In order to study the difference between cauliflower varieties with ball well protected and unprotected in terms of pesticide residue and its causes, Jinpin 70, a new male sterile cauliflower variety with ball well pr...In order to study the difference between cauliflower varieties with ball well protected and unprotected in terms of pesticide residue and its causes, Jinpin 70, a new male sterile cauliflower variety with ball well protected, and Xuebao with ball unprotected were sprayed with high-toxic pesticide phorate and efficient bio-pesticide emamectin benzoate at a regular dose to investigate the impact of different cauliflower varieties on the pesticide residue. The results showed that from the 3rd to the 5th day after spraying, phorate and emamectin benzoate residues in Jinpin 70 with ball well protected reduced by 76.47%-87.65% and 67.86%-80.82% re- spectively compared with Xubao, and decreased by 9.23%-81.82% and 57.14%- 79.84% respectively compared with Jinpin 70 with ball unprotected. The results above demonstrates that inner leaves of cauliflower with ball well protected can prevent the ball from being polluted by phorate and emamectin benzoate, thereby improving its edible safety.展开更多
基金Supported by the Technology System Project of National Vegetable Industry(CARS-25-A-13)Science and Technology Planning Project of Tianjin City(12ZCDZNC03600)Major Science and Technology Engineering Project of Tianjin City(12ZCDZNC03500)~~
文摘In order to study the difference between cauliflower varieties with ball well protected and unprotected in terms of pesticide residue and its causes, Jinpin 70, a new male sterile cauliflower variety with ball well protected, and Xuebao with ball unprotected were sprayed with high-toxic pesticide phorate and efficient bio-pesticide emamectin benzoate at a regular dose to investigate the impact of different cauliflower varieties on the pesticide residue. The results showed that from the 3rd to the 5th day after spraying, phorate and emamectin benzoate residues in Jinpin 70 with ball well protected reduced by 76.47%-87.65% and 67.86%-80.82% re- spectively compared with Xubao, and decreased by 9.23%-81.82% and 57.14%- 79.84% respectively compared with Jinpin 70 with ball unprotected. The results above demonstrates that inner leaves of cauliflower with ball well protected can prevent the ball from being polluted by phorate and emamectin benzoate, thereby improving its edible safety.
文摘为明确甲氨基阿维菌素苯甲酸盐乳油和微乳剂的松脂溶解性、吸收及其防治效果,开展了松脂溶解性测定注射马尾松吸收效果及其对松材线虫病(Bursaphelenchus xylophilus)的防治效果试验。试验结果表明,1、6、12 h时5.7%甲氨基阿维菌素苯甲酸盐EC在松脂中溶解量分别达4698.0、5336.0、6232.0μg/g,显著高于2.3%甲氨基阿维菌素苯甲酸盐ME在松脂中的溶解量(分别为1903.0、3466.8、3831.6μg/g)。注药后12 h,5.7%甲氨基阿维菌素苯甲酸盐EC的吸收比例分别为90.5%、87.4%,均显著高于2.3%甲氨基阿维菌素苯甲酸盐ME的吸收比例(分别为72.1%、70.4%)。马尾松注射5.7%甲氨基阿维菌素苯甲酸盐EC 20 m L/株、2.3%甲氨基阿维菌素苯甲酸盐ME 50 m L/株对松材线虫病的防治效果分别为100%和90.1%。说明5.7%甲氨基阿维菌素苯甲酸盐EC的松脂溶解性、马尾松吸收及防治效果均优于2.3%甲氨基阿维菌素苯甲酸盐ME。
