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All Journal Jurnal Agrotropika Agroswagati : Jurnal Agronomi
Ruskandar, A.
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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SEED-DIPPING APPLICATION OF LOCAL ENDOPHYTIC BACTERIAL CONSORTIUM AGAINST BACTERIAL LEAF BLIGHT OF RICE Suryadi, Y.; Susilowati, D. N.; Kadir, T. S.; Ruskandar, A.
JURNAL AGROTROPIKA Vol 17, No 1 (2012): Agrotropika Vol.17 No.1 2012
Publisher : JURNAL AGROTROPIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (448.311 KB)

Abstract

Bacterial leaf blight of rice caused by Xanthomonas oryzae pv. oryzae is one of the most important diseases of rice, and to date no effective control measure yet. Alternative controls by several antagonistic microbes have been used to suppress bacterial infection. The aim of this re-search was to investigate antimicrobial effect of bacterial consortium as the primary step to control bacterial blight of rice. A total of five endophytic bacterial consortiums as biocontrol agents were developed and further evaluated for their capability in reducing bacterial blight of rice under screen house condition. The bacterial consortium was applied by seed dipping method using bacterial suspension prior to transplanting. The result showed that bacterial consortia were able to inhibit bacterial blight disease development both in vitro and in vivo test. Consortium labeled as C 1 (containing isolates *E 64,*E 65,*E 66, *C 1A, *C 29D) and C 2 (con-taining isolates *E 64,*E 65,*E 76, *C 1A, *CPKKP 3.5) showed higher bacterial blight percent reduction by two seed-dipping treatments of 24 h and 48 h incubation time, whilst C 4 and C 5 only effective by seed-dipping of 72 h incubation; however none of these consortium affected plant height as well as yield. It was indicated that C 1 and C 2 consortium have relatively high antagonistic activity than that of control treatment and could be applied further to reduce bacterial blight disease development on rice. Key words: Xanthomonas oryzae pv. oryzae, endophytic, rice, bacterial consortium, seed-dipping application
PENGARUH PEMUPUKAN NPK MAJEMUK DAN UREA TERHADAP PERTUMBUHAN DAN HASIL PADI GOGO Hasmi, Idrus; Zarwazi, L. M.; Widyantoro, Widyantoro; Ruskandar, A.
Agroswagati : Jurnal Agronomi Vol 8 No 2 (2020)
Publisher : Prodi Agronomi Pascasarjana Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/agroswagati.v8i2.4947

Abstract

Research on improving fertilization technology of upland rice is still being developed. This research aimed to examine the most efficient technology fertilization (NPK and Urea) to increase the productivity of upland rice. Research had been conducted in upland rice fields, located at Ploso Kerep, Indramayu District, in MT I 2012/2013 designed in split plot with three replications. The main plot was the level of NPK fertilizer, consisting of (A) Without NPK (0 kg / ha), (B) NPK 100 kg / ha, (C) NPK 200 kg / ha, and (D) NPK 300 kg / Ha, and as subplots are (1) Without Urea 0 kg / ha, (2) Urea 100 kg / ha, (3) Urea 200 kg / ha and (4) Urea 300 kg / ha. The results showed that NPK and Urea can improve growth and yield of upland rice. NPK fertilizer with 300 kg / ha has produced the highest number of panicles per hill (12.07 grain panicles), while at Urea 200 kg / ha resulted in the highest panicle number of 11.54 grain panicles. The highest dry grain yield (5.78 t / ha) was obtained at NPK 300 kg / ha with an average increase of 100 kg / ha NPK reaching 370 kg / ha. The combination of NPK 300 kg / ha and with 300 kg urea / ha, the weight of 1000 urea 300 kg / ha can be increased to 7.58% when compared without fertilizing.
Co-Authors D. N. Susilowati, D. N. Daniel Happy Putra Hasmi, Idrus T. S. Kadir, T. S. Y. Suryadi, Y. Zarwazi, L. M.