International Journal of Plant Protection

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Microclimate Modification to Manage Yellow Rust Incidence in Wheat


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1 School of Climate Change and Agricultural Meteorology, Punjab Agricultural University, Ludhiana (Punjab), India
     

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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, Punjab Agricultural University, Ludhiana. Wheat varieties HD 2967, PBW 550 and PBW 343 were sown under two row direction viz., North-South (N-S) and East-West (E-W). Yellow rust incidence was recorded at weekly intervals. Among different row direction the disease incidence was higher under N-S row direction as compared to E-W row direction during both the years. Among three varieties HD 2967 was highly resistant to yellow rust. During both the years maximum temperature, minimum temperature and sunshine hours were positively correlated whereas morning and evening relative humidity were negatively correlated with yellow rust incidence. Highly significant value of R2 (0.95 and 0.93) was foundwhen maximum meteorological parameters were combined in PBW 343 in crop sown under North-South and East-West row direction, respectively.

Keywords

Canopy Temperature, Relative Humidity, Wheat, Yellow Rust, Humid Thermal Ratio.
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  • Microclimate Modification to Manage Yellow Rust Incidence in Wheat

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Authors

Sarabjot Kaur Sandhu
School of Climate Change and Agricultural Meteorology, Punjab Agricultural University, Ludhiana (Punjab), India
L . K. Dhaliwal
School of Climate Change and Agricultural Meteorology, Punjab Agricultural University, Ludhiana (Punjab), India

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, Punjab Agricultural University, Ludhiana. Wheat varieties HD 2967, PBW 550 and PBW 343 were sown under two row direction viz., North-South (N-S) and East-West (E-W). Yellow rust incidence was recorded at weekly intervals. Among different row direction the disease incidence was higher under N-S row direction as compared to E-W row direction during both the years. Among three varieties HD 2967 was highly resistant to yellow rust. During both the years maximum temperature, minimum temperature and sunshine hours were positively correlated whereas morning and evening relative humidity were negatively correlated with yellow rust incidence. Highly significant value of R2 (0.95 and 0.93) was foundwhen maximum meteorological parameters were combined in PBW 343 in crop sown under North-South and East-West row direction, respectively.

Keywords


Canopy Temperature, Relative Humidity, Wheat, Yellow Rust, Humid Thermal Ratio.

References