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Academic Research Journal of
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Academic Research Journal of Agricultural Science and Research Vol. 4(1), pp. 31-34. January, 2016. ISSN: 2360-7874 DOI: 10.14662/ARJASR2015.066
Full Length Research Effect of late blight of potato incited by Phytophthorainfestans (Mont.) de Baryon nitrogen contents of potato leaves
Muhammad Nasir Subhani1*, ShahbazTalib Sahi2, Abdul Rehman2 and Waqas Wakil3
1Institute of Agricultural Sciences, University of the Punjab, Lahore, Pakistan 2Department of Plant Pathology, University of Agriculture, Faisalabad, Pakistan 3Department of Agri. Entomology, University of Agriculture, Faisalabad, Pakistan
*For Correspondence: nasirsubhani@hotmail.com; nasirsubhani.iags@pu.edu.pk
Accepted 29 October 2015
Minerals are
the crucial part of plant nutrition and their presence in excess or
deficiencies may cause certain maladies in the plants either through
disturbing metabolism or plant physiology abnormally by favoring the
plant pathogens or discouraging the plant growth. Nitrogen availability
was the most important limiting factor for yield. Nitrogen content of 50
potato genotypes including 8 cultivars and 42 lines were tested from
three samples taken at different times, first from healthy plants after
50 days of crop planting before disease appearance, second from healthy
and diseased plant separately 30 days after the first appearance of the
late blight symptoms on the plants. Results of present study revealed
that there was an overall increase in the quantity of nitrogen in all
tested lines after disease appearance. This increase was ranged from 1.0
to 10.7 percent over the healthy plants of that same age group. Maximum
increase of 10.7 percent in FD 3-10 in nitrogen content after disease
appearance was observed, while minimum 1.0 percent increase in nitrogen
content was observed in line N 22. Increase in nitrogen content was also
observed in the healthy plants of all potato lines/cultivars which were
not infected by the disease but this increase might be due to aging
factor and was quit insignificant and unnoticeable. All though the
nitrogen content was slightly increased in the plants which were not
diseased than that of healthy plants which were tested at the time when
disease was not appeared. It is apparent from the above figures that the
increase in nitrogen content was more pronounced due to the effect of
disease and there was no or very slight effect of aging was observed.
Pathogen attack has significantly increased percent nitrogen in the
potato lines/cultivars under observation. How to cite this article: Subhani NM, Sahi S, Rehman A, Wakil W (2016). Effect of late blight of potato incited by Phytophthorainfestans (Mont.) de Baryon nitrogen contents of potato leaves. Acad. Res. J. Agri. Sci. Res. 4(1): 31-34.
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