Article | 08. 2014 Vol. 32, Issue. 4
Shoot Growth and Fruit Characteristics According to Bearing Branch Direction and Thickness in ‘Kawanakajima Hakuto’ Peach Trees

Fruit Research Division, National Institute of Horticultural & Herbal Science1
Department of Horticultural Science, Wonkwang University2

2014.08. 421:426


To investigate the optimal size of fruit bearing branches (FBBs) of ‘Kawanakajima Hakuto’ peach (Prunus persica Batsch) for production of high quality fruits, we evaluated shoot growth and fruit characteristics relative to FBB direction and thickness. FBB diameter, shoot length, fruit weight, and soluble solids content (SSC) averaged 6.9 mm, 32.6 cm, 333.6 g, and 11.2 °Brix, respectively. Coefficients of variation of FBB diameter and shoot length were high as 35.8% and 75.3%. The highest frequency values revealed that 76.4% of FBBs had a diameter below 9.0 mm, 70.0% of shoot lengths were less than 40 cm, 24.8% of fruits were 310-340 g, and 66.9% of SSCs were 10.5-12.5 °Brix. Shoot length and SSC were significantly affected by FBB diameter without direction, and fruit weight was significantly affected by interaction of FBB diameter and direction. There was a negative correlation (r3 = 0.094*) of FBB diameter and fruit weight with upward FBB directions, whereas FBB diameter and fruit weight were positively correlated (r2 = 0.246**) with downward FBB direction. With thick FBB diameter, shoot length, and SSC were significantly increased, but fruit weight was decreased. Therefore, downward FBBs below 9.0 mm in thickness are suitable for producing high-quality fruits of ‘Kawanakajima Hakuto’ peach.

1. Choi, S.W. and K.R. Kim. 2000. Effects of girdling and pinching on the June drop of ‘Sekaiichi’ apple. Kor. J. Hort. Sci. Technol. 18:391-394.  

2. Dann, I.R., P.D. Mitchell, and P.H. Jerie. 1990. The influence of branch angle on gradients of growth and cropping within peach trees. Sci. Hortic. 43:37-45.  

3. Forshey, C.G., D.C. Elfving, and R.L. Stebbins. 1992. Training and pruning apple and pear trees. Amer. Soc. Hort. Sci. Press, Alexandria, VA.  

4. Kim, G.S., D.G. Choi, and J.H Song. 2011. Effect of summer pruning by thinning, twisting, and cutting on growth and fruit quality in peach (Prunus persica). J. Agri. Life Sci. 42(2): 20-26.  

5. Kim, S.J., C.Y. Yang, S.W. An, J.C. Kim, J.M. Lee, and K.H. Cho. 2010. Effects of pinching on tree growth and fruits quality in ‘Changhowon Hwangdo’ peach. Kor. J. Hort. Sci. Technol. 28(Suppl. II):35. (Abstr.)  

6. Korea Meteorological Administration (KMA). 2012. Domestic past climate data.  

7. Kwon, J.H., H.Y. Park, J.H. Jun, and H.J. Lee. 2008. Changes of sugar composition and related enzyme activities of ‘Kansuke Hakuto’ and ‘Kurakatawase’ peach fruit after rainfall. Hort. Environ. Biotechnol. 49:85-89.   

8. Lee, C.H. and J.S. Kim. 1992. Study on photosynthetic activity of leaves at parts of different shoot in peach. J. Chinju Nat. Agri. For. Tech. Coll. 31:17-23.  

9. Lee, S.U., E.Y. Nam, S.K. Yun, Y.U. Shin, J.H. Jung, H.K. Kang, and I.K. Yoon. 2010. Effect on shoot growth inhibition by prohexadion-calcium in ‘Satonishiki’ sweet cherry. J. Bio- Environ. Control 19:387-391.  

10. Lescourret, F., M. Ben Mimoun, and M. Génard. 1998. A simulation model of growth at the shoot-bearing fruit level: Description and parameterization for peach. European J. Agron. 9:173-188.  

11. Park, J.Y., I.C. Son, and D.I. Kim. 2010. Effects of foliar spray of calcium hydroxide on shoot growth and fruit quality in ‘Daewol’ peach (Prunus persica). Kor. J. Environ. Agri. 29: 102-108.  

12. Park, M.Y., J.K. Park, S.J. Yang, H.H. Han, I.K. Kang, and J.K. Byun. 2008. Proper tree vigor and crop load in high density planting system for ‘Fuji’/M.9 apple trees. J. Bio-Envrion. Control 17:306-311.  

13. Quinlan, J.D. and A.P. Preston. 1971. The influence of shoot competition on fruit retention and cropping of apple trees. J. Hort. Sci. 46:525-534.  

14. Rural Development Administration (RDA). 2002. Peach cultivation. Standard farming textbook. RDA, Suwon, Korea.  

15. Rural Development Administration (RDA). 2008. Top fruit project.  

16. Ryu, J.H. 2002. Studies on the appropriate fruit numbers according to drooping branch size in ‘Fuji’/seedling trees. Master’s thesis, Kyun Hee Univ., Yongin, Korea.  

17. Woo, B.Y., W. Sim, W.J. Jeon, and T.M. Yoon. 2009. Influence of pinch lateral shoots on canopy development and early performance of slender spindle system. Kor. J. Hort. Sci. Technol. 27(Suppl. I):110. (Abstr.)