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군집소수를 가진 고착립밀도 이삭형 벼 개발 및 특성 분석

박현수*, 백만기, 김춘송, 이건미, 박슬기, 이창민, 서정필, 조영찬

Development and Characterization of Rice Lines with Clustered Spikelets and Dense Panicles

Korean Journal of Breeding Science 2018;50(4):415-423.
Published online: December 1, 2018

농총진흥청 국립식량과학원

National Institute of Crop Science, RDA, Wanju, 55365, Republic of Korea

* (E-mail: mayoe@korea.kr, Tel: +82-63-238-5214, Fax: +82-63-238-5205)
• Received: October 1, 2018   • Revised: October 1, 2018   • Accepted: October 24, 2018

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.

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  • Characterization of Yield and Panicle-related Traits of Early Maturing Rice Varieties by Cultivation Times in the Honam Plain Area of Korea
    Hyun-Su Park, Jung-Pil Suh, Man-Kee Baek, Chang-Min Lee, Woo-Jae Kim, Gun-Mi Lee, Suk-Man Kim, Choon-Song Kim, Young-Chan Cho
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Development and Characterization of Rice Lines with Clustered Spikelets and Dense Panicles
Korean. J. Breed. Sci.. 2018;50(4):415-423.   Published online December 1, 2018
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Development and Characterization of Rice Lines with Clustered Spikelets and Dense Panicles
Korean. J. Breed. Sci.. 2018;50(4):415-423.   Published online December 1, 2018
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Development and Characterization of Rice Lines with Clustered Spikelets and Dense Panicles
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Fig. 1 Distribution of the rice lines with clustered spikelets and dense panicle, parents, and Korean rice varieties using number of spikelets per panicle and panicle length (A) and relationship among panicle-related traits (B) and the varieties and lines (C) in the principal component analysis diagram composed of component 1 and 2. Korean rice varieties were classified into japonica (blue round mark , symbol J, n=160) and Tongil-type (green triangle mark, symbol T, n=18). CD indicates rice lines with clustered spikelets and dense panicle (red square mark, symbol CD, n=23) and BH indicates Binhae Col.#1. PL: panicle length, TNN: thickness of neck node, NR: number of rachis-branches per panicle, NS: number of spikelets per panicle, DP: density of spikelets in panicle, NPr: number of primary rachis-branch (PRB)es per panicle, NSPr: number of spikelets on PRBs per panicle, MNSPr: mean number of spikelets on a PRB, NSr: number of secondary rachis-branch (SRB)es per panicle, NSSr: number of spikelets on SRBs per panicle, MNSSr: mean number of spikelets on a SRB, Sr/Pr: ratio of SRBs to PRBs, SSr/SPr: ratio of spikelets on SRBs to spikelets on PRBs.
Fig. 2 Panicle architecture of the varieties used in this study and selected rice lines with clustered spikelets and dense panicle. NP: Nampyeong, BRC: Boramchan, HAR2: Hanareum2, BH: Binhae Col.#1, ARC: ARC10319, CD: rice lines with clustered spikelets and dense panicle. White bars indicate 10 cm.
Fig. 3 Path analysis of causal relationship among traits to explain the variation of number of spikelets per panicle (A) and yield (B). NS: number of spikelets per panicle, NPr: number of primary rachis-branch (PRB)es per panicle, NSPr: number of spikelets on PRBs per panicle, MNSPr: mean number of spikelets on a PRB, NSr: number of secondary rachis-branch (SRB)es per panicle, NSSr: number of spikelets on SRBs per panicle, MNSSr: mean number of spikelets on a SRB, PN: number of panicles per hill, RRG: ratio of ripened grain, TGW: 1,000 grain weight of brown rice, BRR: brown/rough rice ratio. Continuous arrows and dotted arrows indicate the significant and no significant effect, respectively. The arrow thickness means proportion of the effect. ** and ns mean significant at 1% level and no significant by path analysis, respectively.
Development and Characterization of Rice Lines with Clustered Spikelets and Dense Panicles

Comparison of panicle-related traits of the rice lines with clustered spikelets and dense panicle (CD type) and Korean rice varieties.

Variety/line no. PL z (cm) TNN (mm) NR NS DP (no./cm) NPr NSPr MNSPr NSr NSSr MNSSr Sr/Pr SSr/SPr
Binhae Col.#1 1 20.9c y 2.25a 83b 343b 16.4b 17a 100a 5.7a 66b 243b 3.7b 3.7b 2.4b
ARC10319 1 29.6a 2.30a 73b 302b 10.2c 12c 77b 6.2a 61b 225b 3.7b 4.9b 2.9b
CD type 23 16.6d (13.8-23.2) 2.43a (1.90-3.40) 109a (86-147) 482a (385-581) 29.9a(17.5-38.9) 15b (14-17) 94a (64-110) 6.2a (4.3-7.3) 94a (72-132) 388a (302-471) 4.1a (3.5-4.4) 6.3a (4.9-9.1) 4.3a(3.2-7.3)
japonica 160 22.0c x (17.6-25.4) 1.78b (1.40-2.15) 40d (27-60) 151d (105-236) 6.9c (4.6-10.1) 12c (9-15) 67b (48-95) 5.8a (5.2-6.5) 29d (17-45) 84d (40-141) 2.9c (2.4-3.3) 2.5c (1.6-4.3) 1.3c (0.6-2.4)
Tongil-type 18 25.2b (22.1-27.6) 2.36a (2.04-2.71) 55c (48-65) 217c (179-281) 8.7c (7.0-12.5) 12c (9-16) 66b (46-92) 5.5a (4.4-6.1) 43c (35-54) 151c (112-189) 3.5b (3.0-3.9) 3.7b(2.6-5.2) 2.4b (1.3-3.2)
C.V. (%) 12.4 16.2 46.6 55.4 78.4 14.2 18.2 6.9 57.9 78.9 12.9 41.9 64.7

zPL: panicle length, TNN: thickness of neck node, NR: number of rachis-branches per panicle, NS: number of spikelets per panicle, DP: density of spikelets in panicle, NPr: number of primary rachis-branch (PRB)es per panicle, NSPr: number of spikelets on PRBs per panicle, MNSPr: mean number of spikelets on a PRB, NSr: number of secondary rachis-branch (SRB)es per panicle, NSSr: number of spikelets on SRBs per panicle, MNSSr: mean number of spikelets on a SRB, Sr/Pr: ratio of SRBs to PRBs, SSr/SPr: ratio of spikelets on SRBs to spikelets on PRBs.

yMeans in each column followed by the same letter are not significantly different at 5% level according to Duncan’s multiple range test.

xThe data of japonica and Tongil-type varieties were used the data previously evaluated by the same method (Park et al. 2010).

Panicle-related traits of the varieties and selected rice lines with clustered spikelets and dense panicle at yield trial.

Variety/line PL z (cm) TNN (mm) NR NS DP (no./cm) NPr NSPr MNSPr NSr NSSr MNSSr Sr/Pr SSr/SPr
Nampyeong 18.0d y 1.22c 25c 93d 5.2d 9d 50c 5.6bc 16c 43d 2.7c 1.7d 0.8d
Boramchan 19.5c 1.31c 26c 96d 4.9d 9d 49c 5.5bc 17c 47d 2.7c 1.9d 0.9d
Hanareum2 21.5b 1.73b 30c 114d 5.3d 10c 50c 5.1d 20c 64cd 3.1b 2.0c 1.2d
Binhae Col.#1 17.6d 1.68b 39b 144c 8.2c 12b 66b 5.6bc 27b 78c 2.7c 2.2c 1.1d
ARC10319 25.3a 1.75b 35b 134c 5.3d 10c 53c 5.3cd 25b 107b 3.1b 2.5b 1.5d
CD9 13.7e 1.82b 71a 277a 20.3a 13a 69b 5.4cd 58a 209a 3.6a 4.5a 3.0a
CD27 13.3e 1.87ab 66a 283a 21.5a 13a 82a 6.2a 53a 198a 3.7a 4.0a 2.2c
CD34 16.7d 2.11a 64a 259b 15.6b 12b 72b 5.9ab 52a 188a 3.6a 4.2a 2.6b
CD39 16.5d 1.79b 64a 252b 15.4b 12b 66b 5.3cd 52a 186a 3.5a 4.1a 2.8a

zPL: panicle length, TNN: thickness of neck node, NR: number of rachis-branches per panicle, NS: number of spikelets per panicle, DP: density of spikelets in panicle, NPr: number of primary rachis-branch (PRB)es per panicle, NSPr: number of spikelets on PRBs per panicle, MNSPr: mean number of spikelets on a PRB, NSr: number of secondary rachis-branch (SRB)es per panicle, NSSr: number of spikelets on SRBs per panicle, MNSSr: mean number of spikelets on a SRB, Sr/Pr: ratio of SRBs to PRBs, SSr/SPr: ratio of spikelets on SRBs to spikelets on PRBs.

yMeans in each column followed by the same letter are not significantly different at 5% level according to Duncan’s multiple range test.

Yield-related traits of the varieties and selected rice lines with clustered spikelets and dense panicle at yield trial.

Variety/line HD z (DAS) CL(cm) PN RRG(%) TGW (g) RRY (kg/10a) BRR (%) BRY (kg/10a) Index of BRY (%)
Nampyeong 107d y 82de 15a 89.1a 22.1d 661bc 82.5ab 546c 100
Boramchan 109c 73f 16a 89.6a 24.5a 680b 83.0a 602b 110
Hanareum2 101e 78ef 16a 88.3a 23.3c 1,007a 82.1b 827a 153
Binhae Col.#1 96f 88d 9b 80.4a 23.1c 567d 82.3b 466d 85
ARC10319 101e 134a 10b 86.4a 24.0b 455e 80.8c 374e 69
CD9 112b 108c 9b 61.8b 15.8g 586cd 79.4d 465d 85
CD27 110c 108c 9b 64.4b 16.5f 551d 79.8d 440d 80
CD34 118a 126b 9b 67.6b 20.5e 695b 80.4c 560bc 103
CD39 110c 106c 9b 64.4b 20.5e 665bc 80.1c 533c 98

zHD: heading date, DAS: days after seeding, CL: culm length, PL: panicle length, PN: number of panicles per hill, RRG: ratio of ripened grain, TGW: 1,000 grain weight of brown rice, RRY: rough rice yield, BRR: brown/rough rice ratio, BRY: brown rice yield

yMeans in each column followed by the same letter are not significantly different at 5% level according to Duncan’s Multiple Range Test

Table 1 Comparison of panicle-related traits of the rice lines with clustered spikelets and dense panicle (CD type) and Korean rice varieties.

PL: panicle length, TNN: thickness of neck node, NR: number of rachis-branches per panicle, NS: number of spikelets per panicle, DP: density of spikelets in panicle, NPr: number of primary rachis-branch (PRB)es per panicle, NSPr: number of spikelets on PRBs per panicle, MNSPr: mean number of spikelets on a PRB, NSr: number of secondary rachis-branch (SRB)es per panicle, NSSr: number of spikelets on SRBs per panicle, MNSSr: mean number of spikelets on a SRB, Sr/Pr: ratio of SRBs to PRBs, SSr/SPr: ratio of spikelets on SRBs to spikelets on PRBs.

Means in each column followed by the same letter are not significantly different at 5% level according to Duncan’s multiple range test.

The data of japonica and Tongil-type varieties were used the data previously evaluated by the same method (Park et al. 2010).

Table 2 Panicle-related traits of the varieties and selected rice lines with clustered spikelets and dense panicle at yield trial.

PL: panicle length, TNN: thickness of neck node, NR: number of rachis-branches per panicle, NS: number of spikelets per panicle, DP: density of spikelets in panicle, NPr: number of primary rachis-branch (PRB)es per panicle, NSPr: number of spikelets on PRBs per panicle, MNSPr: mean number of spikelets on a PRB, NSr: number of secondary rachis-branch (SRB)es per panicle, NSSr: number of spikelets on SRBs per panicle, MNSSr: mean number of spikelets on a SRB, Sr/Pr: ratio of SRBs to PRBs, SSr/SPr: ratio of spikelets on SRBs to spikelets on PRBs.

Means in each column followed by the same letter are not significantly different at 5% level according to Duncan’s multiple range test.

Table 3 Yield-related traits of the varieties and selected rice lines with clustered spikelets and dense panicle at yield trial.

HD: heading date, DAS: days after seeding, CL: culm length, PL: panicle length, PN: number of panicles per hill, RRG: ratio of ripened grain, TGW: 1,000 grain weight of brown rice, RRY: rough rice yield, BRR: brown/rough rice ratio, BRY: brown rice yield

Means in each column followed by the same letter are not significantly different at 5% level according to Duncan’s Multiple Range Test