The effect of priming on seedling growth and germination characteristics of two genotypes of quinoa (Chenopodium quinoa willd)

In order to evaluate the effect of seed priming of Quinoa (Chenopodium quinoa Willd) on Seedling growth and germination Indexes of two varieties of Quinoa (Titicaca-Giza 1), studies in the form of a factorial experiment in a randomized complete block design (RCBD) with two factors four repetitions were conducted of Seed Technology Laboratory Shahed University in 2020. The experiment was the first factor included control ((no priming), Hydropriming, Potassium nitrate (0.02% w / v), Salicylic acid (0.6 mM), Calcium chloride (at 20 and 40 mM) and two genotypes of quinoa (TiticacaGiza 1). The best priming level for 40 mM calcium chloride was in both genotypes. Results of experiment showed that effect of priming on seed percentage at the level of one percent was significant but their interaction priming, genotyping on seed percentage not significant. Also, effect of priming, genotyping and their interaction on normal seedling percentage, seedling length, allometric coefficient and seed vigor length index, at the level of one percent was significant. Results showed that the highest seed percentage obtained in for level 20 (100 %) and 40 (100 %) mM calcium chloride priming in both genotypes (Titicaca-Giza 1). Generally, priming of 40 mM calcium chloride to highest germination indexes and of Titicaca and Giza1 genotype was recommended.