Phytopthora spp is a pathogen that causes disease in cocoa plants that always attacks cocoa plants and affects the growth of cocoa plants and reduces the quantity and quality of cocoa beans is fruit rot, leaf blight, and stem cancer. This study was conducted to calculate the intensity of cocoa fruit damage due to cocoa fruit rot disease in Waesala Village, Huamual Belakang Sub-district, which is one of the sub-districts in West Seram Regency that cultivates many cocoa plants, namely Waesala, Buano, and Allang Asaude. The method used was survey method with systematic random sampling of 5 sample farmers from 3 villages in Huamual Belakang Subdistrict. The results showed that the average intensity of damage (IK) due to fruit rot disease in Huamual Belakang Subdistrict was 24% (mild category), with an average IK due to cocoa fruit rot in Waesala village of 21% (mild category), Buano 26% (moderate category), and Allang Asaude 29% (moderate category).
Phytopthora spp is a pathogen that causes disease in cocoa plants that always attacks cocoa plants and affects the growth of cocoa plants and reduces the quantity and quality of cocoa beans is fruit rot, leaf blight, and stem cancer. This study was conducted to calculate the intensity of cocoa fruit damage due to cocoa fruit rot disease in Waesala Village, Huamual Belakang Sub-district, which is one of the sub-districts in West Seram Regency that cultivates many cocoa plants, namely Waesala, Buano, and Allang Asaude. The method used was survey method with systematic random sampling of 5 sample farmers from 3 villages in Huamual Belakang Subdistrict. The results showed that the average intensity of damage (IK) due to fruit rot disease in Huamual Belakang Subdistrict was 24% (mild category), with an average IK due to cocoa fruit rot in Waesala village of 21% (mild category), Buano 26% (moderate category), and Allang Asaude 29% (moderate category).
Soil microbes have suggested to be used as agricultural input. Nitrogen fixing rhizobacteria Azotobacter is responsible to maintain nitrogen nutrition and plant growth whereas Trichoderma enable to reduce soil born plant diseases through antagonistic activity. The objective of this pot experiment was to determine the dosage and application time of carrier- based Azotobacter-Trichoderma inoculant which increase nitrogen availability in soil, as well as growth and yield of chili (Capsicum annuum L.). Chili transplants were grown in low fertility soil mixed with cow manure. Experiment was set up in split plot design which tested four inoculant dosage and three application time. The result showed that effect of biological agent on plant height at three and six weeks after transplanting was not significant. Inoculation of 7,5 g/pot carrier-based Azoto-Tricho at planting time followed by soil dressing with Azotobacter liquid inoculant at 10 day after planting significantly increased NO3 - in soil. Carrier-based Azoto-Tricho inoculant irrespective of dosage and application time increased plant yield. The highest yield, 290 g plant-1, was showed by plant treated by 7,5 g po1t Azoto-Tricho at planting time followed by Azotobacter liquid inoculation. This pot experiment showed that carrier-based Azotobacter-Trichoderma inoculant has potential to be used as biological agent in chili production.
Hawar benang atau ekor kuda (thread blight) yang disebabkan jamur Marasmius sp. merupakan salah satu penyakit pada tanaman pala yang menyebabkan kering dan gugurnya daun-daun pala pada ranting dan pada gejala lanjut dapat menyebabkan kematian pada tanaman. Daun-daun yang kering dan gugur tidak langsung jatuh ke tanah tetapi terikat oleh risomorf jamur. Intensitas kerusakan (IK) hawar benang pada tanaman pala di kecamatan Leihitu Kabupaten Maluku Tengah telah dilakukan pada 5 desa sampel di kecamatan Leihitu, yaitu: Hila, Kaitetu, Seith, dan Asilulu), dengan metode survey langsung. Hasil penelitian ditemukan rata-rata persentase IK hawar benang yang disebabkan jamur Marasmius sp. pada keempat desa tersebut 24.80% tergolong kategori ringan, dimana IK tertinggi ditemukan pada desa Asilulu sebesar 37.76% tergolong kategori serangan sedang. Sedangkan IK pada ketiga desa lainnya tergolong katagori ringgan dengan rata-rata IK pada masing-masing desa adalah sebagai berikut: Hilla 22.88%, Kaitetu 19.78%, dan Seith 18.79%. Keberadaan jamur Marasmius sp. harus mendapat perhatian dalam budidaya tanaman pala di kecamatan Leihitu sehingga tidak akang menimblkan kerusakan yang lebih besar.
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