|
Selenium is to maintain the health of the body essential trace element for humans and animals . A very narrow range between the amount of selenium beneficial and toxic dose selenium security amount. Soil selenium inorganic selenium into organic selenium absorbed by the garlic and improve the biological activity of selenium , easily absorbed by the body , so of Garlic selenium enrichment capacity and selenium garlic different indicators of selenium-enriched garlic The development has an important significance . In this experiment, the garlic as test materials , sodium selenite as selenium source , by applying different amounts of selenium in the soil , to study the impact of growth and development, the selenium content , yield and quality of garlic . The results show that : the amount of applied selenium can promote the garlic plant growth and development . Through a comprehensive analysis of garlic agronomic traits and physiological traits of each index , the amount of selenium can promote the growth of garlic , increase in plant height , raise false stem , the horizontal stem diameter and chlorophyll content , increase in leaf area and dry matter accumulation , significantly increased leaf antioxidant enzyme activity , increase the the plant antioxidant capacity , anti-aging ; excess selenium role . Shi Se content of selenium in garlic bulb is much higher than selenium treatment is not applied , and with the increase in the amount of selenium in bulb selenium content increased significantly , the highest amount of selenium enriched up to control more than one hundred times . Bulb selenium mainly in the form of organic selenium , the inorganic selenium only a small part . Amount of applied selenium yield significant results , influence production traits constitute . Appropriate facilities selenium highest yield of 11.18% , plant height , diameter , total number of valve , single bulb weight , biological yield , economic yield small flap minimum rate cut of 2.92% ; caused by an excess of selenium , its small The maximum rate of flap , other yield-related traits minimum . The appropriate amount of selenium can significantly reduce the content of reducing sugar to improve vitamin C, protein, amino acid content , significantly improve the quality of the garlic . Comprehensive analysis of selenium on growth and development, yield and quality of garlic and livestock consumption , security, the enriched effect of soil applied to the amount of selenium to 0.45 g / m 2 .
|