• 제목/요약/키워드: comparison of cultivars

검색결과 306건 처리시간 0.028초

Comparison of NERICA and Asian rice among traits relevant to drought resistance in the field and the effects of compost

  • Fujii, Michihiko
    • 한국작물학회:학술대회논문집
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    • 한국작물학회 2017년도 9th Asian Crop Science Association conference
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    • pp.335-335
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    • 2017
  • Recently NERICA (New Rice for Africa) was developed by a crossing of African rice (Oryza glaberrima Steud.) and Asian rice (Oryza sativa L.) in West Africa, and is considered to be drought resistant, but drought resistance of NERICA and differences between Asian rice are not clarified enough. In this research, NERICA (four cultivars and two lines), Asian rice (three cultivars and sativa parent of NERICA) and African rice (glaberrima parent of NERICA) were cultivated in the field in Shizuoka University under drought and traits of each cultivar and line relevant to drought resistance, stomatal conductance by porometer, soil water content of individual depths by TDR method, SPAD values by SPAD meter and leaf thickness by micrometer, were measured and compared with dry matter production and yield. Effects of compost were also compared among sativa parent, one NERICA cultivar and two NERICA lines. Glaberrima parent showed highest top dry weight. One NERICA line, one drought resistant Asian rice cultivar and sativa parent, showed higher top dry weight and yield (ear weight) than other Asian rice cultivars and NERICA cultivars and line tested. Compost tended to increase top dry weight and yield in one of NERICA line and sativa parent. But in one NERICA cultivar and line, top dry weight and yield were not increased. In one of Asian rice, one of NERICA line and sativa parent that showed high top dry weight and yield, stomatal conductance was high. On the contrary the glaberrima parent and in other NERICA cultivars and line it was low. In sativa parent compost increased stomatal conductance but in NERICA cultivar and lines it was not. Among cultivars and lines that showed high top dry weight and yield sativa parent and one of NERICA line SPAD value and leaf thickness were high but in one of Asian rice and glaberrima parent they were low. Cultivar and line differences in yield and top dry weight among Asian rice and NERICA were significantly correlated with those in stomatal conductance ($r=0.778^{**}$ and $r=0.654^*$, respectively) and those in leaf thickness ($r=0.600^*$ and $r=0.640^*$, respectively). In Asian rice cultivars average soil water content was significantly correlated with yield ($r=0.886^*$) but in NERICA cultivars and lines it was not significant correlated (r= -0.256). Cultivar and line differences in leaf thickness were significantly correlated with SPAD value ($r=0.773^{**}$). In Asian rice cultivars it was significantly correlated ($r=0.962^{**}$), but in NERICA cultivars and lines it was not significantly correlated (r=0.559). Asian rice cultivars tended to consume soil water to increase yield but in NERICA cultivars and lines the tendency was not clear. Correlation between SPAD value and leaf thickness was different between Asian rice and NERICA cultivars and lines, and in Asian rice cultivars it was significantly correlated but in NERICA cultivars and lines it was not significant. Importance of maintaining high stomatal conductance by high leaf thickness was clarified.

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Comparison of Protein Profiles of Proso Millet (Panicum miliaceum) Seeds of Various Korean Cultivars

  • Roy, Swapan Kumar;Kwon, Soo-Jeong;Yu, Je-Hyeok;Sarker, Kabita;Cho, Seong-Woo;Moon, Young-Ja;Jung, Tae-Wook;Park, Cheol-Ho;Woo, Sun-Hee
    • 한국작물학회지
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    • 제62권1호
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    • pp.40-50
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    • 2017
  • Seed storage proteins are used as carbon and nitrogen sources for the nutritional improvement of seeds. Since the composition of proteins from the Korean cultivars of proso millet is unknown, this study was conducted to obtain a reference map of millet seed proteins and identify the functional characteristics of the identified proteins. Proteins extracted from proso millet seeds of various cultivars were investigated using proteomic techniques such as 2-D electrophoresis coupled with mass fingerprinting; 1152 (differentially expressed) protein spots were detected on the 2-D gels. Among them, 26 reproducible protein spots were analyzed using matrix-assisted laser desorption/ionization time-of-flight/time-of-flight mass spectrometry. Out of the 26 proteins, 2 proteins were upregulated in all the millet cultivars, while 13 proteins were upregulated and 11 proteins were downregulated in 2 cultivars. Abundance of most of the identified protein species associated with polysaccharide and starch metabolism, transcription, and pathogenesis was significantly enhanced, while that of other protein species involved in glycolysis, stress response, and transduction was severely reduced. Taken together, the results suggest that the differential expression of the proteins from the four millet cultivars may be cultivar-specific. By conducting a proteomic investigation of millet seeds from different cultivars, we sought to better understand the functional categorization of individual proteins on the basis of their molecular functions. We believe that the identified proteins may help in investigating genetic variations in millet cultivars.

Oxyfluorfen에 대한 내성(耐性) 및 감수성(感受性) 벼품종(品種)의 생리활성(生理活性) 기구(機構) - I. Callus, 단세포(單細胞) 및 원형질체(原形質體) 반응(反應) (Different Physiological Activity of Selected Rice Cultivars to Diphenylether Herbicide, Oxyfluorfen - I. Differential Responses of the Calli, Cells and Protoplasts)

  • 국용인;구자옥;이은경
    • 한국잡초학회지
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    • 제16권1호
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    • pp.42-53
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    • 1996
  • 400여 벼 품종(品種)과 다수의 잡초종들로 부터 oxyfluorfen에 대하여 내성(耐性) 및 감수성(感受性)으로 선발된 벼 7품종(品種)과 피를 공시하여 이들의 oxyfluorfen에 대한 유묘(幼苗), callus, 단세포(單細包) 및 원형질체(原形質體)의 반응 결과를 체계적으로 비교함으로써 내성(耐性) 및 감수성(感受性)요인의 소재와 분포현상을 파악하고저 하였다. 1. Oxyfluorfen 에 대한 기(旣) 선발 벼품종(品種) 및 피의 $I_{50}$ 검정결과는 기(旣) 선발기준과 유사하게 확인되었다. 즉 내성(耐性) 벼품종(品種)의 $I_{50}$$10^{-4}M$ 전후(前後)였고, 감수성(感受性) 벼품종(品種)과 피는 $10^{-6}M$ 전후(前後)로 유의적 차이를 보였다. 2. 내성(耐性) 및 감수성(感受性) 식물들에서 유기(誘起)한 callus에 oxyfluorfen 처리 후 callus 생장량은 내성(耐性) 벼품종(品種)들에서 감수성(感受性) 벼품종(品種)들과 피보다 많았으나 유묘검정(幼苗檢定) 경우보다 차이는 적어지는 경향이었다. 3. Oxyflurofen 처리후 현탁배양(懸濁培養)의 세포(細包) 생장율(生長率)은 내성(耐性) 벼품종(品種)들이 감수성(感受性) 벼품종(品種)인 HP1033, Weldpally와 피보다 높았다. 4. Oxyfluorfen 처리 1, 2시간 후 원형질체(原形質體)의 viability는 내성(耐性) 벼품종(品種)들이 감수성(感受性) 벼품종(品種) Weldpally와 피에서만 높았을 뿐, 그 밖의 품종(品種)들에서는 차이가 없었다. 그러나 원형질체(原形質體)의 intactness는 내성(耐性) 벼품종(品種)들이 감수성(感受性) 벼품종(品種)들과 피보다 높았다.

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Comparison and Evaluation on the Chemical Constituents of Progeny in T-DNA Inserted Rice

  • Qin, Yang;Kim, Suk-Man;An, Gyn-Heung;Sohn, Jae-Keun
    • 한국작물학회지
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    • 제53권2호
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    • pp.131-136
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    • 2008
  • With the development of diverse agricultures worldwide, biofortified rice noted for its preferable marketability and palatability plays an important role in the world's agricultural economics and rice breeding programs. In this report, several $M_5$ of T-DNA inserted lines derived from the donor cultivars, 'Hwayong' and 'Dongjin', were selected for high or low protein, high lipid and low amylose content, respectively. The coefficients and ranges of variation for the chemical constituents between $M_4$ and $M_5$ T-DNA inserted lines were evaluated in comparison with those of the donor varieties. Results indicated that T-DNA insertion might be an effective way to generate useful variations for chemical composition of rice grains which could be used for the development of biofortified rice cultivars.

배지종류, 셀크기 및 비료종류가 호접란 플러그묘 생장에 미치는 영향 (Effects of Media, Cell Sizes and Fertilizers on the Growth of Phalaenopsis Plug Plants)

  • 정용모;빈철구;김진기;진영돈;정순재;권오창
    • 생명과학회지
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    • 제9권6호
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    • pp.665-670
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    • 1999
  • The effects of media, cell sizes and fertilizers on the early growth of Phalaenopsis plug plants were investigate. The sphagnum moss was more effective than other media in pink and white color cultivars. In comparison of different plug cell size, 50 cell size was more effective then 72 and 128 cell size in pink and white cultivar. In comparison of different fertilizer, margamf K in pink, and nutrient solution II(one time drenching with NHRI standard solution for three times irrigation) in white color cultivars was more effective then others, respectively.

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나물콩 품종별 콩나물의 물리화학적 및 관능적 특성 비교 (Comparison of Physicochemical and Sensory Characteristics of Soybean Sprouts from Different Cultivars)

  • 김성수;홍희도;이진열;최희돈
    • Applied Biological Chemistry
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    • 제43권3호
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    • pp.207-212
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    • 2000
  • 국내 외산 나물콩 품종별 콩나물의 물리화학적 및 관능적 특성을 비교하였다. 백립중은 국내산이 캐나다산보다 월등히 켰으며, 장려품종이 재래품종에 비해 높게 나타났다. 또한 각 품종별 생장 수율은 백립중의 순서와 일치하였다. 수분흡수율은 초기 6시간까지 수분흡수가 급격히 일어나 종자 중량의 약 2.2배에 달하였으며 이후에는 거의 변화가 없었다. 아미노산 조성은 모든 품종에서 16종의 아미노산이 관찰되었으며, Asp, Glu, Lys 및 Arg의 함량이 총 아미노산의 50% 이상을 차지하였다. 지방산 조성은 품종에 따른 차이가 나타나지 않았으며 모든 품종에서 linoleic acid의 함량이 가장 높게 나타났다 무기질은 모든 품종에서 K와 P의 함량이 높고 Fe와 Zn의 함량이 낮게 나타났다 재배직후 배축의 압착강도는 은하가 가장 크고 준저리가 가장 작은 것으로, 자엽의 압착강도는 단엽이 가장 크고 캐나다산이 가장 작은 것으로 나타났다. 삶은 콩나물과 물에 대해 정량묘사분석한 결과 자엽의 노란정도, 자엽의 크기 등 6가지 특성에서 유의적인 차이를 나타내었다.

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자연실온 및 변온환경에서 15종류의 켄터키 블루그래스 신품종의 발아특성 및 일일발아패턴 비교 (Comparison of Germination Characteristics and Daily Seed Germination Pattern in 15 New Cultivars of Kentucky Bluegrass under Alternative and Natural Conditions at Room Temperature)

  • 김경남
    • 한국환경복원기술학회지
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    • 제17권5호
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    • pp.1-17
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    • 2014
  • Research was initiated to investigate early establishment characteristics and germination pattern of Kentucky bluegrass (KB, Poa pratensis L.) under natural room temperature and to analyze differences between alternative and natural conditions for a practical application. Fifteen cultivars of KB were evaluated in the study. Daily and cumulative germination pattern were measured and analyzed on a daily basis. Differences were observed in germination percentage, germination pattern, days to the first germination and days to 75% germination. Germination percentage was variable with cultivars at the end of study. It was 75.75 to 90.25% under natural condition. There were considerable variations in early germination characteristics and germination pattern among KB cultivars according to germination conditions. The first germination in all entries tested was initiated between 6 and 9 DAS (days after seeding) under ISTA (International Seed Testing Association) condition. But it was observed between 9 and 12 DAS under natural condition, being 3 to 5 days later as compared with ISTA condition. On the first date of a germinating process, the germination rate was 0.25% to 25.00% under ISTA condition, while 0.50% to 13.25% under natural condition. Days to the 75% germination were 15.08 to 28.80 DAS under ISTA condition and 17.78 to 28.75 DAS under natural condition. Midnight II, Excursion and Midnight were the fastest cultivars under ISTA condition, while Odyssey the fastest one under natural condition. Regardless of germination condition, the slowest cultivar was Voyager II, being over 4 weeks to 75% germination percentage. For the most cultivars, days to 75% germination under natural room temperature condition were 1 to 8 days slower than under ISTA condition. From this study information on differences in germination characteristics and pattern among cultivars would be usefully applied for KB establishment such as golf course construction. Prior to on-site seeding, a comprehensive germination test is practically recommended due to a possible decline in germination capability during domestic distribution and storage after import.

Comparison of chrysanthemum cultivars based on direct shoot regeneration rates in tissue culture

  • Han, Bong-Hee;Lee, Su-Young;Park, Byoung-Mo
    • Journal of Plant Biotechnology
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    • 제36권3호
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    • pp.275-280
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    • 2009
  • Direct shoot regeneration from leaf or internode or petiole segments was conducted in 33 cultivars of chrysanthemum. Shoot regeneration rates varied according to cultivars, culture media, and explant types. The high shoot regeneration rate of more than 70% in 15 cultivars (‘Pink Pangpang’, ‘Orange Memory’, ‘Relance’, ‘Zinba’, ‘Beakma’, ‘Innocence’, ‘Sunny Pangpang’, ‘Euro Yellow’, ‘Dublin’, ‘Boramae’, ‘Peak’, ‘Euro White’, ‘Vesuvio White’, ‘Linneker Salmon’ and ‘Pink Pride’) and 2 ones (‘Forward’ and ‘Agason’) was obtained from the segments of leaves and internodes, respectively, cultured on MS medium containing 1.0 mg-$L^{-1}$ BAP, 0.5 mg-$L^{-1}$ IAA and 30 g-$L^{-1}$ sucrose. That in 6 cultivars (‘Shuhonochikara’, ‘Hakunosen’, ‘Whitney Pangpang’, ‘Plaisir D’Amour’, ‘Grace’ and ‘Kumsu’) was observed from the segments of leaves or internodes cultured on 1/2 MS medium 1.0 mg-$L^{-1}$ BAP, 0.5 mg-$L^{-1}$ IAA and 15 g-$L^{-1}$ sucrose In case of 3 cultivars (‘Ilweol’, ‘Puma White’ and ‘Sharon’), when internode explants excised from mother plants, which were pre-cultured on MS medium containing 2 g-$L^{-1}$ activated charcoal and 30 g-$L^{-1}$ sucrose for two months in the dark, and cultured on MS medium containing 1.0 mg-$L^{-1}$ BAP, 0.5 mg-$L^{-1}$ IAA and 30 g-$L^{-1}$ sucrose, that was shown. Seven cultivars including ‘Puma Yellow’, ‘Argus’, ‘Yes Morning’, ‘Whiparam’, ‘Hakunohikari’, ‘Charming Eye’ and ‘Moon light’ requires more improved culture conditions. Tissues with the highest shoot regeneration rate were in descending order, leaf, petiole, and internode segments.

질소시비량에 따른 벼 생리생태적 특성 연구 (Physiological and Ecological Comparison of Rice Cultivars Grown in Low Fertilized Condition)

  • 구홍모;유오종;박종현
    • 현장농수산연구지
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    • 제20권1호
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    • pp.175-185
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    • 2018
  • 개체군생장율(CGR)은 유수형성기와 출수기 사이에 가장 높았는데, 주남벼, 낙동벼, 소비벼 등이 높았으며, 이삭의 등숙속도는 시비량이 증가할수록 증가하였고, 출수 후 20일까지 가장 많이 증가하고, 그 이후에는 점차 감소하는 경향이었는데, 주남벼, 소비벼에서 빨랐다. 관행재배에서 수량이 높은 품종은 소비재배에서도 수량이 높았으며, 소비재배시 수량에 가장 많은 영향을 미치는 수량구성요소는 단위면적당 영화수로, 고도의 정의 상관관계를 나타냈다. 또한 백미품위는 시비량이 증가할수록 감소하였는데, 소비벼의 품위가 가장 낮았으며, 사미와 분상 질립의 증가가 원인이었다.