جستجوی مقالات مرتبط با کلیدواژه « غلظت فسفر بذر » در نشریات گروه « زراعت »

In order to investigate the effects of priming with 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 (vermicimpost (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 **).