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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.
| 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 | |
| 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 |
| 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 |
**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)
| 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 |
| 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 |
| 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 |
|
| 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 | ||
| 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 | |
| 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 |
| 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 | |
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 | |
**p<0.01, zLocal adaptability test
**p<0.01, nsNot significant
zLength from soil surface to panicle neck
**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)
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)
zLocal adaptability test
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)
zLocal adaptability test
yBSD : black-streak dwarf, BPH : brown planthopper, SBPH : small brown planthopper
xR : resistant, S : susceptible
**p<0.01
zLocal adaptability 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,
zLocal adaptability test
ylength, xwidth, wthickness, vlength/width ratio,
