• Title/Summary/Keyword: Semi dry

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Growth Characteristics and Productivity of New Orchardgrass(Dactylis glomerata L.) Variety “Jangbeol 101” (오차드그라스 신품종 “장벌 101호”의 생육특성과 수량성)

  • 임용우;최기준;성병렬;임영철;김맹중;박근제;김기용;정종원;박남건
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.23 no.3
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    • pp.203-206
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    • 2003
  • New orchardgrass(Dactylis glomerata L.) variety named as “Jangbeol 101” was developed by the National Livestock Research Institute(NLRI) in 2002. To develope the new variety of orchardgras, 5 superior clones were selected and polycrossed for seed production. Synthetic seeds were examined on the agronomic growth characteristics and forage production at Suwon from 1995 to 1998, and regional trials were conducted in Suwon, Namwon and Pyungchang from 1999 to 2002 and Jeju from 2000 to 2002, respectively. “Jangbeol 101” showed semi-erect growth habit in fall and spring and medium type in length of flag leaf and upper internode. Plant height of “Jangbeol 101” was short compared to that of standard variety, “Ambassador” and heading date was delayed about 2 days as 14th May compared to Ambassador. Characters such as winter hardiness, regrowth, moisture tolerance, disease resistance of “Jangbeol 101” were stronger or better than those of Ambassador. “Jangbeol 101” showed 9% higher dry matter yield as 12,374 kg/ha compared to Amabassador. Nutritive value was appeared to be similar in both varieties.

Growth Characteristics and Productivity of New Orchardgrass(Dactylis glomerata L.) Variety "Jangbeol 102" (오차드그라스 신품종 "장벌 102호"의 생육특성과 수량성)

  • 임용우;최기준;성병렬;임영철;김맹중;박근제;김기용;이종경;고서봉
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.23 no.3
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    • pp.207-210
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    • 2003
  • "Jangbeol 102" is a new orchardgrass(Dacrylis glomerata L.) variety developed by the National Livestock Research Institute(NLRI) in 2002. To develope the new variety of orchardgrass, 5 superior clones were selected and polycrossed for seed production. Agronomic growth characteristics and forage production of "Jangbeol 102" were examined at Suwon from 1995 to 1998, and regional trials were conducted in Suwon, Namwon and Pyungchang from 1999 to 2002 and Jeju from 2000 to 2002, respectively. "Jangbeol 102" showed semi-erect growth habit in fall and spring and medium to long type in length of flag leaf and upper internode. Plant height of "Jangbeol 102" was similar to that of standard variety, "Ambassador" and heading date was I day faster as 11th May compared to Ambassador. Characters such as winter hardiness, regrowth, moisture tolerance, disease resistance of "Jangbeol 102" were stronger or better than those of Ambassador, specially in regrowth and disease resistance. "Jangbeol 102" showed 18% higher dry matter yield(13,430kg/ha) compared to Amabassador. Nutritive value was appeared to be similar in both varieties.assador. Nutritive value was appeared to be similar in both varieties.

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.

Growth characteristics and Productivity of Italian Ryegrass (Lolium multiflorum Lam.) New Variety, 'Green Call' (이탈리안 라이그라스 신품종 '그린콜'의 생육특성과 수량성)

  • Ji, Hee Chung;Whang, Tae Young;Lee, Ki-Won;Kim, Won Ho;Woo, Jae Hoon;Hong, Ki Hung;Choe, Kuh Wann
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.38 no.4
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    • pp.247-252
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    • 2018
  • This experiment was carried out to breed a very early maturing variety of Italian ryegrass (Lolium multiflorum Lam.) in Grassland and Forage Crops Division, National Institute of Animal Science, RDA, Cheonan from 2015 to 2017. New variety of Ryegrass, 'Green Call' is a diploid variety with green in leaf color and has semi-erect growth habit in late autumn and erect growth habit in early spring, 'Green Call' was on April 25 in heading date as a early-maturing variety. Also 'Green Call' was narrower by 2 mm in flag leaf width, longer by 1.3 cm in flag leaf length and shorter by 5 cm in plant height than those of control variety, 'Florida 80', respectively. 'Green Call' was also thicker by 0.14 mm in stem thickness and strong in winter hardness. Dry matter (DM) yield (11,592 kg/ha) of 'Green Call' was similar to that of 'Florida 80'. Total digestible nutrient (TDN), crude protein (CP) and relative feed value (RFV) of 'Green Call' were 60.8, 10.3 and 96.7 % which are 2.1, 1.1, 6.9 % higher than those of 'Florida 80', respectively. Acid detergent fiber (ADF) and neutral detergent fiber (NDF) of 'Green Call' were 35.5 and 58.9 % which are 2.7 and 2.3 % lower than those of 'Florida 80', respectively.

Growth Characteristics and Yield of a New Italian Ryegrass (Lolium Multiflorum Lam.) Variety, 'Earlybird' (이탈리안 라이그라스 신품종 '얼리버드'의 생육특성과 수량성)

  • Jae Hoon Woo;Bo Ram Choi;Chang-Woo Min;Ki-Won Lee
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.44 no.2
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    • pp.127-132
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    • 2024
  • This experiment was conducted to breed a very early-maturing variety of Italian ryegrass (Lolium multiflorum Lam.) at the Grassland and Forage Crops Division, National Institute of Animal Science, RDA, Cheonan, Korea, from 2022 to 2023. The new variety, named "Earlybird," is a diploid variety characterized by green leaf color, a semi-erect growth habit in late autumn/fall, and an erect growth habit in early spring. With a heading date of April 30, Earlybird is categorized as a very early-maturing variety. Compared to the "Kowinearly" control variety, Earlybird's flag-leaf width is wider by 0.2 mm, its flag-leaf length is longer by 1.4 cm, and its plant height is greater by 10.5 cm. Additionally, Earlybird's ear length is 1.4 cm longer than Kowinearly's, and it exhibits lodging resistance. Although the dry matter yield of Earlybird (7,469 kg/ha) is smaller than that of Kowinearly, the difference is not statistically significant. The total digestible nutrient and crude protein content of Earlybird are 63.5% and 8.6%, respectively, which are higher than those of Kowinearly by 1.8% and 0.3%, respectively. The neutral detergent fiber and acid detergent fiber content of Earlybird are 56.9% and 32.0%, respectively, which are lower than those of Kowinearly by 2.2% and 2.3%, respectively.

Growth Characteristics and Forage Productivity of New Forage Barley Variety, 'Miho' (청보리 신품종 '미호'의 생육특성과 수량성)

  • Oh, Young-Jin;Park, Tae-Il;Park, Hyoung-Ho;Han, Ouk-Kyu;Song, Tae-Hwa;Park, Jong-Chul;Kim, Yang-Kil;Park, Jong-Ho;Kang, Hyeon-Jung;Kang, Chon-Sik;Cheong, Young-Keun;Kim, Kyong-Ho;Kim, Bo-Kyeong;Yun, Geon-Sig;Hong, Gi-Heung;Bae, Jeong-Suk;Lee, Seong-Tae
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.36 no.4
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    • pp.370-375
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    • 2016
  • The purpose of development new variety 'Miho' (Hordeum vulgare L.) is a favorite with livestock feed and develop varieties resistant to disease and lodging. 'Miho' was carrying out the growth habit of group III with green and mid-wide leaf. Awn that is related to preference of livestock is a semi-smooth awn. This cultivar had 96 cm of culm length, 650 of spikes $per\;m^2$. Heading date of 'Miho' was April 27, and maturing date on May 30, which were later than cultivar 'Youngyang'. It also showed strong winter hardiness, and similar resistance to shattering and bariy yellow mosaic virus (BaYMV) compared with those of check one. The best thing among the traits of a good quality with the plant green at the latter growing period. The average forage dry matter yield in the regional yield trial was about 13.1, 12.1 MT per ha in upland and paddy field, respectively, which were 9%, 2% higher than that of the check cultivar. It's also showed 6.8% crude protein, 27.1% ADF (acid detergent fiber), and 67.5% TDN (total digestible nutrients), including higher silage quality for whole crop barley. This cultivar would be suitable for the area whose average minimum temperature was above $-8^{\circ}C$ January in Korean peninsula.

Effect of Pig Slurry Fertigation on Soil Chemical Properties and Growth and Development of Cucumber (Cucumis sativus L.) (돈분 액비 관비가 오이의 생육 및 토양화학성에 미치는 영향)

  • Park, Jin-Myeon;Lim, Tae-Jun;Lee, Seong-Eun;Lee, In-Bok
    • Korean Journal of Soil Science and Fertilizer
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    • v.44 no.2
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    • pp.194-199
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    • 2011
  • This study was conducted to evaluate fertigation effects of pig slurry (PS) and chemical fertilizer (CF) in cucumber by investigating the growth and yield, nutrient content and uptake, nutrient use efficiency, and soil characteristics in greenhouse cultivation. The cropping patterns of cucumber were semi-forcing culture and retarding culture, and the experiment involves four treatments: No fertilizer (NF), $26mg\;L^{-1}$ and $52mg\;L^{-1}$ of N application by slurry composting biofiltration liquefied fertilizer (SCBLF), and $52mg\;L^{-1}$ of N treatment by chemical fertilizer. The difference on the plant height of cucumber between SCBLF and CF treatments was no significant, but fresh weight and dry weight of stem and root were higher in $26mg\;L^{-1}$ SCBLF treatment. The Ca content of the leaf was lower in the treatments of SCBLF and the K content of the root was lower in the $52mg\;L^{-1}$ CF treatment. The Ca content of the stem was lowest in the $52mg\;L^{-1}$ CF treatment and the mineral content of the fruit showed no significant difference. In case of semi-forcing culture, the gross yield was lower in the $52mg\;L^{-1}$ CF treatment and the yield of unmarketable fruit was lower in the SCBLF treatments. The nutrient use efficiency of cucumber is as follows: K (8.3 ~ 30.9%), N (4.2 ~ 13.0%), P (1.9 ~ 2.0%). The SCBLF treatments showed higher figure in the soil pH than that of the CF treatment, while EC and the content of $NO_3$-N were higher in the CF treatment than the former. The content of exchangeable K was higher in the plot treated with $52mg\;L^{-1}$ SCBLF, and there were no significant differences in the content of Ca and Mg between the treatments. In conclusion, it is suggested that the application of liquefied manure made from pig slurry may be able to replace the use of chemical fertilizer in nitrogen and potassium.

Effect of Different Nutrient Solution and Light Quality on Growth and Glucosinolate Contents of Watercress in Hydroponics (배양액의 종류 및 광질이 물냉이의 생육 및 Glucosinolate 함량에 미치는 영향)

  • Choi, Jae Yun;Kim, Sung Jin;Bok, Kwon Jeong;Lee, Kwang Ya;Park, Jong Seok
    • Journal of Bio-Environment Control
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    • v.27 no.4
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    • pp.371-380
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    • 2018
  • Aim of this study was to investigate the effects of different nutrient solutions and various light qualities generated by LED on the growth and glucosinolates contents of watercress (Nasturtium officinale) grown under hydroponics for 3 weeks. The seeds of watercress were sown on crushed rockwool media and raised them for two weeks. They were transplanted in a semi-DFT (deep flow technique) hydroponics system. A controlled-environment room was maintained at $20{\pm}1^{\circ}C$ and $16{\pm}1^{\circ}C$ temperatures and $65{\pm}10%$ and $75{\pm}10%$ relative humidity (day and night, respectively), with a provided photosynthetic photon flux density (PPFD) of $180{\pm}10{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$ and a photoperiod of 16/8h. To find out the best kinds of nutrient solutions for growing watercress, Otsuka House 1A (OTS), Horticultural Experiment Station in Korea (HES), and Netherland's Proefstaion voor Bloemisterij en Gasgroente (PBG) were adapted with initial EC of $1.0-1.3dS{\cdot}m^{-1}$ and pH of 6.2, irradiating PPFD with fluorescent lamps (Ex-1). Either monochromatic (W10 and R10) or mixed LEDs (R5B1, R3B1, R2B1G1, and W2B1G1) were irradiated with a differing ratio of each LED's PPFD to understanding light quality on the growth and glucosinolates contents of watercress (Ex-2). Although significant difference in the shoot growth of watercress was not found among three nutrient solutions treatments, but the root fresh weight increased by 13.7% and 55.1% in PBG and OTS compared to HES, respectively. OTS increased the gluconasturtiin content by 96% and 65% compared to PBG and HES. Compared with the white light (W10), the red light (R10) showed a 101.3% increase in the shoot length of watercress. Increasing blue light portion positively affected plant growth. The content of total glucosinolates in watercress was increased by 144.5% and 70% per unit dry weight in R3B1 treatment compared with R2B1G1 and W10 treatments, respectively. The growth and total glucosinolates contents of the watercress were highest under R3B1 among six light qualities.

Sprouting Inhibition after CIPC Spraying on Early and Mid-season Potato Varieties during Storage in Semi-underground Warehouse at Room Temperature in Summer (CIPC 처리한 조·중생종 감자의 반지하 저장고를 이용한 하계 실온저장 중 맹아 억제 효과 비교)

  • Kyusuk Han;Byung-Sup Kim;Sae Jin Hong;Young Hun Lee
    • Journal of Bio-Environment Control
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    • v.32 no.2
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    • pp.172-180
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    • 2023
  • This study was carried out to determine the sprouting period of early and mid-season varieties, which includes 'Atlantic', 'Chubaek', and 'Superior', during the summer storage period in a semi-underground warehouse without cooling system. And also it was investigated the effect of chlorpropham [Propan-2-yl N-(3-chlorophenyl)carbamate, CIPC] treatment on the sprouting inhibition for the varieties. This study was conducted to figure out a sprout inhibitory effect when CIPC was applied to 1kg of the potato tubers at concentrations of 10 mg and 20 mg which are lower than the treatment concentrations of ca 30 mg prescribed by the positive list system (PLS). The internal temperature of the warehouse used in this experiment was lowered by 5℃ or more than the outside temperature. The difference between the lowest and highest temperature during the experiment throughout the day was 5℃. It showed the effect of reducing to 1/2 of the difference in outdoor temperature. As for the sprouting of potatoes, the extremely early variety 'Chubaek' sprouts appeared at the 6th week of storage of control and it was the fastest sprouting potato among the control groups of the varieties. Sprouting began to appear in the Superior at the 6th week of storage, while the 'Atlantic' sprouted at the 8th week of storage. The appearance of sprouts was suppressed in all treatment groups of 'Atlantic' and 'Superior' varieties in CIPC treatments. Sprouts were observed in all treatment groups of 'Chubaek' after the 7th week, but the elongations of the sprouts in tubers were completely inhibited until the 8th week of storage. 'Atlantic' and 'Superior' seemed to have a sprouting inhibitory effect even with a low CIPC concentration of 10 mg·kg-1, with the exception of extremely early variety 'Chubaek' that breaks out of the dormancy quickly. Although weight loss occurred continuously during storage, it was minor loss of 0.7-1.6%. There was no consistent trend for changes of the loss in the varieties and CIPC treatments. Most common pathological disorder was the dry rot during the experiment, but only few were affected. The use of the tubers treated at 18℃ and 90% RH for 10 days and the rack of refrigeration system which lead to lack of convection seemed to have suppressed the spread of pathogens.

A Land Resources Survey of the Mula Area, S. E. Spain (동남(東南)스페인 Mula지역(地域)에서의 Land Resources Survey)

  • Yun, Suckew
    • Economic and Environmental Geology
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    • v.6 no.1
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    • pp.29-64
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    • 1973
  • A land resources survey in the semi-arid area, Mula in S. E. Spain, of $400km^2$ is compiled. The basic aim of the project is to investigate the intrinsic qualities of the land resources of the area by means of applying an integrated method of natural resources survey mainly concerning with analysis and synthesis of land complexes, each of them represents an area or a group of areas with similar patterns of landforms, soils and vegetation, based on a geomorphological approach. The area is characterized by a linear arrangement of relief pattern with an asymmetric homoclinal repetition of slope attitudes elongating WSW-ENE, dipping steeply on the NW sides and gently on the SE sides, which have been resulted from the post-Alpine folding of the Triassic to Cretaceous limestone, the Eocene limestone, the Oligocene sandstone and the lower Miocene limestone and marl, and the post-lower Miocene faulting, tilting and subsequent differential erosion of the Miocene sedimentary formations. An integrated body of information in geology, landforms, soils and vegetation, which are significantry interrelated as an environmental complex, has been obtained. Using this data, 26 land complexes developing on the various situations of landforms, such as folded mountain ranges, tilted tablelands, bevelled cuestas, degraded hill-lands associating with enormous foots lopes, undulating terrains and terraced or flat plains, have been differentiated, mapped and described. The soils of the area are mostly light colored calcic lithosols which have been derived dominantly from the marly parent materials and developed into remarkable slope catenas in some places depending on the relief conditions. The land uses of the area are mainly characterized by the perennially irrigated cultivation of citrus orchards along the terraced alluvial deposits fringing the Segura and Mula River, and the dry-land cereal cultivation on gentler slopes. Pioneer dry-land cultivations within the shrubs on steeper slopes are restricted to the unchannelled tributary drainage floors. The availability of water is a fundamental controlling factor for existence of native and cultivated vegetation as a whole, and a number of active processes including sheet wash and gully erosion, especially on the scarp slopes, are the other important factors to be considered in conservation and management of the land in the area.

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