UF/IFAS Citrus Research

LaBelle Valencia Advanced Production System APS Rootstock Trial

Dr. Bill Castle – Dr. Fred Gmitter – Dr. Jude Grosser

November 18, 2020 - updated
November 22, 2019 - updated
September 6, 2019 - posted
CREC Citrus Plant Improvement

LaBelle Valencia APS Rootstock Trial – Description

To evaluate rootstock potential for higher density planting [10 x 20 ft.; 218 trees/acre], a series of Valencia trees on 31 rootstocks was established in the cooperator’s old field nursery site in the flatwoods west of Highway 29, south of LaBelle. The site was first surrounded with a Eucalyptus and red cedar windbreak then a fertigation system operated via drip irrigation was installed. The Valencia trees were propagated onto rootstocks from California, Spain and the CREC. This trial is part of a larger set of trees involving Vernia and Valencia planted on US 897, C-35 or Swingle at either 8 x 15 feet or 10 x 20 feet.

LaBelle Valencia APS Rootstock Trial - Summary

Location: LaBelle – Felda, Hendry County
Scion: Valencia
Rootstocks: 31
Date planted: November 2009 and March 2010
Design: Randomized complete-block; 4-10 replications
- Plot size: 4 trees
- Spacing: 10 x 20 ft. = 218 trees/acre
- Drip fertigation
Data:
- 2012/13: Yield [pounds fruit/tree]
- 2013/14: Yield [boxes/tree], juice quality
- 2014/15: Yield [boxes/tree]
- 2015/16: Yield [boxes/tree], juice quality
- 2017/18: Yield [boxes/tree]
- 2018/19: Yield [boxes/tree], juice quality, PS/acre, HLB rating
- 2019/20: Yield [boxes/tree], HLB rating
- 202021: HLB rating
- 6-year cumulative yield [boxes/tree]
Trial status: ACTIVE

Fig. 1. LaBelle Valencia APS rootstock trial – Mean yield [pounds fruit/tree, April 2013].

Fig. 2. LaBelle Valencia APS rootstock trial – Yield: mean + std. dev. [boxes/tree, May 2014].

Fig. 3. LaBelle Valencia APS rootstock trial – juice Acid: mean + std. dev. [May 2014].

Fig. 4. LaBelle Valencia APS rootstock trial – juice Brix: mean + std. dev. [May 2014].

Fig. 5. LaBelle Valencia APS rootstock trial – juice Ratio: mean + std. dev. [May 2014].

Fig. 6. LaBelle Valencia APS rootstock trial – juice Color: mean + std. dev. [May 2014].

Fig. 7. LaBelle Valencia APS rootstock trial – PS/box: mean + std. dev. [May 2014].

Fig. 8. LaBelle Valencia APS rootstock trial – Yield: mean [boxes/tree, April 2015].

Fig. 9. LaBelle Valencia APS rootstock trial – Yield: mean + std. dev. [boxes/tree, April 2016].

Fig. 10. LaBelle Valencia APS rootstock trial – juice Acid: mean + std. dev. [March 2016].

Fig. 11. LaBelle Valencia APS rootstock trial – juice Brix: mean + std. dev. [March 2016].

Fig. 12. LaBelle Valencia APS rootstock trial – juice Ratio: mean + std. dev. [March 2016].

Fig. 13. LaBelle Valencia APS rootstock trial – juice Color: mean + std. dev. [March 2016].

Fig. 14. LaBelle Valencia APS rootstock trial – PS/box: mean + std. dev. [March 2016].

Fig. 15. LaBelle Valencia APS rootstock trial – Yield: mean + std. dev., [boxes/tree, March 2018].

Fig. 16. LaBelle Valencia APS rootstock trial – HLB rating: mean + std. dev. [October 2018].

Fig. 17. LaBelle Valencia rootstock trial – Yield: mean + std. dev. [boxes/tree, March 2019].

Fig. 18. LaBelle Valencia rootstock trial – juice Acid: mean + std. dev. [March 2019].

Fig. 19. LaBelle Valencia rootstock trial – juice Brix: mean + std. dev. [March 2019].

Fig. 20. LaBelle Valencia rootstock trial – juice Ratio: mean + std. dev. [March 2019].

Fig. 21. LaBelle Valencia rootstock trial – juice Color: mean + std. dev. [March 2019].

Fig. 22. LaBelle Valencia Rootstock Trial – PS/box: mean + std. dev. [March 2019].

Fig. 23. LaBelle Valencia Rootstock Trial – PS/acre [calculated @ 218 trees/acre, 10 x 20 ft., March 2019].

Fig. 24. LaBelle Valencia Rootstock Trial – Yield [boxes/tree] and PS/box: mean [March 2019].

Fig. 25. LaBelle Valencia APS rootstock trial – HLB rating: mean + std. dev. [October 2019].

Fig. 26. LaBelle Valencia rootstock trial – Yield: mean + std. dev. [boxes/tree, August 2019].

Fig. 27. LaBelle Valencia APS rootstock trial – 6-year cumulative Yield

Fig. 28. LaBelle Valencia APS rootstock trial – HLB rating: mean + std. dev. [October 2020].

Fig. 29. LaBelle Valencia APS rootstock trial – HLB rating: mean + std. dev. [October 2018, 2019 and 2020].

LaBelle Valencia Advanced Production System APS Rootstock Trial

Keywords: 897, 6-11-106, 6-5-56, 62-109-1, 62-137-2, 66-6-29, B11R1T37, B11R4T9, B11R5T25, B11R5T4, B11R5T6, B11R5T62, B1R5T36, B21R2T21, B21R4T25, C-146 [PLN 1831], C-22 [PLN 1828], C-54 [PLN 1829], C-57 [PLN 1830], Changsha+50-7, UFR-6, F-A 31 [PLN 1837], F-A 42 [PLN 1838], F-A 5 [PLN 1835], F-A-13 [PLN 1836], FA-31 [PLN 1837], FA-42 [PLN 1838], FA-5 [PLN 1835], Orange 19, UFR-4, Orange 4, UFR-2, RB24-6, SO+50-7, SRXSH99-18, US 897, WGFT+50-7, 6-11-106, 6-5-56, 6-6-29, 62-109-1, 62-109-1 [PLN 1832], 62-137-2, 62-137-2 [PLN 1833,34], B11 R1 T37, B11 R4 T9, B11 R4 T9 [3], B11 R5, T25, B11 R5 T25 [3], B11 R5 T36, B11 R5 T36 [1], B11 R5 T4, B11 R5 T4 [4], B11 R5 T6, B11 R5 T6 [2], B11 R5 T62 (poorly grown) [1], B11R1T37, B11R4T9, B11R5T25, B11R5T36, B11R5T4, B11R5T6, B11R5T62, B21 R2 T2, B21 R25 T21, B21 R4 T25, B21R25T21, B21R2T21, B21R4T25, B21R4T25 [3], C-146 [PLN 1831], C-146 [PLN 1831] [1], C-22 [PLN 1828], C-22 [PLN 1828] [1], C-54 [PLN 1829], C-54 [PLN 1829] [3], C-57 [PLN 1830], C-57 [PLN1830] [4], Changsha+50-7, ChangSha+50-7 [UFR-6], Changsha+50-7, UFR-6 [3], F-A 13 [PLN 1836], F-A 13 [PLN 1836] [2], F-A 31 [PLN 1837], F-A 31 [PLN1837] [2], F-A 42 [PLN 1838], F-A 42 [PLN 1838] [4], F-A 5 [PLN1835], F-A 5 [PLN1835] [2], FA-13 [PLN 1836], FA-31 [PLN 1837], FA-42 [PLN 1838], FA-5 [PLN1835], Orange 19, Orange 19 [UFR-4], Orange 19, UFR-4 [5], Orange 4, Orange 4 [UFR-2], Orange 4, UFR-2 [3], RB 24-16, RB 24-16 [1], RB 24-6, RB 24-6 [5], SO+50-7, SO+50-7 [4], SRxSH99-18, SRxSH99-18 [3], US 897, US-897 [4], WGFT+50-7, WGFT+50-7 [4]