• Title/Summary/Keyword: Flowering habit

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Breeding of Lilium × formolonga F1 hybrid 'Eorayeon 1ho' for Cut Flower (절화용 신나팔나리 F1품종 '어라연 1호' 육성)

  • Xuan, Yonghao;Kim, Jong Hwa
    • FLOWER RESEARCH JOURNAL
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    • v.17 no.4
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    • pp.324-327
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    • 2009
  • The white flowered 'Eorayeon 1ho' is the first Kangwon National University cultivar of L. ${\times}$ formolonga, commonly known as seed propagating lily. Crosses were conducted from 1999 to 2003 among the selected selfing lines($S_3$) of L. longiflorum 'Lorina', L. ${\times}$ formolonga 'Augusta' and 'Raizan Herald'. A new cultivar was preliminarily selected as 'E-No.1' in 2003 for its stable upward flowering habit. The evaluation of characteristics was investigated from 2003 to 2004 in Chuncheon and Yungweol, Kangwon province. 'Eorayeon 1ho' blooms in early July at outside, with high resistance to Botrytis and having upward flowering habit. The plant height is 112.4 cm and the percentage of seed germination is 96.4%. This seed propagating cultivar shows good quality as a cut flower and low blasting rate.

Flowering and Pod Setting Characteristics of Cassia tora L. Grown under Different Planting Time (파종기이동에 따른 결명(Cassia tora L.)의 개화의 결협특성)

  • Kwang-Ho Kim
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.34 no.3
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    • pp.246-251
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    • 1989
  • A medicinal legume crop, Cassia tora L., was grown with four different seeding dates in 1986 field condition to find the flowering and pod setting characteristics. Initial flowering date and flowering duration were almost same between plants sown from April 20 to May 30, but those of plants seeded at June 20 were significantly delayed and shortened. Last flowering date, however, was not different between plants sown from April 20 to June 20. C. tora plants showed indeterminate flowering habit, and bloomed vigorously from fourth date after initial flowering. Numbers of flowers, ovules and pods per plant were decreased along with delaying seeding date, and ovule to flower ratio and pod to flower ratio were greatly decreased in June 20 seeding plot. Flowers bloomed on second week from initial flowering showed the highest number of ovules and pods, and flowers bloomed after early September did not develop to matured pods. Maximum values of pod length, number of seeds per pod and 1000-grain weight were obtained from flowers bloomed on second week from initial flowering of plants sown from April 20 to May 30, and first week in June 20 seeding plot.

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Studies on the Flowering and Maturity in Sesame(Sesamum indicum L.) V. Changes of Grain Weight and Germinability by Maturity in Different Plant Types (참깨 개화, 등숙에 관한 연구 V. 참깨의 등숙에 따른 초형별 종실중 및 발아력의 변화)

  • Kang, Chul-Whan;Lee, Jung-Il;Son, Eung-Ryong;Yoo, Chang-Yung
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.30 no.4
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    • pp.436-441
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    • 1985
  • The study was conducted to provide basic information to breeders and agronomists working with sesame. The grain weight and germinability were investigated for eight plant types classified by branching habit, capsules per axil, and carpels and loculi of a capsule. Two typical cultivars were chosen for each plant type among 527 gene pools. Dry weight of one thousand grains was increased rapidly from 25th to 35th day after flowering, and reached peak on 40th day after flowering in upper part capsules and 45th day after flowering in lower and middle part capsules, so that this period was considered to be of physiological maturity in each capsule bearing part. Side capsules on main stem and branch capsules were lighter than central ones of main stem, and upper capsules of four carpels eight loculi type decreased more seriously. BTB type demonstrated relatively better growth compared to the growth of BTQ type in one thousand grain weight. The maximum grain filling duration for germination percentage increased rapidly up to 40th day after flowering. Above 70% germinability was obtained from 40th day after flowering. Harvesting time of physiological maturity was considered to be 45th day after flowering with peaks of 2.14g of one thousand grain weight, 26% of grain water content and 90% of germinability.

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A New Hybrid, Dark Pink Spotted Type Phalaenopsis 'Pink Marble'

  • Kim, Mi-Seon;Lee, Young-Ran;Rhee, Hye-Kyung;Park, Sang-Kun;Shin, Hak-Ki;Jung, Hyang-Young;Lim, Jin-Hee
    • Horticultural Science & Technology
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    • v.29 no.5
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    • pp.503-506
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    • 2011
  • A new hybrid, Phalaenopsis 'Pink Marble' was made by the National Institute of Horticultural and Herbal Science, Rural Development Administration, in 2005. This hybrid was selected from self-crossed progenies of P. '21-1' (collected number) in 1999. In 2001, one line was selected based on the aspects such as flower color, leaf shape, flower stalk, and vigorous growth. Trials were conducted from 2003 to 2005 for evaluation and selection of this cultivar. 'Pink Marble' had a medium flowering habit and a dark pink spot (RHS, RPN74B) on white petal and sepal when fully opened. The number of flowers on each peduncle was 7.5, and flower diameter was 52.3 cm. The general impression of petals and sepals is a plate shape. The thick sepal could extend the long flowering time. The average length of leaf and peduncle were 16.5 cm and 6.8 cm, respectively. It had a half-erect leaf form, and was a fast-growing cultivar. This hybrid is relatively easy to clone.

Variation of Plant and Fruit Characteristics in Capsicum frutescens.

  • Ro, Na-young;Hur, Onsook;Lee, Jeaeun;Hwang, Aejin;Kim, Bitsam;Yi, JungYoon;Geum, Bora;Lee, Hosun;Noh, Jaejong;Rhee, Juhee
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2019.10a
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    • pp.38-38
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    • 2019
  • Among the 6500 accessions of the pepper germplasm which conserved at RDA Genebank, 319 accessions were investigated charateristics such as their growth habit, flowering and fruit shape in Capsicum frutescens. All accessions were characterized for their 14 qualitative and 16 quantitative characters. Results revealed that both qualitative and quantitative characters exhibited wide variation among the studied germplasm. The hypocotyl color, which investigated in juvenile stage, was divided in three types such as green, purple, and purple with green, and most of the accessions showed in purple. Flowering starts from 7 May, and most accessions were starting to flower from 27 May to 25 June. The fresh color of the mature pepper were red, yellow, orange, Etc. Fruit shape were mostly elongated, while exhibited ball shape and round shape were a few. The fresh weight of fruits ranged from 0.2 to 42.3, and the diameter of fruit showed from 4.2 to 45.1 mm, respectively. The phenotypic diversity exists in Capsicum frutescens. provide valuable information to improve agronomic traits in pepper breeding program.

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Effect of Seeding Date on Growth Habit and Pod Setting of Peanut in Southern Korea

  • Pae, Suk-Bok;Jung, Chan-Sik;Oh, Ki-won;Ko, Jong-Chul;Kim, Jung-Tae;Park, Chung-Berm;Kwack, Yong-Ho;Kim, Soo-Dong
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.47 no.5
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    • pp.374-378
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    • 2002
  • To evaluate growth habits, fresh pod yield potential, and possibility of early and late seeding, seeding dates were extended from March 21 to June 20 by PE mulching and non-mulching. Soil temperature, under 5cm from surface, above 15$^{\circ}C$ at 10 a.m. in early seeding reached about March 25 in mulching and April 5 to April 12 in non-mulching. Days to emergence and first flowering were accelerated owing to increasing temperature, as seeding was delayed. Days to emergence according to seeding dates reduced 21 to 8 day in mulching and 33 to 10 day in non-mulching. Days to flowering were ranged from 51 to 26 day in mulching and from 69 to 32 day in non-mulching and differences between mulching and non-mulching on each seeding date had 18 to 4 days. Early seedings till April 21 had 160-170 flowers per plant for 8 weeks, while late seedings from May 21 increased more speedily with 200 flower for 6 weeks. Harvesting of fresh peanut, at 80 days after first flowering, was possible from Aug. 1 to Oct. 7 (133-108 days to harvest) by mulching and from Aug. 19 to Oct. 12 (151 to 114 days) by non-mulching. Yields between mulching and non-mulching in early seeding until April 21 had more difference, but in late seeding after May 21 was higher and showed insignificance. Pod setting periods by early and late seeding were about 3 weeks equally. In late seeding pod setting were almost concentrated for front 15 days. In spite of difference of fresh pod weight between two seeding times, the distributions of average of seed weight showed nearly same tendency.

Studies on the Ecological Characteristics for the Plant Types in Peanut (Arachis hypogaea L.) I. Differences of Flowering Habit for the Botanical Types (땅콩의 초형별 생태적 특성에 관한 연구 -제 1 보 초형별 개화습성의 차이-)

  • Lee, J.I.;Park, Y.H.;Park, Y.K.
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.29 no.2
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    • pp.191-197
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    • 1984
  • This study was conducted to investigate the flowering habit for the botanical types of peanut (Arachis hypogaea. L) in cultural limiting region. Eight peanut varieties pertaining to virginia, Spanish, Valencia, Shinpung type were used in this study. Shinpung type, a new erect type was developed at Crop Experiment Station, ORD. Appearance of the first flower of peanut plants is observed at a relatively early growing stage. Number of days to first flower were 41 days under vinyl-mulching while non-mulching culture took 55 days. Number of days to first flower were delayed in order of Valencia, Spanish, Shinpung, Virginia type. Flowering durations were distinguished among botanical types and days of those were Virginia 85-93, Spanish 101-105, Valencia 106-113, Shinpung 82-88 days, respectively. The Spanish and Valencia types produced more flowers than Virginia and Shinpung types. The maximum flowering stage of Shinpung and Virginia types reached early and ceased by one cycle, while Spanish and Valencia types came late and showed maximum stage through the early and late stage during the growth stage. By vinyl-mulching, the maximum flowering stage was shortened by 20 days than that of non-mulching. Distribution of flowers for each of branch positions to total flowers occupied 52-53% in two cotyledonary branchs, 23-27% in 3rd to 5th branchs, 20-25% in over. 6th branchs. Shinpung type was considered more favorable botanical type than the other types for the breeding of early maturing high yielding variety because of shortening of days to first flower, flowering duration and distribution of lower branch of effective flowers.

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Initiation of Germination Characters of Plant Seed by Light Quality (광에 의한 종자의 발아특성 발현과 그 분화 및 형성에 관하여)

  • 최관삼
    • Proceedings of the Botanical Society of Korea Conference
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    • 1987.07a
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    • pp.175-190
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    • 1987
  • Germination characters of the lettuce seed that received photoperiodic pretreatments of low or high temperature from the flowering to harvest. MSU-15 seed, one of the lettuce cultivars used, having high dark germination, was modified to low dark germination by the long-day treatments during the seed formation. Light-requiring MSU-16 seed was modified to the dark-germination seed by high temperature given at the seed formation period. Above results suggest that the environmental conditions given to an immature seed adhered to a mother plant bring about some modification to its native germination habit. I confirmed that the spectral quality of light could influence the phytochrome system which controlled germination characters of the progeny of lettuce seed ; plants grown in light rich in far-red energies produced light-requiring seed, but those grown in high deficient in far-red energies produced dark germination seed.

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