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Agronomic Characteristics and Path-coefficients of Safflower (Carthamus tinctorius L.) Collections  

Park, Gyu-Hwan (Dept. of Plant Resources, College of Life & Resources, Sangju Natl. Univ.)
Jung, Do-Chul (Dept. of Plant Resources, College of Life & Resources, Sangju Natl. Univ.)
Kim, Jae-Cheol (Research Institute of Natural Product, Kyeongbuk Agric. Res. & Ext. Serv.)
Jeon, Chi-Hyeong (Dept. of Plant Resources, College of Life & Resources, Sangju Natl. Univ.)
Kim, Kyung-Min (Institute of Genetic Engineering, Kyungpook Natl. Univ.)
Publication Information
Korean Journal of Medicinal Crop Science / v.12, no.1, 2004 , pp. 17-23 More about this Journal
Abstract
This study was carried out to obtain the basic information on mating parents and selection for high yielding safflower breeding. Thirty nine world safflower lines, which had collected from 13 countries of origjn, were evaluated for major agronomic characters, correlation and path-coefficients. The results obtained were summarized as follows. Days to flowers ranged from 83 days to 100 days. Days to flower of most foreign lines were later than that of domestic lines. Plant height ranged from 75 cm to 162 cm. The plant height and stem diameter of most foreign lines were higher than those of domestic lines. The leaf number and size of domestic lines were much more than those of foreign lines. The total branch numbers of foreign lines were more than domestic lines. Particularly, the number of third branch ranged from 0 to 25 and there were none in domestic lines. The number of corolla of foreign lines was much more than that of domestic lines. The yield of foreign lines collected from Central Asia and United States of America were more than any others. Significantly positive correlations were observed between yield and days to flower, stem diameter, the number of branch and the number of corolla. In the analysis of path-coefficient, the highest direct effects on yield was the number of corolla followed by the number of total branch, whereas those of the number of second branch and stem diameter were negative.
Keywords
safflower; breeding; agronomic characters; correlation; path-coefficients;
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