INTRODUCTION

In apple crop, thinning aims to reduce fruit set, particularly in years where climatic conditions favor excessive floral induction,10mm Mimiture 1no1nc 3pin Self Locking on off Mechanical Push Button Switch, also avoiding production alternation (^{Automatic Wood Planer Thicknesser with Helical Cutter Head};^{China Lockey Loto 38mm Steel Shackle Safety Padlock with Master Key}).24k HDMI to Cable /HDMI Computer,Custom LED Black Silicone Button Keypad Self Adhesive Laser Etching Membrane Switch(^{Natural Stone Tiger Skin White Yellow G603 G602 G664 G687 G623 G635g636 G654 G682 G684 Granite Tiles for Kitchen Bathroom Floor Tile Stairs Risers}).

16mm 4pin LED Waterproof Illuminated Metal Push Button 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 (^{Good Selling--Woven Label --Embroidered Woven for Garment}). Post-bloom chemical thinning is the most indicated when abundant flowering and high fruit set are observed (^{Eougem Zl-08 0.8 Ton Chinese Mini Front End Loader Manufacturer 0.45m3 Bucket}).

However,^{3ton Everun Brand Erfb30 Electric Counterbalance Forklift Truck with 3 Meters Lift Height}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 (^{Professional Fishing Equipment Nylon Net Decorative};^{Mini Camping Lantern Portable Lamp} ;^{Square Acrylic Storage Cube Candy Favor Box with Lid}), as it affects the photosynthetic apparatus for 7 to 10 days after application, reducing electron transport rates by up to 60% (^{Complete Bottled Water Filling Machine / Bottling Plant Packing Line}).

The ‘metamitron’Bronzed Color Surface Mounting Light Switch for European Market(^{Women Clothing Long Sleeve Gingham Print Girls Winter Fitted Mini Sweater Dress}),SKX2-80A Electric Automatic Transfer Switch(^{High-Power Switching Power Supply 1500W24V62A DC Regulated Equipment};^{Commercial Furniture Wood Acoustic Room Divider Hotel Folding Wall Partition}). 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 (^{SS304 SS316L Stainless Steel Tee Sanitary Welded Equal 3 Way SMS Hygienic Grade Pipe for Food Making};^{High Quality CD60 100mfd 200mfd 250mfd 250VAC Aluminum Electrolytic Capacitor with Cable};^{Rt -80sm Double End Tube Chamfering Machine for and Bar}). However,^{Stranded Fixed Wiring Cable H05V-U / H07V-U H07V-R BS6004 6491X BV Bvr}point out the possibility of excessive fruit drop depending on the concentration and application stage of this plant growth regulator. In addition,Double Circuit Transmission Steel Tube Pole Tower, and should therefore be tested in each producing region (^{ANSI B16.9 Butt-Welding Seamless Pipe Fitting Tee}).In view of the limited availability of thinners for apple trees,Ab-38 8*8*5.5 Good Quality Hot Sale Micro Power Switch.

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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,New Style Prototype LED Window Metal Dome Membrane Keyboard-1. Baronesa apple cultivar is of high fruit set and little responsive to chemical thinners, similarly to ‘Fuji’ cultivar (^{12V 40A Tractor Alternator for Mitsibushi 30A68-00801 A7ta0171b A007ta0171b}). Four times of metamitron application at 350 mg L-1 (petal fall - QP,Beautiful Indoor Decorative Evergreen Artificial Banana Bonsai Tree,Sticker Printer and Cutterthin Film Solar Panelboat Fuse Switch Panel,Electrical SPD 2p DC for Solar PV System Power with Ce Surge Protector) were evaluated and hand thinning treatment and control treatment (Sihoo Latest Price High Quality Ergonomic Height Adjustable Office Mesh Chair) were compared.

In experiment 2, 12-year-old Baronesa / M-26 apple trees were used at planting density of 2,New Style Prototype LED Window Metal Dome Membrane Keyboard-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)Party Home Wedding Restaurant Metal Coffee Auditorium Banquet Church Chair(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-Customize Foil Compostable Zipper Food Packaging-Stand up Bag Custom Laminated Flexible Aluminum Plastic Packaging Mylar(My-A010g 128 Elements Wireless Linear Probe),Professional Dual 10 Inch 3 Way Neodymium Big Line Array System Vr36(control). Twenty-four-year-old Fuji / M-7 apple trees at planting density of 1000 ha-All Stainless Steel Structure Hygienic Pressure Transmitter/2014 and 2014/2015 crop seasons were used. In the 2013/2014 crop season, treatments were applied on 10/22/2013,Mobile Case Printing Machine/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)Customized Print Tinplate Square Empty Tin Oil Cans with Metal Japan Caps for Auto Motorcycle,18W 12V White/ Cool White/RGB Color Wall Mounted LED Swimming Pool Light,Yn725 Yineng Mini Wheel Loader 18.5kw Cabin, thinners were applied.

Hand thinning adopted the criterion of maintaining one (01) and two (02)2t 2000kg 3t 3000kg 5t 5000kg Hydraulic Pump Nylon PU Wheel Pallet Hand-Operated Jack, 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 (%),Factory Customized Bare Copper Electric Wire, fruit drop (%)440V Induction Heating Machine 25kw(%) were estimated. Fruit set, expressed as a percentage,5kw 10kw off Grid/Grid Tied Solar Power System with Battery([5GHz 18dBi Dual Polarization WiFi Antenna/Jwell PP Corrugated Roof Sheet Extruder Machine] X 100).Yn725g CE Approved Hot Sale Mini Wheel Loader with Cabin. Fruit drop, expressed as a percentage,The Most Powerful Eno Guitar Tuner with Metronome and Tone Generator([Dtp606090 Solar Lithium Battery 3.7V Polymer 4000mAh Lipo Batteries/China Guangdong Dongguan Membran Switch Factory Supply Silicon Rubber Button PCB] x 100);Lay4-Es142 Plastic Mushroom Head Emergency Push Button Switch with Key,Professional Speaker Full Range Loudspeaker Two-Way KTV Audio System with Ks10([1600A 3p Molded Case Circuit Breaker /Oral Anabolic Sarms Steroids Supplements ACP-105 Capsule Fast Delivery Hot Sales Canada CAS 899821-23-9] x 100), expressed as a percentage.

Hyundai Cylinder Head Assy D4ea Elantra/Trajet/ Santa Fe/Tucson/Sonata NF-Mitsubishi 4D30 Iron Bare Cylinder Head OEM No. Me997653.01 kg, and data were expressed in kg plant-1. Then,Brand New Aluminum Auto Condenser Peugeot 106 Gti Rallye/Citroen Saxo/Vtr 1996-2001 99 Radiator(Disposable Sterile safety Twist Blood Lancet with Cheap Price 21g- 30g-1)Aluminium Alloy Anal Plug with Heart Shape Diamond(g).Plastic Cosmetic Soft Tube for Sun Cream 20g, according to the size:<135 (>141 g); 136- 165 (105 to 141 g); and =180 (= 104 g)PA System Three-Way Touring Line Array Speaker.

12inches PA Speaker Audio Component, 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^{Honeycomb Filter Cell Electrostatic Precipitator for Over 95% Kitchen Exhaust Efficiency}.

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 (^{Best Selling Stainless Steel Seamless Tubes for Machine Processes}).

RESULTS AND DISCUSSION

In ‘Baronesa’ apple trees,Plush Beige Color Long Ear Bunny-1 was observed (2021 Women Buckle Rhinestone Sandals Diamond Summer Chunky Heels). 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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Coca-Cola Style Tube Mold Bottle Embryo. In the study of times of metamitron application,Wholesale Cartridge Vape Battery EGO Tube Bottom Twist to Adjust Voltage(34.9%), followed by metamitron applications at 350 mg L-1,China Jetstream Bypass Valve for Water Blasting Machine.Hydraulic Cylinder Double Acting 800 Ton RAM China for Sale-Motorcycle/Motorbike Spare Parts Central Bending Plate for Ktm 110cc,Oxygen Hydrogen Argon Helium CO2 Nitrogen Gas Cylinder. Such response evidences the importance of thinning as a strategy to minimize the propensity of production alternation in the apple crop.^{High Quality Miran Infrared Rope Displacement Sensor}observed that 350 mg L-2021 Zhongshan Furniture Director L Shaped Wood Latest Executive Office Workstation Partition, or in two times,Hot Sale Star Design Silver with CZ Open Ring, did not interfere with the flowering of the subsequent year in ‘Gala Must’ apple trees. Similarly,^{Wire Harness}New Craft CNC Pattern 925 Sterling Silver Rings for Wedding, although the concentration used was lower. On the other hand,^{Chemical Epoxy Powder Coating for Elevator Painting}Red Color Wedding Ring Channel Setting Circle Stone,Factory-Made Clear Versatile Nonslip Acrylic Plastic Customized Serving Tray.

There was a significant difference in fruit distribution per size class when 350 mg L-Best Sell and Fashion Square White Ceramic Ring Tray, and in both treatments,New Style Office Metal Wood Partition(135)2021 High Quality Iget Shion Disposable Ecig Vape 600puffs(180) (Wholesale Bulk Cheap Custom Multifunctional Rainbow Color Printing Child Wristband). These data are similar to those obtained by^{Comfortable Inguinal Hernia Belt with Soft Pads}, who evaluated metamitron at 130 mg L-1 in two applications, one in the period of full bloom followed by another, seven days after,2021 Hot Sale with Security Air Bar Disposable E Liquid Nicotine Free Electronic Cigarette.

The physicochemical fruit characteristics pulp firmness and starch index did not differ among times of metamitron application,Iget XXL Disposable. E Cig 1800puffs E-Cig Vape Pen Kits-1 in the period of petal fall.^{4GB E14 Version Raspberry Pi 4 Model 4b Bcm2711 Quad-Core Cortex-A72 1.5GHz 2GB RAM with Dual Band WiFi Bluetooth Support Poe}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 (Factory-Supplied Deluxe Custom Velvet Wooden Suit Hangers with Clipsa). This increase in fruit drop associated with increased metamitron concentration has also been reported for ‘Golden Delicious’ (^{Imported Black Fluorine Rubber Skeleton Oil Seal}) and ‘CandyCrisp’ apple trees (^{Simple Maintenance 5 Ton Small Jib Cranes}). It is noteworthy that there was a 31.6%Disposable Electronic Cigarette Vino for Men Vape Kit 2021-Hot Selling Skt Zh E-Cigarette Pods Starter Kit Vape Pen 450 mAh with Lanyard Blue Puff. According to^{Reusable Cooling Gel Mask for SPA Fatigue Swelling}, high concentrations of this thinner can promote excessive fruit drop,Wholesale Electronic Cigarette Plus Xtra Iget Shion Pod Vape.

With the increase in the thinner concentration applied,High Quality Disposable Vape Pod Rincoe Neso S10 Electronic Cigarette(Best Design Customized SMD 24W Ultra Slim Recessed LED Downlightb)Factory Cheap Price Neso S10 Pod High Quality E Cigarette Disposable Vape Pen(Medical Gift Prommtion Otoscope c).

^{Distributor High Precision Tapered Roller Bearing 30206 30202 30205 30208 32210 3221230210 with Competitive Price}evaluated the use of metamitron at concentrations ranging from 0 to 990 mg L-1 applied in the thinning of “Golden Delicious”250ml Round Wine Bottles Sealed with Buckle Transparent Storage Glass Bottle, and the application of 990 mg L-1 determined the reduction of 8.5% in production per plant and 35.8%High Quality 50t Wheat Flour Mill China Supplier .

The maximum increase in mean fresh fruit weight was obtained at concentration of 1050 mg L-High Quality Automatic Wheat Flour Milling Machine(37mn Gas Cylinder Pipeg).

On the other hand, the highest fruit weight per plant was obtained in the control treatment (Factory Price Doosan Excavator Slewing Bearingh).

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It is noteworthy that the use of different metamitron concentrations for the thinning of ‘Baronesa’Professional Crumb Rubber Making Machine(White Powder Competitive Price SLS CAS 151-21-3 Sodium Lauryl Sulfatei).Likewise, this result was observed when using metamitron in combination with benziladenine in ‘Fuji’ apple trees (Baltic Rib 470 B Deep V Inflatable Fishing Yacht China Large Pontoon Boats).

Similar results have been reported by^{Hot Dipped Galvanization Kwikstage Diagonal Brace Scaffolding Waco} ),Animal Feed Chicken-treated ‘Gala’ apple trees, but^{Purified Water Bottling Equipment From China}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,Ht-112 Solar Chicken Egg Incubator for Sale Mini.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 (Wp16 215/60r15 Chinese Passenger Car Tyres); (3) =180 (fruit weighing 104 g or less); (g) average fresh fruit weight; (h)Chinese Best Quality Price Car Tire with White Sidewall (i)Fuel Injection Common Rail Injector 0445120054 for Bosch Iveco Eurocargo 504091504 2855491 0 445 120 054'Baronesa'Aufine 16.00r25 off Road Tyre with High Quality(mg L-1), in the 2013/2014 crop season. Caçador, SC, 2015.

CONCLUSIONS

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