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Journal : Jurnal Agroteknos

KONTRIBUSI Pratylenchus brachyurus DALAM MENGINDUKSI GEJALA LAYU PADA TANAMAN NANAS (Ananas comosus (L.) Merr) Lisnawita, Lisnawita; Supramana, Supramana; Suastika, Gede
Jurnal Agroteknos Vol 1, No 2 (2011)
Publisher : Jurnal Agroteknos

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ABSTRACTPineapple is one of the leading export commodities in Indonesia and grown in North Sumatra, South Sumatra, Riau, Bangka, Lampung, West Java and East Java. The main constraint of the cultivation of pineapple is wilt disease caused by plant parasitic nematodes. Research during the years 2008 has been done to study contribution of Pratylenchus brachyurus infection on wilting symptoms induction of pineapple on the pineapple plantation in the Village Bunihayu, Jalancagak district, Subang. The result showed Pratylenchus brachyurus dan P. coffeae (lesion nematode) were the dominant nematodes observed on the location which the community prevalence reached 82.50% and 17.50%. Mapping relationships of nematode populations at various levels of plant growth found that the two nematodes were contributing to the incidence and severity levels of wilt disease, especially in the generative phase of pineapple in the field. Keywords: Pratylenchus brachyurus, pineapple wilt, pineapple (Ananas comosus (l.) Merr)
STUDI PENGARUH SUHU DAN INTENSITAS RADIASI MATAHARI TERHADAP PERKEMBANGAN PENYAKIT PATIK PADA TEMBAKAU Tantawi, Ahmad Rafiqi; Hadisutrisno, Bambang; Semangun, Haryono; Hartana, I; Lisnawita, Lisnawita
Jurnal Agroteknos Vol 3, No 3 (2013)
Publisher : Jurnal Agroteknos

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The Study on Contribution of Temperature and Solar Radiation Intensity to Frogeye Disease Development on Tobacco. Tobacco is an important plant in Indonesia, due to its contribution to Indonesian economic and employment opportunity. One of the limiting factors in tobacco production is frogeye leaf spot, a fungal disease caused by  Cercospora nicotianae Ell. et Ev. Epidemic of this disease was supposed to have a close relationship with weather aspects, such as wind velocity, temperature, solar radiation intensity and relative humidity.. The experiment carried out at Mycology Laboratory, Study Program of Plant Pest and Disease, Faculty of Agriculture, UGM and two tobacco plantations in Jember a nd Klaten to study contribution of temperature and solar radiation intensity to frogeye disease development on tobacco. The results showed that frogeye disease development was support by weather elements. i.e. temperature, but solar radiation intensity is not important factor to disease development. Key words: tobacco, temperature, solar radiation intensity, frogeye disease development