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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Journal of Agroecology AGRIVITA, Journal of Agricultural Science
BAMBANG HELIYANTO
Balai Penelitian Tanaman Kelapa dan Palma Lain Po Box 1004, Manado 900051
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance

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COMPATIBILITY LEVEL OF SEVEN INDONESIAN LOCAL JATROPHA (Jatropha curcas Linn.) CROSSING ACCESSION Maftuchah, Maftuchah; Zainudin, Agus; Heliyanto, Bambang; Sudarmo, Hadi
Journal of Agroecology Vol 1, No 1 (2015)
Publisher : Journal of Agroecology

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Abstract

Jatropha curcas Linn., is one of the oil plant producers, which can be processed to be the substitute fuel for diesel. The purpose of this research is to gain information of accession crosses compatibility level from different selected Jatropha. The study was conducted using seven accessions of Indonesia Jatropha planting material, which has a high productivity expectations, the HS-49, SP-16, SP-38, SP-8, SM-33, SP-34, and SM-35. The seven accessions were selected mass. Jatropha accessions used as an elder in the course of this research came from Gardens Jatropha Plant Germplasm Collection located in Asembagus–Situbondo. The crossings between seven accessions are not entirely successfully producing fruit and seeds. The crossing between SP-38 X HS-49 produced the highest number of fruits and seeds and followed by the crossing between SM-35 X HS-49. Of all the 42 crossing combinations, there are 14 crossing combinations that do not produce fruit and seeds at all.
Changes of Physical Properties of Sandy Soil And Growth of Physic Nut (Jatropha Curcas L.) Due to Addition of Clay and Organic Matter Djajadi, Djajadi; Heliyanto, Bambang; Hidayah, Nurul
AGRIVITA Journal of Agricultural Science Vol 33, No 3 (2011)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v33i3.75

Abstract

Agricultural sandy soil in Situbondo, East Java province, Indonesia which is used as a center garden for physic nut seed production has poor physical properties of soil indicated by low capacity to retain water. For plant growth of physic nut, the sandy soil physical properties need to be improved. In this study, the influence of addition of clay together with organic matter and intervals of irrigation to sandy soil on aggregate stability, bulk density, total soil porosity, water available content and plant growth of physic nut was investigated. The rates of clay and organic matter incorporated to top sandy soil were 5% clay + 0.8% organic matter and 1O% clay + 1.6% organic matter. Two intervals of irrigation tested were 10 days and 20 days. The results showed that incorporation of clay together with organic matter increased aggregate stability, total soil porosity, available water content and plant growth of physic nut. Intervals of irrigation had no influence of soil physical properties and plant growth.Keywords: agricultural, sandy soil, clay, organic matter, soil properties, physic nut
Evaluasi Klon-Klon Tebu Potensial di Lahan Kering ,, Djumali; Heliyanto, Bambang; Khuluq, dan Ahmad Dhiaul
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 46 No. 3 (2018): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (28.755 KB) | DOI: 10.24831/jai.v46i3.21082

Abstract

The candidates for new superior varieties are  expected to be able to increase the sugar yield in the upland area. Germplasm evaluation has indicated some clones had potentially high sugar yield in upland area. The study was conducted at Asembagus Experimental Station, Situbondo Regency, East Java, from December 2016 to November 2017. The study aimed to obtain sugarcane clones with higher sugar yield than existing varieties on upland area. Twelve potential sugarcane clones (17, 87, 90, 104, 212, 351, 354, 451, 452, PBG 2, 386 SOF 1118, and 400 SOF 1132) and 2 check varieties (PS 881 and Cenning) were arranged in a randomized block design with three replicates. The results showed that the sugarcane production of 104, 212, and PBG 2 clones  (97.42-98.26 ton ha-1) were not different from productivity of Cenning (105.42 ton ha-1) but they were higher than that of PS 881 (75.68 ton ha-1). The sugar content  of 104 and PBG 2 clones (9.43-9.46%) was higher than Cenning (6.94%) but lower than PS 881 (11.66%). The sugar yields (9.16-9.24 ton ha-1) of 104 and PBG 2 clones were higher than Cenning (7.47 ton ha-1) but they were not different from PS 881 (8.84 ton ha-1).
Co-Authors Agus Zainudin Djajadi Djajadi Djumali , Hadi Sudarmo Khuluq, dan Ahmad Dhiaul Maftuchah Maftuchah NURUL HIDAYAH