60 邵阳学院学报(自然科学版) 第9卷24 外源植酸酶对水稻种子内源植（60 Journal of Shaoyang University (NATURAL SCIENCE EDITION) Ninth Volume 24 exogenous phytase for endogenous planting of rice seeds）.docVIP

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60 邵阳学院学报(自然科学版) 第9卷24 外源植酸酶对水稻种子内源植（60 Journal of Shaoyang University (NATURAL SCIENCE EDITION) Ninth Volume 24 exogenous phytase for endogenous planting of rice seeds）.doc

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60 邵阳学院学报(自然科学版) 第9卷24 外源植酸酶对水稻种子内源植（60 Journal of Shaoyang University (NATURAL SCIENCE EDITION) Ninth Volume 24 exogenous phytase for endogenous planting of rice seeds）

60 邵阳学院学报(自然科学版) 第9卷24 外源植酸酶对水稻种子内源植（60 Journal of Shaoyang University (NATURAL SCIENCE EDITION) Ninth Volume 24 exogenous phytase for endogenous planting of rice seeds） 60 Journal of Shaoyang University (NATURAL SCIENCE EDITION) Vol ninth 2.4 exogenous phytase on rice bud seed endogenous phytase activity time, enzyme activity decreased. This may be because in kind Effect of changes of germination for the late storage nutrient depletion, decrease the synthesis of Phytase There is no table phytase in plant seeds induced under dry condition. But by adding exogenous phytase phytase in rice seeds This activity, when the seeds water began to sprout period, phytase is activated activity has been on the rise, and with the increase of the amount of And the hydrolysis of phytic acid, phosphorus release and other chelating substances for plant and phytase activity increased significantly, which may be exogenous phytase Use of phytase activity generally increased with the increase of germination time and enhanced [8]. absorption into the seed, may also provide exogenous phytase The test results show that the concentration of exogenous phytase on endogenous phytase synthesis of raw materials and nutrients, so as to improve the A. 2000 U kg-1, Endogenous phytase activity reached the highest value in the germination activity of Phytase But as time went on, The phytase activity, The first day, treatment group is 12.4% higher than the control group, second days there will be a downward trend, and this may use and the amount of Phytase No. 0.8%, 3 days 11.2%, 4 days 46.4%. group water rice seed germination stage ends. The strongest 72h after rice germination of phytase activity in the sample, and then with the hair A. Table 4 Changes of /U kg-1 phytase phytase activity of rice seed treatment A. Tab.4 Extraneous source phytase processing paddy rice seed phytic acid enzyme activity change/U kg-1 3 discuss the surge, the soluble sugar content during germination but with active The new