PENGARUH UMUR TANAMAN DAN DOSIS PUPUK KALIUM TERHADAP INFEKSI PENYAKIT BULAI
| Main Authors: | Damiri, Nurhayati, Mazid, Abdul, Serliana, Yuni |
|---|---|
| Format: | Article PeerReviewed application/pdf |
| Terbitan: |
Universitas Sriwijaya
, 2011
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| Subjects: | |
| Online Access: |
http://eprints.unsri.ac.id/1044/1/Cover_M.Sriwijaya.pdf http://eprints.unsri.ac.id/1044/2/PENGARUH_UMUR_TANAMAN_DAN_DOSIS_PUPUK_KALIUM_TERHA.pdf http://eprints.unsri.ac.id/1044/ |
Daftar Isi:
- 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.