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Varietal Differences of Dry Matter Accumulation and Related Characters in Cassava (Manihot esculenta Crantz)  

Park Chang-Ho (Dept. of Agronomy, Bogor Agricultural Univ.(IPB))
Kim Kwang-Ho (Dept. of Crop Science, Coll. Of Agri. & Life Sci., Konkuk Univ.,)
Aswidinnoor Hajrial (Dept. of Agronomy, Bogor Agricultural Univ.(IPB))
Rumawas Fred (Dept. of Agronomy, Bogor Agricultural Univ.(IPB))
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.50, no.1, 2005 , pp. 45-54 More about this Journal
Abstract
This study was carried out to investigate the patterns of dry matter (DM) production and accumulation, and to screen the relationships between related major growth characters and DM accumulation in four cassava varieties in Bogor $(6^{\circ}19, West Java, Indonesia. Gading and Adiral developed an enough source and canopy in short at the early growth phase and then translocated assimilates to storage roots with a higher partitioning rate, even these varieties were considered as early-bulking varieties, which have superior source and sink potentials in increasing yield and DM of tubers. The root/shoot ratio (R/SR), total dry weight (TDW), leaf area duration, leaf area index (LAI), and number of tubers showed higher positive correlations with the dry weight of roots (DWR), and the direct effects of TDW, R/SR, and LAI on the DWR were higher. These characters were considered to be useful target characters to screen cassava varieties with high yield potential and high DM in aspect of tuber production.
Keywords
Cassava; source to sink relationship; dry matter; path coefficient;
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