Iranian Journal of Horticultural Science

Iranian Journal of Horticultural Science

Effects of foliar applications of nitrogen, boron and zinc on auxin contents, fruit set and fruit drop in orange (Citrus sinensis) cv. Thompson Navel

Document Type : Full Paper

Authors
Fatemeh Seedkolai 1
Hosein Sadeghi 2
Hosein Moradi 2
1 Former Graduate Student Professors, , Department of Horticulture, University of Agricultural Sciences and Natural Resources, Sari.
2 Assistant Professors, Horticulture Masters student, Department of Horticulture, University of Agricultural Sciences and Natural Resources, Sari.
10.22059/ijhs.2015.55858
Abstract
In order to investigate the effect of nitrogen, boron and zinc on auxin content and fruit set in Thompson navel orange, a factorial experiment based on complete randomized block design with 12 treatments and 3 replications was conducted. Experimental treatments included: urea at three levels (0, 3 and 6 gr/L), boric acid at two levels (0 and 0.5 gr/L) and zinc sulfate at two levels (0 and 3 gr/L). The number of flower, initial fruit set, fruit-set after the June drop and the final fruit set were measured. The length and diameter of fruit and the auxin content in the abscission zone were measured. Nutrient application had a significant effect on increasing the number of flowers, percentage of initial fruit set and yield. The lowest rate of initial and final fruit drop were obtained in combined treatments, using of urea at concentration of 6 gr/L and zinc sulfate with concentration of 3 gr/L. The highest percentage of fruit set after the June drop and amount of auxin were obtained in the combined treatments of zinc sulfate (3 gr/L) plus boric acid at 0.5 gr/L which had significant positive effect on yield increment.
 
Keywords
citrus
Nutrients
june drop
final fruit set

  1.  

    1. Agens, M., Nyomora, S., Patrik, S. & Brown, H. (1997). Fall foliar applied boron increase boron and mut set of almond. Journal of American Society for Horticultural Science, 122(3), 405-410.
    2. Ahmad, M. &Abbdel, F.M. (1995). Effect of urea, some micronutrients and growth-regulatorsfoliar spray on the yield, fruit quality, and some vegetative characteristics of 'Washington Navel' organe trees. Horticulturae Science, 30, 774-780.
    3. Akhlaghi Amiri, N., Arzani, K., Malakouti, M.J. & Barzegar, M. (2008). Investigation of pre harvest drop and its relation with auxin content in abscission zone of Italian orange fruit(Citrus sinensis cv. Italian), Journal of Agricultural Sciences and Natural Resources, Gorgan University of Agricultural Sciences and Natural Resources, 15 (5), 77-86. (in Farsi)
    4. Albrigo, L. G. & Syvertsen, J. P. (2001). What about foliar N P K on citrus? Fluid Journal. Issu 34. Vol. 9(3): 8-11
    5. Andrews, P. K. (2002). How foliar – applied nutrients affect stresses in perennial fruit plants.International Symposium on Foliar Nutrition of Perennial Fruit Plants, 31, 246.
    6. Asadi Kangarshahi, A., Akhlaghi Amiri, N. & Malakouti, M. J. (2012). Effect of 4 years using of zinc sulfate on yield and quality of Sangin orange (Citrus sinensis), Iranian Journal of Soil and Water Sciences, 42(1), 77-86. (in Farsi)
    7. Bybordi, A. &Malakouti, M. J. (2005). Effects of foliar applications of nitrogen, boron, and zinc on fruit set and the some quality of almonds, Journal of Research andDevelopmentinAgriculture andHorticulture, 68, 32-40. (in Farsi)
    8. Bondada, B., Petracek, P. D., Syvertsen, J. P. & Albrigo, L. G. (2006). Cuticular penetration characteristic of urea in citrus leaves. Journal of Horticultural Science and Biotechnology, 81(2), 219-224.
    9. Burns, J. K. (1997). Citrus fruit abscission. Citrus flowering and fruiting short courses, Citrus Research and Education Center, Lake Alfred. pp: 130-136.
    10. Burns, J. K. (1998). Abscission in citrus fruit, leaves and flowers: physiology, molecular biology andpossible points of control. Proceeding of the citrus abscission workshop, Citrus Research and Education Center, Lake Alfred. 28-36.
    11. Castr, J. & Sotomayor, C. (1997). The influence of boron and zinc sprays bloomtime on almond fruit set. Acta Horticulturae, 7, 402-405.
    12. Cheng, L., Fengwang, M. & Ranwala, D. (2004(. Nitrogen storage and its interaction with carbohydrates of young apple trees in response to nitrogen supply. Tree Physiology Journal, 2, 91-98.
    13. Cimato, A., Maranci, M. & Tattini, M. (1990). The use if foliar fertilization to modify sinks competition and to increase yield in olive (Olea europaea L.) cv Frantoio. Acta Hirticulturae, 286, 175- 178.
    14. Dadrasnia, A., Forghan, A., Moradi, F. & Fifaei, R. (2010). Effect offoliarurea onthe properties of Thompson navel orange. Journal of Best Crops Agriculture, 11(2), 41-47. (in Farsi)
    15. Dolatibaneh, H. & Taheri, M. (2009). Effects of foliar application of nutrient elements on fruit set and quantitative and qualitative traits of Keshmeshi grape cultivar. Journal of Seed and Seedling, 2(25), 103-115. (in Farsi)
    16. El-Otmani, M., Oubahou, A. A., Zahra, F. & Lovatt, C. J. (2002). Effect of foliar urea as an N source in substainable citrus production systems. International Symposium on Foliar Nutrition of Perennial Fruit Plants, Merani, Italy. Pp. 32-34.
    17. Faust, M. (1989). Physiology of temprate zone fruit Trees. Wiley, New Yourk.
    18. FotouhiGhazvini, R. & FattahiMoghaddam, J. (2006). Citrus growing in Iran. Gilan University Publications. 305. (in Farsi)
    19. Food and agriculture organization of the United Nations statistical Yearbook. (2011). Rome. Italy.
    20. Goren, R. (1993). Anatomical, physiological and hormonal aspects of abscission in citrus. P145-182, In: Janick, J. (eds.), Horticultural Review, vol.15, AVI Publishing Company.
    21. Huchche, A.D. (2001). Nature and management of citrus fruit drop. P287-294, In: Singh, S., S.A.M.H. Naqvi (eds.), Citrus, International Book Distributing Company, India.
    22. Jackson, D.I. & Sweet, G.B. (1972).Flower initiation in temperate woody plants. Horticultural Abstracts 42, 9-25.
    23. Khoshghalb, H., Arzani, K., Malakouti, M. J. & Barzegar, M. (2012(. Effect of foliar application ofcalcium, zinc and boronon growth before harvesting and content of sugars, nutrients and som equantitative and qualitative traits in varieties of Asian pear, Journal of Horticultural Science, 44(2), 149-159. (in Farsi)
    24. Malakouti, M. J. & Homai, M. (1995). Soil fertilitesindry areas. Tarbiat Moddarres University Publications, Tehran. 483. (in Farsi)
    25. Marschner, H. (1995). Mineral Nutrition of Higher Plants. Academic Press. London, 123 p.
    26. Morshedi, A. (2001). Effects of nitrogen, boron and zinc spray on grapevine fruit set. In Proceedings of the 7th Iranian Soil Science Congress, Tehran, Iran. pp. 494-495. (in Farsi)
    27. T. A. (2006). Size, Biomass, and Nitrogen Relationships with Sweet Orange Tree Growth. Journal American Sociality for Horticultural Science, 131(1), 149-156.
    28. Nancy, W., Maxine, C., Thompson, M., Chaplin, M.H., Stebbins, R.L. & Westwood, M.N. (1978). fruit set of Italian prune following fall foliar and spring boron sprays. Journal of American Society for Horticultural Science, 103, 253-257.
    29. Nyomora, A. M. S. & Brown, P. H. (1997). Fall foliar applied boron increases boron concentration and nut set of almond. Journal of American Society for Horticultural Science, 122(3), 405-410.
    30. Porlingis, I. C. (1974). Flower bud abscission in pistachio (Pistacia vera L.) as related to fruit development and other factors. Journal American Sociality for Horticultural Scienc, 99(2), 121-125.
    31. Qin, X. (1996). Foliar sprays of B, Zn, and Mg and their effects on fruit production and quality of Jincheng organ. Journal of South west Agricultural University, 18(1), 40-45.
    32. Ranjbar, R. & Eshghi, S. (2013). Effect of combined application rate of nitrogen fertilizer, zinc, boron and molibdenon the percentage of pellets, fruit set and fruit quality characteristics of grape cultivars Black Samarghandi, Iranian Journal of Horticultural Science, 44(4), 399-389. (in Farsi)
    33. Salisbury, F. B. & Ross, C. W. (1992). Plant Physiology. (4thEdn), pp. 315–405. Wadsworth Publishing Company, Belmont, California.
    34. Statistics and Information Office of Agricultural Ministry. (2006). Abstract of agricultural statistics for agronomical and horticultural crop in 2004-2005, P 10. Publication in Agricultural Scientific Evidences and Information Center, Tehran, Iran. (in Farsi)
    35. Talaei,A., Taheri, M. & Malakouti, M. J. (2002). Effect of foliar nitrogen, boron and zincon quantity and quality of the olive fruit. Iranian Journal of Agriculture Science, 32(4), 727-736. (in Farsi)
    36. Talaei, A., Esmailizadeh, M., Lesani, H., Jvanshah, A. & Hokmabadi, H. (2009). Effect ofGirdling, Fruit thinning, urea, zinc sulphate and sucaroz on the persistence of floral budpistachio Ohadi cultivar, JournalofHorticultural Science, 41(3), 265-274. (in Farsi)
    37. Taheri, M. (2009). Investigation of the effect of foliar nitrogen, boron and zinc on fruit set and some quantitative and qualitative properties of yellow local varieties ofolive. M.Sc. Thesis, Tehran University, Agricultur College. 145. (in Farsi)
    38. Vezvai, A., Ghaderi, N., Talaei, A. & Babalar, M. (2002). Effect of foliar application of boric acid and zinc sulfate on almond fruit. Journal of AgriculturalScience, 32(2), 377-384. (in Farsi)
    39. Zamanzadeh, Z., Ehsanpour, A. & Amini, F. (2011). Investigation of auxinin transgenic plants of rootstobacco contain Ri-T DNA. Journal of SciencesResearchCell and Tissue, 1(2), 1-7. (in Farsi)
    1. Salem, S. E. (1996). Response of Blady Mandrin trees to foliar application of iron – zinc, manganese and urea under sandy soil condition. Horticulture Australian Bureau of Statistics , 66 (6), 214-219.
Iranian Journal of Horticultural Science
Volume 46, Issue 3 - Serial Number 3
Autumn 2015
Pages 367-378

  • Receive Date 22 February 2014
  • Revise Date 04 September 2014
  • Accept Date 07 September 2014