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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Manajemen dan Agribisnis Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Mintakat: Jurnal Arsitektur Wacana, Jurnal Sosial dan Humaniora Journal of Innovation and Applied Technology Panggung IKRA-ITH Informatika : Jurnal Komputer dan Informatika Jurnal Teknologi & Industri Hasil Pertanian Jurnal Sitakara Jurnal Riset Pendidikan Kimia (JRPK) Agroindustrial Journal WIJOB Prosiding Seminar Nasional Pascasarjana
IMAM SANTOSO
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Agriculture, Biological Sciences & Forestry Arts Humanities Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Social Sciences

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Journal : Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)

 1 
Indeterminasi Sekuensial Pembungaan dan Ketidakmampuan Produksi Kedelai di Lapang Akibat Penambahan Cahaya Kontinu pada Kondisi Terbuka dan Ternaungi Herdhata Agusta; Imam Santoso
Indonesian Journal of Agronomy Vol. 33 No. 3 (2005): 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 (246.919 KB) | DOI: 10.24831/jai.v33i3.1261

Abstract

Additional continuous light (photoperiod of 24 hours/day) with irradiation value of 0.61 cal/cm2/minute and illumination value of 59 lux was able to suppress the development of flowering, pod building, grain filling and the production of soybean variety Bromo,  so that the sum of flowers, pods and grain production dropped and reached to null value.   However, the plant height increased with remarkable measurement from normally 78.0 cm to be 193.2 cm.  At the later condition the plant lodged and crept.  Due to additional continuous light irradiation at value of 0.03 cal/cm2/minute with average illumination value of 17 lux, the grain production was still null ton/ha.  However, the formed flowers and pods were not well developed.  At very little additional continuous light irradiation at the value of 0.01 cal/cm2/minute with illumination value of  2 lux, soybean production reached only 0.72 tons/ha, which at the normal condition it was able to produce grain legumes in amount to 1.53 tons/ha.  Light shading at the level of 56% could not improve the negative effect of the additional continuous light excess, so that the grain production was not much better.  However, grain production was either not reduced significantly due to the light shading.  It showed that the soybean is well tolerant against the shading treatment at this additional light condition.   Key words :  light, shading, soybean, air carbon dioxide, photoperiod  
Co-Authors Arif Julianto Desty Yuwandini Dian Septyani Winanda Dian Setyawati Dina Poerwoningsih Effendi, Mas'ud Erlina Laksmiani Wahjutami, Erlina Laksmiani Erwin Arya Winanto Etty Carolina Herdhata Agusta I Nyoman Larry Julianto Mita Indriani Muktiningsih Nurjayadi Nofroza Yelli Nova Tri Romadloni Panji Deoranto Siti Asmaul Mustaniroh Siti Namiran Hadis Sularso Budilaksono Yuli Christyono