1 국립식량과학원
1 National Institute of Crop Science, RDA Iksan 570-080, Korea
2 농촌진흥청 연구정책국
2 Research Policy Bureau, RDA, Jeonju 560-500, Korea
© Tshe Korean Society of Breeding Science All rights reserved
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.
| Variety | N | Heading date | Culm length (cm) | Panicle length (cm) | No. of panicles per hill | No. of grains per panicle | Ratio of ripened grain (%) | Brown rice 1000 grain weight (g) |
|---|---|---|---|---|---|---|---|---|
|
|
||||||||
| Chindeul | 9 | Aug. 15 | 83 | 22 | 13 | 116 | 88.8 | 21.7 |
| Nampyeong | 9 | Aug. 14 | 80 | 21 | 13 | 104 | 87.1 | 21.1 |
| T-value | 16z | 0.53nsy | 1.18ns | 2.12ns | -0.31ns | 1.50ns | 0.32ns | 10ns |
| Variety | Appearance of wilting | Adult leaf senescence | Cold tolerancez | Viviparous germinationy (%) | Field lodging resistancex (1-9) | ||
|---|---|---|---|---|---|---|---|
|
|
|||||||
| Seeding stage (0-9) | Heading delay (days) | Grain fertility (%) | |||||
|
|
|||||||
| Chindeul | Strong | Late | 3 | 13 | 46 | 10.4 | 1 |
| Nampyeong | Strong | Late | 4 | 11 | 32 | 2.7 | 1 |
| Variety | No. of nursery based on reaction to leaf blast | Field test of neck blast | ||||||
|---|---|---|---|---|---|---|---|---|
|
|
||||||||
| Rz (0~3) | M (4~6) | S (7~9) | Ave. | Rate of disease panicle(%) | ||||
|
|
||||||||
| Icheon | Jecheon | Iksan | Milyang | |||||
|
|
||||||||
| Chindeul | 7 | 6 | 1 | 3.8 | 0.0 | 0.1 | 0.4 | 0.0 |
| Nampyeong | 5 | 9 | 0 | 3.6 | 0.7 | 0.0 | 1.0 | 0.0 |
| Variety | Bacterial blight | Virus disease (%) | Planthopper | ||||||
|---|---|---|---|---|---|---|---|---|---|
|
|
|
|
|||||||
| K1z | K2 | K3 | K3a | RSVy | RDV | RBSDV | BPHx | SBPH | |
|
|
|||||||||
| Chindeul | Rw | R | R | S | R(8.3) | S(80.0) | S(91.1) | R | S |
| Nampyeong | S | S | S | S | S(7.6) | R(8.4) | S(89.0) | S | S |
| Variety | N | Translucency (1-9) | White core/belly (0-9) | Amylose content (%) | Protein content (%) | Palatability of cooked rice (-3~+3) |
|---|---|---|---|---|---|---|
|
|
||||||
| Chindeul | 9 | 1 | 0/1 | 19.7 | 5.9 | 0.39 |
| Nampyeong | 9 | 1 | 0/0 | 19.7 | 6.9 | 0.18 |
| T-value | 16z | - | - | 0.00nsy | -3.52* | 15.3** |
| Variety | N | Brown rice recovery (%) | Milled/brown rice ratio (%) | Milling ratio (%) | Immature rice ratio (%) | Head rice recovery (%) | Milled rice recovery (%) |
|---|---|---|---|---|---|---|---|
|
|
|||||||
| Chindeul | 3 | 83.6 | 89.4 | 74.8 | 0.0 | 88.3 | 66.0 |
| Nampyeong | 3 | 82.7 | 89.8 | 74.2 | 0.0 | 91.3 | 67.7 |
| T-value | 7 z | 2.53nsy | -2.18ns | 0.88ns | - | -0.08ns | 0.04ns |
| Culture season | Region | No. of test sites | Milled rice(MT/ha) | Index | |
|---|---|---|---|---|---|
|
|
|||||
| Chindeul (A) | Nampyeong (B) | A/B | |||
|
|
|||||
| Ordinary planting | West-southern coast | 3 | 5.44 | 4.96 | 110 |
| Honam plain | 5 | 5.58 | 5.23 | 107 | |
| Youngnam plain | 4 | 5.87 | 5.44 | 108 | |
| Middle plain | 1 | 5.22 | 4.75y | 110 | |
|
|
|||||
| Mean | 13 | 5.61a | 5.20az | 108 | |
|
|
|||||
| Late planting | Honam plain | 1 | 4.78 | 4.98 | 96 |
|
|
|||||
| Double cropping | Youngnam plain | 1 | 5.13 | 4.89 | 105 |
DNA markers and restriction enzymes used to detect of R-genes against the brown planthopper, bacterial blight, and rice stripe virus.
| Marker | Resistance gene tagged | Restriction enzyme | Forward primer(5’-3’) | Reverse primer(5’-3’) |
|---|---|---|---|---|
|
|
||||
| Kpm2 | bph2 | Hinf I | TAAGATTGCCAAGAGAAATGTC | AATTCCGGCTTGGGCTGAGAAATG |
| 9643.T4 | Xa3 | Taqa I | AGCCGAGCAATGATACCGACA | ACAACTGGGATCGAACCGACA |
| Indel7 | Stv-bi | - | AAATTCCAATGCCCAAAACC | TCCTCATGGAGCTCATCCAA |
Major agronomic traits and yield components. (Iksan : ’10~’12)
| Variety | N | Heading date | Culm length (cm) | Panicle length (cm) | No. of panicles per hill | No. of grains per panicle | Ratio of ripened grain (%) | Brown rice 1000 grain weight (g) |
|---|---|---|---|---|---|---|---|---|
|
|
||||||||
| Chindeul | 9 | Aug. 15 | 83 | 22 | 13 | 116 | 88.8 | 21.7 |
| Nampyeong | 9 | Aug. 14 | 80 | 21 | 13 | 104 | 87.1 | 21.1 |
| T-value | 16 |
0.53ns |
1.18ns | 2.12ns | -0.31ns | 1.50ns | 0.32ns | 10ns |
zDegree of freedom of t-test with same variance (pooled variance)
yns, *, and ** indicate no significant, significant at P<0.05, and P<0.01, respectively
Reaction to environmental and physiological stress. (LAT : ’10~sss’12)
| Variety | Appearance of wilting | Adult leaf senescence | Cold tolerance |
Viviparous germination |
Field lodging resistance |
||
|---|---|---|---|---|---|---|---|
|
|
|||||||
| Seeding stage (0-9) | Heading delay (days) | Grain fertility (%) | |||||
|
|
|||||||
| Chindeul | Strong | Late | 3 | 13 | 46 | 10.4 | 1 |
| Nampyeong | Strong | Late | 4 | 11 | 32 | 2.7 | 1 |
zCold tolerance was evaluated at Chuncheon cold-water irrigated nursery
yGermination rate at 7th day after incubation (25°C)
xMean lodging degree under wet direct seeding of local adaptability test for 2010 to 2012
Reaction to leaf blast and neck blast. (LAT : ’10~’12)
| Variety | No. of nursery based on reaction to leaf blast | Field test of neck blast | ||||||
|---|---|---|---|---|---|---|---|---|
|
|
||||||||
| R |
M (4~6) | S (7~9) | Ave. | Rate of disease panicle(%) | ||||
|
|
||||||||
| Icheon | Jecheon | Iksan | Milyang | |||||
|
|
||||||||
| Chindeul | 7 | 6 | 1 | 3.8 | 0.0 | 0.1 | 0.4 | 0.0 |
| Nampyeong | 5 | 9 | 0 | 3.6 | 0.7 | 0.0 | 1.0 | 0.0 |
zR : Resistant, M : Moderate, S : Susceptible
Reaction to major disease and insect pest. (LAT : ’10~’12)
| Variety | Bacterial blight | Virus disease (%) | Planthopper | ||||||
|---|---|---|---|---|---|---|---|---|---|
|
|
|
|
|||||||
| K1 |
K2 | K3 | K3a | RSV |
RDV | RBSDV | BPH |
SBPH | |
|
|
|||||||||
| Chindeul | R |
R | R | S | R(8.3) | S(80.0) | S(91.1) | R | S |
| Nampyeong | S | S | S | S | S(7.6) | R(8.4) | S(89.0) | S | S |
zK1 : HB1013, K2 : HB1014, K3 : HB1015, K3a : HB1009
yRSV : Rice stripe virus, RDV : Rice dwarf virus, RBSDV : Rice black-streaked dwarf
xBPH : Brown planthopper, SBPH : Small brown planthopper
w)R : Resistant, M: Moderate, S: Susceptible
Grain quality and palatability properties of ‘Chindeul’. (LAT : ’10~’12)
| Variety | N | Translucency (1-9) | White core/belly (0-9) | Amylose content (%) | Protein content (%) | Palatability of cooked rice (-3~+3) |
|---|---|---|---|---|---|---|
|
|
||||||
| Chindeul | 9 | 1 | 0/1 | 19.7 | 5.9 | 0.39 |
| Nampyeong | 9 | 1 | 0/0 | 19.7 | 6.9 | 0.18 |
| T-value | 16 |
- | - | 0.00ns |
-3.52 |
15.3 |
zDegree of freedom of t-test with same variance (pooled variance)
yns, *, and ** indicate no significant, significant at P<0.05, and P<0.01, respectively
Milling properties of ‘Chindeul’. (LAT : ’12)
| Variety | N | Brown rice recovery (%) | Milled/brown rice ratio (%) | Milling ratio (%) | Immature rice ratio (%) | Head rice recovery (%) | Milled rice recovery (%) |
|---|---|---|---|---|---|---|---|
|
|
|||||||
| Chindeul | 3 | 83.6 | 89.4 | 74.8 | 0.0 | 88.3 | 66.0 |
| Nampyeong | 3 | 82.7 | 89.8 | 74.2 | 0.0 | 91.3 | 67.7 |
| T-value | 7 |
2.53ns |
-2.18ns | 0.88ns | - | -0.08ns | 0.04ns |
zDegree of freedom of t-test with same variance (pooled variance)
yns, *, and ** indicate no significant, significant at P<0.05, and P<0.01, respectively
Yield summary of local adaptability test. (LAT : ’10~’12)
| Culture season | Region | No. of test sites | Milled rice(MT/ha) | Index | |
|---|---|---|---|---|---|
|
|
|||||
| Chindeul (A) | Nampyeong (B) | A/B | |||
|
|
|||||
| Ordinary planting | West-southern coast | 3 | 5.44 | 4.96 | 110 |
| Honam plain | 5 | 5.58 | 5.23 | 107 | |
| Youngnam plain | 4 | 5.87 | 5.44 | 108 | |
| Middle plain | 1 | 5.22 | 4.75 |
110 | |
| Mean | 13 | 5.61 |
5.20 |
108 | |
| Late planting | Honam plain | 1 | 4.78 | 4.98 | 96 |
| Double cropping | Youngnam plain | 1 | 5.13 | 4.89 | 105 |
zThe Means with the same letter are not significantly different at P < 0.05 in the least significant difference test (LSD0.05)
yMiddle plain standard variety was Hwaseongbyeo
Degree of freedom of t-test with same variance (pooled variance)
ns, *, and ** indicate no significant, significant at P<0.05, and P<0.01, respectively
Cold tolerance was evaluated at Chuncheon cold-water irrigated nursery
Germination rate at 7th day after incubation (25°C)
Mean lodging degree under wet direct seeding of local adaptability test for 2010 to 2012
R : Resistant, M : Moderate, S : Susceptible
K1 : HB1013, K2 : HB1014, K3 : HB1015, K3a : HB1009
RSV : Rice stripe virus, RDV : Rice dwarf virus, RBSDV : Rice black-streaked dwarf
BPH : Brown planthopper, SBPH : Small brown planthopper
)R : Resistant, M: Moderate, S: Susceptible
Degree of freedom of t-test with same variance (pooled variance)
ns, *, and ** indicate no significant, significant at P<0.05, and P<0.01, respectively
Degree of freedom of t-test with same variance (pooled variance)
ns, *, and ** indicate no significant, significant at P<0.05, and P<0.01, respectively
The Means with the same letter are not significantly different at P < 0.05 in the least significant difference test (LSD0.05)
Middle plain standard variety was Hwaseongbyeo