농촌진흥청 국립식량과학원
National Institute of Crop Science, RDA, Suwon 16429, Republic of Korea
Copyright © 2021 by the Korean Society of Breeding Science
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| 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 | |
| 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 |
| 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 |
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)
| 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 |
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)
| 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 |
| 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 |
| 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 | |||
| 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 | |
| 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 |
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
| 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 | |
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 | |
Asterisks indicate significant differences between ‘Nokyang’ and ‘Jowoo’ as evaluated by the t-test: **p<0.01
zLocal adaptability test
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
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)
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)
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
Asterisks indicate significant differences between ‘Nokyang’ and ‘Jowoo’ as evaluated by the t-test: **p<0.01
zLocal adaptability test
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
zLocal adaptability test
ylength, xwidth, wthickness, vlength/width ratio