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http://dx.doi.org/10.12791/KSBEC.2014.23.1.056

Effects of Apex Removal on the Growth and Yield of Artichoke by Planting Times  

Seong, Ki-Cheol (Agricultural Research Center for Climate Change, NIHHS, RDA)
Kim, Chun Hwan (Agricultural Research Center for Climate Change, NIHHS, RDA)
Son, Danial (Agricultural Research Center for Climate Change, NIHHS, RDA)
Lim, Chan Gyu (Agricultural Research Center for Climate Change, NIHHS, RDA)
Cheon, Sung Jong (Agricultural Research Center for Climate Change, NIHHS, RDA)
Publication Information
Journal of Bio-Environment Control / v.23, no.1, 2014 , pp. 56-59 More about this Journal
Abstract
Apex removal is a common practice in artichoke cultivation to harvest heads of lateral shoots. This experiment was carried out to investigate the effect of apex removal by different planting times on the growth and yield of Artichoke (Cynara scolymus L.) in open field. Two treatments (apex removal and no apex removal) at three different planting times ($1^{st}$: Sep. 27, 2011, $2^{nd}$: March 29, 2012, and $3^{rd}$: Sep. 21, 2012) were tested using 'Green Globe' variety. There was no difference in the head characteristics and the number of harvested head between the treatments. The head weight was heavier in no apex removal of 242.7 g than the apex removal of 170.8 g. The yield also increased in no apex removal by 25% (1,249 kg/10a) compared to the apex removal of 997 kg/10a at the first planting time. At the second planting time, there was no difference in the head weights between the treatments. But the number of the harvested head was higher in no apex removal with 10.8 than 8.2 of the apex removal. The yield of no apex removal was 2,660 kg/10a, which was higher than 1,848 kg/10a of apex removal. At the third planting time, the head weight increased in no apex removal with 253.5 g compared to the apex removal with 218.7 g. The yield of no apex removal was 1,405 kg/10a, which was higher than 1,148 kg/10a of the apex removal. All the tests at 3 different planting times showed that the artichoke yields were higher in no apex removal than in apex removal. Therefore, it is desirable to cultivate artichoke without removing the apex for the higher yield and labor saving in open-field cultivation in Jeju island.
Keywords
flower bud; lateral shoot; open culture; transplanting;
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