D Setyorini
Balai Pengkajian Teknologi Pertanian Jawa Timur Jl. Raya Karangploso KM 4 Malang, Jawa Timur

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Kualitas Buah Tomat pada Pertanaman dengan Mulsa Plastik Berbeda Setyorini, D; Indradewa, D; Sulistyaningsih, E
Jurnal Hortikultura Vol 19, No 4 (2009): Desember 2009
Publisher : Indonesian Center for Horticultural Research and Development

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Abstract

Kondisi lingkungan merupakan salah satu faktor yang memengaruhi pertumbuhan tanaman. Memodifikasikondisi lingkungan selain akan memengaruhi pertumbuhan tanaman juga dapat memengaruhi kualitas buah yangdihasilkan. Penelitian dilaksanakan di Kebun Percobaan dan Laboratorium Hortikultura, Fakultas Pertanian, sertaLaboratorium Pangan dan Gizi, Fakultas Teknologi Hasil Pertanian, Universitas Gadja Mada, Yogyakarta, pada bulanFebruari sampai Juni 2004. Rancangan yang digunakan adalah acak kelompok, 5 perlakuan warna mulsa plastikdengan 4 kali ulangan. Variabel pengamatan meliputi jumlah buah per tanaman, buah rusak per plot, berat per buah,diameter dan panjang buah, kekerasan buah, nilai kematangan buah, total padatan terlarut dalam buah, kandunganvitamin C buah, dan kandungan asam dominan buah. Hasil penelitian menunjukkan bahwa warna mulsa plastikberpengaruh terhadap parameter kualitas spesifik buah tomat. Penggunaan mulsa plastik merah dapat memperkecilpersentase buah rusak, namun menurunkan nilai koefisien kematangan buah, sedangkan penggunaan mulsa plastikbiru dapat meningkatkan kekerasan buah. Sementara itu, mulsa plastik hitam perak dapat meningkatkan kadar asamdominan yang cocok untuk budidaya tomat olahanABSTRACT. Setyorini, D., D. Indradewa, and E. Sulistyaningsih. 2009. Fruit Quality of Tomato Planted inDifferent Plastic Mulch. Environment conditions is one of important factor that may affect plant growth. Modificationof environment conditions will not only affect plant growth, but also fruit quality. This study was carried out in TheExperimental Garden and Horticultural Laboratory of College of Agriculture, Gadjah Mada University. The experimentwas set up in a randomize block design with 5 levels of treatments (plastic mulch color) and 4 replications. Parameterobserved were fruit number per plant, damaged fruit per plot, fruit weight, diameter and length of fruit, fruit firmness,coefficient of fruit ripening, total soluble solid, vitamin C, and dominant acid. The results showed that the color ofplastic mulch had a specific effect on tomatoes fruit quality parameter. The use of red plastic mulch reduce thepercentage of damage fruits but decreased the coefficient of fruit ripening. The blue plastic mulch had a significanteffect on increase fruit firmnes. Meanwhile, the silvery black plastic mulch could increase the dominant acid contentthat was suitable for growing processing tomatoes.
TEMPORAL AND SEASONAL VARIATION OF SEDIMENT MOVEMENT IN THE TERRACED PADDY FIELDS SYSTEM SUKRISTIYONUBOWO, .; SETYORINI, D
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 31 (2010): Juli 2010
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n31.2010.%p

Abstract

Temporal and seasonal variation of sediment movement in terraced paddy fields has been studied at Keji Village, in Semarang District for the Wet Season 2003-04 and the Dry Season 2004. Twelve terraced paddy fields with different number and size of terraces were used in this research,corresponding to four treatments and three replications. Terraces were flat, different in size, and descending to the river. The objective was to study the temporal and seasonal variations of sediment movement during rice growth in the wet season and the dry season. Measurements were conducted in the four treatments being tested including Farmer Practices, Farmer Practices + Rice Straw, Improved Technology, and Improved Technology + Rice Straw. Sampling and measuring of irrigation water discharge and suspended sediment were carried out at puddling, before planting, vegetative stage, and at generative stage. The highest temporal discharge as well as sediment concentration of irrigation water and suspended sediment both in wet and dry seasons were observed at the puddling stage and significantly different with the following rice growth stages. In contrast, the lowest temporal discharge and sediment concentration were found at the vegetative stage. Seasonal discharge and sediment concentration of irrigation water and suspended sediment in wet season were higher than in dry season. The highest incoming and outgoing sediments both in wet and dry season were observed at the vegetative stage and significantly different at generative stage, planting and puddling. The amount of seasonal incoming sediment were 4,422 ± 361 and 1,779 ± 126 kg ha-1 and the outgoing sediment were 3,345 ± 258 and 1,400 ± 113 kg ha-1 for the wet season 2003-04 and dry season 2004, respectively. The surplus of incoming sediment by outgoing sediment demonstrates the environmental services provided by terraced paddy fields system.