Management of Late Blight and Sucking Insect Pests of Potato with Application of Salicylic Acid and β-aminobutyric Acid under Greenhouse Conditions
Muhammad Usman Ghazanfar1, Waqas Raza1*, Waqas Wakil2,3, Imtiaz Hussain4 and Misbah Iqbal Qamar1
1Department of Plant Pathology, College of Agriculture, University of Sargodha, Pakistan; 2Department of Continuing Education, University of Agriculture, Faisalabad, Pakistan; 3Department of Entomology, University of Agriculture, Faisalabad, Pakistan; 4Department of Animal Sciences, College of Agriculture, University of Sargodha, Pakistan.
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Figure 1
Effect of SA and BABA dose on percent protection against Phytophthora infestans on potato. Bars with the same letter are not significantly different, P = 0.05, Tukey’s HSD test.
Figure 2
Effect of SA and BABA dose on lesion size against Phytophthora infestans on potato. Bars with the same letter are not significantly different, P = 0.05, Tukey’s HSD test.
Figure 3
Effect of SA and BABA dose on numbers of lesions against Phytophthora infestans on potato. Bars with the same letter are not significantly different, P = 0.05, Tukey’s HSD test.
Figure 4
Percent mean mortality of potato aphid, thrips and whitefly on potato leaves treated with aqueous solutions of SA and BABA. Bars with the same letter are not significantly different, P= 0.05, Tukey’s HSD test.
Figure 5
Peroxidase (POX) activity in potato leaves after treatment with SA or BABA. Assays of POX activities performed 15 days post-inoculation. Bars with the same letter are not significantly different, P= 0.05, Tukey’s HSD test.
Figure 6
Polyphenol oxidase (PPO) activity in potato leaves after treatment with SA and BABA. Assays of PPO activity performed 15 days post-inoculation. Bars with the same letter are not significantly different, P = 0.05, Tukey’s HSD test.