| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
Sicyos angulatus is a widespread distribution and alien weed which grows among forage crops fields, open habitat of liver side and natural vegetation in Japan. This weed is appointed in a specific invasive weed in Japan, but general control method is not effective because of a long term emergence traits. This study was conducted to examine the emergence control of S. angulatus to use the ground cover agricultural material which is made of 4000μm mesh fabric sheets. Seedling emergence and growth of S. angulatus was drastically decreased in covering treatment. This ground cover mesh sheets material has low cost application to control the large size seedling of S. angulatus and this covering method promotes the consumption of the seedbank. To estimate a ratio of decline of seedbank, GLM model of poisson regression was made follow equation. N = exp (3.52436-0.47625*x), where N is number of field emergence of S. angulatus and x is controlling years of application.
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