Document Type : Research Paper

Authors

1 Associated Professor, Department of Horticulture, Faculty of Agriculture, University of Tabriz, Tabriz, Iran

2 M.Sc. Student, Department of Horticulture, Faculty of Agriculture, University of Tabriz, Iran

3 Ph.D. Student, Department of Horticulture, Faculty of Agriculture, University of Tabriz, Tabriz, Iran

4 Associated Professor, Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran

Abstract

In order to determine the effects of Naphthalene acetic acid (NAA) on thinning intensive and fruit qualitative and anti-oxidant characteristics in two peach cultivars, an experiment was conducted in Research Station in Agriculture at the University of Tabriz in 2013 The experiment was arranged as factorial based on randomized complete block design in three replications in 'Anjiry  maleki' and 'Kosary' cultivars.  Treatments in four levels (0, 20, 40 and 60 ppm) after 14 days from full bloom when fruitlet diameter was 8-12 mm on selected branch was applied. Results showed that all treatments, caused effective thinning fruit in each two cultivars while in 'Kosary' cultivar abscission percentage was higher than 'Anjiry  maleki'. All hormone concentrations were caused increasing length, diameter, vitamin C, pH, total solution soiled (TSS) in two cultivars. Amount of the fruit firmness was not significantly between control and hormone levels. For the both studied cultivars, the highest antioxidant activity belonged to NAA treatment in 40 mg/L concentration. Although, the NAA treatment in different concentrations had no significant effect on total phenol and flavonoid contents of fruit juice, it was improved fruit quality and thinning intensive in two peach cultivars.
 
 
 

Keywords

1 . تقی‌پور ل و راحمی م (1388) بررسی تأثیرات چند مادۀ شیمیایی بر درصد تنک و کیفیت میوۀ زردآلو رقم خیاری. علوم باغبانی (علوم و صنایع کشاورزی). 23(2): 84-78.
2 . Abeer TM (2010) Thining time and fruit spacing influnce on maturirty yield and fruit quality of peach. Journal of Horticultural Science and Ornamental Plant. 2(3): 79-87.
3 . AOAC (2000) Vitamins and other nutrients (Chapter 45). In Official Methods of Analysis. 17th Ed. Washington, D.C.
4 . Awad MA, DeJager A, Dekker M and Jongen WMF (2001) Formation of flavonoids and chlorogenic acid in apples as affected by crop load. Scientia Horticulturae. 91: 227-237.
5 . Basak A (2006) The effect of fruitlet thinning on fruit quality parameters in the apple cultivar Gala. Fruit and Ornamental Plant Research. 14: 143-150
6 . Blanco A, Pequerul A, Val J, Monge E and Gomez Aparisi J (1995) Crop-load effects on vegetative growth, mineral nutrient concentration and leaf water potential in 'Catherine' peach. Horticultural Science. 70(4): 623-630.
7 . Bolat I and Karlidage H (1999) Thinning by NAA and hand of (Hacihaliloglu) and (Hasanbey) apricot cultivars. Acta Horticulturae. 488: 507-510.
8 . Bregoli A, Fabbroni C, Raimondi V, Brunner P and Costa G (2007) 6-BA and NAA effect on ‘Galaxy’fruit growth, abscission and quality: a comparison between the Po Valley and the South Tyrol producing areas. Erwerbs-Obstbau. 49(3): 97-100.
9 . Byers RE (1989) Response of peach trees to bloom thinning. Acta Horticulturae. 254: 125-132.
10 . Costa G, Giulivo C and Ramina A (1983) Effects of the different flower/vegetative buds ratio on the peach fruit abscission and growth. Acta Horticulturae. 139: 149-160.
11 . Davarynejad GH, Nyeki J, Szabo T and Szabo Z (2008) Influences of hand thinning of bud and blossom on crop load, fruit characteristics and fruit growth dynamic of ujfehertoi furtos sour cherry cultivar. American-Eurasian. Agricultural and Environmental Sciences. 4(2): 138-141.
12 . Dhinesh K and Yadav D (2004) Physical and chemical thinning of peach in subtropical north eastern India. Acta Horticulturae. 662: 327-331
13 . Dhuria H, Bhutani V and Parmar C (1976) Thinning plums with 2-chloro ethyl phosphonic acid. Scientia Horticulturae. 4(3): 279-283.
14 . Dutta P and Banik AK (2007) Effect of foliar feeding of nutrients and plant growth regulators on physico-chemical quality of Sardar guava grown in West Bengal. Acta Horticulturae. 335(6): 407-411.
15 . Elisa C, Lucia L, Oriana S, Tiziana P, Angelo S and Mezzetti B (2007) Auxin Synthesis-Encoding Transgene Enhances Grape Fecundity. Plant Physiology. 143: 1689-1694.
16 . Embree CG, Nichols DS, DeLong JM and Prange RK (2001) Certain chemical thinning treatments advance maturity of Paulared apple. Canadian Journal of Plant Science. 81(3): 499-501.
17 . Forshey CG (1986) Chemical fruit thinning of apple. Cornell Cooperative Extension Bulletin. No. 116.
18 . Gonkiewicz A, Błaszczyk J and Basak A (2011) Chemical pear fruit thinning. Fruit and Ornamental Plant Research. 19(1): 73-78.
19 . Greene DW (2005) Effects of repeated yearly application of chemical thinners on McIntosh Apples. HortScience. 40(2): 401-403.
20 . Grossman YL and DeJong TM (1995) Maximum fruit growth potential and seasonal patterns of resource dynamics during peach growth. Annals of Botany. 75: 553-560.
21 . Kaijv M, Sheng L and Chao C (2006) Antioxidation of flavonoids of Green Rhizome. Food Science. 27: 110-115.
22 . Klessig DF and Malamy J (1994) The salicylic acid signal in plants. Plant Molecular Biology. 26: 1439-1458.
23 . Kong T, Damerow L and Blanke M (2009) Effect of mechanical thinning on ethylene efflux, yield and fruit quality in apple. [Einfluss mechanischer Fruchtbehangsre gulierung auf Ethylen abgabe, Ertrag und Fruchtqualität bei Apfel.]. Erwerbs-Obstbau. 51: 39-52.
24 . Lachman J, Hamouz K, Šulc M, Orsak M, Pivec V, Hejtmankova A, Dvorˇak P and Cˇepl J (2009) Cultivar differences of total anthocyanins and anthocyanidins in red and purple-fleshed potatoes and their relation to antioxidant activity. Food Chemistry. 114: 836-843.
25 . Layne DR and Bassi D (2008) Botany and Taxonomy. In: D, R.Layne (ed.). The peach, Botany, Production and uses. CAB International. Pp.1-37.
26 . Mazumdar BC and Majumder K (2003) Methods on Physico-chemical Analysis of Fruits. Daya Publishing House, Delhi, India.
27 . McArtney S, Palmer J and Adams H (1996) Crop loading studies with ‘Royal Gala’ and ‘Braeburn’ apples: effect of time and level of hand thinning. New Zealand Journal of Crop and Horticultural Science. 24(4): 401-407.
28 . McArtney SJ (2002) Ethylene evolution from detached apple spurs in response to chemical thinners. HortScience. 37(4): 662-665.
29 . Meland M (2009) Effects of different crop loads and thinning times on yield, fruit quality, and return bloom in Malus× domestica Borkh.‘Elstar’. Horticultural Science and Biotechnology. Pp. 117-121.
30 . Mesejo C, Rosito S, Reig C, Martinez-Fuentes A and Agusti M (2012) Synthetic Auxin 3,5,6-TPA Provokes Citrus clementina (Hort. ex Tan) Fruitlet Abscission by Reducing Photosynthate Availability. Plant Growth Regulation. 31: 186-194.
31 . Myers SC (1986) Effect of thinning time on the subsequent development of fruit, shoots, and flower buds of peaches. HortScience. 21: 680.
32 . Myers SC, King A and Savelle AT (1993) Bloom thinning of ‘Winblo’ peach and ‘Fantasia’ nectarine with monocarbamide dihydrogensulfate. HortScience. 28: 616-617.
33 . Nawaz MA, Waqar A, Saeed A and Mumtaz Khan M (2008) Role of growth regulators on preharvest fruit drop, yield and quality in kinnow mandarin. Pakistan Journal of Botany. 40(5): 1971-1981.
34 . Njoroge S and Reighard GL (2008) Thinning time during stage I and fruit spacing influences fruit size of ‘Contender’ peach. Scientia Horticulturae. 115(4): 352-359.
35 . Pallas IG and Blanco JVA (2001) The inhibition of flower bud differentiation in ‘Crimson gold’ nectarine with GA3 as an alternative to hand thinning. Scientia Horticulturae. 90: 265-278.
36 . Reyes DIB, Chacon AR, Campos ARM and Prieto VMG (2008) Apple fruit chemical thinning in chihuahua, Mexico. Revista Fitotecnia Mexicana. 31(3): 243-250.
37 . Roussos PA, Sefferou V, Denaxa NK, Tsantili E and Stathis V (2011) Apricot (Prunus armeniaca L.) fruit quality attributes and phytochemicals under different crop load. Scientia Horticulturae. 129: 472-478.
38 . Singleton VL and Rossi JA (1965) Colorimetry of total phenolics with phosphomolybdic phosphotungestic acid reagents. American Journal of Enology and Viticulture. 16: 144-158.
39 . Southwick SM and Fritts JRR (1995) Commercial chemical thinning of stone fruit in California by gibberellins to reduce flowering. Plant Bioregulators in Horticulture. 394: 135-148.
40 . Stopar M, Bolcina U, Vanzo A and Vrhovsek AU (2002) Lower Crop Load for Cv. Jona gold Apples (Malus domestica Borkh.) Increases Polyphenol Content and Fruit Quality. Journal of Agricultural and Food Chemistry. 50: 1643-1646.
41 . Stover E, Fargione M, Risio R, Yang X and Robinson T (2001) Fruit weight, cropload, and return bloom of 'Empire' apple following thinning with 6-benzyladenine and NAA at several phenological stages. HortScience. 36(6): 1077-1081.
42 . Stover E, Telgheder C and Paine T (1995) Effect of NAA and Accel on thinning of ‘Bartlett’. Proceedings New YorkState Horticultural Society. 140: 50-51.
43 . Taheri A, Cline JA, Jayasankar S and Pauls PK (2012) Ethephon-Induced Abscission of “Redhaven” Peach. American Journal of Plant Sciences. 3(2): 295-301.
44 . Webster AD and Andrews L (1986) Flower and fruit thinning of Victoria plum (Prunus domestica L.) with paclobutrazol. Acta Horticulturae. 179: 703-704.
45 . Zhu H, Beers EP and Yuan R (2008) Amino ethoxyvinylglycine inhibits fruit abscission induced by naphthaleneacetic acid and associated relationships with expression of genes for ethylene biosynthesis, perception, and cell wall degradation in ‘Delicious’ apples. American Society for Horticultural Science. 133(6): 727-734