• Title/Summary/Keyword: Flower cluster

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Comparison of Runner Production and Growth Characteristics among Strawberry Cultivars (딸기 품종간 런너발생 및 생육특성 비교)

  • Kim, Tae-il;Kim, Woon-Seop;Choi, Jae-Hyeon;Jang, Won-Seok;Seo, Kwan-Seok
    • Horticultural Science & Technology
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    • v.17 no.2
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    • pp.111-114
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    • 1999
  • Experiments were conducted to select the optimum cultivars which are adaptable to South Korea through estimating the differences in daughter plant production and growth response among seven strawberry cultivars. In the vegetative stage, Nyoho, Akihime and Suhong produced more daughter plants than other cultivars whereas Akaneko and Tochinomine, which developed less runners, showed better condition in runner vigorness. The quality of daughter plants derived from forcing cultivars was uniform in general. Even though there was no significant differences in rooting among cultivars, runners from Akaneko and Tochinomine developed more roots and fresh weight of roots than other cultivars. In the forcing cultivars, Akihime showed the most excellent plant vigorness, yield and highest sugar content of fruits and also was 5 days faster than Nyoho in flowering date. However, the fruit tended to be softened. In the semi-forcing cultivars, Tochinomine was excellent in vigorness, firmness, sugar content of fruits and the average of fruit weight but low in flower numbers per cluster and late in the emergency of second flower cluster. Although Akaneko showed highest in sugar/acid ratio and rich in flavour, lighting treatment was recommended to this cultivar for early harvest because of softness of fruits.

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Management Strategies for Apolygus spinolae(Hemiptera: Miridae) in Grapevine Yards (포도원에서 애무늬고리장님노린재(Apolygus spinolae(Meyer-Dur))방제체계)

  • 김동순;조명래;전흥용;임명순;최용문
    • Korean journal of applied entomology
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    • v.41 no.1
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    • pp.67-73
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    • 2002
  • Studies were conducted to investigate the control effects of several insecticides on Apolygus(=Lygocoris) spinolae(Meyer-Dur) and to develop its management strategies in grapevine yards. Of insecticides which were applied by farmers in commercial grapevine yards, chlorpyrifos, parathion, fenvalerate, and esfenvalerate$.$fenitrothion showed good control effects against A. spinolae. In designed field experiments of fenitrothion and chlorpyrifos for the evaluation of A. spinolae control, both insecticides showed high control efficacy of 94.8 and 91.6%, respectively. The damage of A. spinolae was examined in a grapevine yard, where five different combinations of application timing and number were treated with fenitrothion to assess yield losses (average cluster weight) by A. spinolae. There were no significant differences among average cluster weights of sprayed vines; 466.0 g in sprayed vines on 2 to 3 leaves unfolded stage, 460.7g in sprayed vines on flower separating stage, 465.0 g in sprayed vines each on 2 to 3 leaves unfolded and flowers separating stage, and 487.4 g in sprayed vines each on 2 to 3 leaves unfolded, flowers separating and fruit set stage. Weights of fruit clusters of unsprayed vines was significantly lower than those of sprayed vines. Based on yield and spray cost, chemical control on 2 to 3 leaves unfolded stage produced higher net income than each spray on 2 to 3 leaves unfolded and flower separating stage (i.e., two times of spray), and produced similar net income as each spray on 2 to 3 leaves unfolded, flowers separating and fruit set stage (i.e., three times of spray). Thus, the 2 to 3 leaves unfolded stage was economical spray timing to controlA. spinolae in grapevine yards. Also, management strategies for A. spinolae were discussed.

Characteristics That Affect Japanese Consumer Preferences for Chrysanthemum (국화 수출 확대를 위한 일본 소비자의 상품 선호도 분석)

  • Lim, Jin Hee;Seo, Ji Yeon;Shim, Myung Syun
    • Horticultural Science & Technology
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    • v.31 no.5
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    • pp.640-647
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    • 2013
  • This study was conducted to provide exportation strategy by surveying on preference of Japanese consumers on cut chrysanthemum exported. The survey was conducted two times by a local survey company in Japan, and the surveys were conducted largely on chrysanthemums for casual flowers and the altar. After departmentalizing Japanese consumers per groups the result were analyzed through conjoint and cluster methods, flower colors and shape were used relatively higher rate for selection criteria of flowers in every group in the case of casual flowers. Group 1 comprised of 60 year-old housewives who reside in a small city with high school diploma and annual income less than 300 million yen, and group 2 of 40 year-old housewives who are small city residents with high school diplomas and annual income of 300 million yen show higher rate of use in flower shape than colors. Another group 3 whose members are 50 year-old housewives, small city residents with high school diplomas and annual income of 600 million yen showed higher rate of use colors than the shape for selection criteria of flowers. The consumption characteristics according to the ages of the consumers showed a pronounced tendency. The 40-50 year-old housewives preferred single flowers packed with other flowers, and the 60 year-old housewives double flowers packed with only chrysanthemums. In flower color, the 50-60 year-old housewives preferred white and yellow flowers, and the 40 year-old housewives pink and yellow flowers. Therefore, there are needs for development strategy of new products considering the consumption characteristics of flower shape and color according to the ages of consumer. After analyzing the chrysanthemums for altar by departmentalization of Japanese consumers, every group showed relative higher rate of use for flower shape for selection criteria of flowers. According to the analysis on the consumption characteristics, group 1 which is comprised of 30-40 year-old housewives who reside in small city with high school diplomas and income less than 300 million yen, and the group 2 of 20 year-old housewives who reside in small city with college diplomas and annual income less than 300 million yen. They are very sensitive to the price of the products while the group 3 of 50 year-old housewives who reside in small city with high school diplomas and annual income less than 300 million yen are insensitive to the price. The 30-50 year-old housewives preferred white and pink flowers, and the 20 year-old housewives yellow and pink flowers. In flower shape, the 50 year-old housewives preferred anemone shape, the 30-40 year-old housewives double shape, and the 20 year-old housewives pompon shapes. Therefore, the white, double flowers for the 30-40 year-old housewives and the yellow, pompon flowers for the 20 year-old housewives are needed to be created at the lowest cost, while the white, anemone flowers are needed to created at higher cost with high quality. In light of these results, it is considered that we should understand the types of purchasing products through consumption characteristics of Japanese consumers. Also we should plan, create market-oriented and consumer-oriented products, and should export them in order to expand more exportation.

Style for the Consumer's Awareness and Purchase Behavior about the Forest Product (임산물 가공품 개발을 위한 인식 및 구매 행동 조사)

  • Lee, Eun Young;Yeo, Ga Eun;Lee, Ji O;Jeon, Yoowha;Cho, Mi Sook;Oh, Ji Eun
    • The Journal of the Korea Contents Association
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    • v.20 no.11
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    • pp.77-87
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    • 2020
  • This study aims to suggest basic data for developing forest product in Jeongeup City by surveying and analyzing consumer awareness and purchasing behavior. A survey was conducted focusing on local tourist attractions in Jeongeup City, and the analysis was conducted on 234 people. Among the local specialty processed products that the survey participants had experience in purchasing, food was mainly tea, concentrate solution, liquor, snacks and fruit syrup/enzyme. The therapy was shown in order of soap, aroma oil, and lotion. It was found that the purchase cost was more than 10,000 won and less than 30,000 won. Major purchase uses were for direct use and gifts, and 56.8% of the customers were satisfied with the satisfaction of the products, which were found to be purchased because of their good quality, good gift, and good health functions. In the question of 11 kinds of forest products, the subjects were aware of bokbunja, balloon flower, wild flower, deodeok, bracken, durum, and mal, among which bokbunja and wild flower were recognized as the representative forest products of Jeongeup. A cluster of food and therapy product selection attributes was analyzed to find target consumers. As the group that is interested in forest products and values the safety and quality of products is highly recognized, the value of forest products should be increased in consideration of the quality and safety of forest products when developing products in the future.

Studies on Flowering Habit and Cross-Fertility of some local cultivars in Angelica gigas NAKAI (참當歸(Angelica gigas NAKAI 지방종의 交雜親和性에 관한 연구)

  • 권오흔;김수용;임재하;오세명
    • Korean Journal of Plant Resources
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    • v.14 no.2
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    • pp.163-168
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    • 2001
  • This study was conducted to obtain basic information on cross breeding for developing bolting resistant variety of Angelica gigas NAKAI which has been subjected to severe yield reduction resulted from flower-stalk initiation during the growth. Compatibility of selfing and/or crossing pollination among 5 local cultivars were tested. Results obtained are summarized as follows. In case of three year old plant, all cultivars emerged March 14 and bolted from May 12 to May 13. Ponghwa cultivar was flowered 3 to 5 days earlier than other cultivars. Flower duration continued 41 to 43 days. Interval of flowering date from main stem to first primary branch, from first to second or second to third primary branch was 9 to 13 days. Emergency of stamen proceeded 4~8 days of pistil initiation demonstrating that Angelica gigas NAKAI is protandrous plant. Furthermore initiation of first pistil was 1~4days later than formation of last stamen in the same flower cluster. Percent pollination of Angelica gigas NAKAI was 52% under natural condition, so called open-pollination, but bagging by enveloping flowers was as low as 0.4~2.4%. In the result of compatibility test, all local cultivars tend to show both of self-and cross-compatibility. Inpollination, ‘Muju’$\times$‘Muju’combination showed highest fertility up to 40.8% whereases cross pollination, ‘Pyeongchang’$\times$‘Inje’combination, showed 67.0% fertility.

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Study of Dried Korean Native Plants Using for Floral Clusters (건조 자생식물 종별 꽃다발 이용 가능성 검토)

  • Sohn, Kwanhwa;Kwon, Hye Jin
    • FLOWER RESEARCH JOURNAL
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    • v.16 no.4
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    • pp.266-274
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    • 2008
  • Korean native plants were investigated for their suitability to be used for floral clusters after drying. Floral clusters which were made in semi-sphere with a hand-tied method and can be fit in $22{\times}22{\times}37cm$ paper boxes were made with 37 species. Among 37 species, the 14 species which were easy to dry, to make floral clusters, and have not been used in other countries, were Echinochloa crus-galli var. frumentacea, Imperata cylindrica var. koenigii, Muhlenbergia huegelii, Phleum pratense, Setaria glauca, and Setaria viridis in Gramineae, Artemisia capillaris, Artemisia montana, and Chrysanthemum indicum in Compositae, Agastache rugosa, Elsholtzia ciliata, Elsholtzia splendens in Labiatae, Carex neurocarpa in Cyperaceae, and Vitex rotundifolia in Verbenaceae were used with leaves, flowers, and fruits. The suitable plants for a floral cluster in $22{\times}22{\times}37cm$ paper box, a wreath in $22{\times}22{\times}6cm$ paper box, and a flower arrangement in $22{\times}22{\times}22cm$ paper box, which were made to a set, were 10 species, that is Phragmites communis, Setaria glauca, Setaria viridis, Artemisia capillaris, Artemisia montana, Chrysanthemum indicum, Elsholtzia ciliata, Elsholtzia splendens, Mosla punctulata, and Vitex rotundifolia.

Morphological Characteristics Based on Phenotypes of Flower and Fruit in a New Variety of Anthoxylum schinifolium (산초나무(Zanthoxylum schinifolium) 신품종의 꽃과 열매에 기반한 형태적 특성 분석)

  • An, Mi Yun;Song, Hyun Jin;Kim, Ki Yoon;Lee, Ro Young;Yang, Byeong Hoon;Han, Chi Beok
    • Korean Journal of Plant Resources
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    • v.35 no.4
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    • pp.464-470
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    • 2022
  • In this study, the morphological characteristics of flower and fruit in five varieties (Hancho 915ho, 930ho, 10ho, 1020ho, 1030ho) from Zanthoxylum schinifolium were investigated as new varieties with different fruiting seasons. Qualitative and quantitative characteristics were investigated, spectively. For quantitative characteristics can be measured numerically, such as size and number, the varieties were identified using ANOVA and Scheffe's multiple range test. In addition, the validity of whether the quantitative characteristics of five varieties can be explained by factor analysis was reviewed. Using UPGMA, the relationship between the five varieties was confirmed by dendrogram. As a result of ANOVA and Scheffe's multiple range test there was significant difference in inflorescence width and female flower length. It had a high contribution to distinguishing varieties, which was similar to the PCA results using factor analysis. As a result of dendrogram using cluster analysis, Hancho 915ho, 1020ho and 1030ho were similar, but there was a distinct difference in the characteristics of different flowering and fruiting periods, confirming that they were different varieties.

Comparison of the morphology and distribution of the genus Megaleranthis Ohwi with those of its relative genera (Ranunculaceae) (모데미풀속과 근연속들의 형태 및 분포 비교 (미나리아재비과))

  • Son, Dong Chan;Cho, Kyung Jin;Ko, Sung Chul
    • Korean Journal of Plant Taxonomy
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    • v.41 no.4
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    • pp.315-323
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    • 2011
  • To elucidate the taxonomic status of the genus Megaleranthis Ohwi, a monotype in Korea, its distribution and morphological characteristics were studied and a cluster analysis was performed. The cluster analysis showed that Megaleranthis was separately clustered from Trollius and Calathodes. Megaleranthis is morphologically different from Calathodes Hook.f. et Thomson in having petals, and from Trollius L. in having an involucre instead of a caulescent leaf under the flower and follicles with simple veins. The three genera above are distributed independently within Asia, although they can be found together at the boundaries where their distributions overlap: Trollius and Calathodes occur together between the Sichuan and Yunnan provinces in China, and Megaleranthis and Trollius can both be found on the northern edge of the Korean Peninsula. From both a morphological and a distributional viewpoint, Megaleranthis should be recognized as an independent genus different from both Trollius and Calathodes.

Effect of Different Production Period of Nursery Plant and Age on the Yield in Different Cropping Type of Everbearing Strawberry (사계성 딸기의 자묘생산시기와 묘령의 차이가 작형별 수량에 미치는 영향)

  • Ra, Sang-Wook;Woo, In-Sik;Kim, Woon-Seop;Seo, Kwan-Seok;Yoon, Wha-Mo;Hur, Il-Bum
    • The Journal of Natural Sciences
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    • v.10 no.1
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    • pp.73-80
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    • 1998
  • This experiment was carried out to investigate the effect of runner development based on production period and to investigate the yield in different cropping type to nursery plant age. In runner development experiment, heating + lighting + $GA_3$ + cluster removal treatment increased the number of runners by 13.1 times higher in spring season than control(heating only) in overwintering mother-plant. Treatment of 20ppm $GA_3$ was the most effective for runner production in autumn. In nursery plant age experiment, 60 days old nursery plants produced more flower cluster than 40 days old ones. This result indicated that the yield potential was so low that overwintering runners would be adaptable for spring or summer cultivation.

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Variation for Morphological Characters in Cultivated and Weedy Types of Perilla frutescens Britt. Germplasm

  • Luitel, Binod Prasad;Ko, Ho-Cheol;Hur, On-Sook;Rhee, Ju-Hee;Baek, Hyung-Jin;Ryu, Kyoung-Yul;Sung, Jung-Sook
    • Korean Journal of Plant Resources
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    • v.30 no.3
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    • pp.298-310
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    • 2017
  • Morphological variation between cultivated and weedy types of Perilla frutescens var. frutescens and P. frutescens var. crispa were studied in 327 germplasm by examining 17 morphological characters. The germplasm between the two varieties were varied for their qualitative and quantitative characters. The seed coat color of cultivated P. frutescens var. frutescens is commonly light brown and brown while deep brown color was observed in the weedy type P. frutescens var. frutescens and P. frutescens var. crispa. The leaf size, cluster length, plant height, flower number per cluster and seed weight in cultivated P. frutescens var. frutescens were significantly (P<0.05) different from weedy type P. frutescens var. frutescens and P. frutescens var. crispa. The cultivated P. frutescens var. frutescens exhibited significantly higher plant height (158.6 cm) compared to the weedy P. frutescens var. crispa (133.8 cm). Likewise, seed weight was significantly higher in cultivated (1.9 g) than in the weedy type of P. frutescens var. frutescens (1.6 g) and P. frutescens var. crispa (1.4 g). Principal component analysis (PCA) result showed that the first and second principal component cumulatively explained 86.6% of the total variation. The cultivated type P. frutescens var. frutescens and its weedy accessions were not clearly separated with P. frutescens var. crispa by PCA. Hence it requires the use of molecular markers for better understanding of their genetic diversity.