토양수분퍼텐셜이 복분자 습해와 토양특성에 미치는 영향

국문 초록 (Abstract)

토양수분포텐셜이 복분자 생육에 미치는 영향을 조사하기 위하여 복분자 시설하우스에서 -5 ~-40 kPa 수준으로 토양수분을 처리하였다. 시설하우스내의 토양유효수분은 5.6%이었고, 수분포텐셜에 따라 토양수분함량이 높아지면 토양 pH와 치환성 Ca은 증가하였고, 치환성 K와 전질소 함량은 감소하였으며, 유기물함량은 수분처리 9일 이후부터 감소하였다. 수분포텐셜과 토양수분함량 간에는 y = 96.534 - 20.28In(x)의 지수함수 근사식이 성립되었다. 수분포텐셜이 -20 kPa (토양 수분 27.5%) 이상이면 복분자 잎의 엽록소 함량이 감소하였고 질소흡수가 억제되며, P 함량은 수분공급 시간에 따라 증가하였다. 수분포텐셜 -20 kPa 이상의 수준으로 7일 이상이 경과하면 뿌리활력이 급격히 감소되어 생육이 위축되었다. 지상부에 대한 뿌리비율 (T/R률)은 수분공급 9일까지 급격히 감소하였다. 휴면기의 복분자 줄기와 뿌리의 탄수화물 함량은 -5 kPa과 -10 kPa 처리구에서 가장 낮아 동해 위험도가 가장 높았다.

다국어 초록 (Multilingual Abstract)

This study was conducted to examine the impacts of different soil water potentials on environmental soil properties related to the moisture injury of Korean raspberry (Rubus coreanus Miq.). Soil water potential in the plastic film house plots was differentiated from -5 to -40 kPa. Soils in the plots contained 5.6% of plant available water. Increasing soil water contents based on the changes in water potential increased soil pH and exchangeable Ca<SUP>2+</SUP> content and decreased exchangeable K<SUP>+</SUP> and total N contents. It also declined soil organic matter content at 9 days after water treatments. Relationship between water potential and soil water content was given as an exponential equation, y = 96.534 - 20.28In(x). In particular, when the water potential was higher than -20 kPa (27.5% of soil moisture content), it decreased chlorophyll content in the raspberry leaves, inhibited N uptake by the plant, and increased phosphorus content with increasing days after water treatment. Also, as the 7 days after water treatment at higher than -20 kPa of water potential, the root activity of the plant was significantly decreased, and trunk (top)/root (T/R) ratio of the plant markedly declined until 9 days after water supply. Carbohydrate contents in the raspberry plant leaves and roots at dormant stage were the lowest at -5 and -10 kPa of water potential plots, and it may cause winter injury to the plant.

목차 (Table of Contents)

• 서언
• 재료 및 방법
• 결과 및 고찰
• 요약
• 인용문헌

참고문헌 (Reference)

1 안영희, "한국에서의 자생 복분자딸기 분포 및 자생지의 생태적 특성" 한국환경생태학회 21 (21): 176-185, 2007

2 김선관, "토양학" 그린토마토 2008

3 남상식, "토양 수분 퍼텐셜에 따른 마늘의 뿌리 및 초장 생장 반응" 한국원예학회 23 (23): 1-5, 2005

4 남상식, "토양 수분 퍼텐셜에 따른 마늘의 뿌리 및 초장 생장 반응" 한국원예학회 23 (23): 1-5, 2005

5 강석범, "침수조건이 ‘캠벨얼리’ 포도나무의 생육, 뿌리활성과 수체 무기성분 함량에 미치는 영향" 한국원예학회 28 (28): 172-179, 2010

6 김학진, "점적관개 시 토성별 습윤·건조 특성 비교" 한국생물환경조절학회 18 (18): 309-315, 2009

7 전라북도, "전북 복분자산업 광역화 추진백서" 전라 북도청 2010

8 이영노, "원색한국식물도감" 교학사 2006

9 박순남, "분광광도계를 이용한 점토함량 분석의 정확성 및 정밀성 평가" 한국응용생명화학회 49 (49): 153-157, 2006

10 김만지, "복분자딸기의 재배 및 전망" (8) : 110-113, 2000

11 이창복, "대한식물도감" 향문사 1985

12 강남준, "관수량 조절이 시설 토마토 과실의 당도와 수량에 미치는 영향" 한국생물환경조절학회 15 (15): 335-339, 2006

13 Lindsay, W.L, "chemical equilibration in soils" Wiley Interscience 129-148, 1979

14 Neilsen, D, "Using SPAD-502 values to access the nitrogen status of apple trees" 30 : 508-512, 1995

15 Lawton, K, "The influence of soil aeration on the growth and absorption of nutirents by corn plant" 10 : 263-268, 1945

16 Ponnamperuma, F.N, "The chemistry of submerged soils" 24 : 29-96, 1972

17 Tripepi, R.R, "Stem hypoxia and root respiration of flooded maple and birch seedlings" 60 : 567-571, 1984

18 Blackman, P.G, "Root to shoot communication in maize plants and the effect of soil drying" 36 : 39-48, 1985

19 Carperter, J.R, "Root respiration characteristics of flood tolerant and intoleran tree species" 105 : 684-687, 1980

20 Hirata, K, "Plant nutrient experiment method" Hakubunkan Shinshm Publishers 52-55, 1990

21 Lee, S.Y, "Physiological response of barley seedlings to salt stress" 41 : 665-671, 1996

22 Gee, G.W, "Particle size analysis" American Society of Agronomy f383-411, 1986

23 Smethurst, C.F, "Nutritional and chlorophyll fluorescence response of lucerne (Medicago sativa) to waterlogging and subsequent recovery" 270 : 31-45, 2005

24 NIAST, "Method of soil and plant analysis" National Institute of Agricultural Science and Technology 2000

25 Rubio, G, "Mehcanism for the increase in phosphorus uptake of waterlogged plants: soil phosphorus availability, root morphology and uptake kinetics" 112 : 150-155, 1997

26 Close, D.C, "Long term waterlogging: nutrient, gas exchange, photochemical and piment characteristics of Eucalyptus nitens saplings" 50 : 843-847, 2003

27 Kozlowski, T.T, "Effects of flooding on water, carbohydrate, and mineral relations" Academic Press 165-193, 1984

28 Kim, Y.B, "Effect of soil moisture on quality and yield in tomatoes" 41 (41): 139-142, 2000

29 Ro, H.M., "Effect of dissolved oxygen on the leaf water potentials, leaf nutrient compositions, root activities of Tsugaru apple tree an the chemical environment of rhizosphere" 36 : 493-499, 1995

30 Harry, T, "Drough induced changes in shoot and root growth of young cotten plants" 3 : 183-187, 1999

31 Jung, G.B, "Distribution of heavy metal contents in medicinal plants and soils with soil texture" 29 : 158-164, 1996

32 Park, P.J., "Control of disease, insect pest and weed in cultivation area of Rubus coreanus Miquel" 26 : 56-67, 2002