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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(9): 3643-3652
DOI: https://doi.org/10.20546/ijcmas.2018.709.453


Seasonal Variations in the Uptake and Status of the Secondary Nutrients in Leaf Terminals in Cashew in Coastal Districts of Andhra Pradesh
N. Sathi Babu1, V. Chandra Sekhar2 and K. Dhanasree3
1Department of Horticulture, Agricultural College, Bapatla, Andhra Pradesh-522101, India
2Department of Plant pathology, Agricultural College, Naira, Srikakulam, Andhra Pradesh, India
3Department of Agricultural Extension, Agricultural College, Rajendranagar, Andhra Pradesh, India
*Corresponding author
Abstract:

Investigations on the seasonal fluctuations in the uptake and status of the secondary nutrients (Ca, Mg and S) in both fruiting and non-fruiting terminals in cashew carried out during 2006 and 2007 in twelve plantations spread over the cashew growing districts of north coastal Andhra Pradesh revealed that the nutrient contents ranged from 0.216 to 1.532% (low to high), 0.132 to 0.226% (low to adequate) and 0.087 to 0.174% (low to high) with respect to Ca, Mg, and S, respectively. In both cases, the peak was observed during September to November, indicating depletion of the nutrients due to mobility to the developing fruits. Thereafter, there was a decline in leaf Ca content, possibly due to utilization by sinks of initiation and differentiation of flower buds. As regards Mg, the non-fruiting terminals in general recorded higher uptake during the same period and a declining trend was observed from May to July. There was increase in leaf S from July to January followed by a decline thereafter till March. Presumably, the greater nutrient concentration in both fruiting and non-fruiting terminals during the period of November to January coincided with the flower bud initiation and formative stage of the plant. Non-fruiting terminals showed higher nutrient contents in comparison to the fruiting terminals during all the months under study.


Keywords: Cashew (Anacardium occidentale L.), Secondary nutrients, Leaf Terminals
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How to cite this article:

Sathi Babu, N., V. Chandra Sekhar and Dhanasree, K. 2018. Seasonal Variations in the Uptake and Status of the Secondary Nutrients in Leaf Terminals in Cashew in Coastal Districts of Andhra Pradesh.Int.J.Curr.Microbiol.App.Sci. 7(9): 3643-3652. doi: https://doi.org/10.20546/ijcmas.2018.709.453