1농촌진흥청 국립식량과학원 남부작물부
2농촌진흥청 국립식량과학원 상주출장소
3농촌진흥청
4농촌진흥청 국립식량과학원
1Department of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration, Miryang, 50424, Republic of Korea
2Sangju Branch, National Institute of Crop Science, Rural Development Administration, Sangju, 37139, Republic of Korea
3Rural Development Administration, Jeonju, 54875, Republic of Korea
4National Institute of Crop Science, Rural Development Administration, Jeonju, 55365, Republic of Korea
Copyright © 2024 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 |
Culm length (cm) |
Panicle length (cm) |
Panicle number per plant | Spikelet number per panicle |
Ripened grain percentage (%) |
Thousand grain weight(g) | |
|---|---|---|---|---|---|---|---|
|
|
|||||||
| Paddy rice | Brown rice | ||||||
| MY362VP | 73** | 19ns | 19 | 79** | 80.1** | 27.6ns | 21.9* |
| Jopyeong | 77 | 20 | 17 | 105 | 71.3 | 25.7 | 20.0 |
| Variety | Reaction to leaf blast field test (N-24 kg/10a) |
Reaction to panicle blast field test (N-22 kg/10a) |
Number of compatible races of Piricularia griseay |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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| Number of tested sites depending on reaction | Avr. | Resistance level in major test region | ||||||||||||
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|
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| Rz (0~3) |
M (4~6) |
S (7~9) |
M iryang |
Yesan | Naju | Jeonju | Infection rate(%) | |||||||
|
|
||||||||||||||
| Jeonju | Miryang | Yeoju | Jinju | |||||||||||
| MY362VP | 0 | 8 | 3 | 5.3** | 5.5 | 6.0 | 4.0 | 7.7 | 5.8 | 0.7 | 8.7 | 0.0 | 17 | |
| Jopyeong | 6 | 4 | 1 | 2.0 | 2.0 | 1.0 | 0.3 | 2.0 | 57.2 | 0.1 | 18.4 | 0.1 | 0 | |
| Variety | Bacterial blight |
Viral diseases (Incidence rate, %) |
Reaction to planthopper | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
|
|
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| K1 | K2 | K3 | K3a | Field | RSVz | Dwarf | Brown planthopper | Small brown planthopper | |||
| MY362VP | R | R | R | S | R | R(6.8) | S(92.8) | S | S | ||
| Jopyeong | R | R | R | S | S | R(11.7) | S(100.0) | S | S | ||
| Variety | Cold tolerancez | Rate of viviparous germinationx (40 days after heading, %) | ||
|---|---|---|---|---|
|
|
||||
|
Heading delay (day) |
Fertility (%) |
PAy (1~9) | ||
| MY362VP | 14.7ns | 32.8ns | 7ns | 1.9** |
| Jopyeong | 15.3 | 35.6 | 6 | 19.0 |
| Variety |
Culm length (cm) |
3rd internode length (cm) |
Breaking strength (g) |
Total fresh shoot weight (g) |
Lodging index |
Lodging in the fieldz (1~9) |
|---|---|---|---|---|---|---|
| MY362VP | 82.0 | 14.5 | 891 | 13.5 | 154 | 3.0 |
| Jopyeong | 82.0 | 16.4 | 758 | 14.4 | 194 | 3.7 |
| Variety |
Transparency (1~9) |
White core/belly (0~9) |
Alkali digestive value (1~7) |
Protein content (%) |
Amylose content (%) |
Toyo Medo-meter test result |
Palatability of cooked rice (-3~+3) |
|---|---|---|---|---|---|---|---|
| MY362VP | 1 | 0/0 | 5.9ns | 7.3** | 18.0ns | 70.6ns | 0.0 |
| Jopyeong | 1 | 0/0 | 5.7 | 5.7 | 18.7 | 70.8 | check |
| Variety | Length/Width |
Brown rice/ Paddy rice (%) |
Milled rice/ Brown rice (%) |
Milled rice/ Paddy rice (%) |
Chalky grain (%) |
Broken grain (%) |
Damaged grain (%) |
Head rice (%) |
Head rice / Paddy rice (%) |
|
|---|---|---|---|---|---|---|---|---|---|---|
|
|
||||||||||
| Paddy rice | Brown rice | |||||||||
| MY362VP | 2.14 | 1.95 | 82.4 | 88.0* | 72.5ns | 7.7 | 1.1 | 0.6 | 90.6** | 65.7** |
| Jopyeong | 2.12 | 1.81 | 82.2 | 92.0 | 75.6 | 8.3 | 10.3 | 13.7 | 62.1 | 46.9 |
| Year | 2020 | 2021 | 2022 |
|
|
|||
| Temperature(℃) | 25.0 | 27.7 | 28.0 |
| Variety | Cultivation Season | Milled rice yield(kg/10a) | Harvest Index |
|---|---|---|---|
| MY362VP | Normal transplanting | 407 | 87 |
| Jopyeong | Normal transplanting | 459 | 100 |
| Geumo | Normal transplanting | 436 | 95 |
| Variety | Cultivation Season | Milled rice yield(kg/10a) | Harvest Index | ||
|---|---|---|---|---|---|
|
|
|||||
| 2019 | 2020 | Average | |||
| MY362VP | Early transplanting | 563 | 561 | 562ns | 96 |
| Jopyeong | Early transplanting | 594 | 574 | 584 | 100 |
| MY362VP | Late transplanting | 405 | 459 | 432** | 112 |
| Geumo | Late transplanting | 351 | 420 | 386 | 100 |
Schedule of nursing and heading date of ‘MY362VP’.
| Cultivation type | Region | Number of sites | Heading date | Date of sowing | Date of transplanting | |
|---|---|---|---|---|---|---|
| MY362VP | Jopyeong | |||||
| Early planting |
Yeongnam plain | 2 | Jul.14 | Jul.13 | Apr.10 | May.10 |
| Honam plain | 2 | Jul.14 | Jul.13 | Apr.10 | May.10 | |
| Jungbu plain | 1 | Jul.19 | Jul.18 | Apr.10 | May.10 | |
| Average(total) | (5) | Jul.15 | Jul.13 | Apr.10 | May.10 | |
Major agronomic traits and yield components in Miryang during 2020~2022.
| Variety | Culm length (cm) |
Panicle length (cm) |
Panicle number per plant | Spikelet number per panicle | Ripened grain percentage (%) |
Thousand grain weight(g) | |
|---|---|---|---|---|---|---|---|
| Paddy rice | Brown rice | ||||||
| MY362VP | 73** | 19ns | 19 | 79** | 80.1** | 27.6ns | 21.9* |
| Jopyeong | 77 | 20 | 17 | 105 | 71.3 | 25.7 | 20.0 |
Blast resistance test result of ‘MY362VP’.
| Variety | Reaction to leaf blast field test (N-24 kg/10a) | Reaction to panicle blast field test (N-22 kg/10a) |
Number of compatible races of Piricularia griseay |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of tested sites depending on reaction | Avr. | Resistance level in major test region | ||||||||||||
| Rz (0~3) | M (4~6) |
S (7~9) |
M iryang |
Yesan | Naju | Jeonju | Infection rate(%) | |||||||
| Jeonju | Miryang | Yeoju | Jinju | |||||||||||
| MY362VP | 0 | 8 | 3 | 5.3** | 5.5 | 6.0 | 4.0 | 7.7 | 5.8 | 0.7 | 8.7 | 0.0 | 17 | |
| Jopyeong | 6 | 4 | 1 | 2.0 | 2.0 | 1.0 | 0.3 | 2.0 | 57.2 | 0.1 | 18.4 | 0.1 | 0 | |
Resistance to bacterial blight and viral diseases in ‘MY362VP’.
| Variety | Bacterial blight | Viral diseases (Incidence rate, %) |
Reaction to planthopper | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| K1 | K2 | K3 | K3a | Field | RSVz | Dwarf | Brown planthopper | Small brown planthopper | |||
| MY362VP | R | R | R | S | R | R(6.8) | S(92.8) | S | S | ||
| Jopyeong | R | R | R | S | S | R(11.7) | S(100.0) | S | S | ||
Tolerance of cold stress and viviparous germination of ‘MY362VP’.
| Variety | Cold tolerancez | Rate of viviparous germinationx (40 days after heading, %) | ||
|---|---|---|---|---|
| Heading delay (day) |
Fertility (%) |
PAy (1~9) | ||
| MY362VP | 14.7ns | 32.8ns | 7ns | 1.9** |
| Jopyeong | 15.3 | 35.6 | 6 | 19.0 |
Characteristics of ‘MY362VP’ related to lodging.
| Variety | Culm length (cm) |
3rd internode length (cm) |
Breaking strength (g) |
Total fresh shoot weight (g) |
Lodging index |
Lodging in the fieldz (1~9) |
|---|---|---|---|---|---|---|
| MY362VP | 82.0 | 14.5 | 891 | 13.5 | 154 | 3.0 |
| Jopyeong | 82.0 | 16.4 | 758 | 14.4 | 194 | 3.7 |
Characteristics of ‘MY362VP’ related to palatability and quality.
| Variety | Transparency (1~9) |
White core/belly (0~9) |
Alkali digestive value (1~7) |
Protein content (%) |
Amylose content (%) |
Toyo Medo-meter test result | Palatability of cooked rice (-3~+3) |
|---|---|---|---|---|---|---|---|
| MY362VP | 1 | 0/0 | 5.9ns | 7.3** | 18.0ns | 70.6ns | 0.0 |
| Jopyeong | 1 | 0/0 | 5.7 | 5.7 | 18.7 | 70.8 | check |
Milling characteristics of ‘MY362VP’.
| Variety | Length/Width | Brown rice/ Paddy rice (%) |
Milled rice/ Brown rice (%) |
Milled rice/ Paddy rice (%) |
Chalky grain (%) |
Broken grain (%) |
Damaged grain (%) |
Head rice (%) |
Head rice / Paddy rice (%) |
|
|---|---|---|---|---|---|---|---|---|---|---|
| Paddy rice | Brown rice | |||||||||
| MY362VP | 2.14 | 1.95 | 82.4 | 88.0* | 72.5ns | 7.7 | 1.1 | 0.6 | 90.6** | 65.7** |
| Jopyeong | 2.12 | 1.81 | 82.2 | 92.0 | 75.6 | 8.3 | 10.3 | 13.7 | 62.1 | 46.9 |
Average temperature 30 days after heading.
| Year | 2020 | 2021 | 2022 |
| Temperature(℃) | 25.0 | 27.7 | 28.0 |
Result of observational yield trial in Miryang.
| Variety | Cultivation Season | Milled rice yield(kg/10a) | Harvest Index |
|---|---|---|---|
| MY362VP | Normal transplanting | 407 | 87 |
| Jopyeong | Normal transplanting | 459 | 100 |
| Geumo | Normal transplanting | 436 | 95 |
Result of regional yield trial in Miryang.
| Variety | Cultivation Season | Milled rice yield(kg/10a) | Harvest Index | ||
|---|---|---|---|---|---|
| 2019 | 2020 | Average | |||
| MY362VP | Early transplanting | 563 | 561 | 562ns | 96 |
| Jopyeong | Early transplanting | 594 | 574 | 584 | 100 |
| MY362VP | Late transplanting | 405 | 459 | 432** | 112 |
| Geumo | Late transplanting | 351 | 420 | 386 | 100 |
ns: not significant, **: significant at p<0.01
Result of yield trial in local adaptability test.
| Culture season | Region | Average milled rice yield of ‘Jopyeong’ | Average milled rice yield of ‘MY362VP’(kg/10a) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | 2021 | 2022 | Average | Harvest Index | Range | ||||
| Early transplanting | Yeongnam plain | 507 | 526 | 569 | 556 | 550 | 108 | 465~614 | |
| Honam plain | 544 | 509 | 594 | 475 | 526 | 97 | 463~622 | ||
| Jungbu plain | 487 | 428 | 616 | 441 | 495 | 102 | 428~616 | ||
| Average | 518 | 499 | 588 | 500 | 529ns | 102 | 499~588 | ||
ns: not significant
*: significant at p<0.05, **: significant at p<0.01, ns : not significant
zR: Resistant, M: Moderate, S: Susceptible
yInoculation of 30 representative domestic strains (2022, local adaptability test)
Avr.: Average of reaction to leaf blast field test, **: significant at p<0.01
zTest conducted at seedling stage with molecular marker test
zCold water treatment in Chuncheon (17℃, 20 days after transplanting ~ fully ripening stage), ns: not significant
yPhenotypic acceptability at fully ripening stage
xresult after 7-day treatment, **: significant at p<0.01
zTest in field condition, high level of fertilizer (N-P2O5-K2O: 18-9-11 kg/10a)
ns: not significant, **: significant at p<0.01
ns: not significant, *: significant at p<0.05, **: significant at p<0.01
ns: not significant, **: significant at p<0.01
ns: not significant