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All Journal Jurnal Penelitian Karet JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Tri Rapani Febbiyanti, Tri Rapani
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Agriculture, Biological Sciences & Forestry Education

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PENAPISAN JAMUR DAN BAKTERI ANTAGONIS TERHADAP JAMUR AKAR PUTIH (Rigidoporus microporus) DARI RIZOSFER TANAMAN LIDAH MERTUA (Sansevieria trifasciata Prain) Febbiyanti, Tri Rapani
Jurnal Penelitian Karet JPK : Volume 30, Nomor 1, Tahun 2012
Publisher : Pusat Penelitian Karet - PT. Riset Perkebunan Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/ppk.jpk.v30i1.115

Abstract

Penyakit akar putih yang disebabkan oleh jamur Rigidoporus microporus merupakan salah satu penyakit penting diperkebunan karet karena mengakibatkan kerugian yang cukup berarti. Mulai tahun 2003, Balai Penelitian Sembawa telah memperoleh suatu pengendalian alternatif yang murah, mudah didapat dan diterapkan di perkebunan rakyat yaitu pemanfaatan tumbuhan antagonis. Tumbuhan antagonis adalah suatu tumbuhan dari alam sekitar yang mempunyai kemampuan untuk menekan atau menghambat perkembangan penyakit akar putih. Tumbuhan antagonis memberikan pengaruh langsung dan tidak langsung terhadap perkembangan jamur akar putih dalam tanah. Faktor utama yang berpengaruh secara langsung adalah eksudat akar yang bersifat antibiotik, sedangkan faktor sekunder yang berpengaruh secara tidak langsung adalah sifat biokimia-fisik tanah. Dari 12 tumbuhan antagonis yang telah diuji di lapangan, lidah mertua merupakan tanaman yang paling efektif  dalam mengendalikan jamur akar putih karena tanaman tersebut lebih tahan terhadap kondisi lingkungan yang ektrim dan adanya zat anti mikroba pada tumbuhan ini.  Penelitian ini bermaksud mengeksplorasi jamur dan bakteri yang terdapat di rizosfer tanaman lidah mertua secara laboratorium. Hasil penelitian menunjukkan  bahwa terdapat 11 jenis bakteri dan 7 jenis jamur yang diperoleh dari rizosfer  lidah mertua.  Dari 11 isolat bakteri tersebut, 4 diantaranya tergolong bakteri gram positif dan 7 tergolong bakteri gram negatif, kemudian terdapat suatu interaksi antagonisme antara isolat bakteri L. M. 5 dan L. M. 6 dengan jamur Rigidoporus microporus. Kemudian, dari 7 isolat jamur yang ditemukan terdapat 4 isolat jamur yang merupakan jamur antagonis terhadap jamur Rigidoporus microporus. Diterima : 11 April 2012; Disetujui : 10 Juli 2012 How to Cite : Febbiyanti, T. R. (2016). Penapisan jamur dan bakteri antagonis terhadap jamur akar putih (Rigidoporus microporus) dari rizosfer tanaman lidah mertua (Sansevieria trifasciata Prain). Jurnal Penelitian Karet, 30(1), 1-11. Retrieved from http://ejournal.puslitkaret.co.id/index.php/jpk/article/view/115
ANALYSIS OF CAUSATIVE FACTORS FOR CANKER DISEASE EPIDEMIC ON RUBBER PLANTS IN SOUTH SUMATRA Febbiyanti, Tri Rapani; Wiyono, Suryo; Yahya, Sudirman; Widodo, Widodo
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 19, No 1 (2019): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (73.629 KB) | DOI: 10.23960/j.hptt.11982-91

Abstract

Analysis of Causative Factors for Canker Disease Epidemic on Rubber Plants in South Sumatra.  Lasiodiplodia theobromae is the cause of stem canker in the rubber plant (Hevea brasiliensis), this is a new disease and has never been reported in Indonesia. Currently, data on environmental factors and cultivation techniques related to the development of stem canker are not available so research needs to be done on this subject. The objective of the study was to analyze environmental factors and cultivation techniques related to stem canker on rubber trees in southern Sumatra. The study was conducted by collecting data on environmental factors and cultivation techniques and then analyzed the association with stem canker. Field observation was carried out at 21 locations in PT. Perkebunan Nusantara VII Business Unit Padang Plawi Bengkulu,  Tulung Buyut Lampung, Musilandas Palembang and Experimental Garden of Sembawa Research Center, Indonesian Rubber Research Institute at Palembang to measure the severity and incidence of this disease. Besides that, the data of cultivation technique and the condition of the garden were taken from the officer at those locations. Soil sample from each location was taken in a composite way, then its physical and chemical components were analyzed. The analysis was conducted to find out the correlation between cultivation and disease severity using chi-square test.  The relationship between chemical and physical factors of the soil with the disease severity was analyzed using a multivariate test of principal component analysis/PCA. Regression analysis was conducted to show the possible relation to the incidence and severity of this disease.  The location, clones, weed control and the number of plants per hectare showed a correlation with the disease severity. There was a positive correlation between incidence and severity of the disease. The highest disease severity occurred at the Sembawa location on clone BPM 24, with the number of plant population per ha was ? 555 trees and weed control using herbicide. Content of soil nitrogen, dust, clay and water as well as cation exchange capacity (CEC)were suggested to significantly contribute to the severity of stem canker.
Co-Authors Sudirman Yahya Suryo Wiyono Widodo Widodo