Suwarno, Punjung Medaraji
Seed Industry Technology Study Program, Collage Of Vocational Studies, Bogor Agricultural University, Kampus IPB Cilibende Jl. Kumbang No. 14 Bogor, 16151, Indonesia

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Journal : Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian

STUDI KERAGAAN VARIETAS PADI PADA DUA KONDISI LINGKUNGAN: Study of Rice Varieties Performance in Two Environments Condition Punjung Medaraji Suwarno; Desta Wirnas; Ahmad Junaedi
Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Vol. 12 No. Khusus (2022): Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian, Vol
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jstsv.12.Khusus.15-21

Abstract

Rice is a staple food for most of Asian, especially for Indonesian people. Population growth has been increasing every year while farmlands decreased driving farmers to convert sub optimum fields to agricultural land. This research was conducted to study performance of 4 rice varieties planted in 2 environmental conditions (wet and dry) at Sawah Baru Screenhouse, IPB Dramaga, using Randomized Complete Block Design with 2 factors; 4 rice varieties namely Jatiluhur, Mentik Wangi, IR64 and Way Apo Buru with 2 levels of environments and 3 replications. Way Apo Buru showed relatively constant values in number of panicle (8.7 in wet to 8.3 in dry), and IR64 showed relatively constant values in grain weight per panicle in both environments (3.2 g in wet to 3.1 g in dry). Jatiluhur as an upland rice showed the best values in plant height (99.83 cm), grain weight per panicle (9.59 g) and total grain per panicle (185.67). ABSTRAKPadi merupakan bahan makanan pokok bagi sebagian besar penduduk Asia, khususnya masyarakat Indonesia. Pertumbuhan penduduk yang semakin meningkat setiap tahunnya dan semakin sempitnya lahan pertanian mendorong para petani untuk memaksimalkan produksi padi melalui pemanfaatan lahan marginal sebagai lahan pertanian. Penelitian ini dilakukan untuk membandingkan 4 varietas padi yang ditanam pada kondisi lingkungan optimum dan lingkungan yang memiliki cekaman kekeringan. Penelitian ini dilaksanakan di Screenhouse Sawah Baru IPB Dramaga dengan menggunakan Rancangan Kelompok Lengkap Teracak dengan 2 faktor, yaitu varietas (Jatiluhur, Mentik Wangi, IR64 dan Way Apo Buru) dan kondisi lingkungan dengan 3 ulangan. Way Apo Buru menunjukkan nilai yang relatif konstan pada karakter jumlah anakan (8,7 pada lingkungan basah sampai 8,3 pada lingkungan kering), dan IR64 menunjukkan nilai yang relatif konstan pada karakter bobot benih per malai (3,2 g pada lingkungan basah sampai 3,1 g pada lingkungan kering). Jatiluhur yang termasuk dalam varietas padi gogo menunjukkan keunggulan pada karakter vegetatif tinggi tanaman (99,83 cm), karakter generatif bobot gabah per malai (9,59 g) dan jumlah gabah total per malai (185,67 butir) dalam dua kondisi lingkungan.
The The Effect of Potential Water Pressure on the Emergence of Radicles in Maize Seeds (Zea mays): Pengaruh Tekanan Potensial Air Terhadap Kemunculan Radikula pada Benih Jagung (Zea mays) Suwarno, Punjung Medaraji Suwarno; Abdul Qadir; Aditya Kusumawardana; Ritawati
Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Vol. 13 No. 2 (2023): Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jstsv.13.2.11-19

Abstract

Water is an important factor for plant growth. A few studies about the amount of water required by the seed for radicle emergence in germination has been done. This research was conducted at the Laboratory of Seed Science and Technology, Faculty of Agriculture IPB Bogor. Maize seeds were planted using a solution of Polyethylene Glycol (PEG) 6000 with a concentration level of 0%, 5%, 10%, 20%, and 30%. A Completely Randomized Design with 3 replications was used in this research. The appearance of the radicle first occurred in phase II, namely during the 48-hour observation for the Ψ -0,13 MPa treatment (5% PEG) and 60 hours for the Ψ -0,4 MPa treatment (10% PEG). The results showed that testing maize seed vigor under drought stress can use water potential (Ψ) higher than -0,4 MPa. The results showed that water potential (Ψ) of -0,4 MPa or higher can be used in vigor testing of maize seed.