Sujinah, Sujinah
Balai Besar Penelitian Tanaman Padi Jl. Raya IX Sukamandi, Subang Indonesia

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Analisis Karakter Agronomi dan Fisiologi Padi pada Kondisi Cekaman Rendaman Stagnan Sujinah, Sujinah; Agustiani, Nurwulan; Rumanti, Indrastuti A.
Jurnal Penelitian Pertanian Tanaman Pangan Vol 4, No 1 (2020): April 2020
Publisher : Pusat Penelitian dan Pengembangan Tanaman Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1231.261 KB) | DOI: 10.21082/jpptp.v4n1.2020.p17-26

Abstract

Stagnant flooding is a condition in swampy area and become constraints which causes decrease yield of rice. Therefore, it is necesarry of varieties that have tolerance to stagnant flooding. The purpose of this research were to analyze of agronomic and physiological characters of rice on stagnant flooding stress. The experiment was conducted at two environmental conditions in wet season of 2017/2018 in Sukamandi Experimental Station, Subang, West Java. A total of 10 genotypes (IR14D157, IRRI 119, IRRI 154, IR14D121, Inpara 3, Inpara 4, Inpara 8, Inpari 30, Tapus, and IR 42) were planted use Randomized Complete Block Design (RCBD) with 4 replicants. Variables consisted of growth (plant height, tillering, green leaves), stem elongation, nonstructural carbohydrate, chloropyll content, stem aerenchyma, yield component, and yield. The result showed that stagnant flooding caused an increase in plant height of 4% , stem elongation, and flowering. In addition, it was observed the decreased of tiller number of 50%, nonstructural carbohydrate, chloropyll content, productive tiller, spikelet number, % filled grain, and yield. Genotype of IR14D121 and Tapus showed the highest productivity, of 4,91 t/ha and 4,45 t/ha at stagnant flooding, at which productivity decreased up to 20% compared to the optimum condition.
Validasi Paket Teknologi Budi Daya Padi (Oryza sativa) Lahan Rawa secara Intensif Sujinah, Sujinah; Agustiani, Nurwulan; Gunawan, Indra; Margaret, Swisci
Jurnal Penelitian Pertanian Tanaman Pangan Vol 4, No 3 (2020): Desember 2020
Publisher : Pusat Penelitian dan Pengembangan Tanaman Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jpptp.v4n3.2020.p125-133

Abstract

An intensive swampland rice technology package, dubbed as RAISA, consisted of water and land management, swampland specific variety, population density bio-fertilizer, soil ameliorant, inorganic fertilization, integrated pest management, and use of mechanization. Validation of RAISA’s technology was aimed to determine technology components which significantly affected yield increase. The experiment was conducted at Karang Agung Experimental Station and farmer’s field in Banyuasin, South Sumatera, using a Randomized Complete Block Design with seven treatments and four replications. The treatments consisted of RAISA minus specific variety (P1), RAISA minus optimum plant population (P2), RAISA minus bio-fertilizer (P3), RAISA minus soil ameliorant (P4), RAISA minus inorganic fertilizer (P5), RAISA full package (P6), and farmer’s crop cultivation technique as control (P7). Result showed that the variety affected significantly on plant height, and plant population affected the number of tillers. The RAISA technological package increased rice yield by 41% compared to that of farmer practice. The RAISA technological components that significantly increased rice yield are variety, plant population, and soil ameliorant. RAISA is considered feasible to be applied with an R/C ratio of 1.57-1.97.