1 농촌진흥청 국립식량과학원
1 National Institute of Crop Science, RDA, Wanju 565-851, Republic of Korea
2 농촌진흥청 국립농업과학원
2 National Academy of Agricultural Science, RDA, Wanju 565-851, Republic of Korea
3 전라북도농업기술원
3 Jeolabuk-do Agricultural Research & Extension Services, Iksan 570-704, Republic of Korea
© Korean Society of Breeding Science All rights reserved
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| Variety | Heading date | Culm lengthz (cm) | Panicle length (cm) | No. of panicles /hill | No. of spikelet /panicle | Ratio of ripened grain (%) | 1000-grain weight of brown rice (g) |
|---|---|---|---|---|---|---|---|
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| Cheongun | Aug.13 | 87ns | 21 | 13ns | 114* | 76.0* | 22.2ns |
| Hwaseong | Aug.08 | 84 | 21 | 14 | 93 | 81.8 | 22.4 |
| Variety | Reaction to blast nursery test (0-9)z | Area ratio to leaf lesion of Piricularia grisea of sequential plantings (%) | Reaction to neck blastx (%) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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| No. of tested sitesy | |||||||||||||||
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| R (0-3) | M (4-6) | S (7-9) | Mean | 1 | 2 | 3 | 4 | 5 | 6 | 7 | Persisten ce (0-7) | No. of susceptible race | Icheon | Jecheon | |
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| Cheongun | 11 | 3 | 0 | 2.6* | 55.0 | 45.0 | 15.0 | 5.0 | 5.0. | 0.5 | 0.5 | 7 | 9 | 0.1 | 2.1 |
| Hwaseong | 0 | 12 | 2 | 5.8 | 58.0 | 58.0 | 48.0 | 50.0 | 50.0 | 38.0 | 32.0 | 7 | 18 | 4.9 | 8.7 |
| Variety | Bacterial blightz | Virus diseases | Resistance to insectsy | ||||||
|---|---|---|---|---|---|---|---|---|---|
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| K1 | K2 | K3 | K3a | Stripe (%) | Dwarf | BSD | BPH | SBPH | |
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| Cheongun | R | R | R | S | R(0.0) | S | S | S | S |
| Hwaseong | S | S | S | S | R(14.1) | S | S | S | S |
| Variety | Premature heading (%) | Occurrence of wilting | Leaf senescence at maturing | Cold tolerancez | Viviparous Germinationw (%) | |||
|---|---|---|---|---|---|---|---|---|
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| Discoloration (1-9)y | Heading delay (day) | Grain fertility (%) | PAx | |||||
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| Cheongun | 0.0 | Strong | Late | 1 | 17 | 42ns | 7 | 5.3* |
| Hwaseong | 0.0 | Strong | Late | 1 | 11 | 53 | 6 | 17.1 |
| Variety | Culm lengthz (cm) | Third internode length (cm) | Top fresh weight (g) | Breaking strength (g) | Moment (g.cm) | Lodging index | Lodging in the field (0~9) |
|---|---|---|---|---|---|---|---|
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| Cheongun | 89* | 14ns | 16.4** | 748* | 1,791* | 239* | 5 |
| Hwaseong | 84 | 12 | 10.7 | 623 | 1,115 | 179 | 1 |
| Variety | Brown rice | White core/velly | Alkali digestive value (1~7) | Protein content (%) | Amylose content (%) | Palatability of cooked rice (-3~3) | ||
|---|---|---|---|---|---|---|---|---|
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| Length (mm) | Width (mm) | L/W ratio | ||||||
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| Cheongun | 4.95ns | 2.83ns | 1.75** | 0/0 | 6.6 | 6.7 | 19.5ns | 0.29 |
| Hwaseong | 4.98 | 2.79 | 1.99* | 2/0 | 6.5 | 6.9 | 20.6 | 0.08 |
| Variety | Milling recovery ratio (%) | Head rice milling recovery ratio (%) | |||
|---|---|---|---|---|---|
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| Brown/rough | Milled/brown | Milled/rough | Head rice | ||
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| Cheongun | 81.7** | 89.9 | 73.4* | 89.3** | 65.6* |
| Hwaseong | 83.2 | 89.9 | 74.8 | 73.8 | 55.2 |
| Region | No.of tested sites | Average milled rice yield (MT/ha) | Index (A/B) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
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| Cheongun | Hwaseong | |||||||||
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| ’10 | ’11 | ’12 | Ave. (A) | ’10 | ’11 | ’12 | Ave. (B) | |||
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| Middle plain area | 4 | 4.75 | 5.08 | 5.23 | 5.02ns | 4.73 | 4.72 | 5.09 | 4.84 | 104 |
| Mid-west coastal area | 1 | 5.27 | 3.66 | 5.54 | 4.82ns | 5.18 | 3.93 | 5.71 | 4.94 | 97 |
| Average | 5 | 4.86 | 4.79 | 5.29 | 4.98ns | 4.82 | 4.56 | 5.21 | 4.86 | 102 |
Major agronomic traits and yield components.
| Variety | Heading date | Culm length |
Panicle length (cm) | No. of panicles /hill | No. of spikelet /panicle | Ratio of ripened grain (%) | 1000-grain weight of brown rice (g) |
|---|---|---|---|---|---|---|---|
|
|
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| Cheongun | Aug.13 | 87 |
21 | 13 |
114 |
76.0 |
22.2 |
| Hwaseong | Aug.08 | 84 | 21 | 14 | 93 | 81.8 | 22.4 |
*Significant at 5% level
nsNo significance
zLength from soil surface to panicle neck
Reaction to blast disease.
| Variety | Reaction to blast nursery test (0-9) |
Area ratio to leaf lesion of Piricularia grisea of sequential plantings (%) | Reaction to neck blast |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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| No. of tested sites |
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| R (0-3) | M (4-6) | S (7-9) | Mean | 1 | 2 | 3 | 4 | 5 | 6 | 7 | Persisten ce (0-7) | No. of susceptible race | Icheon | Jecheon | |
|
|
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| Cheongun | 11 | 3 | 0 | 2.6 |
55.0 | 45.0 | 15.0 | 5.0 | 5.0. | 0.5 | 0.5 | 7 | 9 | 0.1 | 2.1 |
| Hwaseong | 0 | 12 | 2 | 5.8 | 58.0 | 58.0 | 48.0 | 50.0 | 50.0 | 38.0 | 32.0 | 7 | 18 | 4.9 | 8.7 |
*Significant at 5% level
zN fertilizer of blast nursery test: 240 kg/ha
yR: Resistant, M: Moderately resistant, S: Susceptible
xN fertilizer of neck blast test: 220 kg/ha
Reaction to bacterial blight, virus disease and insect pests.
| Variety | Bacterial blight |
Virus diseases | Resistance to insects |
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|---|---|---|---|---|---|---|---|---|---|
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| K1 | K2 | K3 | K3a | Stripe (%) | Dwarf | BSD | BPH | SBPH | |
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| Cheongun | R | R | R | S | R(0.0) | S | S | S | S |
| Hwaseong | S | S | S | S | R(14.1) | S | S | S | S |
zR: Resistant, S: Susceptible
yBPH: Browon planthopper, SBPH: Small brown planthopper
Response to physiological and abiotic stresses.
| Variety | Premature heading (%) | Occurrence of wilting | Leaf senescence at maturing | Cold tolerance |
Viviparous Germination |
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|---|---|---|---|---|---|---|---|---|
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| Discoloration (1-9) |
Heading delay (day) | Grain fertility (%) | PA |
|||||
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| Cheongun | 0.0 | Strong | Late | 1 | 17 | 42 |
7 | 5.3 |
| Hwaseong | 0.0 | Strong | Late | 1 | 11 | 53 | 6 | 17.1 |
*significant at 5% level
nsNo significance
zCold tolerance was evaluated in Chuncheon cold-water (17℃) irrigated nursery
yEvaluation at maximum tillering stage (1: toterance; 9: susceptible)
xPhenotypic Acceptability
wGermination rate at 7 days after incubation
Major characteristics related to lodging.
| Variety | Culm lengthz (cm) | Third internode length (cm) | Top fresh weight (g) | Breaking strength (g) | Moment (g.cm) | Lodging index | Lodging in the field (0~9) |
|---|---|---|---|---|---|---|---|
|
|
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| Cheongun | 89 |
14 |
16.4 |
748 |
1,791 |
239 |
5 |
| Hwaseong | 84 | 12 | 10.7 | 623 | 1,115 | 179 | 1 |
*Significant at 5% and 1% level, respectively
**Significant at 5% and 1% level, respectively
nsNo significance
zlength from upper part of root to panicle neck
Characteristics related to grain shape and grain quality.
| Variety | Brown rice | White core/velly | Alkali digestive value (1~7) | Protein content (%) | Amylose content (%) | Palatability of cooked rice (-3~3) | ||
|---|---|---|---|---|---|---|---|---|
|
|
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| Length (mm) | Width (mm) | L/W ratio | ||||||
|
|
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| Cheongun | 4.95 |
2.83 |
1.75 |
0/0 | 6.6 | 6.7 | 19.5 |
0.29 |
| Hwaseong | 4.98 | 2.79 | 1.99* | 2/0 | 6.5 | 6.9 | 20.6 | 0.08 |
**Significant at 1% level
nsNo significance
Characteristics related to milling quality.
| Variety | Milling recovery ratio (%) | Head rice milling recovery ratio (%) | |||
|---|---|---|---|---|---|
|
|
|||||
| Brown/rough | Milled/brown | Milled/rough | Head rice | ||
|
|
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| Cheongun | 81.7 |
89.9 | 73.4 |
89.3 |
65.6 |
| Hwaseong | 83.2 | 89.9 | 74.8 | 73.8 | 55.2 |
*Significant at 5% and 1% level, respectively
**Significant at 5% and 1% level, respectively
Yield potential of ‘Cheongun’ on local adaptability test.
| Region | No.of tested sites | Average milled rice yield (MT/ha) | Index (A/B) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
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| Cheongun | Hwaseong | |||||||||
|
|
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| ’10 | ’11 | ’12 | Ave. (A) | ’10 | ’11 | ’12 | Ave. (B) | |||
|
|
||||||||||
| Middle plain area | 4 | 4.75 | 5.08 | 5.23 | 5.02 |
4.73 | 4.72 | 5.09 | 4.84 | 104 |
| Mid-west coastal area | 1 | 5.27 | 3.66 | 5.54 | 4.82 |
5.18 | 3.93 | 5.71 | 4.94 | 97 |
| Average | 5 | 4.86 | 4.79 | 5.29 | 4.98 |
4.82 | 4.56 | 5.21 | 4.86 | 102 |
nsNo significance
Significant at 5% level
No significance
Length from soil surface to panicle neck
Significant at 5% level
N fertilizer of blast nursery test: 240 kg/ha
R: Resistant, M: Moderately resistant, S: Susceptible
N fertilizer of neck blast test: 220 kg/ha
R: Resistant, S: Susceptible
BPH: Browon planthopper, SBPH: Small brown planthopper
significant at 5% level
No significance
Cold tolerance was evaluated in Chuncheon cold-water (17℃) irrigated nursery
Evaluation at maximum tillering stage (1: toterance; 9: susceptible)
Phenotypic Acceptability
Germination rate at 7 days after incubation
Significant at 5% and 1% level, respectively
Significant at 5% and 1% level, respectively
No significance
length from upper part of root to panicle neck
Significant at 1% level
No significance
Significant at 5% and 1% level, respectively
Significant at 5% and 1% level, respectively
No significance