• Title/Summary/Keyword: 생장촉진제

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Growth Regulators in Agriculture (농업에서의 식물생장 조절제들)

  • 이영병
    • Journal of Life Science
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    • v.3 no.1
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    • pp.2-8
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    • 1993
  • 천연화합물과 합성화합물은 모두 합쳐서 식물생장조절제라 부르고 이들 화합물은 경우에 따라 식물의 기간들의 생장율을 촉진하거나 억제한다. 호르몬이란 용어는 천연적으로 발생하는 색물생장 조절제에 국한되는 것이다. 실제의 응용에 있어서 합성된 생장조절제가 사용되는 것은 이 물질이 생체내에서 안정도가 더 크기 때문이다. 따라서, 합성물질은 식물 호르몬의 구조적인 유사성으로 흉내를 내거나 내생 호르몬들의 생합성, 전류, 및 대사를 조정해서 그 수준을 조절하게 된다. 그래서, 식물생장 조절물질들의 기능과 가능력을 이해하기 위해서 분자수준에서 식물호르몬들의 작용의 양상을 고찰한다.

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Seed Germination Improvement by Pon-Pon Treatment and Asexual Multiplication by Cuttings in Zanthoxylum piperitum (초피나무에 있어서 Pon-Pon 처리(處理)에 의(依)한 종자(種子) 발아촉진(發芽促進)과 삽목(揷木)에 의(依)한 무성번식(無性繁殖) 개선(改善))

  • Goo, Gwan Hyo;Youn, Ki Sik;Choi, Jai Sik
    • Journal of Korean Society of Forest Science
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    • v.82 no.3
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    • pp.227-234
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    • 1993
  • This study was carried out to seek for a most effective hastening method of seed germination by Pon-Pon treatment and asexual multiplication method by cutting in Zanthozylum piperitum. The results obtained in this study were as follows : 1. Cold moist stratification under the ground accompanied with Pon-Pon treatment was shown 74.3% of seed germination, which was the most effective one among pretreatment methods with significance at 1% level. 2. Height growth was shown continuous growth pattern and the maximum growth was shown during the period 1 July to 31 July, which corresponds 40.3% of total annual growth. 3. Although no noticeable difference among the kind of plant growth regulator in the rooting rate, there was difference among concentrations with significance at 1% level. 4. In the case of number of primary roots and T/R rate of rooted cuttings, treatment of plant growth regulators was significantly superior to control. 5. T/R rate in rooted cuttings was a high negative correlation (r=-0.7164) with the number of primary roots.

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Promotive Effects of Geraniol on Radicle Growth of Several Vegetables and Leaf Growth of Brassica campestris (Geraniol의 채소 작물 유근생장 및 배추 생장 촉진효과)

  • Choi, Geun-Hyoung;Jeong, Dong-Kyu;Park, Byung-Jun;Cho, Nam-Jun;Hong, Jin-Hwan;Kim, Jin-Hyo
    • The Korean Journal of Pesticide Science
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    • v.19 no.4
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    • pp.399-401
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    • 2015
  • This study investigated the plant growth promoting activity of geraniol on Chinese cabbage (Brasscia campestris ssp. Pekinensis Rupr.), Pak Choi (Brassica rapa L.), Crown daisy (Chrysanthemum coronarium L.), Iceberg lettuce (Lactuca sativa L.) and Leaf perilla (Perilla frutescens Britt.). Geraniol at 0.5 to $10mg\;L^{-1}$ promoted radical growth of Chinese cabbage Pak Choi, Crown daisy, Iceberg lettuce and leaf perilla by >30%. In the pot experiments, geraniol treatment at $20mg\;L^{-1}$ by drenching increased up to 190% of the aerial part growth promotion. By comparison, foliar application showed 124% promoting activity only at $100mg\;L^{-1}$.

Effects of Plant Growth Regulators on Growth of Rice Seedling for Machine Transplanting (식물생장조절제 처리가 벼기계이앙 어린모 생육에 미치는 영향)

  • 이주열
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.38 no.4
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    • pp.360-365
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    • 1993
  • The infant seedling of rice(8-to 10-day-old) has often suffered from submergence just after transplanting due to the too short seedling height, 5 to 8cm, This experiment was conducted to elucidate the effect of gibberellic acid($GA_3 : 25% soluble liquid) with the application methods of foliar spray and seed-soaking on the elongation of seedling height of infant rice seedling in machine transplanting, We used a japonica rice variety, Hwaseongbyeo, and the seeding rate was 200g per seed tray(30$\times60$\times3cm). Generally,$GA_3 and Metalaxyl increased the elongation of seedling height of infant seedling while Tetracycle decreased the seedling height, To increase the seedling height of infant seedling, the foliar spary application of $GA_3 was better than seed-soaking treatment. The optimum concentration of $GA_3 for the foliar spray was about l0ppm and the optimum application time of $GA_3 was 3 to 4 days after sowing.

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Determination of Antifungal Activity on Pepper Anthracnose and Plant Growth Promoting Activity of Pleurospermum camtschaticum Root Extract (누리대 뿌리 추출물의 고추 탄저병에 대한 항균 및 생장 촉진 활성 검정)

  • Inkyu Lee;Young Sun Baek;Youn Su Lee
    • Research in Plant Disease
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    • v.29 no.3
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    • pp.268-275
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    • 2023
  • This study was conducted to confirm the utilization of Pleurospermum camtschaticum root extract as an organic agricultural material. Antioxidant activity of P. camtschaticum root extract, closely related to antibacterial activity, increased in a dose-dependent manner. In mycelial growth inhibitory activity, 100% P. camtschaticum root extract supressed over 70% for Colletotrichum coccodes and over 68% for Colletotrichum dematium. In the pepper fruit anthracnose development test, the size of the lesion decreased in a dose-dependent manner, which showed the same tendency as the previous results in inhibitory activity on mycelial growth. In the pepper seed germination and red pepper growth promotion test of P. camtschaticum root extract, oposite results was confirmed. The lower the concentration, the more the seed germination and growth promotion effects were shown. The phenol content of pepper leaves was also measured after pepper growth promotion test have been completed. The phenol content related to antibacterial activity increased in all treated groups compared to the untreated group. Therefore, the results of this study showed the possibility of development as an organic material.

Effect of Plant growth regulators on flowering in Camellia species. (식물생장조절제 처리가 동백의 화성에 미치는 영향)

  • SeonHaLee
    • Korean Journal of Plant Resources
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    • v.1 no.1
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    • pp.48-52
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    • 1988
  • In order to examine the effect of growth regulators on flower bud formation and anthesis, various growth regulators were applied during the initiation and growthstages of flower bud development in Camellia. The inhibitor CCC increased flowerbud formation. But gibberellin had a strong suppressing effect of flower budformation while it stimulated elongatien of shoots. On the other hand, gibberellinpromoted the growth of flower buds and hastened anthesis, while other growthregulators had no effect.

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Effect of Growth Regulators on the Dormancy of Mulberry (Morus alba L.) Winter Buds in Taegu, Korea (대구지방에서의 뽕나무 휴면타파를 위한 생장조절제 처리 효과)

  • EL FEZAZI Mohammed
    • Journal of Sericultural and Entomological Science
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    • v.30 no.2
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    • pp.75-83
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    • 1988
  • These experiments were carried out to define the rest period of mulberry by treating growth regulators in Taegu, Korea. Results obtained were as follows: It was recognized that the depth of rest in Taegu, Korea, was not deeper than that in Tokyo and Kagoshima, Japan. The rest of mulberry was begun at the end of September, subsequently became deeper through the first October into the late October and then turned gradually into quiescence by the beginning of November. Buds sprayed by gibberellic acid ($GA_3$) 10ppm and urea 0.5% were promoted to sprout, while naphthalene acetic acid (NAA) 0.02% inhibited strongly bud sprouting and abscisic acid (ABA) 20ppm had no effect on the rest of mulberry. Gibberellic acid 10ppm enhanced the rate of green color of bud after incubation for 10 days at $30^{\circ}C$. By the portion of mulberry stems, the depth of rest was different that the middle buds were less dormant than those lower. The optimal time required for the mulberry winter bud break is 15 days incubation at $30^{\circ}C$ as treated with $GA_3$.

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The Effect of Daylength, Shading, and Irrigation on the Flowing of Chrysanthemum coronarium L. (쑥갓의 화아분화에 미치는 일장, 차광 및 관수 처리의 영향)

  • 장매희;박권우
    • Proceedings of the Korean Society for Bio-Environment Control Conference
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    • 1994.05a
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    • pp.102-103
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    • 1994
  • 원예작물의 개화는 일장이나 생장조절제 처리 이외에도 광도, 관수량, 그리고 시비수준 등 재배환경에 따라 영향을 받는다. 차광처리는 광합성률을 낮추어 개화를 지연시키며, 관수처리는 건조시 양분흡수가 저해되거나, 수분부족 자체가 스트레스로 작용하여 종자생산을 촉진시키는 생식생장으로의 전환을 유도할 가능성도 있다. 쑥갓은 국내에서 엽채류로 4계절을 통해 많이 이용되나 개화생리에 대한 연구가 미비하다. (중략)

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