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Response of Peppermint Plant ( Mentha piperita L.) to Foliar application of Garlic and Nitrogen Fertilizer on Vegetative properties and Essential Oil Yield | ||
| Jornal of Al-Muthanna for Agricultural Sciences | ||
| Article 1, Volume 2, Issue 1, 2014, Pages 1-14 | ||
| Abstract | ||
| ABSTRACT Field experiment was conducted at the Experimental Researches Station , College of Agriculture - AL-Muthanna University on 10 of September,2012 to study the effect of Foliar application of garlic extract at four rates (0, 2.5 , 5.0 and 7.5 ml L-1) and nitrogen fertilizer levels (0 , 50 , 100 and 150 Kg N ha-1) on vegetative properties and Essential Oil Yield of Mentha piperita L. Treatments of Foliar application of garlic extract were applied three times. Experiment were conducts using complete randomized block design with three replicates. The results are summarized as follows: garlic extract had significant effect on vegetative growth properties, the leve of 5.0 ml L-1 produced the best values of vegetative growth properties; plant height, dry matter yield, leaf content of total chlorophyll and essential oil yield(14.72 L ha). The concentration of 2.5 ml L-1 gave the best result in number of branches and number of leaves per plant. Level of nitrogenous fertilizer (150 Kg N ha-1) gave the highest means of vegetative growth characteristics ; plant height , branches number , leaves number, dry weight of vegetative growth, leaf content of total chlorophyll and essential oil yield (20.91L ha-1) . The results of the interaction effect between nitrogen fertilizer and Foliar application of garlic extract revealed that there was an increase in the vegetative growth characteristics, the interaction of rate of nitrogenous fertilizer (150 Kg N ha-1) with concentration of (5ml L-1) gave the highest means of all vegetative growth characteristics and produced the highest means of yield of essential oil. | ||
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