Abstract
본 시험은 논에서의 콩 재배 확대 및 기상여건상 상습적인 과습 장해에 대비하여 내습성 콩 품종의 조기육성 및 습해 경감기술 개발을 위한 기초자료를 제공하고자 수행하였던 바, 그 결과를 요약하면 다음과 같다. 1. 엽 질소농도는 2003년과 204년 모두 대조구에 비해 과습구가 유의적으로 감소하였는데, 그 감소정도는 장엽콩이 가장 컸고 풍산나물콩과 무한콩이 적었다. 이는 과습처리후 풍산나물콩과 무한콩의 뿌리와 근류의 회복력이 빨라 질소흡수가 상대적으로 많아졌기 때문인 것으로 판단됨. 2. 대조구 SPAD 값에 대한 과습구 SPAD 값의 백분율로 나타낸 잎의 녹색도는 $V_5$와 $R_2$ stage 과습처리 시 모두 과습처리 종료 21일 후에는 풍산나물콩과 무한콩의 녹색도가 66~74%로 회복력이 높았으나, 장엽콩, 명주나 물콩 및 Peking은 40% 이하로 회복되지 못했다. 3. 엽병의 ureide 함량은 2003년과 2004년 모두 처리시기에 상관없이 대조구에 비해 47~64% 정도 감소하였는데, 그 감소정도는 풍산나물콩과 무한콩이 적었고 장엽콩, 명주나물콩 및 Peking이 컸다. 이는 ureide 함량은 근류의 활성에 직접적인 영향을 받으므로 과습처리 후 근류의 회복력과 깊은 상관이 있는 것으로 사료됨. 4. ureide 함량과 SPAD 값과의 관계는 ureide 함량 3mmol/g 까지는 SPAD 값과 직선적인 관계가 있으나 ureide 함량 3 mmol/g 이상에서는 SPAD 값의 차이가 구분되지 않을 것으로 추정된다. 엽질소농도와 SPAD값 간에는 높은 정의 상관이 있었다. 5. 포장시험에서의 수량관련 형질 및 수량은 품종에 상관없이 $V_5$ stage보다는 $R_2$ stage의 과습처리에서 수량감소가 더 컸으며, 품종별로는 과습처리 시 풍산나물콩과 무한콩이 수량감소가 적어 습해에 강하였다. 6. 과습처리 시기와 수량관련 형질과 생리적 형질들과의 관계를 분석한 결과, $V_5$ stage 과습처리시에는 개체당 협수와 수량은 엽질소농도, SPAD값 및 엽병의 ureide함량과 정의 상관이 있었다. $R_2$ stage 과습처리 시 같은 경향을 보였으며 특히 SPAD 값은 수량과 고도로 유의한 상관을 보였다. 7. 결론적으로 습해처리 시 엽질소농도, 엽병의 ureide 및 엽색도의 변화는 내습성 콩 품종을 선발하는데 객관적인 지표가 될 수 있는 것으로 판단됨. Soybean is the most promising crop for substituting rice on the paddy field. Excessive water stress is a common limiting factor in soybean yield under paddy soil condition. This study was carried out to identify changes in leaf total nitrogen and petiole ureide content under excess water conditions for establishing a screening system related to waterlogging tolerance. Waterlogging treatment was conducted by maintaining the water level on the soil surface for 10 days at the early vegetative growth stage ($V_5$) and the flowering stage ($R_2$). Leaf total nitrogen content, SPAD value and ureide content in petiole decreased in all soybean varieties in response to waterlogging, but the degree of decrease was much lesser in Pungsannamulkong and Muhankong than in Jangyeobkong and Myungjunamulkong, at 21 days after waterlogging treatment. This result means that root and nodule recovery rates were much higher in Pungsannamulkong and Muhankong than in Jangyeobkong and Myungjunamulkong after waterlogging treatment. The ureide and leaf nitrogen content showed high positive correlation with SPAD value, regardless of waterlogged stages. In conclusion, leaf nitrogen content, ureide content in petiole and leaf greenness were identified as promising indicator for screening soybeans which are tolerant of excess water.
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Claims 13
Claim · model-written summary
Waterlogging decreased leaf nitrogen, SPAD value and petiole ureide content in all soybean varieties.
- Taxon
- soybean
Glycine maxe1 - Treatment
- waterlogginge1
- Outcome
- Leaf total nitrogen content, SPAD value and ureide content in petiolee1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Leaf total nitrogen content, SPAD value and ureide content in petiole decreased in all soybean varieties in response to waterlogging”
Claim · model-written summary
The decrease in leaf N, SPAD and ureide under waterlogging was smaller in Pungsannamulkong and Muhankong than in Jangyeobkong and Myungjunamulkong at 21 days.
- Taxon
- SoybeanGlycine maxt0
- Material
- Pungsannamulkong and Muhankonge2
- Treatment
- waterlogginge2
- Outcome
- degree of decreasee2
- Direction
- much lessere2
- Qualifier
- at 21 days after waterlogging treatmente2
- Comparator
- Jangyeobkong and Myungjunamulkonge2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“the degree of decrease was much lesser in Pungsannamulkong and Muhankong than in Jangyeobkong and Myungjunamulkong, at 21 days after waterlogging treatment”
t0“Changes of Leaf Nitrogen and Petiole Ureide Content in Soybean [Glycine max (L.) Merrill] under Waterlogging Condition”
Claim · model-written summary
Root and nodule recovery after waterlogging was higher in Pungsannamulkong and Muhankong than in Jangyeobkong and Myungjunamulkong.
- Taxon
- SoybeanGlycine maxt0
- Material
- Pungsannamulkong and Muhankonge3
- Treatment
- waterlogginge3
- Outcome
- root and nodule recovery ratese3
- Direction
- much highere3
- Comparator
- Jangyeobkong and Myungjunamulkonge3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“root and nodule recovery rates were much higher in Pungsannamulkong and Muhankong than in Jangyeobkong and Myungjunamulkong after waterlogging treatment”
t0“Changes of Leaf Nitrogen and Petiole Ureide Content in Soybean [Glycine max (L.) Merrill] under Waterlogging Condition”
Claim · model-written summary
Ureide and leaf nitrogen content were highly positively correlated with SPAD value, regardless of waterlogged stage.
- Taxon
- SoybeanGlycine maxt0
- Compound
- ureidee4
- Outcome
- correlation with SPAD valuee4
- Direction
- high positivee4
- Qualifier
- regardless of waterlogged stagese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The ureide and leaf nitrogen content showed high positive correlation with SPAD value, regardless of waterlogged stages”
t0“Changes of Leaf Nitrogen and Petiole Ureide Content in Soybean [Glycine max (L.) Merrill] under Waterlogging Condition”
Claim · model-written summary
Leaf nitrogen, petiole ureide and leaf greenness are promising indicators for screening waterlogging-tolerant soybeans.
- Taxon
- soybeansGlycine maxe5
- Outcome
- promising indicator for screening soybeans which are tolerant of excess watere5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“In conclusion, leaf nitrogen content, ureide content in petiole and leaf greenness were identified as promising indicator for screening soybeans which are tolerant of excess water”
Claim · model-written summary
Under waterlogging at V5 and R2, leaf greenness recovered to 66-74% in Pungsannamulkong and Muhankong but not above 40% in the other varieties.
- Taxon
- SoybeanGlycine maxt0
- Material
- 풍산나물콩과 무한콩e0
- Treatment
- $V_5$와 $R_2$ stage 과습처리 시e0
- Outcome
- 녹색도e0
- Direction
- 높았으나e0
- Value
- 66~74%e0
- Comparator
- 장엽콩, 명주나 물콩 및 Pekinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“$V_5$와 $R_2$ stage 과습처리 시 모두 과습처리 종료 21일 후에는 풍산나물콩과 무한콩의 녹색도가 66~74%로 회복력이 높았으나”
e1“장엽콩, 명주나 물콩 및 Peking은 40% 이하로 회복되지 못했다”
t0“Changes of Leaf Nitrogen and Petiole Ureide Content in Soybean [Glycine max (L.) Merrill] under Waterlogging Condition”
Claim · model-written summary
Under waterlogging, petiole ureide content decreased by 47-64% compared with the control, regardless of treatment timing.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- 처리시기e2
- Outcome
- ureide 함량e2
- Direction
- 감소하였는데e2
- Value
- 47~64%e2
- Comparator
- 대조구e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“엽병의 ureide 함량은 2003년과 2004년 모두 처리시기에 상관없이 대조구에 비해 47~64% 정도 감소하였는데”
t0“Changes of Leaf Nitrogen and Petiole Ureide Content in Soybean [Glycine max (L.) Merrill] under Waterlogging Condition”
Claim · model-written summary
The petiole ureide decrease was smaller in Pungsannamulkong and Muhankong than in Jangyeobkong, Myungjunamulkong and Peking.
- Taxon
- SoybeanGlycine maxt0
- Material
- 풍산나물콩과 무한콩e3
- Treatment
- Waterloggingt0
- Outcome
- 감소정도e3
- Direction
- 적었고e3
- Comparator
- 장엽콩, 명주나물콩 및 Pekinge3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“그 감소정도는 풍산나물콩과 무한콩이 적었고 장엽콩, 명주나물콩 및 Peking이 컸다”
t0“Changes of Leaf Nitrogen and Petiole Ureide Content in Soybean [Glycine max (L.) Merrill] under Waterlogging Condition”
Claim · model-written summary
Ureide content had a linear relation with SPAD value up to 3 mmol/g; above 3 mmol/g the SPAD differences are estimated not to be distinguishable.
- Taxon
- SoybeanGlycine maxt0
- Compound
- ureidee4
- Outcome
- SPAD 값e4
- Direction
- 직선적인 관계e4
- Qualifier
- ureide 함량 3 mmol/g 이상e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“ureide 함량 3mmol/g 까지는 SPAD 값과 직선적인 관계가 있으나”
e5“ureide 함량 3 mmol/g 이상에서는 SPAD 값의 차이가 구분되지 않을 것으로 추정된다”
t0“Changes of Leaf Nitrogen and Petiole Ureide Content in Soybean [Glycine max (L.) Merrill] under Waterlogging Condition”
Claim · model-written summary
In the field, yield reduction under waterlogging was larger at R2 than at V5 for yield components and yield, regardless of cultivar.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- $R_2$ stage의 과습처리e6
- Outcome
- 수량감소e6
- Direction
- 더 컸으며e6
- Comparator
- $V_5$ stagee6
- Setting
- 포장시험e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“포장시험에서의 수량관련 형질 및 수량은 품종에 상관없이 $V_5$ stage보다는 $R_2$ stage의 과습처리에서 수량감소가 더 컸으며”
t0“Changes of Leaf Nitrogen and Petiole Ureide Content in Soybean [Glycine max (L.) Merrill] under Waterlogging Condition”
Claim · model-written summary
Pungsannamulkong and Muhankong had smaller yield reduction under waterlogging, so they were tolerant to waterlogging.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“풍산나물콩과 무한콩이 수량감소가 적어 습해에 강하였다”
t0“Changes of Leaf Nitrogen and Petiole Ureide Content in Soybean [Glycine max (L.) Merrill] under Waterlogging Condition”
Claim · model-written summary
Under waterlogging at V5, pods per plant and yield were positively correlated with leaf N, SPAD value and petiole ureide content.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- $V_5$ stage 과습처리시에는e0
- Compound
- ureide함량e0
- Outcome
- 개체당 협수와 수량e0
- Direction
- 정의 상관e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“$V_5$ stage 과습처리시에는 개체당 협수와 수량은 엽질소농도, SPAD값 및 엽병의 ureide함량과 정의 상관이 있었다”
t0“Changes of Leaf Nitrogen and Petiole Ureide Content in Soybean [Glycine max (L.) Merrill] under Waterlogging Condition”
Claim · model-written summary
SPAD value was highly significantly correlated with yield under waterlogging at R2 and V5.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- $R_2$ stage 과습처리 시e0
- Outcome
- 수량e0
- Direction
- 고도로 유의한 상관e0
- Qualifier
- SPAD 값e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“$R_2$ stage 과습처리 시 같은 경향을 보였으며 특히 SPAD 값은 수량과 고도로 유의한 상관을 보였다”
t0“Changes of Leaf Nitrogen and Petiole Ureide Content in Soybean [Glycine max (L.) Merrill] under Waterlogging Condition”
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