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INDONESIA
Jurnal Penelitian Pertanian Tanaman Pangan
Published by Pusat Penelitian dan Pengembangan Tanaman Pangan
ISSN : 25415166     EISSN : 25415174     DOI : 10.21082
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Penelitian Pertanian Tanaman Pangan merupakan publikasi yang memuat makalah ilmiah primer hasil penelitian tanaman pangan (padi dan palawija). Redaksi menerima makalah dari peneliti Puslitbang Tanaman Pangan, Balai Pengkajian Teknologi Pertanian (BPTP), maupun perguruan tinggi. Makalah yang dikirimkan hendaknya sudah mendapat persetujuan dari pimpinan instansi masing-masing. Ketentuan penulisan makalah untuk dapat dimuat di jurnal ini tertera dalam "Author Guidelines/Petunjuk bagi Penulis" di halaman terakhir Jurnal Penelitian Pertanian.
Arjuna Subject : -
Articles 2 Documents
 1 
Search results for , issue " Vol 32, No 2 (2013): Agustus 2013" : 2 Documents clear
Komposisi dan Sebaran Patotipe Xanthomonas oryzae pv. oryzae di Sentra Produksi Padi di Sumatera Selatan Sudir, Sudir; Yogi, Yoga A.; Syahri, Syahri
Jurnal Penelitian Pertanian Tanaman Pangan Vol 32, No 2 (2013): Agustus 2013
Publisher : Pusat Penelitian dan Pengembangan Tanaman Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (103.961 KB) | DOI: 10.21082/jpptp.v32n2.2013.p98-108

Abstract

A study was carried out to identify the composition and distribution of Xanthomonas oryzae pv. oryzae (Xoo) pathotypes in rice crops in South Sumatera, during the 2012 planting season. Three activities were conducted, namely collection of rice leaf samples from the field, isolation of Xoo from the leaf samples in the laboratory, and testing pathotypes of the Xoo in the screen house. Rice leaves showing typical bacterial leaf blight (BLB) symptom were collected from various farmers’ fields. The samples were detached and put into paper envelopes, and taken to the laboratory for isolation of Xoo, at the Laboratory of Pythopathology of Indonesian Center for Rice Research, Sukamandi. Pathotype testing was done in the ICRR screen house by inoculating the leaves of five differential rice varieties with inocula of the Xoo isolates collected. Resistances of the rice differential varieties were determined based on the BLB disease severity. Inoculated plant with disease severity <11% was considered resistant (R) and disease severity >11% was susceptible (S). From 122 samples of rice leaf infected with BLB collected from the rice production centers in South Sumatera, one hundred and twelve Xoo isolates were obtained from the isolation. The Xoo pathotype identification showed that pathotype III was the most dominant in South Sumatera during the 2012 planting season (67 isolates or 60.0%) followed by pathotype IV (28 isolates or 25%), and pathotype VIII (17 isolates or 15.0%).
Stabilitas dan Potensi Hasil Varietas Unggul Baru Padi Hibrida Satoto, Satoto; Mejaya, Made Jana; Widyastuti, Y.; Rumanti, I. A.
Jurnal Penelitian Pertanian Tanaman Pangan Vol 32, No 2 (2013): Agustus 2013
Publisher : Pusat Penelitian dan Pengembangan Tanaman Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (85.648 KB) | DOI: 10.21082/jpptp.v32n2.2013.p67-73

Abstract

Nineteen field experiments were conducted in the provinces of West Java, Central Java, East Java, and Bali, during the 2008 dry season and the 2008/2009 wet season, to determine yield potential, yield stability, resistance to pests and diseases, and to evaluate the grain qualities of five introduced hybrid rice varieties and four hybrids from the Indonesian Center for Rice Research (ICRR). In each location, the experiment was arranged in a randomized block design with four replications, using 4 m x 5 m plot size. Observations were made on grain yields, yield components, plant resistant to major pests and diseases, and grain quality. The plant resistance to brown plant hopper (BPH), bacterial leaf blight (BLB), and tungro was evaluated at the glasshouse. Results showed that in some locations the hybrid rice yielded significantly higher than did inbred variety Ciherang, but it was inconsistence over locations. In the dry season, the average yields of hybrid rice were higher than those in the wet season. The average yield of two hybrids, namely MR1 and H30 over 19 locations was each significantly higher than that of Ciherang, however, the difference was not more than 9.6%. These two hybrids were found adaptive to all locations. Hybrid MR1 was resistant to BLB [Xanthomonas oryzae pv, oryzae (Xoo) patotipe III], whereas H30 was moderately resistant to Xoo pathotype III and BPH biotype 3. The amylose contents of MR1 and H30 was medium and the head rice percentages was >80%.

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