The effect of seed pretreatment with B group vitamins on some canola agronomical and physiological traits in seed deterioration conditions

Seed aging is a phenomenon that causes a lot of economic losses every year and it is necessary to use new and efficient methods to deal with it. B vitamins have a defensive and antioxidant role and they are effective in growth and development, so it is possible that they can heal the effects of seed aging. For this purpose, an experiment was conducted at Shahrood University of Technology in March ۲۰۱۷ to investigate the effect of seed pretreatment with B group vitamins on the growth and yield of canola in seed deterioration conditions. The experiment was factorial based on randomized complete block design with ۳ replications. Experimental treatments were ۳ levels of seed deterioration (۰, ۵۰ and ۱۰۰ hours) and ۷ levels of seed pretreatment with B vitamins (No pretreatment, Distilled water, thiamine, Riboflavin, Niacin, Pantothenic acid and Pyridoxine) with a concentration of ۱۰۰ mg/l. Seed deterioration was done at ۴۰⁰C and seed pretreatment for ۸ hours. The  results showed that all the measured traits were decrease affected by seed deterioration and only the amount of anthocyanins increased. In severe deterioration, seed pretreatment with distilled water and pyridoxine increased protein and oil yield respectively. Pantothenic acid pretreatment increased the amount of anthocyanins, total chlorophyll and grain yield at severe deterioration levels. This treatment increased grain yield by ۱۴۳ percent compared with plants grown from seeds without pretreatment. In general, among the treatment investigated in this study, the pretreatment of seeds with pantothenic acid and thiamine improved and increased many traits such as seed yield, oil and protein content. The advantage of these treatments was quite obvious in normal seeds but in aged seeds there was no significant difference with distilled water. Therefore, the results showed that in aged seeds, a similar result can be achieved by using distilled water with less cost.

Keywords:

deterioration , pantothenic acid , priming , yield components , اجزای عملکرد , اسید پانتوتنیک , تیامین , زوال بذر