The effect of sowing dates and LiQ-humus and their interactions on growth, yield and chemical compositions of Withania somnifera L. Dunal (Ashwagandha)

The experiment was conducted to study the effect of sowing dates and LiQ-Humus on growth, yield and chemical composition of Ashwagandha (Withania somnifera L.) sown at Medicinal and Aromatic Plants fields of the College of Agriculture , Basra University, Iraq, during the growing season of 2013/2014 and 2014/2015. The experiment was laid out in Randomized Complete Block Design in a factorial experiment having three replications. The experiment involved two factors: sowing dates at three levels of1or20 September and 10 October and LiQ-Humus(0 and 0.75) ml.l-1The results showed that the all growth characters and chemical composition and nutrient contain of Ashwagandha plants as affected by different sowing dates. LiQ-Humus had no significant effects on all growth characters during both growing seasons except for dry weigh of leaves and roots. and increase of nutritional components. The interactions between sowing dates and LiQ-Humus gave a significant increase in most studied parameters during both seasons.

Author(s): Essam H. A. Al-Doghachi, Abdul-Razzak O. Hassan and Nada N. Faris

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