Humic and Oxalic Acid Stimulates Grain Yield and Induces Accumulation of Plastidial Carbohydrate Metabolism Enzymes in Wheat Grown under Sandy Soil Conditions

Abstract

Humic and oxalic acids have the effects of promoting plant growth. We test whether they are able to positively impact wheat yield under newly reclaimed sandy soil, where water deficiency negatively influences yield. Foliar application of humic acid and oxalic acid on two wheat cultivars, Gemiza-9 and Sakha-93, leads to overall better performance of the plants and increases the yield significantly, irrespective of the cultivar genetic background. However, Gemiza-9 surpassed Sakha-93 in grain yield parameters. The highest values of grain and protein yields/ha were obtained in both cultivars, when the plants were sprayed with a combination of 17 mg/L humic acid and (300 mg/L) oxalic acid. Humic and oxalic acid showed accumulative yield-promoting effect. To understand the mechanism by which humic and oxalic acids promoted grain yield, we performed SDS-PAGE followed by MS-MS-LC analyses. We identified a unique humic acid-induced 52 KDa band in Gemiza-9. The band contained three major proteins, Ribulose bisphosphate carboxylase large chain, ADP-glucose synthase and NADP-dependent glyceraldehyde-3-phosphate dehydrogenase (GAPN). Thus humic acid increased the activity of plastid enzymes involved in photosynthesis, sucrose biosynthesis and starched accumulation to improve the overall performance of the plant.

The Effect of Application Methods and Treating with Various Growth Promoter Substances on Productivity of Maize

“…ions uptake and transport, , transpiration, photosynthesis, growth and plant metabolism. These findings are in partial well-matched with those recorded by Rood et al (1990), Malencic et al (2004), Chauhan et al (2009), Singh et al (2010, Ghodrat et al (2012), Babakhaani et al (2013), El-Shabrawi et al (2015) and Mustafa and Awang Soh (2016). Plant height (cm), ear height (cm), ear leaf area (cm 2 ), number of ears/plant, ear length, (cm)…”

“…Moreover, adding has received much attention in relation to, induced disease systemic resistance and its antioxidant capability (Malencic et al, 2004). El-Shabrawi et al (2015) indicated that foliar application with oxalic acid indicated significant increments in growth of plant, maize yield and its components.…”

Evolution of varieties and development of production technology in Egypt wheat: A review

“…Recently, a great deal of attention has been directed toward increasing wheat productivity per unit land, especially in newly reclaimed soils, to minimize the gap between Egyptian production and consumption (Amal et al 2011). El-Shabrawi et al (2015 revealed that the wheat yield per unit area could be increased by breeding high yielding varieties, applying optimum cultural practices and employing agronomic practices that sustain soil fertility through their effect on the physical, chemical, and biological properties of the soil.…”

Quantification and correlation of Arbuscular mycorrhizae fungi spores and root colonization with the soil characteristics of Wheat (Triticum asativam L.) crop.

“…It has been known to be one of the important cereal crops providing 37% of total calories to humans and 40% of the protein in our diet [11]. It was also found that wheat yield per unit area can be increased if we use high yielding wheat varieties, improved agriculture practices, genetically improved or modified wheat germplasm and improved agronomic practices [12]. Therefore, the present is study is conducted to find out the correlation of AM fungi spores and root colonization with the soil characteristics of wheat (Triticum asativam L.).…”