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International Journal of Agricultural Research
  Year: 2017 | Volume: 12 | Issue: 1 | Page No.: 41-51
DOI: 10.3923/ijar.2017.41.51
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Down-regulation of Damping-off and Root Rot Diseases in Lentil Using Kinetin and Trichoderma

Kamar Mohamed Abd El-Hai, Abeer Abd El-Wahab Ali and Mohamed Ahmed El-Metwally

Background: Damping-off and root rot diseases caused by several soil-borne pathogenic fungi are the most responsible for high reduction in lentil yield. Methodology: Evaluate the efficiency of kinetin and Trichoderma for controlling damping-off and root rot diseases and increasing lentil productivity compared with Rizolex-T50 fungicide. Rhizoctonia solani and Fusarium oxysporum are the common causal pathogens which isolated from infected lentil collected from different fields of Dakahlia governorate. Results: In greenhouse: Both tested fungi were pathogenic and caused pre- and post-emergence damping-off. Lentil cultivar Giza 9 was more susceptible for infected with both pathogenic fungi. The F. oxysporum was most aggressive in post-emergence damping-off. On the other side, Rizolex-T50 recorded the highest reduction in emergence damping-off in both lentil cultivars, Trichoderma harzianum come next. Anatomically, R. solani caused complete disruption of the epidermal and cortical cells in both cultivars of lentil roots, Giza 9 was very affective. In field: Giza 4 cultivar was more tolerant for infected with damping-off and root rot diseases under natural infection. The application of both Trichoderma species and two concentrate of kinetin led to significant reduction in damping-off and dead plants. The T. harzianum was more effective. Giza 4 was the best cultivar in photosynthetic pigments as compared with Giza 9. Except Rizolex-T50, all treatments increased significantly photosynthetic pigments. Kinetin at 100 ppm was more effective. While T. harzianum gave the highest values of total phenols content. Kinetin at level 100 ppm gave the highest average of growth parameters (plant height and branches number plant–1) and yield components (pods number plant–1, 1000-seed weight and seed yield (kg fed–1)). Giza 4 cultivar recorded the highest yield, while Giza 9 was the best in seed quality. The highest seed protein percentage occurred under the application of T. viride. While, kinetin at 100 ppm gave the high phosphorus percentage in the seed of lentil. Conclusion: Therefore, application of kinetin at 100 ppm as well as T. harzianum as seed soaking could be used for controlling soil-borne diseases in addition to improving growth and productivity of lentil.
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How to cite this article:

Kamar Mohamed Abd El-Hai, Abeer Abd El-Wahab Ali and Mohamed Ahmed El-Metwally, 2017. Down-regulation of Damping-off and Root Rot Diseases in Lentil Using Kinetin and Trichoderma. International Journal of Agricultural Research, 12: 41-51.

DOI: 10.3923/ijar.2017.41.51






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