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2014 Vol.23, Issue 3 Preview Page
Effect of Water Content in the Substrate of the Scion and Rootstock during Pre- and Post-Grafting Period on the Survival Rate and Quality of Tomato Plug Seedlings

접목 전후 대목과 접수의 상토 내 수분함량이 토마토 플러그묘의 접목 활착율과 묘소질에 미치는 영향

Ngoc-Thang Vu1
,
Ki Young Choi2
,
Il-Seop Kim1*
넉탕 부1
,
최 기영2
,
김 일섭1*
1Department of Horticulture, Kangwon National University, Chuncheon 200-701. Korea
2College of Agriculture and Life Science, Kangwon National University, Chuncheon 200-701. Korea
1강원대학교 원예학과
2강원대학교 농업생명과학대학
†Corresponding Author : kimilsop@kangwon.ac.kr
30 July 2014. pp. 199-204
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Abstract

This study evaluated the effect of water content in the substrate during pre- and post-grafting period on the survival rate and quality of tomato plug seedlings. Nine combinations of three water levels (high, medium, and low) were set up in the substrate of both scion and rootstock. The water content in the substrate of the scion did not affect the survival rate of grafted tomato seedlings, while the survival rate was statically different among the various water contents in the substrate of the rootstock. The maximum survival rates (100%) were observed in seedlings treated with high water levels in the substrate of the rootstock, and the survival rates declined with decreasing water content in the rootstock substrate. The growth characteristics were not significantly affected by different water content in the scion substrate, while they were statically different among the seedlings treated with various water contents in the rootstock substrate. The growth characteristics decreased with decreasing water content in the rootstock substrate. The highest value of compactness was observed in grafted seedlings, which combined medium water level in the scion and high water level in the rootstock substrate treatment. The root morphology of tomato seedlings was also affected by water content in the rootstock substrate. The total root surface area, total root length, and number of root tips decreased with deceasing water content in the rootstock substrate.

Keywords
growth parameters
root morphology
root stock
scion
water stress

본 실험은 토마토 플러그묘의 접목활착율과 묘소질 향상을 위한 적정 상토 내 수분함량을 구명하기 위하여 수행되었다. 시험구는 접수와 대목의 상토내 수분함량을 각각 3처리구(고, 중 저)씩, 총 9개의 조합을 설계하여 각 처리구별로 접목활착율과 묘의 생육을 조사하였다. 접수의 상토내 수분 함량의 차이는 접목 활착 율에 통계적 유의차는 나타나지 않았으나, 대목의 수분함량은 접목활착율에 영향을 미쳐 수분함량이 낮아질수 록 활착율도 저하하는 경향을 보였다. 수분 함량에 따른 묘소질도 접목활착율과 유사한 경향을 보여 접수의 수분함량차이는 생육지표에 큰 영향을 미치지 않았으나, 대목에서는 잎(엽수, 엽장, 엽폭)을 제외한 초장, SPAD함량, 경경은 수분함량의 차이에 따라 유의적 차이를 나타냈다. 묘의 충실도는 상토내 수분 함량이 접수 는 중간, 대목은 높은 조합에서 가장 좋게 나타났다. 근권부의 생육에서도 대목의 수분함량이 주로 영향을 미 쳐, 수분함량이 저하될수록 전 뿌리 표면적, 전 근장, root tip수 모두가 감소되는 것으로 나타났다.

키워드
생육지표
뿌리형태
대목
접수
수분스트레스
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Information
  • Publisher :The Korean Society for Bio-Environment Control
  • Publisher(Ko) :(사)한국생물환경조절학회
  • Journal Title :Protected Horticulture and Plant Factory
  • Journal Title(Ko) :시설원예ㆍ식물공장
  • Volume : 23
  • No :3
  • Pages :199-204
  • Received Date : 2014-07-25
  • Revised Date : 2014-08-13
  • Accepted Date : 2014-08-21
  • DOI :https://doi.org/10.12791/KSBEC.2014.23.3.199
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