| Iva Xanthifolia was a vicious alien invasion of weeds, fast settlement, rapid growth and produce large seeds, rapid spread of features, and often can quickly form a single community in the formation of inhibitory effect on the surrounding plants. Weed Iva Xanthifolia just invade our country soon, the germination of the role of domestic not reported, and a fast spreading trend. Therefore, the germination of Iva Xanthifolia role of specific Iva Xanthifolia occurrence plays an important role in controlling the spread of Iva Xanthifolia important guiding significance.Biological effects in the electrostatic field, the domestic and foreign scholars have done a lot of research work, and achieved fruitful research results. In recent years, an electrostatic technology in agriculture and breeding of certain aspects of the study, reached a different extent, increase production, improve the quality of agricultural products results. However, weed seeds, as electric field has not yet been reported, so explore at different times and different field treated weed seeds, their germination with both theoretical and practical significance. In this study, the electric field (100Kv / m, 200Kv / m, 290Kv / m) electric field, set up three different time gradient (30min, 60min, 90min), Observing and measuring the germination rate, germination energy, germination index, vigor index, and biochemical detection means detecting Iva Xanthifolia seed germination ofα-amylase (α-amylase),β-amylase (β-amylase) and catalase (POD) activity and soluble protein content (soluble protein content) and hormones (ABA and GA) were measured.The major findings of this study are as follows:1. Iva Xanthifolia high voltage electrostatic field on seed germination was stimulated.In the conditions of 290kV, 60min electric field treatments, the germination potential, germination rate, germination index and vigor index than the control group increased by 28.8%, 20%, 105% and 136%. All field treatments ofα-amylase activity, soluble protein content than the control group had increased significantly, which voltage is 290kV, 60min experimental group and control groupα-amylase activity increased by 18.4%, an increase of soluble protein content 16.7%; butβ-amylase and catalase effect is increased with the voltage suppression was first, but then the trend of other groups are different.2. After the electric field of different voltage and time of treatment can indeed promote Iva Xanthifolia seeds germination, but not the longer, higher the voltage, on Iva Xanthifolia seed germination for the more obvious effects. Electrostatic field on Iva Xanthifolia seeds germination obvious promotion effect, and this significantly influenced the "electric window effect."3. Iva Xanthifolia seeds electric field fake hormone ABA and GA will be affected significantly, with the field strength and treatment time increase, and promote the synthesis of GA and ABA slowed the increase of the content on false Iva Xanthifolia seeds significantly boost.4. Electrostatic field on leave Iva Xanthifolia germination was stimulated macro level, to the germination rate, germination energy, germination index, vigor index were significantly improved; the micro level, so thatα-amylase,β-amylase and catalase activity and soluble protein contents were measured in a significant increase, raising the degree varies with the voltage. But the electric field on Iva Xanthifolia seeds have germination leave there to promote the role of bud growth, can enhance the activity of certain enzymes, bring some of the enzyme activity decreased. Certain voltage, the electric field can greatly improve the seed germination rate, germination energy and other macro indicators of theα-amylase,β-amylase and catalase activity and soluble protein content, also have some role in promoting. In addition, the same field at different times of the false Iva Xanthifolia Seed Germination, there are big differences.
|
PDF Full Text Request