Karakter Tanaman yang Mempengaruhi Hasil Tanaman Jarak Pagar (Jatropha curcas L.)

• Main Authors: Djumali ., Elda Nurnasari
• Format: Article
• Language: Indonesian
• Published: Institut Pertanian Bogor 2014-07-01
• Series: Jurnal Agronomi Indonesia
• Online Access: http://journal.ipb.ac.id/index.php/jurnalagronomi/article/view/8156
• ISSN: 2085-2916; 2337-3652

ABSTRACT      Yield variety of physic nut is one of the factor that cause the gap between the potential and actual yields. In a homogeneous environment, plant yield is controlled by multigenes. To obtain a homogeneous yield, it is necessary to determine the plant characters affecting physic nut yield. A research was carried out in Asembagus and Muktiharjo Research Stations in January-December 2010 to observe plant growth and yield of IP-3A and IP-3M genotypes. Data were analyzed backward stepwise to determine the plant characters that affect plant yield. The results showed that IP-3A plant characters affecting yield from the greatest were the number of branches, the ratio C / N in petiol, the number of non-productive branches, the amount of glucose needed to form per gram petiol tissue, C-organic content in petiol, the ratio C / N in stem, C-organic content in stem, and the amount of glucose needed to form per gram stem tissue. Of the eight characters, only the number of non-productive branches negatively affected on yield, while other characters showed positive influence. The IP-3M plant characters affecting yield from the greatest were the ratio C / N in shoot, N content in shoot, the amount of glucose needed to form per gram shoot and stem tissues, C-organic content in shoot and stem, the amount of glucose needed to form per gram leaf tissue, C-organic content in leaf and water content in stem. Of the nine characters, only the N content in shoot that negatively affected on plant yield, while other characters showed positive influence. Keywords: character, growth, Jatropha curcas, productive branches, yield