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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

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

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Original Research Articles

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(1): 1786-1795
DOI: https://doi.org/10.20546/ijcmas.2018.701.216


Effect of Zinc and Boron Application on Leaf Area, Photosynthetic Pigments, Stomatal Number and Yield of Cashew
Lakshmipathi*, J.D. Adiga, D. Kalaivanan, B.M. Muralidhara and P. Preethi
ICAR-Directorate of Cashew Research, Puttur-574 202, Karnataka, India
*Corresponding author
Abstract:

An experiment was conducted to study the effect of exogenous application of boron and zinc at different concentrations at three important growth stages (flushing, flowering and fruiting) on leaf area, chlorophyll content, carotenoids, stomatal count and yield of cashew var. Bhaskara. Irrespective of growth stages, foliar application of zinc sulphate (0.5%) + borax (0.1%) was found to be superior in all the parameters. Out of six treatments, the highest chlorophyll content (chl a, chl b and chl t), carotenoids and leaf area were recorded in trees sprayed with zinc sulphate (0.5%) + borax (0.1%). At flushing stage, spraying with zinc sulphate (0.5%) + borax (0.1%) resulted in highest stomatal number (31.05) whereas unsprayed (control) trees recorded least stomatal number (12.18). Thus, leaf area, chlorophyll content, carotenoids and stomatal count were increased in trees sprayed with above combination of micronutrients than unsprayed trees. Spraying of zinc sulphate (0.5%) + borax (0.1%) recorded highest nut yield (10.80 kg/tree), whereas unsprayed trees recorded least nut yield (3.20 kg/tree). This study demonstrated the potential of zinc sulphate (0.5%) + borax (0.1%) in improving various biochemical parameters viz., chlorophyll ‘a’, chlorophyll ‘b’, total chlorophyll, carotenoids and leaf area in cashew which are important determinants in increasing cashew nut production.


Keywords: Cashew, Zinc, Boron, Chlorophyll, Carotenoids, Stomatal count and yield
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How to cite this article:

Lakshmipathi, J.D. Adiga, D. Kalaivanan, B.M. Muralidhara and Preethi, P. 2018. Effect of Zinc and Boron Application on Leaf Area, Photosynthetic Pigments, Stomatal Number and Yield of Cashew.Int.J.Curr.Microbiol.App.Sci. 7(1): 1786-1795. doi: https://doi.org/10.20546/ijcmas.2018.701.216