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Copyright: © 2019 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.
Summary of the heading date evaluated during three-year local adaptability trials (2012–2014).
| Season (no.) |
Region |
Trial site | Heading date (mm.dd) |
A-B | Seeding (mm.dd) |
Transplanting (mm.dd) |
|
|---|---|---|---|---|---|---|---|
| Baegilmi (A) | Check |
||||||
| Ordinary planting (5) | MDP | Hwaseong | 7.16 | 8.07hs | -22 | 4.25 | 5.25 |
| Yeoju | 7.15 | 8.08hs | -24 | 4.25 | 5.25 | ||
| Cheongweon | 7.09 | 8.02hs | -24 | 4.25 | 5.25 | ||
| Mean | 7.13 | 8.06hs | -23 | ||||
| MMP | Cheolweon | 7.14 | 7.24od | -10 | 4.20 | 5.20 | |
| NEC | Gangreung | 7.20 | 7.28od | -8 | 4.20 | 5.20 | |
| Grand Mean | 7.14 | 8.06hs | -23 | ||||
| 7.26od | -9 | ||||||
| Early Planting (2) | HNP | Iksan | 7.06 | 7.12jp | -7 | 4.10 | 5.10 |
| Naju | 7.06 | 7.14jp | -8 | 4.10 | 5.10 | ||
| Grand Mean | 7.06 | 7.13jp | -8 | ||||
| Late Planting (2) | MDP | Suweon | 8.15 | 8.25go | -10 | 6.10 | 7.01 |
| HNP | Iksan | 8.14 | 8.25go | -12 | 6.15 | 7.10 | |
| Grand Mean | 8.14 | 8.25go | -11 | ||||
zThe total numbers of trial sites for each culture season are indicated in parenthesis.
yRegions are middle plane (MDP), mid-north middle plain (MMP), north-east coastal (NEC), and Honam plane (HNP).
xCheck varieties for each trial site are indicated as superscripted abbreviation with the heading date; ‘Hwaseong’ (hs), ‘Odae’ (od), ‘Jopyeong’ (jp), and ‘Geumo’ (go).
Major agronomic traits and yield components of ‘Baegilmi’ along with the check variety, ‘Hwaseong’
| Variety | Heading date (mm.dd) | Culm Length (cm) | Panicle Length (cm) | No. of Panicles /hill |
No. of Spikelets /panicle |
Ratio of ripenedgrain (%) | 1,000-grain weight of brown rice (g) |
|---|---|---|---|---|---|---|---|
| Baegilmi | 7.18 |
75 |
21 |
12 |
80 |
90.4 |
20.6 |
| Hwaseong | 8.10 | 85 | 21 | 14 | 94 | 87.1 | 23.0 |
zThe overall means of three-year local adaptability trials (2012–2014) conducted in ‘Suweon’.
nsNot significant in the t-test.
*,**Significant at p<0.05 and p<0.01, respectively.
Resistance reactions to blast disease.
| Variety | Reaction to leaf blast at blast nursery tests |
Area ratio of leaf lesion of Magnaporthe grisea during sequential plantings (%) |
Reaction to neck blast (%) |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of tested sites (14) | 1 | 2 | 3 | 4 | 5 | Resistance (0~5) | No of virulent isolates (30) | Jecheon | Iksan | ||||
| R (0~3) |
M (4~6) |
S (7~9) |
Mean | ||||||||||
| Baegilmi | 10 | 4 | 0 | 3.8 | 5 | 1 | 1 | 0 | 0 | 0 | 1 | 0.2 | 0.0 |
| Hwaseong | 1 | 8 | 5 | 5.7 | 90 | 35 | 15 | 70 | 55 | 5 | 17 | 13.8 | 11.6 |
zN fertilization of blast nursery tests conducted in 2012–2014: 240 kg/ha.
yDurability against co-infection of 30 M. grisea isolates during sequential plantings in 2014 (Kim et al. 2004).
xN fertilization of neck blast tests conducted in 2012–2014: 220 kg/ha.
R: resistant, M: moderately resistant, S: susceptible.
Reaction to bacterial blight, virus disease and insect pests evaluated in 2012–2014.
| Variety | Bacterial blight | Viral diseases | Resistance to insects |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|
| K1 | K2 | K3 | K3a | Stripe (%) | Dwarf | Black-streak dwarf | BPH | WBPH | SBPH | |
| Baegilmi | S | S | S | S | S (86.9) | S | S | S | S | S |
| Hwaseong | S | S | S | S | R (22.1) | S | S | S | S | S |
zBPH: brown planthopper; WBPH: white-backed planthopper; SBPH: small brown planthopper
R: resistant, S: susceptible.
Response to physiological and abiotic stresses evaluated in 2012–2014.
| Variety | Premature Heading (%) | Occurrence of wilting | Leaf Senescence at maturing | Cold tolerance |
Viviparous germination |
|||
|---|---|---|---|---|---|---|---|---|
| Leaf discoloration (1~9) |
Heading Delay (day) | Grain fertility (%) | Phenotypic Acceptability (1~9) |
|||||
| Baegilmi | 60.0 | Tolerant | Slow | 1 | 10 | 67.9 |
4 | 17.6 |
| Hwaseong | 0.0 | Tolerant | Slow | 1 | 9 | 58.8 | 5 | 17.6 |
zCold tolerance was evaluated using cold-water (17℃) irrigation nursery at Chuncheon substation, NICS.
yEvaluation at maximum tillering stage (1: tolerant; 9: susceptible).
xGermination rate under water saturated incubation (17℃) for 7 days on the panicle at 40 days after pollination.
nsNot significant in the t-test.
*.**Significant at p<0.05 and p<0.01, respectively.
Culm characteristics related to lodging evaluated in 2014
| Variety | Culm Length (cm) | Length of 3rd internode (cm) | Breaking resistance |
Fresh weight of upper portion (g) | Lodging Index |
|---|---|---|---|---|---|
| Baegilmi | 69 | 14 | 943 | 11.4 | 111 |
| Hwaseong | 88 | 14 | 1,312 | 14.2 | 117 |
zEvaluated under ordinary transplanting nursery condition, and the evaluation methods was based on Kim et al. (2000).
yBreaking resistance of the middle point of the 3rd internode with leaf sheath.
xBending moment / Breaking resistance × 100.
Characteristics related to grain shape and quality evaluated in 2012–2014.
| Variety | Brown rice | Trans- Lucency (1~9) | White belly/core (0~9) | Alkali digestive value (1~7) | Protein content (%) | Amylose content (%) | Palatability of cooked rice (-3~+3) | ||
|---|---|---|---|---|---|---|---|---|---|
| Length (mm) | Width (mm) | L/W ratio | |||||||
| Baegilmi | 5.06 |
2.64 |
1.92 |
1 | 1/0 | 6.4 | 8.4 |
18.6 |
-0.33 |
| Hwaseong | 5.03 | 2.81 | 1.81 | 1 | 0/0 | 6.5 | 6.7 | 19.6 | 0.18 |
nsNot significant in the t-test
*,**Significant at p<0.05 and p<0.01, respectively.
Characteristics related to milling quality evaluated in 2014.
| Variety | Milling recovery ratio (%) | Head rice milling recovery ratio (%) | |||
|---|---|---|---|---|---|
| Brown/rough | Milled/brown | Milled/rough | Head rice | ||
| Baegilmi |
80.6 | 90.0 | 72.8 | 80.0 | 58.3 |
| Hwaseong | 83.0 | 91.6 | 76.0 | 96.8 | 73.6 |
| Baegilmi |
82.4 | 91.5 | 75.3 | 96.7 | 72.8 |
zOrdinary season planting in Suweon (Transplanting: May 23, Heading: Jul 16, Harvest: Sep 15)
yLate season planting in Suweon (Transplanting: Jul 12, Heading: Aug 22, Harvest: Oct 5)
nsNot significant in the t-test
*,**Significant at p<0.05 and p<0.01, respectively.
Summary of the yield potential evaluated during three-year local adaptability trials (2012–2014).
| Season |
Region |
Trial site | Milled rice yield (MT/ha) | Index (A/B) 100 |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Baegilmi (A) | Check variety |
|||||||||||||
| 2012 | 2013 | 2014 | Mean | 2012 | 2013 | 2014 | Mean | 2012 | 2013 | 2014 | Mean | |||
| Ordinary planting (5) | MDP | Hwaseong | 4.53 | 3.90 | 4.23 | 4.22 | 5.32 | 4.94 | 4.95 | 5.07hs | 85 | 79 | 86 | 83 |
| Yeoju | 4.32 | 3.64 | 4.36 | 4.11 | 5.10 | 4.95 | 5.32 | 5.12hs | 85 | 73 | 82 | 80 | ||
| Cheongweon | 4.64 | 4.09 | 4.13 | 4.28 | 5.02 | 5.01 | 5.06 | 5.03hs | 92 | 82 | 82 | 85 | ||
| Mean | 4.50 | 3.88 | 4.24 | 4.20 | 5.15 | 4.97 | 5.11 | 5.07hs | 87 | 78 | 83 | 83 | ||
| MMP | Cheolweon | 5.05 | 4.49 | 5.50 | 5.01 | 5.23 | 4.58 | 5.80 | 5.21od | 96 | 98 | 95 | 96 | |
| NEC | Gangreung | - | 4.97 | 5.58 | 5.27 | - | 4.97 | 5.44 | 5.21od | - | 100 | 102 | 101 | |
| Grand Mean | 4.63 | 4.22 | 4.76 | 4.53 | 5.15 | 4.97 | 5.11 | 5.07hs | 87 | 78 | 83 | 83 | ||
| 5.23 | 4.78 | 5.62 | 5.21od | 96 | 99 | 99 | 98 | |||||||
| Early planting (2) | HNP | Iksan | 4.46 | 4.10 | - | 4.28 | 4.95 | 5.05 | - | 5.00jp | 90 | 81 | - | 86 |
| Naju | - | 4.15 | 4.63 | 4.39 | - | 5.63 | 5.31 | 5.47jp | - | 74 | 87 | 80 | ||
| Grand Mean | 4.46 | 4.13 | 4.63 | 4.34 | 4.95 | 5.34 | 5.31 | 5.24jp | 90 | 77 | 87 | 83 | ||
| Late planting (2) | MDP | Suweon | - | 3.12 | 4.04 | 3.58 | - | 4.32 | 4.94 | 4.63go | - | 72 | 82 | 77 |
| HNP | Iksan | - | 3.35 | 4.92 | 4.24 | - | 4.82 | 5.15 | 4.99go | - | 74 | 95 | 85 | |
| Grand Mean | - | 3.34 | 4.48 | 3.91 | - | 4.57 | 5.05 | 4.81go | - | 73 | 89 | 81 | ||
zThe total numbers of trial sites for each culture season are indicated in parenthesis.
yRegions are middle plane (MDP), mid-north middle plain (MMP), north-east coastal (NEC), and Honam plane (HNP).
xCheck varieties for each trial site are indicated as superscripted abbreviation with the mean milled rice yield; ‘Hwaseong’ (hs), ‘Odae’ (od), ‘Jopyeong’ (jp), and ‘Geumo’ (go).
The total numbers of trial sites for each culture season are indicated in parenthesis.
Regions are middle plane (MDP), mid-north middle plain (MMP), north-east coastal (NEC), and Honam plane (HNP).
Check varieties for each trial site are indicated as superscripted abbreviation with the heading date; ‘Hwaseong’ (hs), ‘Odae’ (od), ‘Jopyeong’ (jp), and ‘Geumo’ (go).
The overall means of three-year local adaptability trials (2012–2014) conducted in ‘Suweon’.
Not significant in the t-test.
Significant at p<0.05 and p<0.01, respectively.
N fertilization of blast nursery tests conducted in 2012–2014: 240 kg/ha.
Durability against co-infection of 30 M. grisea isolates during sequential plantings in 2014 (
N fertilization of neck blast tests conducted in 2012–2014: 220 kg/ha.
R: resistant, M: moderately resistant, S: susceptible.
BPH: brown planthopper; WBPH: white-backed planthopper; SBPH: small brown planthopper
R: resistant, S: susceptible.
Cold tolerance was evaluated using cold-water (17℃) irrigation nursery at Chuncheon substation, NICS.
Evaluation at maximum tillering stage (1: tolerant; 9: susceptible).
Germination rate under water saturated incubation (17℃) for 7 days on the panicle at 40 days after pollination.
Not significant in the t-test.
*.**Significant at p<0.05 and p<0.01, respectively.
Evaluated under ordinary transplanting nursery condition, and the evaluation methods was based on
Breaking resistance of the middle point of the 3rd internode with leaf sheath.
Bending moment / Breaking resistance × 100.
Not significant in the t-test
Significant at p<0.05 and p<0.01, respectively.
Ordinary season planting in Suweon (Transplanting: May 23, Heading: Jul 16, Harvest: Sep 15)
Late season planting in Suweon (Transplanting: Jul 12, Heading: Aug 22, Harvest: Oct 5)
nsNot significant in the t-test
*,**Significant at p<0.05 and p<0.01, respectively.
The total numbers of trial sites for each culture season are indicated in parenthesis.
Regions are middle plane (MDP), mid-north middle plain (MMP), north-east coastal (NEC), and Honam plane (HNP).
Check varieties for each trial site are indicated as superscripted abbreviation with the mean milled rice yield; ‘Hwaseong’ (hs), ‘Odae’ (od), ‘Jopyeong’ (jp), and ‘Geumo’ (go).
