra Kumar, K., Rao , N.B.V.C. and Maheswarappa, H.P., Evaluation of Promising Hybrids and Varieties of Coconut in East Coast Region of Andhra Pradesh, Int. J. Pure App. Biosci.6(6): 207-211 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6790