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Abstract
[GROWTH AND YIELD OF F4 SWAMP RICE LINES ON LINE SWAMP]. Growth and yield of swamp rice are depending on the plant ability to adapt in swampy agro-ecosystem which characterized by several limiting factors. This study was addressed to evaluate the growth and yield characteristics of six lines of swamp rice bred for the development of high-yielding rice varieties best suited for swamp land production. Evaluation was conducted in a pot experiment using UBPR2, UBPR3,UBPR6, UBPR7, UBPR9, and UBPR10 as planting materials. These lines were the F4 generation derived from crosses involving local Bengkulu swamp rice varieties. Observations were made on 13 plant characteristics, dry matter accumulation, leaf area ratio, specific leaf weight, net assimilation rate, plant height, productive tiller number, heading date, maturity date, panicle length, grain number per panicle, percent of filled grain, and plant yield (the grain weight per clump). The collected data were subjected to analysis of variance and least significant difference test at 5% level. Results indicated that all lines physiologically exhibited similar growth patterns, excepting the capability of accumulating dry matter at 40 dap. In this case, UBPR6 produced the highest dry matter accumulation (24.34 g). Based on the morphological performances, significant variations among the lines were observed on most of the observed characteristics, except on productive tiller number and panicle length UBPR10 was the line produced the tallest plant stature (160.72 cm), UBPR2 was the earliest flowering and maturing line (76,33 and 111 dap), whereas UBPR6 was the line produced the highest grain number per panicle (212,2), percent of filled grain (95%), and plant yield (82.50 g per clump).
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References
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References
Alihamsyah & Ar-Riza. (2004). Potensi dan teknologi pemanfaatan lahan rawa lebak untuk pertanian. Makalah utama. Workshop Nasional Pengembangan Lahan Rawa Lebak. Kerjasama Balai Penelitian Pertanian Lahan Rawa-Pemda Kabupaten Hulu Sungai- Dinas Pertanian Prop. Kalimantan Selatan, Kandangan, 11-12 Oktober 2004.
BPS, (2015). Statistik Indonesia. Badan Statistik Indonesia.
Chozin, M., Pujiwati, H., Rustikawati, & Sumardi, (2016). Optimization of PCR Protocol and Primers Screening for Development of Rapid Marker Associated with Submergence Tolerance in Rice Genotypes International Seminar sustainable utilization of coastal resourcesin tropical zone, 19-20 October,2016, Bengkulu, Indonesia
Chozin,M. Sumardi, Sudjamiko, S. & Barchia, M.F. (2017). Genetic variability and traits association analyses on F2 generations for determination of selection criteria in Indonesian inland swamp rice breeding
Gardner, F.P., Pearce, R.B. & R.L.Mitchel, R. (2008). Physiology of crop plants. Diterjemahkan oleh Herawati Susilo dan Subiyanto (Fisiologi Tanaman Budidaya). UI-Press.
IRRI (International Rice Research Institute and International Board for Plant Genetic Resources), (1980). Descriptors for Rice (Oryza sativa L). The International Rice Research Institute P. O. Box 933, Manila, Philippines
Pusdata. (2013). Buku Informasi Statistik pekerjaan umum 2013. Jakarta : Kementerian Pekerjaan Umum Sekretariat Jenderal Pusat Pengolahan Data
Sagiman, S. (2007). Pemanfaatan lahan gambut dengan perspektif pertanian berkelanjutan. Orasi Ilmiah Guru Besar Tetap Ilmu Kesuburan Tanah, Fakultas Pertanian, Universitas Tanjungpura
Suriadikarta & Sutriadi. (2007). Jenis-jenis lahan berpotensi untuk pengembangan pertanian di lahan rawa. Jurnal Litbang Pertanian, 26(3), 115-122.
Suwignyo, R. Agus, F. Zulvica & Hendryansyah, (2008). Adaptasi teknologi produksi padi di lahan rawa lebak: Upaya menghindari pengaruh negatif terendamnya tanaman padi melalui pengaturan aplikasi pupuk nitrogen. Seminar Nasional Padi, Sukamandi
Yoshida, S. (1981). Fundamentals of Rice Crop Science. International Rice Research Institute. Los Banos, Philippines