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Comparison of Yield and Growth Characteristics of Platycodon grandiflorum According to the Ploidy Levels and Growing Conditions
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  • Journal title : Korean Journal of Plant Resources
  • Volume 29, Issue 3,  2016, pp.331-338
  • Publisher : The Plant Resources Society of Korea
  • DOI : 10.7732/kjpr.2016.29.3.331
 Title & Authors
Comparison of Yield and Growth Characteristics of Platycodon grandiflorum According to the Ploidy Levels and Growing Conditions
Lee, Hee-Doo; Seo, Dong-Yeon; Kwon, Soo-Jeong; Kim, Hyun-Jeong; Cho, Gab-Yeon; Boo, Hee-Ock; Roy, Swapan Kumar; Kim, Hag-Hyun;
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The present study aimed to compare and investigate the morphological characteristics and yield components according to ploidy level of diploid and tetraploid Platycodon grandiflorum under vinyl-greenhouse and open field conditions. Plant height of diploid and tetraploid P. grandiflorum was 51.3 ㎝, 54.0 ㎝, respectively. The results revealed that the plants grown in the vinyl-greenhouse showed significantly higher growth compared to those grown in the open field. Regardless of the growing place, diploid and tetraploid of P. grandiflorum showed the rapid elongation of internodes after 4 and 3 internodes respectively and elongation tends to be decreased as entering the flower-bud differentiation period. The starting day of flowering in vinyl-greenhouse cultivation was found to be faster than that of the open field cultivation by 2∼3 days and tended to be delayed by about 5∼6 days in tetraploid P. grandiflorum compared to diploid. Fresh weight of roots from the vinyl-greenhouse cultivation showed a high quantity as 34.2g and 49.4g in diploid and tetraploid P. grandiflorum, respectively and especially tetraploid P. grandiflorum was found to be increased by approximately 44.4% compared to other plots.
Tetraploid;Flowering date;Stomata size;Fresh weight;Platycodon grandiflorum;
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