• 제목/요약/키워드: Mulberry plant

검색결과 141건 처리시간 0.047초

Identification of Genetic Relationships Among Morus alba Genotypes Based on RAPD and ISSR Fingerprinting

  • Kalpana, Duraisamy;Cha, Hyo-Jung;Choi, Tae-Ki;Lee, Yang-Soo
    • 한국자원식물학회지
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    • 제24권6호
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    • pp.675-687
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    • 2011
  • Mulberries have importance in the sericulture industry as food for Bombyx mori, silkworm reared for its silk. Korean Morus alba have many cultivars and, for the protection of these cultivars and for utilization in plant-breeding programs, genetic information and the diversity among cultivars are essential. This study with 14 mulberry genotypes was undertaken using RAPD and ISSR fingerprinting to discover the genetic divergences between cultivars. Polymorphism rate among the cultivars produced by RAPD primer was found to be 64.48% and 66.29% relative to ISSR primer. The genetic relationships among the cultivars were identified using a dendrogram constructed with the UPGMA clustering method. Nei's method was used to calculate the genetic dissimilarity coefficients between each pair of genotypes, and the highest dissimilarity coefficient of 0.246 was exhibited between Suwon and Hwanggum cultivars. To determine the efficiency of each primer, a polymorphic index was calculated, and the robustness of the dendrogram was checked using cophenetic correlation coefficient. The results of this study can be utilized for the improvement of mulberry varieties in plant-breeding programs.

Efficacy of Different Seed Kernels against Root Knot Nematode Meloidogyne incognita in Mulberry

  • Chowdary, N.B.;Mukherjee, Sanchayita
    • International Journal of Industrial Entomology and Biomaterials
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    • 제6권2호
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    • pp.133-138
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    • 2003
  • Five seed kernel namely, Neem (Azadirachta indica A. Juss.), Pongamia (Pongamia glabra L. Pierre), Tamarind (Tamarindus indica L.), Mahua (Madhuca indica Gmel.) and Shikakai (Acacia cancinna De.) were tested against hatching of eggs and larval mortality of Meloidogyne incognita causing root knot disease in mulberry along with Furadan (Carbofuran) and Bionema (a bioformulation developed from Verticillium chlamydosporium) for comparison. Results revealed that highest hush-up of hatching was observed in Neem (77.40%) and Pongamia (75.99%) seed kernel extracts at 100% concentration over the check. Similarly, highest larval mortality was observed in Neem and Pongamia by 76.00% and 74.50%, respectively at 100% concentration after 72 hrs of exposure period. Pot culture studies revealed that pre-application of seed kernel powders (20 days before inoculation of nematode) found to be more effective in controlling the root knot disease than post application. In pre application of seed kernel powders, maximum reduction of root knots was observed in case of Neem seed kernel powder (54.85%) followed by Pongamia (51.9%). Similar trend was also observed in reduction of egg masses/plant and nematode population /250 cc soil. Rest of the seed kernel extracts was found to be less effective in suppression of hatching, enhancing the larval mortality and controlling the root knot disease. However, application of Furadan and Bionema tested for the comparison were found to be more effective than seed kernel powders. The generated information seems to be useful in developing an ecofriendly integrated approach for the control of root knot nematode disease in mulberry.

뽕나무 재배기간 중 기상환경과 눈마름병 발생관계 분석 (Analysis of the Cause of the Twig Blight on Mulberry Based on the Weather Conditions)

  • 김주희;최인영;김주;이장호
    • 식물병연구
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    • 제23권3호
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    • pp.283-287
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    • 2017
  • Fusarium lateritium에 의해 발생하는 뽕나무 눈마름병이 전북지역 뽕나무 주산지인 부안지역을 중심으로 발생하였다. 눈마름병이 걸린 가지는 병반 중심부가 약간 오목한 상태의 둥근타원형의 병반을 형성하며 병반 위에 주황색 작은 입자들이 밀생하였다. 뽕나무 가지 위에 병반이 형성된 위쪽으로는 눈이 검게 변하고 말라서 눈이 틔지 않고 말라 죽거나 생육을 약화시키고 심한 경우 결과지가 검게 변하고 말라서 수량 감소를 초래하기도 한다. 뽕나무 눈마름병은 연차 간 발생정도 차이가 심하여 2013년도 전라북도에서 평균적으로 3.2% 발생을 하였으나 2014년도에는 발생한 포장을 찾기가 어려울 정도로 발생이 없었다. 발생차이의 원인을 찾기 위해 재배 중 기상조건을 조사분석한 결과 봄철의 온도가 낮거나 겨울철 영하이하로 경과하는 일수가 증가하는 조건에서 병 발생이 증가하고, 수확하고 난 결과지를 제거한 후에 강우량이 많고 일조시수가 낮은 조건이 경과할 경우 이듬해 발생이 증가하는 것으로 분석되었다. 그러므로 눈마름병이 다발생 할 수 있는 조건이 경과되었을 때는 적용 약제를 예방적으로 살포하여 피해를 최소화하여야 할 것이다.

형광현미경적 기법에 의한 대추나무, 뽕나무 및 일일초의 마이코플라스마 감염진단 (Fluorescence Microscopic Diagnosis of Mycoplasma Infections in Jujube, Mulberry and Periwinckle Plants)

  • 박원철;나용준
    • 한국식물병리학회지
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    • 제1권1호
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    • pp.12-16
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    • 1985
  • 마이코플라스마에 감염된 대추나무, 뽕나무 및 일일초의 조직절편을 형광염색소인 DAPI(4'-6-diamidino-2-phenylindole$\cdot$2HCl), aniline blue 그리고 quinacrine(quinacrine mustard dihydrochloride)으로 염색하여 형광현미경하에서 관찰함으로서 이들 형광염색소의 마이코프라스마 감염진단에의 효용가치를 비교 조사하였다. 이병식물의 줄기절편의 절부에서 특이형광반응이 나타났으나 건전식물의 조직절편에서는 특이형광반응이 관찰되지 않음으로써, DAPI, anilinc blue 및 quinacrine 등의 형광염색소에 의한 조직염색법은 대추나무, 뽕나무 및 일일초의 마이코플라스마 감염을 식속 정확하게 진단하는 데 매우 유용한 방법임을 보여주었다. 한펀, 이들 형광염색소 중에서는 DAPI가 가장 효과적이었다.

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뽕잎 추출물의 돌연변이 억제효과 (Antimutagenic Effect of Mulberry Leaf Extract)

  • 임범혁;박창균;조현기;임흥빈
    • 한국약용작물학회지
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    • 제25권4호
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    • pp.201-208
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    • 2017
  • Background: The present study was carried out to asses whether mulberry leaves (MLs) have the potential to inhibit the mutagenic effect of cigarette smoke condensates (CSCs). Methods and Results: ML powder was extracted with 70% ethanol, and a yield of 35.1% by weight was obtained. The 70% ethanol extract of ML was further extracted sequentially using diethyl ether, chloroform, butanol, dichloromethane and water. The crude 70% ethanol extract of MLs and its solvent fractions did not show any mutagenic effect when tested at concentrations up to 1 mg/plate against Salmonella typhimurium TA98. In contrast, the crude 70% ethanol extract showed an inhibitory activity against the mutagenicity of CSCs in the presence of S-9 mixture. Among the solvent fractions, the diethyl ether fraction showed the highest inhibitory activity, which increased in a dose-dependent manner, inhibiting mutagenesis by approximately 97.1% at a concentration of 1 mg/plate. Conclusions: In this study, we found that a crude 70% ethanol extract of MLs and the diethyl ether fraction themselves are potentially not mutagenic, but inhibit the mutagenic effect of CSCs.

Streptozotocin으로 유발된 당뇨쥐의 신진대사 증진에 대한 부안 오디의 효과 (Effect of Buan Mulberry on Metabolic Improvement in Streptozotocin-Induced Diabetic Rats)

  • 이주택;류재성;곽동훈;박윤점;강성선;김병준;황경아;추영국
    • 생명과학회지
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    • 제20권12호
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    • pp.1750-1757
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    • 2010
  • 본 연구에서는 streptozotocin (STZ)에 의해 유도된 당뇨병 흰쥐를 이용하여 부안산 오디의 항 당뇨효과를 in vivo 실험을 중심으로 조사하였다. 기존의 연구는 주로 in vitro 실험을 통해 이루어 졌으며 일부 지역의 오디는 STZ에 의해 유도된 당뇨병 흰쥐에서 신진대사 증진, 항산화 및 체내 지방 저하 효과가 있음이 시사 되어졌다. 먼저, Sprague-Dawley 수컷 흰쥐를 난괴법을 통해 하나의 정상군(Normal)과 대조군(Diabetic), 인슐린 처리군(Insulin), 0.5% 오디 투여군(0.5% Mulberry), 1.0% 오디 투여군(1.0% Mulberry) 그리고 2.0% 오디 투여군(2.0% Mulberry) 등으로 분류 한 후 STZ로 당뇨병을 유도하였다. 부안산 오디를 STZ에 의한 당뇨병 흰쥐에 4주간 투여한 후 정상군과 비교 했을때 다양한 농도의 오디를 투여한 그룹에서 몸무게, 혈중 인슐린의 농도는 감소했지만, 신장무게, 혈당량, 요량 및 음수량은 증가하였다. 추가적으로 STZ에 의한 당뇨병 흰쥐와 이들 동물들에게 오디를 투여한 그룹을 비교한 결과 오디를 투여한 그룹은 신장 무게, 혈당, 요량 및 음수량이 확연히 감소하였다. 또한 오디를 투여한 그룹에서의 인슐린 농도는 대조군과 비교하여 유의적으로 증가하였다. 이와 같은 연구결과로부터 부안산 오디는 향후 당뇨 합병증을 억제하기 위한 기능성 식품의 원료로 사용 되어질 가능성을 시사한다.

Yield Loss in Mulberry Due to Sucking Pest Whitefly, Dialeuropora decempuncta Quaintance and Baker (Homoptera: Aleyrodidae)

  • Bandyopadhyay, U.K.;Kumar, M.V.Santha;Das, K.K.;Saratchandra, B.
    • International Journal of Industrial Entomology and Biomaterials
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    • 제2권1호
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    • pp.75-78
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    • 2001
  • The whitefly, Dialeuropora decempuncta Quaintance and Baker (Homoptera : Aleyrodidae) causing considerable damage to mulberry, Morus alba. Crop loss caused by the whitefly was estimated in mulberry. Quantitative yield loss was estimated on the basis of harvest data from both sprayed and unsprayed plots. Data on pest incidence has been recorded at weekly intervals in both sprayed and unsprayed plots from 30 th day of plant age till harvesting i.e., 60 days after pruning in August October season. An attempt has been made to establish a relationship between whitefly population and percentage of crop loss due to it. Percentage of crop loss due to whitefly has got a linear relationship with the whitefly population. An initial population of 24 adults/top leaf would be able to cause 24% loss (l,630 Kg leaf/ha ) in a period of 30 days. Economic analysis postulates that application of pesticide can stove a net amount of 1,630 Kg leaf/ha which is sufficient to produce 67.65 Kg of additional multivoltine cocoons. This determines the cost/benefit ratio which will enable to workout the economics of management practices.

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Growth and Foliar Constituents of Mulberry ($M_5$) Cultivated under Organic Based Nutrient Management

  • Rashmi, Krishnegowda;Shankar, Maruvanahalli Ankegowda;Shashidhar, Kaluvarahalli Ramanna;Narayanaswamy, Talagavara Kempaiah
    • International Journal of Industrial Entomology and Biomaterials
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    • 제19권1호
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    • pp.165-169
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    • 2009
  • A field experiment to evaluate the effect of application of different organic manures and inorganic fertilizers on growth, yield and quality of leaf was studied during 2004-05 has showed that, the application of 10 kg each of Azospirillum brasilense and Aspergillus awamori+20% each of recommended N through compost+green manure (Glyricidia maculata)+castor cake+vermicompost+Urea and remaining P and K through fertilizers ($T_{11}$) has recorded significantly higher leaf yield (250 g/ plant and 34.70 tonnes/ha/yr, respectively) with improvement in growth characters as compared to control. Leaf quality status was also improved in terms of N (3.19%), P (1.97%), K (1.28%), total soluble protein (8.39 mg/ml), total soluble sugars (14.40 mg/ml), secondary nutrients viz., Ca (3.00%), Mg (0.60%), S (0.35%) and micronutrients viz., Cu (0.410 ppm), Mn (0.454 ppm) and Zn (0.112 ppm) contents. The mulberry grown with 20 tonnes of compost+300:120:120 Kg of NPK/ha/year through fertilizer ranked second for growth and foliar constituents.