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New Cultivar Developed

중만생 복합내병충성 고 바이오매스 사료용 벼 ‘미우’

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

‘Miwoo’, a Mid-Late Maturing, Multiple Disease and Insect Resistant, High Biomass Yielding a Rice Cultivar for Whole Crop Silage Use

Korean Journal of Breeding Science 2022;54(1):43-50.
Published online: March 1, 2022

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: October 19, 2021   • Revised: November 19, 2022   • Accepted: January 8, 2022

Copyright © 2022 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

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‘Miwoo’, a Mid-Late Maturing, Multiple Disease and Insect Resistant, High Biomass Yielding a Rice Cultivar for Whole Crop Silage Use
Korean. J. Breed. Sci.. 2022;54(1):43-50.   Published online March 1, 2022
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‘Miwoo’, a Mid-Late Maturing, Multiple Disease and Insect Resistant, High Biomass Yielding a Rice Cultivar for Whole Crop Silage Use
Korean. J. Breed. Sci.. 2022;54(1):43-50.   Published online March 1, 2022
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‘Miwoo’, a Mid-Late Maturing, Multiple Disease and Insect Resistant, High Biomass Yielding a Rice Cultivar for Whole Crop Silage Use
Image Image Image Image Image
Fig. 1 Pedigree diagram of ‘Miwoo’.
Fig. 2 Genealogy of ‘Miwoo’.
Fig. 3 The stature of mid-late maturing whole crop silage rice variety, ‘Miwoo’(Suweon597, left side) improved a biomass yields, disease and insect resistance and ‘Nokyang’(right side) in the paddy field.
Fig. 4 Reaction to rice blast disease (A, B), bacterial blight(race, K1, K2, K3, K3a) (C, D), brown planthopper (E, F). Cultivar ‘Miwoo’(A, C, F) has multiple disease-insect resistance compared to ‘Nokyang’(B, D). Cultivar ‘Taebaeg’(E) is brown planthopper-susceptible.
Fig. 5 The unhulled and brown rice appearance of high amylose whole crop silage rice variety, ‘Miwoo’(left side) and ‘Nokyang’(right side). ‘Miwoo’ cultivar has more white core and belly compared to ‘Nokyang’.
‘Miwoo’, a Mid-Late Maturing, Multiple Disease and Insect Resistant, High Biomass Yielding a Rice Cultivar for Whole Crop Silage Use

Heading date of whole crop silage rice cultivar, ‘Miwoo’ ('15~'17, LATz)

Plain Seeding
date
Transplanting
date
Heading date
Miwoo Nokyang
Central Apr. 20 May 25 Aug. 21 Aug. 10
Honam Apr. 25 May 30 Aug. 23 Aug. 11
Yeongnam Apr. 25 May 30 Aug. 17 Aug. 12
- - Aug. 21** Aug. 11

Major agronomic traits and yield components of ‘Miwoo’ ('15~'17, Suwon)

Variety Culm Lengthz (㎝) Panicle length
(㎝)
No. of panicles /hill No. of spikelet
/panicle
Ratio of ripened grain(%) 1,000 grain weight of brown rice (g)
Miwoo 99** 28** 12ns 143** 67.0ns 25.9ns
Nokyang 84 26 11 100 67.7 26.3

Major growth characteristics of the ‘Miwoo’ in the early stages ('15~'17, LATz)

Variety Germinationy Rate (%) Seedlingx height(㎝) Early
Elongation
Coldw tolerance Discolorationv
Miwoo 94.7** 19.1* good 6 6
Nokyang 51.0 19.8 normal 7 6

Response to physiological and environmental stress ('15~'17, LATz)

Variety Premature
heading
(%)
Appe-arance
of wilting
Adult leaf
sensecence
Premature
germination of panicley (%)
Cold tolerancex
Heading delay
(days)
Grain fertility
(%)
PAw
Miwoo 0.0 Strong Normal 20.8ns 8ns 14.3ns 8
Nokyang 0.0 Strong Late 28.8 15 15.0 8

Agronomic traits related to lodging resistance of ‘Miwoo’ ('17, LATz)

Variety Culm length
(㎝)
Third Internode-length
(㎝)
Breaking strength
(g)
Lodging Index Lodging in the field
(1~9)
Miwoo 83 14.4 2,425 123 1
Nokyang 79 12.5 1,870 110 1

Reaction to rice blast disease of ‘Miwoo’ which has strong resistance about leaf blast and resistance about neck blast ('15~'17, LATz)

Variety Reaction to leaf blast at nursery testy (0-9) Reaction to neck blast
(%)
No. of site tested (12) Iksan Icheon Miryang
Rx (0-3) M
(4-6)
S
(7-9)
Miwoo
Nokyang
12
2
0
5
0
5
0
.2 4.4
0
.0 40.0
0
.0 0.4

Reaction to bacterial blight, virus diseases and insect pests of ‘Miwoo’ ('15~'17, LATz)

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

Dry matter yields of whole crop silage rice cultivar, ‘Miwoo’ ('15~'17, LATz)

Region Nokyang(㎏/10a) Miwoo(㎏/10a)
'15 '16 '17 Ave. '15 '16 '17 Ave. Index
Central 1,317 1,494 1,309 1,373 1,921 2,030 1,953 1,968 143
Honam 1,485 1,348 1,418 1,403 1,763 1,839 2,008 1,891 135
Yeongnam 1,825 - 1,694 1,760 1,962 2,435 2,111 2,169 123
Average 1,542 1,397 1,460 1,466 1,882 2,036 2,020 1,988** 136

Nutritive value of ‘Miwoo’ on 30 days after heading for silage use ('17, FACTz)

Variety Chemical properties (%)
CFy CAx CPw Lignin ADFv NDFu TDNt
Miwoo
Nokyang
2.7ns 2.5 10.9ns 11.5 6.6* 8.4 1.7ns 2.5 23.0ns 23.7 40.4ns 42.1 70.7ns 70.2

Grain shape, appearance and amylose content of ‘Miwoo’ ('15~'17, LATz)

Variety Unhulled rice Brown rice White
core/belly
(0-9)
Amylose
content
(%)
Ly Wx Tw L/Wv L W T L/W
Miwoo 8.53 3.36 2.30 2.54 5.80 2.80 2.06 2.07 1/3 25.3
Nokyang 8.69 3.38 2.38 2.58 5.74 2.83 2.19 2.02 1/2 19.5
Table 1 Heading date of whole crop silage rice cultivar, ‘Miwoo’ ('15~'17, LATz)

**p<0.01, zLocal adaptability test

Table 2 Major agronomic traits and yield components of ‘Miwoo’ ('15~'17, Suwon)

**p<0.01, nsNot significant

zLength from soil surface to panicle neck

Table 3 Major growth characteristics of the ‘Miwoo’ in the early stages ('15~'17, LATz)

**p<0.01, *p<0.05

zLocal adaptability test

yGermination rate was investigated after incubating 13℃, 15days

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

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

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 ('15~'17, LATz)

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 ‘Miwoo’ ('17, LATz)

zLocal adaptability test

Table 6 Reaction to rice blast disease of ‘Miwoo’ which has strong resistance about leaf blast and resistance about neck blast ('15~'17, 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 ‘Miwoo’ ('15~'17, 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, ‘Miwoo’ ('15~'17, LATz)

**p<0.01

zLocal adaptability test

Table 9 Nutritive value of ‘Miwoo’ on 30 days after heading for silage use ('17, FACTz)

*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 ‘Miwoo’ ('15~'17, LATz)

zLocal adaptability test

ylength, xwidth, wthickness, vlength/width ratio,