Potato ( Solanum tuberosum L.) cultivation in double-cropping systems requires planting whole seed tubers of cultivars with a short dormant period (50–70 days). We used the cultivar ‘Saebong’ to determine the ideal seed tuber size for dou- ble-...
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https://www.riss.kr/link?id=A108565611
Park Hyun-Jin (Highland Agriculture Research Institute , National Institute of Crop Science (NICS), Rural Development Administration (RDA) , 25342 Gangwon , Republic of Korea) ; Lee Gyu-Bin (Highland Agriculture Research Institute , National Institute of Crop Science (NICS), Rural Development Administration (RDA) , 25342 Gangwon , Republic of Korea) ; Park Young-Eun (Highland Agriculture Research Institute , National Institute of Crop Science (NICS), Rural Development Administration (RDA) , 25342 Gangwon , Republic of Korea) ; 진용익 (국립식량과학원고령지농업연구소) ; Choi Jang-Gyu (Highland Agriculture Research Institute , National Institute of Crop Science (NICS), Rural Development Administration (RDA) , 25342 Gangwon , Republic of Korea) ; Seo Jin-Hee (Highland Agriculture Research Institute , National Institute of Crop Science (NICS), Rural Development Administration (RDA) , 25342 Gangwon , Republic of Korea) ; Cheon Chung-Gi (Highland Agriculture Research Institute , National Institute of Crop Science (NICS), Rural Development Administration (RDA) , 25342 Gangwon , Republic of Korea) ; Chang Dong Chil (Technology Cooperation Bureau, RDA , 54875 Jeonju , Republic of Korea) ; Cho Ji-Hong (Planning and Coordination Division , NICS , 55365 , RDA Jeonju , Republic of Korea) ; Kang Jin-Ho (Graduate School of International Agricultural Technology and Crop Biotechnology Institute, Institutes of GreenBio Science and Technology , Seoul National University , 25354 Pyeongchang , Republic of Korea)
2023
English
KCI등재,SCIE,SCOPUS
학술저널
167-178(12쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
Potato ( Solanum tuberosum L.) cultivation in double-cropping systems requires planting whole seed tubers of cultivars with a short dormant period (50–70 days). We used the cultivar ‘Saebong’ to determine the ideal seed tuber size for dou- ble-...
Potato ( Solanum tuberosum L.) cultivation in double-cropping systems requires planting whole seed tubers of cultivars with a short dormant period (50–70 days). We used the cultivar ‘Saebong’ to determine the ideal seed tuber size for dou- ble-cropping. Whole tubers were categorized as small (10–20 g), medium (30–40 g), and large (50–60 g), and their dor- mancy characteristics were assessed at six dormancy stages. As seed tuber size increased, the dormancy period decreased and the sprouting rate of tubers increased. Plant hormone content analysis showed that abscisic acid (ABA) levels were negatively correlated with tuber size throughout dormancy. In contrast, gibberellin (GA 3 ) and zeatin levels were positively correlated with tuber size during sprouting, suggesting that the faster dormancy release in larger tubers is due to lower ABA during dormancy and higher GA 3 and zeatin during sprouting. Additionally, we examined tuber quality and yield characteristics using the same tuber size categories. Medium and large tubers showed higher sprouting rates, more eyes per tuber, higher starch content, and longer sprouts than those of small tubers. Moreover, our fi eld test showed that the sprouts of medium and large tubers emerged earlier than sprouts of small tubers, resulting in longer stems and a higher ground cover rate. Medium and large seed tubers produced 4.30–4.70-fold greater marketable yields than small tubers.
Thus, medium and large whole seed tubers are ideal for double cropping, and larger seed tubers exhibit faster dormancy release than their smaller counterparts.
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