The effects of seawater on growth of fettuce(Lactuca sativa L.), leaf perilla(perilIa frutescens var. japonica Hara), red pepper(Capsicum annuum L.) and cucumber(Cucumis sativus L.) seedlings were investigated in the glass greenhouse. These effects were studied on seedlings, and diluted seawater (1%, 5%, 10%, 20%, 50%, 100% v/v) was sprayed enough on feaves. The tested four vegetable crops have well grown up to 10% diluted seawater, but the tested vegetable crops were damaged from increasing salt levels. Of these, lettuce was provided salt-tolerant vegetable crop and red pepper was considered salt-sensitive vegetable crop. The salt tolerance of vegetable crops is different between crops and complicated because of additional detrimental effects caused by accumulated ions or specific ion toxicities in their leaves. These results show that agricultural use of seawater may be benefit crop cultivation in organic farming system as well as in conventional farming system.

This study was carried out to investigate the effect of KEM and SAF appication on contents change of fatty acids and organic acid of perilla(Perilla Frutescens Britton). Contenst of squalene in perilla leaves on control and KEM/SAF treated were 3.39 mg and 4.22 mg, respectively. Therefore the squalene quantity of KEM/SAF treated leaves was 24.2% more than that of control. A total 6 fatty acids in perilla leaves were analyzed in this study. Percentage of the saturated and unsaturated fatty acid in perilla leaves were 20 and 80%, respectively. Contents of phytosterols in perilla leaf such as campesterol and sitosterol were 2.0 and 20.0 mg, respectively. Therefore sitosterol content was 10 fold more than that of campesterol. The KEM/SAF application on perilla leaf was effective on the change of squalene or phytosterol contents. However effect of that was negligible on the change of fatty acid content.

“Neulbora” is a new leaf vegetable perilla (Perilla frutescens (L.) Britton) variety developed from a cross between Ipdeulkkae1/YCPL173 and YCPL199 at the Yeongnam Agricultural Research Institute, NICS, RDA, in 2005. Wrinkled leaf shape and purple color o

“Saebora” is a new leaf vegetable perilla (Perilla frutescens (L.) Britton) variety developed from a cross between “Ipdeulkkae1” and YCPL199 at the Yeongnam Agricultural Research Institute, NICS, RDA, in 2004. Purple backside leaf color is a very importan

“Ilyeop” (Perilla frutescens (L.) Britton), a new cultivar for leaf vegetable, was developed from a cross between Ipdeulkkae1 and YCPL187 at the National Yeongnam Agricultural Experiment Station, RDA, in 2001. For the cultivation of leaf vegetable perilla, the plants are grown with a spacing of 10 × 5 cm between rows and plants and all branches are removed to harvest uniform leaves from main stem, indicating that the amount of the next harvesting leaf is a important characteristic for the growth of the plant. “Ilyeop” grows vigorously and yields high quality leaf with higher amount of the next harvesting leaves composed with a check cultivar, “Ipdeulkkae1”. “Ilyeop” has five days of earlier seed maturity (Oct. 24) than that of “Ipdeulkkae1” under natural condition, less chance of frost damage is expected. The flowering date of “Ilyeop” is same with that of “Ipdeulkkae1” in winter cultivation with night break treatment.

“Bora” is a new perilla (Perilla frutescens (L.) Britton) cultivar developed from a cross between Ipdeulkkae1 and YCPL199 at National Yeongnam Agricultural Experiment Station, RDA, in 2001. Purple backside leaf color is one of the most important characteristics for the high quality perilla leaf. “Bora” has purple backside leaf color in all climate condition, while a check variety, Ipdeulkkae1 has too light color during summer season or in high temperature condition. “Bora” matures at October 18th and has 79 cm of the stem length, shorter than that of Ipdeulkkae1. Although leaf yield is 11% less than that of a check variety Ipdeulkkae1, the harvested leaf number of “Bora” is similar with that of Ipdeulkkae1. The cultivar is appropriable in all area of Korea for the leaf harvesting cultivation whereas it is restricted to southern part of Korea South Gyeongsang and South Jeola provinces, for the seed harvesting cultivation.

This study was conducted to determine feasibility of production system of Perilla frutescens leaf-stem by fertilizing of Sta-Green in pots. Germination rate of Perilla frutescens seeds collected in 2002 was 7%, also germination rate of seeds collected in 2003 was 62%, while germination rate of seeds collected in 2004 was above 93%. Seed germination rate of Perilla frutescens collected in 2004 were higher than seed gathering in 2002. Especially, plant growth and yield of Perilla frutescens grown in pot(The pots was filled with soil mixtures of Sta-Green and Peat Moss mixed with 40:60 ratio.) was the highest. These results indicate that leaf and stem production of Perilla frutescens can be improved by fertilizing of Sta-Green in pots.

This study was conducted to determine the efficient regeneration condition for perilla (Perilla frutescens cv. Yeupcildllggae). Leaf, cotyledon and hypocotyl explants were excised from perilla plants 10-12 days after germination and subjected to regenerat

Chungsandeulkkae is a new perilla(Perilla frutescence (L.) Britton) variety developed at National Yeongnam Agricultural Experiment Station(NYAES) in 1998. This variety, originated from the pure line selection in Hadong local strains collected in 1990. It

Volatile flavor compounds from perilla leaves were extracted and analyzed with different methods, head-space analysis (HS), simultaneous steam distillation and extraction (SDE) , and solvent extraction (SE), and to compare their efficiencies for quick analysis. Over 30 volatile compounds were isolated and 28 compounds were identified by GC/MSD. Major compound was perillaketone showing the compositions of which were 92% in SDE method, 86% in headspace analysis, and 62% in solvent extraction method. For quick evaluation of leaf flavor in perilla, it was desirable because the headspace analysis method had a shorter analyzing time and smaller sample amount than the other methods.

본 실험에서는 옥동들깨, 적자소, 청자소를 공시하여 적엽시기별로 수증기증류장치를 이용하여 정유성분을 추출하여 GC로서 분석한 결과는 다음과 같다. 1. 옥동들깨, 적자소, 청자소 정유는 주로 잎과 줄기에 함유하고 있으며, 뿌리에도 정유가 함유되어 있으나 옥동들깨와 청자소의 경우에는 함량이 적으며, 적자소의 경우 옥동들깨와 청자소에 비하여 2배 가량 많이 함유하고 있음을 확인할 수 있었다. 2. 총정유함량을 기준으로 청자소의 최적 채엽시기는 개화시인 8월 24일 적자소는 개화후인 9월 14일이었다. 3. 최적채엽시기를 perilladehyde를 기준으로 할 경우 청자소의 경우 개화시인 8월 24일이었으며, 적자소는 8월 4일로 나타났다.

들깨관련 종·속 수집 유전자원 들깨(Perilla frutescens var. japonica Hara), 자소(Perilla frutescens var. acuta Kudo), 축면자소(Perilla frutescens var. crispa Decaisne), 청자소(Perilla frutescens var. Kudo for viridis Makino), 들깨풀(Mosla punctulata Nakai), 산들깨(Mosla japonica Maxim) 및 쥐깨풀(Mosla dianthera Maxim)에 대한 잎품질 및 지방산 조성을 조사한 결과를 요약하면 아래와 같다. 1. 수집한 들깨관련 종·속 가운데 Perilla속 유전자원이 Mosla속 유전자원보다 주경엽수가 많았고 길이에서 3배 정도, 폭에서 약 5배 정도 컸었다. 2. 들깨관련 종·속 모든 수집 유전자원이 들깨보다 방향성 정도가 높아 방향성 개량육종의 교배재료로서 활용가치가 기대된다. 3. 잎의 유연성 면에서는 Perilla속 유전자원이 Mosla 속 유전자원보다 부드러웠다. 4. 종실성분함양에서 들깨에 비하여 들깨관련 수집 종·속의 기름과 단백질함량이 낮았으나 리놀렌산 함량이 높아서 공업용 또는 의약용을 위한 고리놀렌산 들깨품종개량의 교배재료로 활용가치가 기대된다. 5. 수집 Perilla속 유전자원의 불포화지방산인 리놀렌산과 기름함량, 단백질함량 그리고 포화지방산과는 부의 상관을 보였다.

들깨의 종실ㆍ엽 겸용 신품종인 '엽실들깨'를 공시하여 정식기별로 채엽회수와 채엽시기를 달리할 경우 생육특성, sink 관련형질 및 종실수량에 미치는 영향을 구명하기 위해 시험을 실시한 바 그 결과를 요약하면 다음과 같다. 1. 상품가치가 있다고 보여지는 충분히 전개된 잎을 대상으로 채엽한 결과 경장은 무채엽구에 비하여 작아지는 경향이었다. 2. 채엽이 경태, 절수, 분지수 등에는 크게 영향을 주지 않았다. 3. 채엽에 의해 sink 관련형질인 화방수, 천립중을 감소시켜 종실수량이 낮아졌으며, 채엽회수가 많을수록 채엽시기가 늦을수록 영향이 큰 경향이었다. 4. 종실ㆍ엽 겸용 들깨재배시에는 종실수량 감소가 크지 않고 채엽에 의한 소득이 증대될 수 있는 조기채엽이나 1-2회 채엽이 바람직하였다. 5. 재배목적이 종실과 엽을 동시에 생산하고자 할 경우에는 5월 10일 파종 6월 20일 정식이 가장 적기이며, 6월 10일 파종 7월 20일 정식까지는 재배가 가능할 것으로 보였다.

종실·엽 겸용 신품종인 엽실 들깨를 공시하여 정식기별 채엽방법이 몇가지 엽특성과 종실수량에 미치는 영향을 알아보기 위해서 몇가지 시험을 실시한 바 그 결과를 요약하면 다음과 같다. 1. 상품가치가 있다고 보여지는 완전 전개된 주당 총채엽수는 채엽회수가 많을수록, 그리고 채엽개시시기가 늦을수록 많았으며 정식기로는 6월 20일 > 7월 20일 > 8월 20일 순이었다. 2. 채엽에 의하여 들깨의 엽장, 엽폭이 적어지고 생엽중도 감소되었으며 채엽회수가 많을수록, 정식기가 늦어질수록 더욱 심한 경향이었다. 3. 엽면적도 채엽회수가 많고, 정식기가 늦어질수록 적어져 동화량이 크게 줄어 종실수량을 감소시키는 주원인이 되었다. 4. 조기채엽과 1∼2회 채엽은 종실수량 감소가 크지 않으므로 종실·엽 겸용 들깨 재배시에는 초기채엽이나 1∼2회 채엽이 바람직하였다. 5. 종실·엽 겸용 재배를 목적으로 할 경우 5월 10일 파종, 6월 20일 정식이 가장 적합하며, 6월 10일 파종, 7월 20일 정식까지는 재배가 가능하였다. 6. 실소득면에서는 종실보다 채소엽의 가치가 높아 무채엽보다 모든 채엽처리에서 수익성이 높았다.