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New Cultivar Developed

통일형 벼 ‘신광’ 유래 키다리병 저항성 유전자 보유 ‘MY299BK’ 육성

조수민1, 이샛별1, 허연재1, 이지윤1, 조준현1, 박노봉1, 신동진1, 이종희1, 손영보2, 한상익3, 오성환1, 송유천1, 박동수1,*

Development of ‘MY299BK’, a Cultivar Resistant to Bakanae Disease Harboring qBK1 Gene Derived From a Tong-il Type Rice ‘Shingwang’

Korean Journal of Breeding Science 2020;52(2):172-178.
Published online: June 1, 2020

1국립식량과학원 남부작물부 논이용작물과

2경상북도농업기술원 기술보급과

3국립식량과학원 남부작물부 밭작물개발과

1Paddy Crop Research Division NICS, RDA, Milyang 50424, Republic of Korea

2Technical Support Department, Gyeongsangbukdo Agricultural Research & Extension Services, Daegu 41404, Republic of Korea

3Upland Crop Research Division NICS, RDA, Milyang 50424, Republic of Korea

* Corresponding Author (E-mail: parkds9709@korea.kr, Tel: +82-55-350-1184, Fax: +82-55-352-3059)
• Received: March 24, 2020   • Revised: March 31, 2020   • Accepted: April 9, 2020

Copyright © 2020 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.

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Citations

Citations to this article as recorded by  Crossref logo
  • Current Studies on Bakanae Disease in Rice: Host Range, Molecular Identification, and Disease Management
    Yu Na An, Chandrasekaran Murugesan, Hyowon Choi, Ki Deok Kim, Se-Chul Chun
    Mycobiology.2023; 51(4): 195.     CrossRef
  • Past and Future Epidemiological Perspectives and Integrated Management of Rice Bakanae in Korea
    Soobin Shin, Hyunjoo Ryu, Jin-Yong Jung, Yoon-Ju Yoon, Gudam Kwon, Nahyun Lee, Na Hee Kim, Rowoon Lee, Jiseon Oh, Minju Baek, Yoon Soo Choi, Jungho Lee, Kwang-Hyung Kim
    The Plant Pathology Journal.2023; 39(1): 1.     CrossRef
  • Various Methods for Controlling the Bakanae Disease in Rice
    Li Fang Jing, Haruhisa Suga
    Reviews in Agricultural Science.2021; 9: 195.     CrossRef

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Development of ‘MY299BK’, a Cultivar Resistant to Bakanae Disease Harboring qBK1 Gene Derived From a Tong-il Type Rice ‘Shingwang’
Korean. J. Breed. Sci.. 2020;52(2):172-178.   Published online June 1, 2020
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Development of ‘MY299BK’, a Cultivar Resistant to Bakanae Disease Harboring qBK1 Gene Derived From a Tong-il Type Rice ‘Shingwang’
Korean. J. Breed. Sci.. 2020;52(2):172-178.   Published online June 1, 2020
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Development of ‘MY299BK’, a Cultivar Resistant to Bakanae Disease Harboring qBK1 Gene Derived From a Tong-il Type Rice ‘Shingwang’
Image Image Image Image
Fig. 1 Pedigree diagram of ‘MY299BK’.
Fig. 2 Generation diagram of ‘MY299BK’.
Fig. 3 Allele type of ‘MY299BK’ using a SSR marker RM9 related to bakanae disease resistance.
Fig. 4 Level of reistance of ‘MY299BK’ under artificial infection of G. fujikuroi iisolate CF283 in seedling stage.
Development of ‘MY299BK’, a Cultivar Resistant to Bakanae Disease Harboring qBK1 Gene Derived From a Tong-il Type Rice ‘Shingwang’

Major agronomic traits and yield components of ‘MY299BK’

Variety Heading date Culm length (cm) panicle length (cm) No of panicles/hill No of spikes/panicles Ratio of ripened grain (%) 1000-grain weight of brown rice (g)
MY299BK Aug. 14 71ns 23ns 13ns 114ns 87.7ns 23.4ns
Nampyeong Aug. 14 74 20 14 108 89.9 21.2

Abiotic stress response of ‘MY299BK’

Variety Leaf senescence at maturing Dis-colorationz (1~9) Cold tolerancey Prematuring heading (%) Viviparous germination (%)

Heading delay (day) Grain fertility (%)
MY299BK Slow 5 9 37.7ns 0.0ns 27.3*
Nampyeong Slow 5 9 32.0 0.0 8.3

Major characteristics related to lodging of ‘MY299BK’

Variety Plant height (cm) Third internode length (cm) Breaking strength (g) Lodging index Lodging in the field (1~9)
MY299BK 91 10 1,411 90 1
Nampyeong 94 10 1,689 92 1

Resistance reaction to blast disease and bacterial blight

Variety Reaction at blast nursery testz Baterial blight

Number of tested sitesy Neck blast (infected spikes, %)x


R (0~3) M (4~6) S (7~9) Mean Icheon Milyang Jaecheon Jinju K1 K2 K3 K3a
MY299BK 3 9 0 4.5 2.6 0.5 0.1 0.0 S S S S
Nampyeong 4 8 0 4.3 0.2 0.0 0.0 0.1 S S S S

Grain quality of ‘MY299BK’

Variety Length/width ratio of brown rice Amylose (%) Protein (%) White core/White bally (0~9) Milling recovery of head rice (%) Palatablitity of cooked rice (-3~+3)
MY299BK 2.04ns 19.3ns 5.9ns 0/1 64.3 0.18
Nampyeong 2.16 18.9 5.9 0/0 70.3 0.11

Yield of ‘MY299BK’ at local adaptability test

Culture season Tested site Yield of milled rice (kg/10a) Index (A/B)

MY299BK Nampyeong


14 15 16 Ave (A) 14 15 16 Ave (B)
Ordinary season culture Milyang 588 520 506 538 586 550 557 564 95
Daegu 566 601 522 563 596 640 549 595 95
Seonsan 718 665 518 634 707 587 566 620 102
Jinju 657 633 577 622 631 595 519 582 107
Goseong 525 454 440 473 548 517 497 521 91
Mean 611 575 513 566ns 614 578 538 576 100
Table 1 Major agronomic traits and yield components of ‘MY299BK’

significant at 5% level, nsno significant.

Table 2 Abiotic stress response of ‘MY299BK’

significant at 5% level, ns: no significant

Evaluation at maximum tillering stage (1: tolerant, 9: susceptible).

Cold tolerance was evaluated at cold water (17℃) irrigation nursery in Chuncheon.

Table 3 Major characteristics related to lodging of ‘MY299BK’
Table 4 Resistance reaction to blast disease and bacterial blight

N fertilizer of blast nursery test: 240 kg/ha.

R: resistance, M: moderately resistance, S: susceptible.

N fertilizer of neck blast: 220 kg/ha.

Table 5 Grain quality of ‘MY299BK’

ns: no significant at 5% level.

Table 6 Yield of ‘MY299BK’ at local adaptability test

ns: no significant at 5% level.