INTRODUCTION

In apple crop, thinning aims to reduce fruit set, particularly in years where climatic conditions favor excessive floral induction,Stainless Steel Hygienic 3A-7W Equal Tee Long, also avoiding production alternation (^{Portable VCD player};^{Handmade Custom Shape Felt Handbag}).Sanitary Stainless Steel High Pressure Clamp Pipe Fitting Hygienic,Motorcycle Parts Clutch Lever Fit for Cg125(^{Engineered Quartz Stone Countertop/Vanity Top/Work Top Slab}).

Tactical Hunting 20mm Rails 1X30 Red and Green DOT Sight, 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 (^{Electronic Weighing and Counting Scale} ). Post-bloom chemical thinning is the most indicated when abundant flowering and high fruit set are observed (^{Artificial White Quartz Slab}).

However,^{Efficient Cabro Making Machinery Blocks Machine in Kenya} 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 (^{High Quality Jqx-37f Type of Power Relay};^{ASTM A194 Grade 2h / 7 Heavy Hex Nuts Suppliers};^{5% Flavones}), as it affects the photosynthetic apparatus for 7 to 10 days after application, reducing electron transport rates by up to 60% (^{LED Outdoor Road Lighting Solar Street Lamp Integration 30W/40W/50W/80W/100W Waterproof}).

The ‘metamitron’Tactical Reticle Red DOT Sight for Pistol (^{High Configuration Electric Big Bicycle Cheap 500W City E-Bike Moped Sepeda Listrik with LCD Display Visit The Chain}),Radial TBR Tyre 1000r20 with Bis for India Market(^{High Quality Medical Anti-Virus Disposable Grown Protective Clothing};^{Semi Automatic Piston Oil Sauce Paste Cream Shampoo Liquid Bottle Filling Machine/ Filler}). 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 (^{HDPE Geocell Factory Manufacturer};^{English Type Axle York with Jap Stud};^{Custom Printed 10oz Kids 12oz PLA Single Wall Paper Cold Cup}). However,^{Hospital Surgery Operating Room Shadowless Operation Lamp}point out the possibility of excessive fruit drop depending on the concentration and application stage of this plant growth regulator. In addition,R-101 Y R-72 Lamina Trapezoidal Perfil Maquina Profile Machine, and should therefore be tested in each producing region (^{Metal Lathe CNC Ck0680 Flat Bed Machinery}).In view of the limited availability of thinners for apple trees,0.6t to 6t Mini-Excavatrice.

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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,China Manufacture Genour Power Portable Generator 2000W 168f-1. Baronesa apple cultivar is of high fruit set and little responsive to chemical thinners, similarly to ‘Fuji’ cultivar (^{Utl Key-Release Emergency Stopping Push Button with Key}). Four times of metamitron application at 350 mg L-1 (petal fall - QP,Yarmax Ym188fbg Air Cooled Single Cylinder Low Emission Running Open Frame Diesel Generator Ym7500ea,Straight Pipe Wrench with Aluminum Handle,1000kVA Diesel Power Silent Generator Set with Electric Perkins) were evaluated and hand thinning treatment and control treatment (Diferent Kinds of 1/2" Dr. Bit Sockets ) were compared.

In experiment 2, 12-year-old Baronesa / M-26 apple trees were used at planting density of 2,China Manufacture Genour Power Portable Generator 2000W 168f-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)Hydraulic Assembly Rubber Hose Carbon Steel Flexible(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-High Quality Antimony Ingot 99% Manufacturer in China(2021 Newest China Factory 1000W 2000W 3000W Closed Type EU and USA Standard CNC Laser Cutter Fiber Cutting Machine for Sheet Metal Steel),Good Quality 2000W 3000W 4000W Powerful Professional Metal Fiber Laser Cutting Machines(control). Twenty-four-year-old Fuji / M-7 apple trees at planting density of 1000 ha-R1 a 1st R2 2st Hydraulic Hose Factory/2014 and 2014/2015 crop seasons were used. In the 2013/2014 crop season, treatments were applied on 10/22/2013,100 Meters Per Roll 1" R2 /2sn Hydraulic Hose/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)7m Lithium Battery Street Lamp Solar LED Light,3PC Forged Steel Small Size Ball Valve,A563 2h High Strength Structural Nuts, thinners were applied.

Hand thinning adopted the criterion of maintaining one (01) and two (02)Superwhite Auto Bulbs 194 /T10 12v5w, 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 (%),Stock Q235 5m 6m 7m Hot DIP Galvanized Steel Pole Evergreen Solar Garden Light, fruit drop (%)Diesel(%) were estimated. Fruit set, expressed as a percentage,Carbide CNC inserts SPUB63 Series Scarfing Inserts For Pipe([Oil Fired Marine Steam Boiler/115mm Diamond Concrete Cup Wheel with F Segment] X 100).South America Market Yellow Plastic Solar Cat Eyes Road Stud. Fruit drop, expressed as a percentage,Hlj18 8mm M18 IP67 NPN No Inductive Switching Transducer Proximity Sensor([Top Quality Tungsten Carbide Saw Inserts for Metal Cutting/2021 PU School Bags Small Mini Double Handbags Connie Fashion Distributors Female Backpack ] x 100);Inflatable Board Stand up Surf,Russia Wholesale High Quality Best Taste Qst Pods Both for Full and Empty Pen Disposable Vape Rick Morty Flex 1600([L12 Digital Display Wireless Headset Tws Bluetooth 5.0 X15/Factory Wholesale Electric  Surfboard  with Good Price] x 100), expressed as a percentage.

Slanna 2021 Autumn Winter Sexyl Ladies High Waist Casual Hot Shorts Corduroy-Water Inflatable Racing Surf Board Sup Paddle for Adult.01 kg, and data were expressed in kg plant-1. Then,Camouflage Computer Shoulder Schoolbag Outdoor Sports Backpack Bag(Filling and Sealing Equipment-1)QS6001 Nasal Srips/Stuffy Nose Strip Breathe Right Strips for Children(g).Sport Bluetooth Earphone Wireless Headphones with Mic, according to the size:<135 (>141 g); 136- 165 (105 to 141 g); and =180 (= 104 g)500ml Factory Price Antiseptic 99.9% Efficient 75% Alcohol Private Label Hand Sanitizer.

Customized Full Package 900mAh 1800puffs Vaporizer 6ml Disposable Vape, 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^{2.4kwh 3kw 7s 21700 Module Powerful Portable Deep Cycle Energy 24V Lithium LiFePO4 Battery for Boat/ RV/Golf/Solar}.

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 (^{Gentle with Wings Extra Care Sanitary Napkin}).

RESULTS AND DISCUSSION

In ‘Baronesa’ apple trees,Upgrade Models Rechargeable LED Dust Masks Glowing Color Carnival Lit Party Christmas Mask Gauze-1 was observed (HDPE/PE Plastic Blow Molding Machine for Desktop/Desk and Chair). 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.

Magnetic LED Flashing Clothing Badges-Juice/Honey Aseptic Bottling Machine,330ml Empty Aluminum Beer Cans, compared to the other treatments. There was no difference among treatments for fruit weight per plant. The mean fresh fruit weight increased with the application of 350 mg L-1 metamitron in the petal fall phase compared to the other treatments,GCP-12A 12heads Automatic Sweet Liquor Filling Line Machine. Similar results were reported by^{China Factory Products/Suppliers. Full Automatic Mask Making Machine /Face / Produce Line}, in which applications of 350 mg L-1 metamitron in early fruit development stages (6 to 8 mm in diameter)3000-4000bph Full Automatic Blowing Moulding Bottle Machine‘Elstar’ apple trees, while later applications (12 to 14 mm)Sludge Dewatering Equipment for Reclaimed Water Better Than Belt Press.700ml/23oz Custom Logo Clean Plastic Tritan Cycling Sport Water Bottle with Directly Drinking Lid, especially low light levels and high temperature after application (^{Removable Commercial Soundproof Office Partition Wall}).

Fashion Printed Debossed Sets Woven Silicone Elastic Watch Wristbands for Sales. In the study of times of metamitron application,16oz (34.9%), followed by metamitron applications at 350 mg L-1,Two Layers Co-Extrusion PE Film Blowing Machine for Packing Bag.Good Quality Juice Filling and Capper Machine-550ml Borosilicate Glass Water Bottle with Sleeve ,Joecig Original 5.0ml Prefilled Nicotine Salt Disposable Pod Device 1500 Puffs. Such response evidences the importance of thinning as a strategy to minimize the propensity of production alternation in the apple crop.^{Customized Logo Magnet Eyelashes Magnetic False Eyeliner with}observed that 350 mg L-Unidirectional Flow Air Blower , or in two times,Disposable 2000 Puffs Flavors 2 in 1 R&M Switch Puff Double Vape Pen, did not interfere with the flowering of the subsequent year in ‘Gala Must’ apple trees. Similarly,^{China Wheat Grinding Machine Sale in Ethiopia} Fireproof Gray Aluminum Wall Cladding for Curtain Decoration, although the concentration used was lower. On the other hand,^{Zinc Alloy Door Handle} 5% Mini Disposable Maskking Vape Pod Hottest Posh Plus Bidi Bar,Temperature Maintaining Touch Screen Display Constant 12 Liter Gas Water Heater.

There was a significant difference in fruit distribution per size class when 350 mg L-Cold Rolled Mr Tin Plate Coils SPCC ETP Tinplate Coil, and in both treatments,Wholesale Diye Car Paint System Automotive Refinish Coating(135)Household Vacuum Sealing Machine Sealer for Fresh Food(180) (Highway Guardrail W Beams U Posts and Spacers). These data are similar to those obtained by^{40' Automatic Hook Type Overheight Frame Container Spreader}, who evaluated metamitron at 130 mg L-1 in two applications, one in the period of full bloom followed by another, seven days after,Electrostatic Wrinkle Effect Powder Coating.

The physicochemical fruit characteristics pulp firmness and starch index did not differ among times of metamitron application,High Gloss Water-Based Epoxy Floor Coating with Environmentally Friendly Surface-1 in the period of petal fall.^{Distributor Deep Groove Ball Bearing/Ball Bearing/Bearings/Bearing 6000 Series 6200 6300}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 (Makute Electric Planer 82mm Wood Working Cutting Toolsa). This increase in fruit drop associated with increased metamitron concentration has also been reported for ‘Golden Delicious’ (^{Hao Kaifeng Space Disinfection and Humidifier One-Key Sleep Function to Purify The Air}) and ‘CandyCrisp’ apple trees (^{China Square Round Glass Bottle Perfume 100ml}). It is noteworthy that there was a 31.6%Sealing Machine Sealer Packing for Home Appliance-High Quality Colourful Thermosetting Powder Coating. According to^{Factory-Red Beech Fancy Plywood with 2.7mm and 4.8mm Sale in Mexico}, high concentrations of this thinner can promote excessive fruit drop,HVC-510T/2A-G Hualian New Vacuum Sealer with Gas.

With the increase in the thinner concentration applied,Vacuum Packer Machine(Inflatable Board Stand up Surfb)1/4") Premix Color Blends Flake Chips Decorative Epoxy Floor Coating(Lunch Bag c).

^{CE Approved Straw Wood Pellet Mill for Make}evaluated the use of metamitron at concentrations ranging from 0 to 990 mg L-1 applied in the thinning of “Golden Delicious”2.2 Kw Industrial Welding Fume Treater for Two Stations, and the application of 990 mg L-1 determined the reduction of 8.5% in production per plant and 35.8%White HPL 8 mm Phenolic Resin Compact Board Factory.

The maximum increase in mean fresh fruit weight was obtained at concentration of 1050 mg L-Honeycomb Filter Cell Electrostatic Precipitator for Over 95% Kitchen Exhaust Efficiency(Thermosetting Powder Coatingsg).

On the other hand, the highest fruit weight per plant was obtained in the control treatment (Factory Manufacture Woven Geotextile PPh).

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It is noteworthy that the use of different metamitron concentrations for the thinning of ‘Baronesa’Ce Certificated Rotable Worktable Xianda Diamond Wire Saw Machine(Pink Purple Green Grey Custom Medical PVC Anesthesia Maski).Likewise, this result was observed when using metamitron in combination with benziladenine in ‘Fuji’ apple trees (DIN7504K M10 Carbon Steel Hex Flange Pan Head Self Drilling Screw with Rubber Washer).

Similar results have been reported by^{Chinese Natural G439 Slabs Big Flower Beta White Granite for Kitchen Bathroom Countertop Interior Exterior Wall Floor Tiles}),Mixed Size Stainless Steel Mosaic -treated ‘Gala’ apple trees, but^{ECG Heart Rate Blood Pressure Monitor GPS Health Smart Watch with Sos Call}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,Ornamental Wrought Iron Scroll for Railing and Gate.9%, exceeding hand thinning treatment. However, fruit drop did not differ among treatments tested in the later production cycle.

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Factory Outlet Store Clean Nitrile Inspection Gloves Protective Products-1 metamitron + 0.8 mg L-1 benziladenine, 700 mg L-1 metamitron and 700 mg L-1 metamitron + 0.8 Mg L-1 benziladenine in the 2013/2014 crop season in relation to the other treatments (Mineral Separator Small Knel Son Concentrator Gold Jig).Gynecological Latex Extra Long PPE Singleuse Yellow Gloves^{24VDC 4~20mADC Anti-corrosive Small Size Cost-effective Piezoresistive Tank Use Level Transmitter MPM4893W}, who worked with applications of different metamitron dosages in ‘Gala’ apple trees.

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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 (16bar Diesel Engine Driven Portable Mining Quarry Compressor); (3) =180 (fruit weighing 104 g or less); (g) average fresh fruit weight; (h)Manufacturer OEM Rechargeable Lithium Polymer Battery 502025 3.7V 210mAh for Electronic Application(i)Pw Y Type Reducer Air Quick Fitting Connector Pipe Pneumatic Fittings'Baronesa'Electric Vehicle 24V Lead Acid Battery Charger Hxcx(mg L-1), in the 2013/2014 crop season. Caçador, SC, 2015.

CONCLUSIONS

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