Study On Drought Resistance Effects Of Electrostatic Field Treated On Oil Sunflower Seeds

The electrostatic field with the density of W6, W8 and W9 are used to treat the seed of 3 oil sunflower(Helianthus annuus L．)varieties. The experiment study on the reacts of seed germination and seedlings to the drought resistance, analyze the mechanism of electrostatic field influence on the drought-resistance. The results show, under water stress, electrostatic field can increase the seed germination percentage, germination index and vigor index, promote the activity of fattase, superoxide dismutate(SOD), catalase(CAT) and peroxidase(POD) during the stage of seed germination and seedlings, delay the accumulation of malon-dialdehyde(MDA), enhance the ability of water maintainability of leaves, decrease the activities of phosphatase(ACP). To some extent, it can retard the peroxidation of unsaturated fatty acid on membrane that is caused by active oxygen. Electrostatic treatment can protect the function and structure of membrane and promote the metabolism of seed and seedlings and enhance the drought-resistance of oil sunflower. Because of the characters of the bioelectric effects, different densities of electrostatic field have different effects on the 3 oil sunflower varieties. In general, W6 and W8 have better effects than W9.