Appraisal of foliar spray of iron and salicylic acid under artificial magnetism on morpho-physiological attributes of pea (Pisum sativum L.) plants

The appraisal of foliar treatment of iron (Fe) and salicylic acid (SA) on plant under artificial magnetism is very crucial in understanding its impact on growth and development of plants. The present study was designed to document the potential role of Fe and SA on pea (Pisum sativum L.) Matore variety exposed to different magnetism treatments (geomagnetism and artificial magnetism). Thus a pot experiment was conducted using Completely Randomized Design under factorial with three replicates. Various artificial magnetic treatment were applied in pots prior to sowing. Further, 15 days germinated pea seedlings were foliarly supplemented with 250 ppm Fe and 250 mu M SA, moreover after 20 days of foliar fertilization plants were harvested to analyze and record various morphophysiological attributes. Data elucidate significant variations in pea plants among different treatments. Artificial magnetism treatments in combination with foliar application of Fe and SA significantly improved various growth attributes (root and shoot length, fresh and dry weights of root and shoot, leaf area), photosynthetic pigments (Chl a, b and carotenoids) and the contents of soluble sugars. However, oxidative stress (H2O2 and MDA) enhanced under different magnetism treatment but foliar application of Fe and SA hampered the production of reactive oxygen species thereby limiting the concentration of H(2)O(2 )and MDA in plant tissues. Furthermore the accumulation of nutrients (iron, potassium and nitrate) profoundly increased under artificial magnetism treatment specifically under Fe and SA foliar treatment excluding nitrate where Fe foliar treatment tend to limit nitrate in plant. Consequently, the present research interestingly highlights progressive role of Fe and SA foliar treatment on pea plants under artificial magnetism. Thus, supplementation may be suggested for better growth and development of plants combined with magnetic treatments.

Automated summary

This study investigated the potential role of foliar treatment with iron and salicylic acid on the growth and development of pea plants under artificial magnetism. The results showed that the combination of artificial magnetism treatment with foliar application of iron and salicylic acid significantly improved various growth attributes, photosynthetic pigment content, and soluble sugar content in the plants. Additionally, the artificial magnetism treatment enhanced oxidative stress, but the foliar application of iron and salicylic acid inhibited the production of reactive oxygen species. Furthermore, under the artificial magnetism treatment, the foliar application of iron and salicylic acid increased the accumulation of nutrients.