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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.2017.6(7): 4512-4520
DOI: https://doi.org/10.20546/ijcmas.2017.607.470


Effect of Meteorological and Micrometeorological Parameters on Stripe Rust (Puccinia striformis f. sp. tritici) Severity of Wheat
Sarabjot Kaur Sandhu1*, L.K. Dhaliwal1 and P.P.S. Pannu2
1School of Climate Change and Agricultural Meteorology, PAU, Ludhiana, Punjab, India
2Department of Plant Pathology, PAU, Ludhiana, Punjab, India
*Corresponding author
Abstract:

The field experiment was conducted during rabi seasons of 2012-13 and 2013-14 at the Research Farm, School of Climate Change and Agricultural Meteorology, PAU, Ludhiana. Wheat varieties HD 2967, PBW 550 and PBW 343 were sown under three row spacing viz. 15 cm, 22.5 cm and 30 cm. Yellow rust severity was recorded at weekly intervals. Disease severity index was higher (100%) during rabi 2012-13 as compared to 2013-14 (91%). Among different row spacing the disease severity was maximum (100 %) in 15 cm row spacing followed by 22.5 cm and minimum in 30 cm spacing during both the years. Among three varieties HD 2967 was resistant to yellow rust. During both years the maximum temperature, minimum temperature and sunshine hours were positively correlated whereas morning and evening relative humidity were negatively correlated with average disease severity. Highly significant value of R2 (0.91 & 0.90) was found when maximum meteorological parameters were combined in PBW 343 & PBW 550 respectively. Relationships between disease severity and micrometeorological parameters viz. Canopy temperature and relative humidity within crop canopy gave higher R2 values. Higher R2 values of Humid Thermal Ratio (HTR), Special Humid Thermal Ratio (SHTR) and disease severity indicated that HTR and SHTR can be used as a disease predictor.


Keywords: Canopy temperature, Relative humidity, Wheat, Stripe rust, Humid Thermal Ratio
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How to cite this article:

Sarabjot Kaur Sandhu, L.K. Dhaliwal and Pannu, P.P.S. 2017. Effect of Meteorological and Micrometeorological Parameters on Stripe Rust (Puccinia striformis f. sp. tritici) Severity of Wheat.Int.J.Curr.Microbiol.App.Sci. 6(7): 4512-4520. doi: https://doi.org/10.20546/ijcmas.2017.607.470