Identification Of Drought Resistance Of Transgenic Drought Resistant Maize At Flowering Stage And Security Evaluation Of The Physic-chemical Properties Of The Farmland Soil

During the betA gene pure collection strains of36Ba3C42-1-3as the test material, under drought shed within two species planting mode, field cultivation and potted, its receptor DH4866at the same conditions as control, drought resistance of transgenic drought resistant maize at flowering stage was identified. At the same time, by collection two species corn four a growth times of root inter-soil, the physico-chemical nature of the soil and its structure of the soil and the soil enzyme activity for has determination. Results are as follows:1. At the water stress on the lower level, and receptor plant compared to, transgenic plant in leaves relative moisture, and membrane damage degree, and MDA accumulated volume, and breast ammonia acid content, and SOD activity this several aspects are performance out better of drought sexual, pollen vitality and production constitute, and grain heavy of statistics results also performance out transgenic plant has better of drought sexual, this description and receptor plant compared to, in drought sexual Shang the transgenic material indeed has more better of drought sexual. Physiological indexes only on change of chlorophyll content in no significant differences between the two and shows chlorophyll cannot effectively reflect the strengths of drought resistance of plants;2. After collection and determination soil of the indicators for statistics analysis, found in corn growth of different times soil of correlation indicators will has minor of changes and rendering out must of regularity, specific reflect for as corn growth, soil pH will has must range of reduced, dry sieve law by are of soil average weight diameter will has must degree of reduced, soil enzyme activity will has must degree of rise. But such indicators of genetically modified corn compare with the receptor, you found that there is no significant difference. These index changes are caused by the growth of corn, has nothing to do with plants genetically modified, the genetically modified maize in the soil environment is safe.