TY - JOUR T1 - Effects of Fertilizers and Priming with KH2PO4 Solution on Emergence and Heterotrophic Growth of Black Cumin (Nigella sativa) Seedling TT - اثر کود و پرایمینگ با محلول فسفات دی هیدروژن پتاسیم بر رشد هتروتروفیک گیاه چه های سیاهدانه (Nigella sativa) JF - yu-isr JO - yu-isr VL - 2 IS - 1 UR - http://yujs.yu.ac.ir/jisr/article-1-40-en.html Y1 - 2015 SP - 11 EP - 24 KW - Emergence percentage KW - Seed phosphorus KW - Seed reserve utilization efficiency N2 - In order to investigate the effects of priming with a KH2Po4 solution on emergence and heterotrophic growth of black cumin (Nigella sativa L.) seedling, a series of experiments were conducted at the Faculty of Agriculture, Ferdowsi University of Mashhad, Iran, in 2013 and 2014. A field experiment was conducted as factorial layout based on a randomized complete block design with four replications. The fertilizer resources (vermicompost (V)+Tiobacilus (T), micronized Sulfur (S)+T, V+S+T and control) and three levels of phosphorus (0, 30 and 60 kg.ha-1) were the first and second experimental factors, respectively. In the second experiment, selected treatments (in which showed emergence below 60% in the previous experiment) and seed priming (no priming, hydro priming and three levels of phosphorus (P)-priming as 100, 300 and 500 mM KH2Po4) were the first and second experimental treatments, respectively. Based on the results, the resources of soil amendment (V+T and V+S+T) significantly increased the emergence percentage of black seed (by 50 and 54%, respectively). In addition, seed reserve depletion percentage, seed reserve utilization efficiency and emergence percentage significantly increased by 300 mM KH2PO4 (by 9, 143 and 29%, respectively). There was a significant positive relationship between the weight of mobilized seed P and the emergence percentage of black seeds (R2= 0.90 **). M3 10.29252/yujs.2.1.11 ER -