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중만생 복합내병충성 고 바이오매스 사료용 벼 ‘영우’

안억근*, 이상복, 원용재, 이점호, 장재기, 정응기, 정국현, 이정희, 조영찬, 정종민, 서정필, 김정주, 정오영, 전용희, 홍하철, 이규성, 김보경

Mid-late Maturing, Multiple Disease and Insect Resistant, High Biomass Yielding Whole Crop Silage Rice Cultivar ‘Yeongwoo’

Korean Journal of Breeding Science 2018;50(3):331-339.
Published online: August 31, 2018

농촌진흥청 국립식량과학원

National Institute of Crop Science, RDA, Suwon 16429, Republic of Korea

(E-mail: okahn@korea.kr, Tel: +82-31-695-4027, Fax: +82-31-695-4029)
• Received: June 18, 2018   • Accepted: June 25, 2018

Copyright: © 2018 by the Korean Society of Breeding Science

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Mid-late Maturing, Multiple Disease and Insect Resistant, High Biomass Yielding Whole Crop Silage Rice Cultivar ‘Yeongwoo’
Korean. J. Breed. Sci.. 2018;50(3):331-339.   Published online September 1, 2018
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Mid-late Maturing, Multiple Disease and Insect Resistant, High Biomass Yielding Whole Crop Silage Rice Cultivar ‘Yeongwoo’
Korean. J. Breed. Sci.. 2018;50(3):331-339.   Published online September 1, 2018
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Mid-late Maturing, Multiple Disease and Insect Resistant, High Biomass Yielding Whole Crop Silage Rice Cultivar ‘Yeongwoo’
Image Image Image
Fig. 1 Pedigree diagram of ‘Yeongwoo’
Fig. 2 Genealogical diagram of ‘Yeongwoo’.
Fig. 3 The appearance of whole crop silage rice variety, ‘Nokyang’(left) and ‘Yeongwoo(Suweon573)’(right) improved a dry matter yields, disease and insect resistance in the paddy field(upper) and its unhulled(left), brown(middle), milled(right) rice(lower)
Mid-late Maturing, Multiple Disease and Insect Resistant, High Biomass Yielding Whole Crop Silage Rice Cultivar ‘Yeongwoo’

Heading date of whole crop silage rice cultivar, ‘Yeongwoo’.

Plain Region Seeding date Transplanting date Heading date

Yeongwoo Nokyang
Central Suwon Apr. 20 May 25 Aug. 19 Aug. 11
Honam Iksan Apr. 25 May 30 Aug. 14 Aug. 11
Naju Apr. 25 May 30 Aug. 14 Aug. 15
Yeongnam Milyang Apr. 25 May 30 Aug. 13 Aug. 13

Average - - Aug. 15 Aug. 13

Major agronomic traits and yield components.

Variety Culm length (cm) Panicle length (cm) No. of panicles /hill No. of grains /panicle Ripened grain ratio (%) 1,000 grain weight of brown rice (g)
Yeongwoo 99 26 11 125 80.8 23.6
Nokyang 84 26 10 109 77.0 27.7

Major growth characteristics of the ‘Yeongwoo’ in the early stages, which have, especially, good germination rate at low temperature and early elongation.

Variety Germinationz Rate (%) Seedlingy height(cm) Early Elongation Coldx tolerance Discolorationw
Yeongwoo 90.7 21.4 good 8 7
Nokyang 41.3 18.8 normal 7 6

zGermination rate was investigated after incubating 13°C, 15days

ySeedling height was measured by 3 replicate on 30 days after seeding

xCold tolerance was investigated after treating 13°C, 10days

wGrade standard for discoloration : 1, normal, 3, pale green of leaf tip, 5, 1/3 yellow green of leaf, 7, 2/3 yellowish brown of leaf, 9, most of leaves withered

Response to physiological and environmental stress.

Variety Premature heading (%) Appe-arance of wilting Adult leaf sense-cence Premature germination of paniclez (%) Cold tolerancey

Heading delay (days) Grain fertility (%) PAx
Yeongwoo 0.0 Resistant Normal 16.0 12 34.7 7
Nokyang 3.7 Resistant Normal 29.4 13 16.7 8

zGermination rate at 7 days after incubation (25°C, 100% RH)

yCold tolerance was evaluated at a cold-water (17°C) irrigated nursery in Chuncheon

xPhenotypic acceptability : 1, strong, 3, medium strong, 5, medium, 7, medium weak, 9, weak

Agronomic traits related to lodging resistance of ‘Yeongwoo’.

Variety Culm length (cm) Third Internode-length (cm) Breaking strength (g) Lodging Index Lodging in the field (0 ~ 9)
Yeongwoo 88 15.5 1,871 134 3
Nokyang 85 10.6 1,397 197 1

Reaction to rice blast disease of ‘Yeongwoo’ which has strong resistance about leaf blast and resistance about neck blast.

Variety Reaction to leaf blast at nursery testy (0-9) Reaction to neck blast (%)

No. of site tested (14) Ichon Iksan Milyang

Rz (0-3) M (4-6) S (7-9)
Yeongwoo 11 3 0 0.0 0.2 0.0
Nokyang 2 8 4 40.1 16.3 1.5

zR : resistant(Degree, 0-3), M : moderate(Degree, 4-6), S : susceptible(Degree, 7-9)

yData was investigated in 14 leaf blast test site at local adaptability test region.

Reaction to bacterial disease, virus diseases and insect pests of ‘Yeongwoo’ that has multiple resistance.

Variety Bacterial blight Virus diseases Resistance to insects



K1 K2 K3 K3a Stripe Dwarf Black-streak dwarf BPHy SBPH
Yeongwoo R R R R R S S R R
Nokyang Rz R R S S S S S S

zR : resistant, S : susceptible

yBPH : brown planthopper, SBPH : small brown planthopper

Dry matter yields of whole crop silage rice cultivar, ‘Yeongwoo’.

Region Nokyang(㎏/10a) Yeongwoo(㎏/10a)


’13 ’14 ’15 Ave. ’13 ’14 ’15 Ave. Index
Central 1,511 1,309 1,317 1,379 1,707 1,877 1,844 1,809 131
Honam 1,541 1,610 1,509 1,553 1,887 2,204 2,038 2,043 132
Yeongnam 1,379 1,561 1,525 1,588 2,301 2,037 1,987 2,105 133

Average 1,493 1,523 1,540 1,518 1,946 2,080 1,895 2,000 132

Nutritive value of ‘Yeongwoo’ on 30 days after heading for silage use.

Variety Chemical properties (%)

CFz CPy ADFx NDFw TDNv
Yeongwoo 3.4 5.3 21.8 36.9 71.7
Nokyang 2.9 5.7 19.6 34.0 73.4

zCF : crude fat,

yCP : crude protein,

xADF : acid detergent fiber,

wNDF : neutral detergent fiber,

vTDN : total digestible nutrients

Grain shape, appearance and amylose content of ‘Yeongwoo’.

Variety Unhulled rice Brown rice White core/belly (0-9) Amylose content (%)


Lz Wy Tx L/Ww L W T L/W
Yeongwoo 8.32 2.99 2.10 2.79 5.63 2.56 1.84 2.21 1/3 27.3

Nokyang 7.89 3.08 2.16 2.57 5.72 2.77 1.96 2.07 1/1 20.6

zlength,

ywidth,

xthickness,

wlength/width ratio

Table 1 Heading date of whole crop silage rice cultivar, ‘Yeongwoo’.
Table 2 Major agronomic traits and yield components.
Table 3 Major growth characteristics of the ‘Yeongwoo’ in the early stages, which have, especially, good germination rate at low temperature and early elongation.

Germination rate was investigated after incubating 13°C, 15days

Seedling height was measured by 3 replicate on 30 days after seeding

Cold tolerance was investigated after treating 13°C, 10days

Grade standard for discoloration : 1, normal, 3, pale green of leaf tip, 5, 1/3 yellow green of leaf, 7, 2/3 yellowish brown of leaf, 9, most of leaves withered

Table 4 Response to physiological and environmental stress.

Germination rate at 7 days after incubation (25°C, 100% RH)

Cold tolerance was evaluated at a cold-water (17°C) irrigated nursery in Chuncheon

Phenotypic acceptability : 1, strong, 3, medium strong, 5, medium, 7, medium weak, 9, weak

Table 5 Agronomic traits related to lodging resistance of ‘Yeongwoo’.
Table 6 Reaction to rice blast disease of ‘Yeongwoo’ which has strong resistance about leaf blast and resistance about neck blast.

R : resistant(Degree, 0-3), M : moderate(Degree, 4-6), S : susceptible(Degree, 7-9)

Data was investigated in 14 leaf blast test site at local adaptability test region.

Table 7 Reaction to bacterial disease, virus diseases and insect pests of ‘Yeongwoo’ that has multiple resistance.

R : resistant, S : susceptible

BPH : brown planthopper, SBPH : small brown planthopper

Table 8 Dry matter yields of whole crop silage rice cultivar, ‘Yeongwoo’.
Table 9 Nutritive value of ‘Yeongwoo’ on 30 days after heading for silage use.

CF : crude fat,

CP : crude protein,

ADF : acid detergent fiber,

NDF : neutral detergent fiber,

TDN : total digestible nutrients

Table 10 Grain shape, appearance and amylose content of ‘Yeongwoo’.

length,

width,

thickness,

length/width ratio