Abstract
BackgroundAntioxidants or vitamins are organic compounds that are needed in tiny quantities and have stimulatory role on growth and productivity of different plants. Two field experiments were conducted in two summer seasons to investigate the role of two irrigation systems (spraying and dripping) and α-tocopherol foliar treatment with different concentrations (0, 100 and 200 mg/L) on some growth indices and physiological aspects, yield and its components of sweet corn plants.ResultsThe results show that dripping irrigation system was more effective than Sprinkler system on increasing the studied growth indices and biochemical attributes as well as yield quantity and quality. The results also show the enhancing effect of different α-tocopherol treatments on growth indices, and yield quantity and quality of the sweet corn varieties via enhancing photosynthetic pigments, indole acetic acid, phenolics, carbohydrates constituents, free amino acids and proline contents. Moreover, the interaction between the two irrigation systems and different concentrations α-tocopherol showed that, dripping irrigation with 200 mg/L α-tocopherol was the most effective treatment on increasing growth, yield and yield components of sweet corn plants.ConclusionIt could be concluded that dripping irrigation system was more effective than Sprinkler system on increasing the studied growth indices and physiological aspects, yield and its constituents. Moreover, treatment of maize plant with α-tocopherol could improve the studied growth indices, physiological aspects and consequently yield.
Highlights
Antioxidants or vitamins are organic compounds that are needed in tiny quantities and have stimulatory role on growth and productivity of different plants
Investigate the interactive effects of irrigation methods and TOC treatments on growth, some biochemical aspects and yield of sweet corn plants grown under sandy soil
Data clearly show that drip irrigation was superior to Sprinkler irrigation on different growth indices (plant height cm, leaves number and area Leaves area (LA) (cm2) per plant, fresh weight of leaves, stem and total plant (g) as well as total dry weight of plant (g)) of sweet corn plants grown under sandy soil
Summary
Antioxidants or vitamins are organic compounds that are needed in tiny quantities and have stimulatory role on growth and productivity of different plants. (Amal et al 2016) stated that maize production was increased in sandy soils characterized by poor. Irrigation is a critical limitation factor in newly reclaimed areas as sandy soil in the New Valley, due to the scarcity of water resources, which causes serious crop damages (Hanson and May 2004). The presence of appropriate moisture at the crucial plant growth stages is important to improve biochemical process of plant and enhance the performance of mineral nutrients added to crops, any extent of water deficit can cause reduced effects on growth and productivity of plant. Improving irrigation efficiency is prerequisite in future, especially in sandy soil which suffer from water scarcity resulted from low precipitation, high evaporation rate and temperature fluctuation between day and night. Tawfik et al (2018) noticed that water use efficiency significantly affected by irrigation requirements for all the studied bean cultivars
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