농촌진흥청 국립식량과학원
농촌진흥청 국립원예특작과학원
National Institute of Crop Science, RDA, Wanju, 55365, Republic of Korea
National Institute of Horticultural and Herbal Science, RDA, Wanju, 55365, Republic of Korea
Copyright: © 2018 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.
| Variety | Heading date | Culm length (cm) | Panicle length (cm) | No. of panicles/hill | No. of spikelets/panicle | Ratio of ripened grain (%) | 1000-grain weight of brown rice (g) |
|---|---|---|---|---|---|---|---|
| Samkwang1 | Aug. 8 | 77* | 20ns | ns | 128* | 87.4ns | 21.7* |
| Hwaseong | Aug. 10 | 84 | 21 | 13 | 98 | 90.6 | 23.2 |
| Variety | Reaction to leaf blast at nursery test (0-9) | Area ratio to leaf lesion of Magnaporthe grisea of sequential plantings (%) | Reaction to neck blast (%) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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| No. of tested sites (14) | |||||||||||||
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| R z | M | S | Mean | 1 | 2 | 3 | 4 | 5 | Persistence (0-5) | No. of susceptible race (40) | Ichon | Iksan | |
| Samkwang1 | 4 | 9 | 1 | 4.4* | 80 | 55 | 80 | 80 | 40 | 5 | 23 | 0.5 | 9.7 |
| Hwaseong | 2 | 8 | 4 | 5.8 | 80 | 75 | 80 | 40 | 40 | 5 | 30 | 0.8 | 12.7 |
| Variety | Bacterial blight | Virus diseases | Resistance to insects | ||||||
|---|---|---|---|---|---|---|---|---|---|
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| K1 | K2 | K3 | K3a | Stripe (%) | Dwarf | Black- streak dwarf | BPH z | SBPH | |
| Samkwang1 | R y | R | R | S | R (23.0) | S | S | S | S |
| Hwaseong | S | S | S | S | R (23.3) | S | S | S | S |
| Variety | Premature heading (%) | Occurrence of wilting | Leaf senescence at maturing | Cold tolerance y | Viviparous w germination (%) | |||
|---|---|---|---|---|---|---|---|---|
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| Discol-oration (1-9) z | Heading delay (day) | Grain fertility (%) | PA x | |||||
| Samkwang1 | 0.0 | Strong | Late | 1 | 10ns | 23* | 7 | 2.1** |
| Hwaseong | 0.0 | Strong | Late | 1 | 9 | 53 | 6 | 21.4 |
zEvaluation at maximum tillering stage (1: tolerance; 9: susceptible)
yCold tolerance was evaluated in Chuncheon cold-water (17°C) irrigated nursery
xPhenotypic Acceptability
wGermination rate at 7 days after incubation in 25°C chamber
nsnot significant
*,**Significant at 5% and 1% level, respectively
| Variety | Plant z hight (cm) | Third internode length (cm) | Top fresh weight (g) | Breaking strength (g) | Moment (g.cm) | Lodging index | Lodging in the field (0~9) |
|---|---|---|---|---|---|---|---|
| Samkwang1 | 95* | 10.8 | 16.6* | 542** | 1,617 | 298 | 5 |
| Hwaseong | 104 | 10.1 | 13.5 | 360 | 1.423 | 394 | 3 |
| Variety | Milling recovery ratio (%) | Head rice milling recovery ratio (%) | |||
|---|---|---|---|---|---|
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|
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| Brown/rough | Milled/brown | Milled/rough | Head rice | ||
| Samkwang1 | 82.2ns | 91.0ns | 74.9ns | 94.2* | 70.5* |
| Hwaseong | 82.2 | 90.9 | 74.8 | 81.6 | 61.1 |
| Culture Season | Region | Tested sites | Average milled rice yield (MT/ha) | Index (A/B) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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| Samkwang1 | Hwaseong | ||||||||||
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| ’13 | ’14 | ’15 | Ave. (A) | ’13 | ’14 | ’15 | Ave. (B) | ||||
| Ordinary planting culture | Middle plain | Suwon | 568 | 605 | 567 | 580 | 507 | 549 | 542 | 533 | 109 |
| Hwaseong | 543 | 585 | 589 | 572 | 494 | 495 | 571 | 520 | 110 | ||
| Yeoju | 519 | 601 | 608 | 576 | 495 | 532 | 538 | 522 | 110 | ||
| Yeoncheon | 607 | 583 | 568 | 586 | 529 | 520 | 527 | 525 | 112 | ||
| Chuncheon | 587 | 633 | 596 | 605 | 575 | 558 | 597 | 577 | 105 | ||
| Cheongju | 541 | 574 | 513 | 543 | 501 | 506 | 587 | 498 | 109 | ||
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| Average | 561 | 597 | 574 | 577* | 517 | 527 | 544 | 529 | 109 | ||
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| SMP z | Boeun | 547 | 565 | 581 | 564 | 497 | 535 | 520 | 517 | 109 | |
| Jinan | 501 | 525 | 523 | 516 | 511 | 493 | 506 | 503 | 102 | ||
| Andong | 603 | 501 | 527 | 544 | 598 | 498 | 535 | 544 | 100 | ||
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| Average | 550 | 530 | 544 | 541ns | 535 | 509 | 520 | 521 | 104 | ||
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| ENC y | Yeongdeok | 589 | 693 | 566 | 616* | 527 | 608 | 505 | 547 | 113 | |
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| MWC x | Namyang | 397 | 575 | 452 | 475ns | 422 | 510 | 431 | 454 | 104 | |
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| Average | 546 | 585 | 554 | 562ns | 514 | 528 | 525 | 522 | 108 | ||
Major agronomic traits and yield components.
| Variety | Heading date | Culm length (cm) | Panicle length (cm) | No. of panicles/hill | No. of spikelets/panicle | Ratio of ripened grain (%) | 1000-grain weight of brown rice (g) |
|---|---|---|---|---|---|---|---|
| Samkwang1 | Aug. 8 | 77 |
20ns | ns | 128 |
87.4ns | 21.7 |
| Hwaseong | Aug. 10 | 84 | 21 | 13 | 98 | 90.6 | 23.2 |
*significant at 5%,
nsnot significant
Reaction to blast disease.
| Variety | Reaction to leaf blast at nursery test (0-9) | Area ratio to leaf lesion of Magnaporthe grisea of sequential plantings (%) | Reaction to neck blast (%) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
|||||||||||||
| No. of tested sites (14) | |||||||||||||
|
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|
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| R
|
M | S | Mean | 1 | 2 | 3 | 4 | 5 | Persistence (0-5) | No. of susceptible race (40) | Ichon | Iksan | |
| Samkwang1 | 4 | 9 | 1 | 4.4 |
80 | 55 | 80 | 80 | 40 | 5 | 23 | 0.5 | 9.7 |
| Hwaseong | 2 | 8 | 4 | 5.8 | 80 | 75 | 80 | 40 | 40 | 5 | 30 | 0.8 | 12.7 |
zR: resistant (0~3); M: moderately resistant (4~6); S: susceptible (7~9) N fertilizer: Blast nursery test = 240 kg/ha, Neck blast = 220 kg/ha
*significant at 5% level
Reaction to bacterial blight, virus disease and insect pests.
| Variety | Bacterial blight | Virus diseases | Resistance to insects | ||||||
|---|---|---|---|---|---|---|---|---|---|
|
|
|
|
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| K1 | K2 | K3 | K3a | Stripe (%) | Dwarf | Black- streak dwarf | BPH
|
SBPH | |
| Samkwang1 | R
|
R | R | S | R (23.0) | S | S | S | S |
| Hwaseong | S | S | S | S | R (23.3) | S | S | S | S |
zBPH: brown plant hopper; SBPH: small brown plant hopper.
yR: resistance, S: susceptible
Response to physiological and abiotic stresses.
| Variety | Premature heading (%) | Occurrence of wilting | Leaf senescence at maturing | Cold tolerance
|
Viviparous
|
|||
|---|---|---|---|---|---|---|---|---|
|
|
||||||||
| Discol-oration (1-9)
|
Heading delay (day) | Grain fertility (%) | PA
|
|||||
| Samkwang1 | 0.0 | Strong | Late | 1 | 10ns | 23 |
7 | 2.1 |
| Hwaseong | 0.0 | Strong | Late | 1 | 9 | 53 | 6 | 21.4 |
zEvaluation at maximum tillering stage (1: tolerance; 9: susceptible)
yCold tolerance was evaluated in Chuncheon cold-water (17°C) irrigated nursery
xPhenotypic Acceptability
wGermination rate at 7 days after incubation in 25°C chamber
nsnot significant
*,**Significant at 5% and 1% level, respectively
Some characteristics related with lodging.
| Variety | Plant
|
Third internode length (cm) | Top fresh weight (g) | Breaking strength (g) | Moment (g.cm) | Lodging index | Lodging in the field (0~9) |
|---|---|---|---|---|---|---|---|
| Samkwang1 | 95 |
10.8 | 16.6 |
542 |
1,617 | 298 | 5 |
| Hwaseong | 104 | 10.1 | 13.5 | 360 | 1.423 | 394 | 3 |
zlength from upper part of root up to panicle
*,**Significant at 5% and 1% level, respectively
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 | ||||||
| Samkwang1 | 4.91 | 2.77 | 1.77 | 0/0 | 6.2ns | 6.2ns | 18.9ns | 0.35 |
| Hwaseong | 5.09 | 2.84 | 1.80 | 0/1 | 6.5 | 6.6 | 19.7 | -0.08 |
nsnot significant
Characteristics related to milling quality.
| Variety | Milling recovery ratio (%) | Head rice milling recovery ratio (%) | |||
|---|---|---|---|---|---|
|
|
|||||
| Brown/rough | Milled/brown | Milled/rough | Head rice | ||
| Samkwang1 | 82.2ns | 91.0ns | 74.9ns | 94.2 |
70.5 |
| Hwaseong | 82.2 | 90.9 | 74.8 | 81.6 | 61.1 |
*significant at 5% level
nsnot significant
Results of yield potential of ‘Samkwang1’ on local adaptability test.
| Culture Season | Region | Tested sites | Average milled rice yield (MT/ha) | Index (A/B) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
|||||||||||
| Samkwang1 | Hwaseong | ||||||||||
|
|
|
||||||||||
| ’13 | ’14 | ’15 | Ave. (A) | ’13 | ’14 | ’15 | Ave. (B) | ||||
| Ordinary planting culture | Middle plain | Suwon | 568 | 605 | 567 | 580 | 507 | 549 | 542 | 533 | 109 |
| Hwaseong | 543 | 585 | 589 | 572 | 494 | 495 | 571 | 520 | 110 | ||
| Yeoju | 519 | 601 | 608 | 576 | 495 | 532 | 538 | 522 | 110 | ||
| Yeoncheon | 607 | 583 | 568 | 586 | 529 | 520 | 527 | 525 | 112 | ||
| Chuncheon | 587 | 633 | 596 | 605 | 575 | 558 | 597 | 577 | 105 | ||
| Cheongju | 541 | 574 | 513 | 543 | 501 | 506 | 587 | 498 | 109 | ||
|
|
|||||||||||
| Average | 561 | 597 | 574 | 577 |
517 | 527 | 544 | 529 | 109 | ||
|
|
|||||||||||
| SMP
|
Boeun | 547 | 565 | 581 | 564 | 497 | 535 | 520 | 517 | 109 | |
| Jinan | 501 | 525 | 523 | 516 | 511 | 493 | 506 | 503 | 102 | ||
| Andong | 603 | 501 | 527 | 544 | 598 | 498 | 535 | 544 | 100 | ||
|
|
|||||||||||
| Average | 550 | 530 | 544 | 541ns | 535 | 509 | 520 | 521 | 104 | ||
|
|
|||||||||||
| ENC
|
Yeongdeok | 589 | 693 | 566 | 616 |
527 | 608 | 505 | 547 | 113 | |
|
|
|||||||||||
| MWC
|
Namyang | 397 | 575 | 452 | 475ns | 422 | 510 | 431 | 454 | 104 | |
|
|
|||||||||||
| Average | 546 | 585 | 554 | 562ns | 514 | 528 | 525 | 522 | 108 | ||
zSMP: South middle plain area
yMWC: Mid-west coastal area
xENC: East-north coastal area
nsnot significant
*significant at 5% level
significant at 5%,
nsnot significant
R: resistant (0~3); M: moderately resistant (4~6); S: susceptible (7~9) N fertilizer: Blast nursery test = 240 kg/ha, Neck blast = 220 kg/ha
significant at 5% level
BPH: brown plant hopper; SBPH: small brown plant hopper.
R: resistance, S: susceptible
Evaluation at maximum tillering stage (1: tolerance; 9: susceptible)
Cold tolerance was evaluated in Chuncheon cold-water (17°C) irrigated nursery
Phenotypic Acceptability
Germination rate at 7 days after incubation in 25°C chamber
nsnot significant
Significant at 5% and 1% level, respectively
length from upper part of root up to panicle
Significant at 5% and 1% level, respectively
nsnot significant
significant at 5% level
nsnot significant
SMP: South middle plain area
MWC: Mid-west coastal area
ENC: East-north coastal area
nsnot significant
significant at 5% level