摘要
在田间条件下研究了吡虫啉(高巧,60%悬浮剂)包衣处理对油菜蚜虫发生的影响。播种前对油菜种子进行不同浓度(药种比分别为1∶5、1∶25、1∶125)的药剂包衣处理。结果表明,油菜苗期的营养生长(株高、叶面积、叶片数、叶绿素含量、植株鲜干质量)及花期的生殖生长(花朵大小、花器官质量、花器官游离脯氨酸、可溶性蛋白、可溶性糖和淀粉含量)均不受吡虫啉种衣剂处理的显著影响;但角果的坐果率和籽粒形成受到了显著的影响,如单株阴角数随处理浓度的升高而增加,角果大小、质量及角果内籽粒数和质量均受到了显著的影响。以上结果说明,吡虫啉种子包衣处理对油菜的苗期和花期作用不明显,但可显著影响油菜最终结实。
Effects of imidacloprid （ Gaucho） coating on aphids in fields of oilseed rape were studied. Seeds were treated by Gaucho in different ratios of 1： 5, 1 ： 25 and 1 ： 125 （weight of chemicals versus seeds）. The results showed that vegetative growth （plant height, leaf area, number of leaves, chlorophyll contents and plant weight） at seedling-stage and reproductive growth at flowering-stage （flower size, flower weight, proline/soluble protein/ solu-ble sugar and starch contents in the flowers） were not significantly affected by treatments; but the fruiting was signifi-cantly inhibited, i. e. empty pods were increased as the treated concentration elevated, size/weight/ seeds of pods together with the seeds weight were significantly decreased. Results above suggested that imidacloprid as a seed-coat-ing agent could significantly affect the fruiting, but showed no effect on the seedling and flowering of oilseed rape.
出处
《浙江农业学报》
CSCD
北大核心
2017年第4期528-533,共6页
Acta Agriculturae Zhejiangensis
基金
农业部公益性行业专项(201303030)
安徽省自然科学基金资助项目(1408085MKL65)
国家自然科学基金资助项目(31501638)
关键词
种衣剂
吡虫啉
油菜
田间种群
seed-coating agent
imidacloprid
oilseed rape
field population
