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New Cultivar Developed

복숭아 대목 ‘피알1’

남은영*, 권정현, 전지혜, 정경호, 조강희, 윤석규, 김성종, 송승엽

‘PR1’ Peach Rootstock

Korean Journal of Breeding Science 2020;52(1):81-87.
Published online: March 1, 2020

국립원예특작과학원 과수과

Fruit Research Division, National Institute of Horticultural & Herbal Science, Wanju 55365, Republic of Korea

*Corresponding Author: (E-mail: eynam@korea.kr, Tel: +82-63-238-6733, Fax: +82-63-238-6705)
• Received: November 14, 2019   • Revised: November 20, 2019   • Accepted: January 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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    Jinkwan Son, Taegyeong Kang, Minjung Park, Minjae Kong, Hyun-Sug Choi
    Agriculture.2022; 12(9): 1340.     CrossRef

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‘PR1’ Peach Rootstock
Image Image Image Image Image
Fig. 1 Selection process from collecting native genetic resources to development ‘PR1’ a peach rootstock.
Fig. 2 Pedigree of ‘PR1’ a peach rootstock.
Fig. 3 Breeding process of ‘PR1’ a peach rootstock.
Fig. 4 (A) comparison of one-year old shoot of (I) peach rootstock ‘PR1’ and (II) ‘Tsukuba No.4’, (B) comparison of fruit shape of (III) ‘PR1’ and (IV) ‘Tsukuba No.4’, (C) comparison of one-year old seedling root of (Ⅴ) ‘PR1’ and (Ⅵ) ‘Tsukuba No.4’ non-infected by nematode, and (D) comparison of one-year old seedling root of (Ⅴ) non-infected ‘PR1’ and (Ⅵ) ‘Tsukuba No.4’ infected by crown gall (agrobacterium tumefaciens).
Fig. 5 RAPD profile of among one-year old seedlings of peach rootstock using OPP09 and OPP14 primer. Lanes 1-30 correspond to the seedlings of ‘PR1 (PH193)’. (A) genetic polymorphism using OPP09 primer and (B) genetic polymorphism using OPP14 primer of ‘PR1 (PH193)’ seedlings.
‘PR1’ Peach Rootstock

Plant, one-year old shoot, and leaf characteristics of ‘PR1’ and Tsukuba No.4 peach rootstock in Suwon (2010~2014).

Characteristicsz PR1 Tsukuba No.4
Plant
Vigor/Habit Strong/spreading Strong/spreading
Branching Medium Medium
One-year-old shoot
Length of internode Medium Medium
Pubescence Absent Absent
Anthocyanin coloration of apex Strong Very Strong
Size of vegetative bud Large Medium
Shape of apex of vegetative bud Obtuse Rounded
Leaf
Anthocyanin coloration of young leaf Absent or weak Strong
Length/Width/Petiole length (cm) 10.6/2.7/0.6 10.4/2.5/1.1
Angle at apex Acute Acute
Shape of base Truncate Truncate
Color of upper side Medium green Reddish brown
Glossiness of upper side Medium Absent or weak
Length relative to petiole length Medium Long
Predominant number of nectaries Two Two
Position of nectaries On petiole On petiole
Nectary color/shape Violet/circular Yellow/reniform

Seed germination and graft compatibility depend on peach rootstocks in Suwon (2010~2014).

Rootstock Species Origin Seed Germination (%) Graft compatibility (%)

Kawanakajima Hakuto Soomi
PR1 P. persica Korea 81.5±8.2 64 52
Tsukuba No.4 P. persica Japan 61.6±20.0 66 50
GF677 P. dulcis×P. persica France 65.8±5.8 44 36
Nemaguard P. persica×P. davidiana USA 72.4±4.7 58 52
Yumyeong P. persica Korea 66.8±11.3 62 60
Chinese seedsz Mixed species China 34.6±5.8 60 48

Rootstock influence on the growth characteristics, fruit quality, and mortality of ‘Soomi’ peach trees planted in Hwasung (2014).

Rootstock Growth characteristics Fruit quality


Height (cm) Trunk diameter (mm) No. of lateral shoots Mortality (%) Fruit Weight (g) SSC
PR1 220.3±19.6 42.3±10.3 27.0±11.9 0.0 273.2±12.5 12.7±1.3
Tsukuba No.4 250.3±20.1 39.3±11.1 35.3±16.3 41.7 278.0±22.3 12.5±0.8
GF677 162.5±6.4 29.8±9.8 22.0±5.3 33.3 180.4±13.4 12.1±0.9
Nemaguard 231.5±25.8 40.5±13.3 30.0±9.4 33.3 272.8±21.4 13.5±1.8
Yumyeong 182.3±72.0 36.9±7.3 22.0±8.2 0.0 273.2±22.5 12.7±1.3
Chinese seed 146.0±1.0 22.0±0.2 15.7±4.9 0.0 170.4±9.8 13.7±0.9

Rootstock influence on the growth characteristics, mortality, cold hardiness, and percent of infection by nematode and crown gall in Suwon (2014)

Root stock Height (cm) Diameter (mm) No. of lateral shoot Mortality (%) Cold hardiness (LT50) Percent of infection

Nematode Crown gull
PR1 99.1±12.0 10.1±1.6 14.1±6.7 3 -34.2 0.0 0.0
Tsukuba No.4 111.3±18.8 10.9±2.3 12.6±6.3 34 -30.1 0.0 39.4
Nemaguard 69.6±9.6 9.0±2.1 11.5±5.9 12 - - -
Yumyeong 82.5±11.3 11.9±1.7 6.4±4.1 11 - - -
Chinese seed 58.5±10.9 7.5±1.5 12.5±5.2 21 - - -
PH105 62.3±3.1 10.9±0.9 8.4±3.5 100 - - -
Table 1 Plant, one-year old shoot, and leaf characteristics of ‘PR1’ and Tsukuba No.4 peach rootstock in Suwon (2010~2014).

Guideline of Prunus rootstocks for the conduct of tests for distinctness, uniformity and stability (Korea Seed and Variety Service, 2014)

Table 2 Seed germination and graft compatibility depend on peach rootstocks in Suwon (2010~2014).

Peach seeds imported from China mixed various species

Table 3 Rootstock influence on the growth characteristics, fruit quality, and mortality of ‘Soomi’ peach trees planted in Hwasung (2014).
Table 4 Rootstock influence on the growth characteristics, mortality, cold hardiness, and percent of infection by nematode and crown gall in Suwon (2014)