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New Cultivar Developed

이모작 적응 조생 복합내병충성 고 바이오매스 사료용 벼 ‘조우’

안억근*, 원용재, 이점호, 정응기, 박향미, 홍하철, 장재기, 현웅조, 정국현, 이정희

‘Jowoo’, Early Maturing, Multiple Disease and Insect Resistant High Biomass Yielding Rice Cultivar for Winter Forage Crop-Whole Crop Silage Rice Double Cropping

Korean Journal of Breeding Science 2021;53(2):154-162.
Published online: June 1, 2021

농촌진흥청 국립식량과학원

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

*Corresponding Author (E-mail: okahn@korea.kr, Tel: +82-31-695-4027, Fax: +82-31-695-4029)
• Received: April 8, 2021   • Revised: April 13, 2021   • Accepted: May 6, 2021

Copyright © 2021 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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Citations

Citations to this article as recorded by  Crossref logo
  • Mid-late Maturing, Multiple-Disease-and-Insect-Resistant, High Yielding Forage Rice Cultivar ‘Gowoo’ with Glabrous Leaf and Hull
    Eok-Keun Ahn, Hyang-Mi Park, Kuk-Hyun Jung, Ung-Jo Hyun, Yong-Jae Won, Jeom-Ho Lee, Ha-Cheol Hong, Jae-Ki Chang, Jeong-Heui Lee, Yoon-Sung Lee, Sang-Beom Lee
    Korean Journal of Breeding Science.2023; 55(2): 163.     CrossRef
  • ‘Miwoo’, a Mid-Late Maturing, Multiple Disease and Insect Resistant, High Biomass Yielding a Rice Cultivar for Whole Crop Silage Use
    Eok-Keun Ahn, Yong-Jae Won, Ha-Cheol Hong, Hyang-Mi Park, Kuk-Hyun Jung, Ung-Jo Hyun, Jae-Ki Chang, Jeong-Heui Lee, Jeom-Ho Lee, Jung-Pil Suh
    Korean Journal of Breeding Science.2022; 54(1): 43.     CrossRef
  • Early Maturing Whole Crop Silage Japonica Rice Cultivar 'Jonong' with Short Growth Duration and Numerous Spikelets
    Hyun-Su Park, Man-Kee Baek, Woo-Jae Kim, Jeong-Ju Kim, Jong-Min Jeong, Young-Chan Cho, Jong-Cheol Ko, Ji-Ung Jeung, O-Young Jeong, Chang-Min Lee, Suk-Man Kim, Ki-Young Kim, Jeom-Ho Lee
    Korean Journal of Breeding Science.2021; 53(3): 318.     CrossRef

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‘Jowoo’, Early Maturing, Multiple Disease and Insect Resistant High Biomass Yielding Rice Cultivar for Winter Forage Crop-Whole Crop Silage Rice Double Cropping
Korean. J. Breed. Sci.. 2021;53(2):154-162.   Published online June 1, 2021
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‘Jowoo’, Early Maturing, Multiple Disease and Insect Resistant High Biomass Yielding Rice Cultivar for Winter Forage Crop-Whole Crop Silage Rice Double Cropping
Korean. J. Breed. Sci.. 2021;53(2):154-162.   Published online June 1, 2021
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‘Jowoo’, Early Maturing, Multiple Disease and Insect Resistant High Biomass Yielding Rice Cultivar for Winter Forage Crop-Whole Crop Silage Rice Double Cropping
Image Image Image Image
Fig. 1 Pedigree diagram of ‘Jowoo’.
Fig. 2 Genealogy of ‘Jowoo’.
Fig. 3 The stature of early-maturing whole crop silage rice variety, ‘Jowoo’(Suweon605) improved a biomass yields, disease and insect resistance in the paddy field and its unhulled(a), brown(b) rice(bottom right)
Fig. 4 Reaction to rice blast disease (A), bacterial blight(race, K1, K2, K3, K3a) (B), brown planthopper (C) and cold stress(D) at ripening stage of ‘Jowoo’ that has multiple disease-insect resistance and cold tolerance. Cultivar ‘Anda’ is brown planthopper-resistant and ‘Taebaeg’ sensitive. ‘Jungan’ is cold tolerant.
‘Jowoo’, Early Maturing, Multiple Disease and Insect Resistant High Biomass Yielding Rice Cultivar for Winter Forage Crop-Whole Crop Silage Rice Double Cropping

Heading date of whole crop silage rice cultivar, ‘Jowoo’. ('16~'18, LATz)

Plain Region Seeding
date
Transplanting
date
Heading date
Jowoo Nokyang
Central Suwon Apr. 20 May 25 Aug. 5 Aug. 8
Honam Jeonju Apr. 25 May 30 Aug. 6 Aug. 8
Naju Apr. 25 May 30 Aug. 8 Aug. 8
Yeongnam Miryang Apr. 25 May 30 Aug. 5 Aug. 11
Average - - Aug. 6** Aug. 9

Major agronomic traits and yield components of ‘Jowoo’. ('16~'18, Suwon)

Variety Culm Lengthz (cm) Panicle length (cm) No. of panicles/hill No. of spikelet/panicle Ratio of ripened grain (%) 1,000 grain weight of brown rice (g)
Jowoo 97±4** 24±1** 12±1ns 120±13** 81.1±4.5** 22.1±1.4**
Nokyang 85±3 25±1 12±1 96±4 63.8±13.1 25.9±1.1

Major growth characteristics of the ‘Jowoo’ in the early stages. ('16~'18, LATz)

Variety Germinationy rate (%) Seedlingx height(cm) Early
elongation
Coldw tolerance Discolorationv
Jowoo 91.0±6.0** 21.2±0.7ns good 7 6
Nokyang 50.3±37.6 20.9±0.9 normal 7 6

Response to physiological and environmental stress. ('16~'18, LATz)

Variety Premature
heading
(%)
Appe-arance
of
wilting
Adult leaf
sense-cence
Premature
germination of
panicley (%)
Cold tolerancex
Heading delay
(days)
Grain fertility
(%)
PAw
Jowoo 0.0 Strong Normal 4.4* 15ns 74.5** 3
Nokyang 0.0 Strong Late 45.6 17 18.0 8

Agronomic traits related to lodging resistance of ‘Jowoo’. ('18, LATz)

Variety Culm length (cm) Third internode-length (cm) Breaking strength (g) Lodging index Lodging in the field (1~9)
Jowoo 84 11.9 1,628.7 153 1
Nokyang 69 9.7 1,592.3 136 1

Reaction to rice blast disease of ‘Jowoo’ which has strong resistance about leaf blast and resistance about neck blast. ('16~'18, LATz)

Variety Reaction to leaf blast at nursery testy (0-9) Reaction to neck blast (%)
No. of site tested (12) Iksan Yesan Miryang
Rx (0-3) M (4-6) S (7-9)
Jowoo 11 1 0 0.2 0.0 0.0
Nokyang 5 4 3 25.0 0.0 0.5

Reaction to bacterial blight, virus diseases and insect pests of ‘Jowoo’ that has multiple resistance. ('16~'18, LATz)

Variety Bacterial blight Virus diseases Resistance to insects
K1 K2 K3 K3a Stripe Dwarf BSDy BPH SBPH
Jowoo Rx R R R R S S MR R
Nokyang R R R S R S S S S

Dry matter yields of whole crop silage rice cultivar, ‘Jowoo’. ('16~'18, LATz)

Region Nokyang(kg/10a) Jowoo(kg/10a)
'16 '17 '18 Ave '16 '17 '18 Ave. Indexx
Central 1,494 1,309 1,597 1,467 1,849 1,677 1,851 1,792 122
Honam 1,348 1,418 1,442 1,403 1,760 1,744 1,763 1,756 125
Yeongnam 2,208 1,694 1602 1,835 2,398 1,796 1,694 1,963 107
Average 1,599 1,460 1,521 1,527±277 1,942 1,741 1,768 1,817±219** 119

Nutritive value of ‘Jowoo’ on 30 days after heading for silage use. ('18, FACTz)

Variety Chemical properties (%)
CFy CAx CPw Lignin ADFv NDFu TDNt
Jowoo 1.7ns 11.1ns 6.9* 3.1ns 35.7ns 21.2ns 72.2ns
Nokyang 1.8 10.1 8.9 3.4 40.0 22.6 71.1

Grain shape, appearance and amylose content of ‘Jowoo’. ('16~'18, LATz)

Variety Unhulled rice (mm) Brown rice (mm) White core/belly
(0-9)
Amylose content
(%)
Ly Wx Tw L/Wv L W T L/W
Jowoo 8.55 3.29 2.13 2.61 5.59 2.65 1.96 2.11 3/1 18.1
Nokyang 8.97 3.51 2.40 2.56 5.75 2.85 2.20 2.02 0/1 19.4
Table 1 Heading date of whole crop silage rice cultivar, ‘Jowoo’. ('16~'18, LATz)

Asterisks indicate significant differences between ‘Nokyang’ and ‘Jowoo’ as evaluated by the t-test: **p<0.01

zLocal adaptability test

Table 2 Major agronomic traits and yield components of ‘Jowoo’. ('16~'18, Suwon)

Asterisks indicate significant differences between ‘Nokyang’ and ‘Jowoo’ as evaluated by the t-test: **p<0.01, nsNot significant

zLength from soil surface to panicle neck

Table 3 Major growth characteristics of the ‘Jowoo’ in the early stages. ('16~'18, LATz)

Asterisks indicate significant differences between ‘Nokyang’ and ‘Jowoo’ as evaluated by the t-test: **p<0.01, nsNot significant

zLocal adaptability test

yGermination rate was investigated after incubating 13℃, 15 days

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

wCold tolerance was evaluated at seedling stage after treating 13℃, 10 days

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

Table 4 Response to physiological and environmental stress. ('16~'18, LATz)

Asterisks indicate significant differences between ‘Nokyang’ and ‘Jowoo’ as evaluated by the t-test: **p<0.01, *p<0.05, nsNot significant

zLocal adaptability test

yGermination rate at 7 days after incubation (25℃, 100% RH)

xCold tolerance was evaluated at a cold-water (17℃) irrigated screening nursery in Chuncheon

wPhenotypic acceptability : strong(1), medium strong(3), medium(5), medium weak(7), weak(9)

Table 5 Agronomic traits related to lodging resistance of ‘Jowoo’. ('18, LATz)

zLocal adaptability test

Table 6 Reaction to rice blast disease of ‘Jowoo’ which has strong resistance about leaf blast and resistance about neck blast. ('16~'18, LATz)

zLocal adaptability test

yData was investigated in 12 leaf blast test site at local adaptability test region.

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

Table 7 Reaction to bacterial blight, virus diseases and insect pests of ‘Jowoo’ that has multiple resistance. ('16~'18, LATz)

zLocal adaptability test

yBSD: black-streak dwarf, BPH: brown planthopper, SBPH: small brown planthopper

xR: resistant, S: susceptible

Table 8 Dry matter yields of whole crop silage rice cultivar, ‘Jowoo’. ('16~'18, LATz)

Asterisks indicate significant differences between ‘Nokyang’ and ‘Jowoo’ as evaluated by the t-test: **p<0.01

zLocal adaptability test

Table 9 Nutritive value of ‘Jowoo’ on 30 days after heading for silage use. ('18, FACTz)

Asterisks indicate significant differences between ‘Nokyang’ and ‘Jowoo’ as evaluated by the t-test: *p<0.05, nsNot significant

zFoundation of Agri. Tech. Commercialization & Transfer, yCF: crude fat, xCA: crude ash, wCP: crude protein, vADF: acid detergent fiber, uNDF: neutral detergent fiber, tTDN: total digestible nutrients

Table 10 Grain shape, appearance and amylose content of ‘Jowoo’. ('16~'18, LATz)

zLocal adaptability test

ylength, xwidth, wthickness, vlength/width ratio