Effect Of Marine Algae Extract And Trichoderma On The Growth And Production Qualities Of Petunia Hybrida

Abstract

The study was carried out at the University of Anbar, College of Agriculture, Department of Horticulture and Landscape Engineering, to study the effect of seaweed extract and Trichoderma fungus on the growth characteristics and chemical content of Petunia hybrida plant. The experiment was designed according to the randomized completely block design (RCBD), Treatment included three levels of Trichoderma fungus, 0, 5, and 10 grams per kilogram of the weight of  soil in the Pot, in a way that touches the roots of the plants. The fungus isolate was obtained from Department of Plant Protection at the College of Agriculture, University of Anbar. The second factor included four concentrations of seaweed extract  0, 100, 200, and 300 mg L^-1, Applied two times: the first spray two weeks after planting the seedlings, and the second spray one month after the first spray,. Obtained results of the study summarized the superiority  of  Trichoderma mushrooms at the level of 10 g per Pot in the total leaf area , Main stem diameter average , relative leaf content of nitrogen, phosphorus, chlorophyll, average number of flowers, average flower diameter, and carotenoids , Infection rate of Trichoderma fungus , and number of spores which amounted to 682.484cm²  6.926 mm, 1.173%, 0.394%, 26.263, 25.034 flowers per plant^-1, 29.780 mm, and 2.134 mg per 100, 47.182%  , 85.806 spores 10 g^-1  soil. the results of marine algae extract showed the main stem diameter average, relative leaf content of nitrogen, phosphorus, chlorophyll, average number of flowers, average flower diameter, and carotenoids, Infection rate of Trichoderma fungus, and number of spores that recorded 7.381mm, 1.702%, 0.418%, 26.734, 28.06 plant flower^-1, 31.746 mm, and 2.333 mg per 100 g fresh weight, 49.408% , 114.546  spores 10 g^-1 correspondingly.