Damiri, Nurhayati and Mazid, Abdul and Serliana, Yuni (2011) PENGARUH UMUR TANAMAN DAN DOSIS PUPUK KALIUM TERHADAP INFEKSI PENYAKIT BULAI. Majalah Ilmiah Sriwijaya, XIX (12). pp. 682-687. ISSN 0126-4680

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      Effect of maizes growth stages and potassium fertilizer dosages on downy mildew infection. The research was carried out at Phytophatoly laboratorium and green house at the Plant Pest and Diseases Department, Faculty of Agriculture, Sriwijaya University. The treatment were arranged in factrorial completely randomized design (FCRD)and three replication. The fist factor were maize ages, namely: two weeks , four weeks and six weeks. The second factor were the dosages of potassium fertilizerwhich were: 1 gram/ plant; 2 gram/plant and 3 gram/plant. The result shows that plant growth stages effect significantly incubation period, disease incidence and disease severity. The combination of potassium fertilizer dosages and maizes growth stages effect the disease severity. The incubation period were range between 7 to 11 days after inoculation. The youngest growth stages of maize so the highest disease incident and disease severity. The combination maize ages and dosages of potassium which made high severity on maize was combination two weeks and 1 gram potassium/plant, it was 36.45 percent.

      Item Type: Article
      Uncontrolled Keywords: Downy mildew, maize eges, potassium fertilizer dosages.
      Subjects: S Agriculture > S Agriculture (General)
      Divisions: Faculty of Agriculture > Department of Plant Pests and Diseases
      Depositing User: Dr. Nurhayati Damiri
      Date Deposited: 23 Jun 2012 18:51
      Last Modified: 10 Sep 2012 23:37

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