The Impact of Glucose-induced Priming on Nutrients Accumulation and Certain Primary Attributes of Brassica napus L. Under the Saline Regimes

Abstract

In the present study, the response of primary attributes (seedling growth, percent emergence, seedling fresh and dry biomass, and seedling moisture contents) and nutrient contents (Calcium, Magneisum, Iron, Manganese, Zinc, Copper) of Brassica napus L. was evaluated as a function of glucose-induced priming and salinity. The priming comprised 30 minutes, 60 minutes and 90 minutes of seeds soaking in glucose solution (0.50 M) and salinity stress was simulated by the solutions of 0, 15, 18, 21, and 24 milli Molar (mM) NaCl. The results revealed that doses of salinity induced significant changes in the fresh weight of Brassica napus L. The response of selected nutrients (except Magnesium) as a function of salinity was also highly significant (P≤0.05 %). The salinity doses reduced plants' mineral contents (except Mn) compared to control. The priming of seeds for 90 minutes significantly (P≤0.05 %) enhanced certain early growth traits (plumule growth, radical growth, fresh weight and dry weight) of Brassica napus. On the other hand, for improving germination (%) and moisture contents (%) of Brassica napus, soaking durations of 30 minutes and 60 minutes are more suitable. The pre-soaking of seeds for 60 minutes increased the Calcium, Magnesium and Manganese contents (mg/litre) of Brassica napus. The Iron and Zinc contents (mg/litre) showed hype in seedlings raised from seeds primed for 30 minutes. The priming of seeds for 90 minutes was found to be stimulatory for Copper (mg/litre) only. The influence of factors interaction (treatments × priming durations) on the initial growth attributes and the studied minerals of Brassica napus L. was highly significant (P≤0.05 %). From the gathered evidence, the present study concludes glucose as a potent priming agent that can boost oil-yielding plants' performance under saline conditions.