Evaluating the efficiency of selected species of Bio-control fungi on several chemical contents of rice leaves; Oryza sativa L., Class Jassmine

Evaluating the efficiency of selected species of Bio-control fungi on several chemical contents of rice leaves; Oryza sativa L., Class Jassmine

Nihad H. Mutlag1 , Ahmed M. Hussein2,Rafid M.Abdulaali3

1Ecology department-Faculty of Science– Kufa University,Iraq

2,3Faculty of Agriculture, Kufa University, Iraq.

       nuhadh.alazerjawi@uokufa.edu.iq

Abstract

This study was conducted to evaluate the effect of using  biocontrol fungi –  Trichoderma harzianum .austaralian(T.h.a) . and Trichoderma harzianum .tahadi(T.h.t) and  Chaetumium elatum( C.e) isolates on contents of  rice leaves ) Oryza sativa L.( class jasmine of phenols, alkaloids,and hormones( zeatin, gebberllic acid,indol acitic acid) .To attaining these aims , two experements were carryied out in two regions at Rice Research Center(Site 1) , and Agriculture college – AL-Najaf  province(Site 2).

The results of this study can be summarized  that the suspension (10)-4 of biocontrol agent T.h.a gave a significant differences in concentrations of phenols in rice leaves for treatment: Soil + hay + NP + T.h.a which reached 0.378 ,0.363 ppm in site 1 and site 2 ,in compare with control treatment which gave 0.251,0.245  ppm, respectivly. Also T.h.a. gave a significant differences in concentrations of alkaloids in rice leaves for treatment: Soil + hay + NP + T.h.a which reached 1.67,1.51 µg/ml in site 1 and site 2 ,in compare with control treatment which gave 1.19,1.15 µg/ml ., respectivly  While T.h.a attained  the highest concentrations of hormones ( zeatin, gebberllic acid,indol acitic acid) in rice leaves for treatment: Soil + hay + NP + T.h.a which reached (0.0941, 53.84, 0.287) ppm, at site1  and (0.0835, 44.52, 0.268) ppm for site 2 ,in compare with control treatment which gave ( 0.0712, 51.12, 0.210) ppm with site 1 and (0.0523, 42.10, 0.174)ppm for site2 ,respectively.