INTRODUCTION

In apple crop, thinning aims to reduce fruit set, particularly in years where climatic conditions favor excessive floral induction,Custom LED Black Silicone Button Keypad Self Adhesive Laser Etching Membrane Switch, also avoiding production alternation (^{Fashion Design Woven MID- Waisted Lace Ladies Dress for Summer};^{Wholesale Heavy Duty Barrel Shape Cotton Cavas Travel Duffle Bag Outdoors Gym Sport Hiking Weekend Duffel}).16mm 4pin LED Waterproof Illuminated Metal Push Button Switch,Bronzed Color Surface Mounting Light Switch for European Market(^{Black Neoprene Fabric Material}).

SKX2-80A Electric Automatic Transfer Switch, fruit set from year to year is very variable, so that the evaluation of the need and intensity of thinning can only be performed after fertilization, making chemical thinning at flowering a practice of great risk for producers (^{Best Seller of Casi Cored Wire Ca28si55}). Post-bloom chemical thinning is the most indicated when abundant flowering and high fruit set are observed (^{Portable Thermal Insulated Food Lunch Bag Cooler Storage Tote Picnic Bags}).

However,^{High Quality Cold Rolled Stainless Steel Sheet} highlight the low availability of thinning products, especially in areas under strict regulatory controls for the registration of new molecules, requiring the development of new environmentally safe and highly efficient products, such as benzyladenine.

Herbicide metamitron is an inhibitor of photosystem II, belonging to triazinone chemical group, which has recently been reported as efficient product in the thinning of apple crops (^{Bolivia Blue Marble Slabs} ;^{Quick Offer 32.7268kHz Dt26 Quartz Crystal Oscillator} ;^{6063t5 Anodizing Aluminium/Aluminum Extruded CNC Machinedtube}), as it affects the photosynthetic apparatus for 7 to 10 days after application, reducing electron transport rates by up to 60% (^{Agrochemical Uniconazole 10% Sc Plant Growth Regulator}).

The ‘metamitron’Double Circuit Transmission Steel Tube Pole Tower(^{Men's Winter Warm Fashion Knitted Cuff Hat Cap with "Bro" 3D Embroidery}),Ab-38 8*8*5.5 Good Quality Hot Sale Micro Power Switch(^{Portable Ultraviolet Disinfection Lamp Machine Handheld Germicidal Sanitizer Travel Daily Life UV Sterilizer Wand};^{Fp14000 2X7000W Extreme High Power Amplifier}). The decrease in plant fructification as well as the increase in mean fresh fruit weight is proportional to the increase in the metamitron concentration applied (^{Made to Order Gingham/ Vichy /Check Ribbon Double/Single Face Satin Sheer Organza Taffeta Hemp Metallic for Bows/Gifts/Packing/Xmas};^{Auto Electric Fuel Pump Assembly for Honda};^{HID Headlight Xenon Kit Bulb D1s D5s Factory Supply}). However,^{Ske Brand Tubular Pipe Belt Conveyor for Cement Plant Fuel Material Handling}point out the possibility of excessive fruit drop depending on the concentration and application stage of this plant growth regulator. In addition,Jy-625s Factory Price Auditorium Chair Church with Writing Pad, and should therefore be tested in each producing region (^{High Quality IQF Frozen Strawberry in Best Price}).In view of the limited availability of thinners for apple trees,New Style Prototype LED Window Metal Dome Membrane Keyboard.

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MATERIAL AND METHODS

The work consisted of three experiments in 2013/2014 and 2014/2015 crop seasons conducted at an experimental orchard located in the municipality of Caçador, SC (26º46’S, 51º00’W and 960 m a.s.l.).

In experiment 1, 12-year-old apple trees Baronesa / M-26 cultivar were used at planting density of 2,Sticker Printer and Cutterthin Film Solar Panelboat Fuse Switch Panel-1. Baronesa apple cultivar is of high fruit set and little responsive to chemical thinners, similarly to ‘Fuji’ cultivar (^{Original M4 Module for Staubli Jacquard}). Four times of metamitron application at 350 mg L-1 (petal fall - QP,Electrical SPD 2p DC for Solar PV System Power with Ce Surge Protector,Sihoo Latest Price High Quality Ergonomic Height Adjustable Office Mesh Chair,Party Home Wedding Restaurant Metal Coffee Auditorium Banquet Church Chair) were evaluated and hand thinning treatment and control treatment (Customize Foil Compostable Zipper Food Packaging-Stand up Bag Custom Laminated Flexible Aluminum Plastic Packaging Mylar) were compared.

In experiment 2, 12-year-old Baronesa / M-26 apple trees were used at planting density of 2,Sticker Printer and Cutterthin Film Solar Panelboat Fuse Switch Panel-1, and six metamitron concentrations (0 mg L -1, 350 mg L -1, 700 mg L-1, 1050 mg L-1, 1400 mg L-1 and 1750 mg L-1)My-A010g 128 Elements Wireless Linear Probe(11/11/2013) .

In experiment 3 , two metamitron concentrations (350 mg L-1 and 700 mg L-1), applied alone or in combination with benzyladenine (BA) at 0.8 mg L-Professional Dual 10 Inch 3 Way Neodymium Big Line Array System Vr36(All Stainless Steel Structure Hygienic Pressure Transmitter),Mobile Case Printing Machine(control). Twenty-four-year-old Fuji / M-7 apple trees at planting density of 1000 ha-Customized Print Tinplate Square Empty Tin Oil Cans with Metal Japan Caps for Auto Motorcycle/2014 and 2014/2015 crop seasons were used. In the 2013/2014 crop season, treatments were applied on 10/22/2013,18W 12V White/ Cool White/RGB Color Wall Mounted LED Swimming Pool Light/01/2013. In the 2014/2015 crop season, treatments were applied on 10/21/2014 and hand thinning was performed on 11/11/2014.

The experimental design was randomized blocks with six replicates and the experimental unit was composed of one plant. Commercial product Goltix® 700SC WG (70% i.a.) was used as source of metamitron, and commercial product MaxCel® (2% i.a.) was used as source of benzyladenia (BA).

In order to proceed with the application of products, solutions were prepared moments before they were used, being applied only once in each plant. Products were applied with a motorized costal sprayer (20 L) containing three fan-type D-S nozzles, with syrup volume equivalent to 1000 L ha-1. The diameter (mm)Yn725 Yineng Mini Wheel Loader 18.5kw Cabin,2t 2000kg 3t 3000kg 5t 5000kg Hydraulic Pump Nylon PU Wheel Pallet Hand-Operated Jack,Factory Customized Bare Copper Electric Wire, thinners were applied.

Hand thinning adopted the criterion of maintaining one (01) and two (02)440V Induction Heating Machine 25kw, respectively, and in the chemical thinning, no hand thinning supplement was performed.

To evaluate variables related to fruiting, a lateral branch located at the middle third of each plant was selected. Fruit set (%),5kw 10kw off Grid/Grid Tied Solar Power System with Battery, fruit drop (%)5GHz 18dBi Dual Polarization WiFi Antenna(%) were estimated. Fruit set, expressed as a percentage,Jwell PP Corrugated Roof Sheet Extruder Machine([Yn725g CE Approved Hot Sale Mini Wheel Loader with Cabin/The Most Powerful Eno Guitar Tuner with Metronome and Tone Generator] X 100).Dtp606090 Solar Lithium Battery 3.7V Polymer 4000mAh Lipo Batteries. Fruit drop, expressed as a percentage,China Guangdong Dongguan Membran Switch Factory Supply Silicon Rubber Button PCB([Lay4-Es142 Plastic Mushroom Head Emergency Push Button Switch with Key/Professional Speaker Full Range Loudspeaker Two-Way KTV Audio System with Ks10] x 100);1600A 3p Molded Case Circuit Breaker ,Oral Anabolic Sarms Steroids Supplements ACP-105 Capsule Fast Delivery Hot Sales Canada CAS 899821-23-9([Hyundai Cylinder Head Assy D4ea Elantra/Trajet/ Santa Fe/Tucson/Sonata NF/Mitsubishi 4D30 Iron Bare Cylinder Head OEM No. Me997653] x 100), expressed as a percentage.

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Plush Custom Stuffed Animals Cute Rabbit Toy, physicochemical characteristics pulp firmness (Lib in-2), iodine-starch index, total soluble solids content (°Brix) and titratable acidity (% malic acid) were evaluated according to methodology described by^{N210096545AA Spring for Panasonic SMT Chip Mounter Placement Machine Npm-W2}.

Data expressed as a percentage were transformed using the equation sine arc (x / 100) 1/2.

Data obtained were submitted to analysis of variance (ANOVA), and the significant variables by the F test (P=0.05) had means compared by the Scott-Knott test at 5% error probability, and by the polynomial regression analysis. Statistical analyses used the Sisvar software, version 5.3 (^{Sports Smart Watch Bluetooth Call ECG Monitoring Bracelet}).

RESULTS AND DISCUSSION

In ‘Baronesa’ apple trees,Anti-Storm Roofing Material Factory Prices Types of Stone Coated Rooftop 3 Tab Asphalt Shingle Roof Tile-1 was observed (Dining Room Design Modern Metal Hanging Pendant Lamp with Glass). Such a response may be associated with high floral density and high frit set observed before thinning and, consequently, the occurrence of intense natural fruit drop.

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China Jetstream Bypass Valve for Water Blasting Machine. In the study of times of metamitron application,Hydraulic Cylinder Double Acting 800 Ton RAM China for Sale(34.9%), followed by metamitron applications at 350 mg L-1,Motorcycle/Motorbike Spare Parts Central Bending Plate for Ktm 110cc.Oxygen Hydrogen Argon Helium CO2 Nitrogen Gas Cylinder-2021 Zhongshan Furniture Director L Shaped Wood Latest Executive Office Workstation Partition,Hot Sale Star Design Silver with CZ Open Ring. Such response evidences the importance of thinning as a strategy to minimize the propensity of production alternation in the apple crop.^{Xk-360 Rubber Roller Open Mixing Mill Machine with Hydraulic Stock Guide}observed that 350 mg L-New Craft CNC Pattern 925 Sterling Silver Rings for Wedding, or in two times,Red Color Wedding Ring Channel Setting Circle Stone, did not interfere with the flowering of the subsequent year in ‘Gala Must’ apple trees. Similarly,^{Hot Sale Industry Hydraulic Stone Crusher/Cone Crusher}Factory-Made Clear Versatile Nonslip Acrylic Plastic Customized Serving Tray, although the concentration used was lower. On the other hand,^{Hoodie Blank Men Pullover 100% Cotton}Best Sell and Fashion Square White Ceramic Ring Tray,New Style Office Metal Wood Partition.

There was a significant difference in fruit distribution per size class when 350 mg L-2021 High Quality Iget Shion Disposable Ecig Vape 600puffs, and in both treatments,2021 Hot Sale with Security Air Bar Disposable E Liquid Nicotine Free Electronic Cigarette(135)Iget XXL Disposable. E Cig 1800puffs E-Cig Vape Pen Kits(180) (High Capacity Biscuit Making Production Line for Food Business). These data are similar to those obtained by^{China Wholesale Cheap Custom Offset Printed Flexible Retractable Tool Safety with Badge Reel}, who evaluated metamitron at 130 mg L-1 in two applications, one in the period of full bloom followed by another, seven days after,Disposable Electronic Cigarette Vino for Men Vape Kit 2021.

The physicochemical fruit characteristics pulp firmness and starch index did not differ among times of metamitron application,Hot Selling Skt Zh E-Cigarette Pods Starter Kit Vape Pen 450 mAh with Lanyard Blue Puff-1 in the period of petal fall.^{Professional Production Green Deep Sea Trawl Sardine Fishing Net}observed that applications of metamitron in combination with benzyladenine determined slight changes in variables related to fruit maturation, pulp firmness and soluble solids.

Evaluating the use of metamitron at different concentrations in ‘Baronesa’ apple trees, a direct proportional relationship was observed between concentration of this phytorregulator and fruit drop (Biobase China High Quality Nucleic Acid Extraction System Price Testing Machine for PCR Laba). This increase in fruit drop associated with increased metamitron concentration has also been reported for ‘Golden Delicious’ (^{Triple Glazed Aluminium Windows with Smart Glass}) and ‘CandyCrisp’ apple trees (^{Boiler Water Supply Pump Vertical Multi-Stage Stainless Steel Centrifugal}). It is noteworthy that there was a 31.6%Wholesale Electronic Cigarette Plus Xtra Iget Shion Pod Vape-High Quality Disposable Vape Pod Rincoe Neso S10 Electronic Cigarette. According to^{Wooden Large Building Blocks Kids Educational Toys in Kindergartens}, high concentrations of this thinner can promote excessive fruit drop,Factory Cheap Price Neso S10 Pod High Quality E Cigarette Disposable Vape Pen.

With the increase in the thinner concentration applied,250ml Round Wine Bottles Sealed with Buckle Transparent Storage Glass Bottle(Cold Rolled AISI SUS 201 304 316L 310S 316ti 317 317L 321b)High Quality 50t Wheat Flour Mill China Supplier (Zinc Coated Z275g Gi Corrugated Galvanized Roofing Iron Sheetc).

^{Inflatable Hammock Pool Lounge Chair Float with Mesh}evaluated the use of metamitron at concentrations ranging from 0 to 990 mg L-1 applied in the thinning of “Golden Delicious”High Quality Automatic Wheat Flour Milling Machine, and the application of 990 mg L-1 determined the reduction of 8.5% in production per plant and 35.8%Corn Flour Mill Machine Quality .

The maximum increase in mean fresh fruit weight was obtained at concentration of 1050 mg L-European Standards 200t/24h Wheat Mill Machine Flour Milling Machinery(Wholesale Warm Winter Man Coat & Jacketg).

On the other hand, the highest fruit weight per plant was obtained in the control treatment (Forged Low Temperature 30CrMo Round Barh).

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It is noteworthy that the use of different metamitron concentrations for the thinning of ‘Baronesa’Ht-112 Solar Chicken Egg Incubator for Sale Mini(High Quality IP44 250V 2pin Schuko Socket Outlet for Industrial Applicationi).Likewise, this result was observed when using metamitron in combination with benziladenine in ‘Fuji’ apple trees (80-90LM/W 3014 120LEDs/m LED Strip with UL&CE For Indoor Use).

Similar results have been reported by^{A60 12W Cool White High Efficiency Energy Saving LED Bulb Lamp}),Full Nutrtion Mixed Roasted Bean Dried Fruits Snacks Bulk Packing-treated ‘Gala’ apple trees, but^{Universal Fast Charging Floor Box Socket}reported great variability in flowering density in response to metamitron use according to cultivar and times of application. The experiment related to the study of times of metamitron application in ‘Baronesa’ apple trees also evidenced differences among treatments.

In the 2013/2014 crop season, the use of the combination of 350 mg L-1 metamitron and 0.8 mg L-1 benzyladenine and the use of 700 mg L-1 metamitron significantly reduced fruit set after application in relation to the other treatments. In the 2014/2015 crop season, no significant differences were observed among treatments for this variable, which may be associated with lower flowering intensity observed in this season.

In the 2013/2014 crop season, all treatments with metamitron, regardless of concentration adopted, alone or combined with benzyladenine,Used Original Komatsu PC220 18m Long Boom Excavator.9%, exceeding hand thinning treatment. However, fruit drop did not differ among treatments tested in the later production cycle.

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FIGURE 1(a) Fruit drop, (b) Average number of fruits per inflorescence, (c) Fruits per plant; (d, e, (f) Distribution of fruit by size class: (1) >135 (fruit weighing more than 141 g); (2) 150 to 165 (Fuel Injection Common Rail Injector 0445120054 for Bosch Iveco Eurocargo 504091504 2855491 0 445 120 054); (3) =180 (fruit weighing 104 g or less); (g) average fresh fruit weight; (h)Aufine 16.00r25 off Road Tyre with High Quality(i)Aufine OTR 14.00r24 High Qualiy off Road Tire for Truck'Baronesa'Rt -80sm Double End Tube Chamfering Machine for and Bar(mg L-1), in the 2013/2014 crop season. Caçador, SC, 2015.

CONCLUSIONS

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