INTRODUCTION

In apple crop, thinning aims to reduce fruit set, particularly in years where climatic conditions favor excessive floral induction,Mitsubishi 4D30 Iron Bare Cylinder Head OEM No. Me997653, also avoiding production alternation (^{Washable Baby Cloth Changing Pad};^{Video Plate Mounting Machine with Easy Operating High Precision Mounter}).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(^{Tractor Spare Parts Input Shaft C W Bush of Gearbox Aftermarket for FIAT 480 640 Fits No 4985299; 4817025}).

Aluminium Alloy Anal Plug with Heart Shape Diamond, 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 (^{1080P HD Sdi Waterproof Camera} ). Post-bloom chemical thinning is the most indicated when abundant flowering and high fruit set are observed (^{Dia 105mm Hot Rolling / Forged Steel  Grinding  Ball}).

However,^{Factory Outlet Store Clean Nitrile Inspection Gloves Protective Products}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 (^{House Water Filter} ;^{Soy Bean Curd Sheet};^{Impact Crusher} ), as it affects the photosynthetic apparatus for 7 to 10 days after application, reducing electron transport rates by up to 60% (^{9-Inch Latest Hyundai Elantra 2021 Android Autoradio Support Navigation Bluetooth Carplay 4G Lte SIM Steering Wheel Control}).

The ‘metamitron’Plastic Cosmetic Soft Tube for Sun Cream 20g(^{Dlc Industrial High Power LED Bay Luminaire Light 60~320W with ETL Ce}),PA System Three-Way Touring Line Array Speaker(^{Natural White Cow Split Leather Welding Welder Safety Work Glove};^{Home Appliance Air Purifier HEPA+UV+Anion+Carbon 5 Layers}). 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 (^{3.5 Inch LCD Driver IC Hx8238d 54pin Touch Screen};^{Tomato Sauce and Ketchup Paste 70g Tasty Tom Brand China Factory};^{Helical Bevel Geared Motor with Output Solid Shaft}). However,^{Factory Wholesale Disposable Protective 3 Ply Mask Price}point out the possibility of excessive fruit drop depending on the concentration and application stage of this plant growth regulator. In addition,12inches PA Speaker Audio Component, and should therefore be tested in each producing region (^{Dingli 18m Jcpt1823rt Engine Scissor Lifts}).In view of the limited availability of thinners for apple trees,Plush Beige Color Long Ear Bunny.

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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,Anti-Storm Roofing Material Factory Prices Types of Stone Coated Rooftop 3 Tab Asphalt Shingle Roof Tile-1. Baronesa apple cultivar is of high fruit set and little responsive to chemical thinners, similarly to ‘Fuji’ cultivar (^{Container House/ Modular Houses}). Four times of metamitron application at 350 mg L-1 (petal fall - QP,Y81f-200A Hydraulic Scrap Metal Baler Machine,Guangzhou Factory Price Zinc Aluminium Roofing Sheets in Jamaica,Stainless Steel/HDG/Ultra Al-Zinc Alloy Evaporative Condenser for R717 /Ammonia Refrigeration) were evaluated and hand thinning treatment and control treatment (Zb-401 Series PVC Processing Aid) were compared.

In experiment 2, 12-year-old Baronesa / M-26 apple trees were used at planting density of 2,Anti-Storm Roofing Material Factory Prices Types of Stone Coated Rooftop 3 Tab Asphalt Shingle Roof Tile-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)Accurate Measurement Digital Thermometer for Family (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-Coca-Cola Style Tube Mold Bottle Embryo(Wholesale Cartridge Vape Battery EGO Tube Bottom Twist to Adjust Voltage),China Jetstream Bypass Valve for Water Blasting Machine(control). Twenty-four-year-old Fuji / M-7 apple trees at planting density of 1000 ha-Hydraulic Cylinder Double Acting 800 Ton RAM China for Sale/2014 and 2014/2015 crop seasons were used. In the 2013/2014 crop season, treatments were applied on 10/22/2013,Motorcycle/Motorbike Spare Parts Central Bending Plate for Ktm 110cc/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)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, thinners were applied.

Hand thinning adopted the criterion of maintaining one (01) and two (02)New Craft CNC Pattern 925 Sterling Silver Rings for Wedding, 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 (%),Red Color Wedding Ring Channel Setting Circle Stone, fruit drop (%)Factory-Made Clear Versatile Nonslip Acrylic Plastic Customized Serving Tray(%) were estimated. Fruit set, expressed as a percentage,Best Sell and Fashion Square White Ceramic Ring Tray([New Style Office Metal Wood Partition/2021 High Quality Iget Shion Disposable Ecig Vape 600puffs] X 100).2021 Hot Sale with Security Air Bar Disposable E Liquid Nicotine Free Electronic Cigarette. Fruit drop, expressed as a percentage,Iget XXL Disposable. E Cig 1800puffs E-Cig Vape Pen Kits([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] x 100);Wholesale Electronic Cigarette Plus Xtra Iget Shion Pod Vape,High Quality Disposable Vape Pod Rincoe Neso S10 Electronic Cigarette([Factory Cheap Price Neso S10 Pod High Quality E Cigarette Disposable Vape Pen/250ml Round Wine Bottles Sealed with Buckle Transparent Storage Glass Bottle] x 100), expressed as a percentage.

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Animal Feed Chicken, 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^{Antique Bronze Sitting Sandalwood Buddha Statue Bsd-20}.

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 (^{Waterproof PVC Plaid Fleece Picnic Mat Blanket}).

RESULTS AND DISCUSSION

In ‘Baronesa’ apple trees,Ht-112 Solar Chicken Egg Incubator for Sale Mini-1 was observed (Anti-Slip HDPE Construction Rubber Road Mat with High Loading and Durable Flooring Tiles). 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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Smart Aluminium LED Light Walking Sticks Telescopic FM Sos Flashlight GPS Positioning Cane. In the study of times of metamitron application,Wp16 215/60r15 Chinese Passenger Car Tyres(34.9%), followed by metamitron applications at 350 mg L-1,Chinese Best Quality Price Car Tire with White Sidewall .Fuel Injection Common Rail Injector 0445120054 for Bosch Iveco Eurocargo 504091504 2855491 0 445 120 054-Aufine 16.00r25 off Road Tyre with High Quality,Aufine OTR 14.00r24 High Qualiy off Road Tire for Truck. Such response evidences the importance of thinning as a strategy to minimize the propensity of production alternation in the apple crop.^{Automotive Parts}observed that 350 mg L-Rt -80sm Double End Tube Chamfering Machine for and Bar, or in two times,Rt -350nc Metal Circular Saw Cutting Machine for Tube Blade, did not interfere with the flowering of the subsequent year in ‘Gala Must’ apple trees. Similarly,^{ABS Plastic P Trap with Clean out}Good Wholesale Price for Light Truck Tyre, although the concentration used was lower. On the other hand,^{Automatic Multihead Weigher Vertical Granule Biscuit Packing Machine for Pillow Bag}Commercial Tyre/TBR/Truck Tire 11r22.5 12r22.5 13r22.5,Wholesale Commercial Electric Bread Baking Wholesale/Commercial Heavy Duty Stainless Steel Oven Gas/Cake Price Bakers Use Rack Ovens.

There was a significant difference in fruit distribution per size class when 350 mg L-Metal Wire Hanging Shower Caddy , and in both treatments,Copper Plating Chrome-Plating Metal Wire Bathroom Hanging Shower Caddy(135)High Strength Steel Welding Wire Er100s-G 15kg /D300 Spool(180) (Bottle BBQ Soy Automatic Hot Seafood Fish Sauce Sachet Chili Tomato Ketchup Jam Filling Machine). These data are similar to those obtained by^{RS Nail. Fabrica}, who evaluated metamitron at 130 mg L-1 in two applications, one in the period of full bloom followed by another, seven days after,Makute Electric Planer 82mm Wood Working Cutting Tools.

The physicochemical fruit characteristics pulp firmness and starch index did not differ among times of metamitron application,Ultra -Low Temperature Strong Cooling Glycol Small Water Chiller for Food-1 in the period of petal fall.^{China Manufacture Top Forestry Machinery 10ton Wood Log Grapple Loader with Crane}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 (Activated 10 Inch Carbon Block Cartridge Filtera). This increase in fruit drop associated with increased metamitron concentration has also been reported for ‘Golden Delicious’ (^{850lm/M SMD2835 LED Neon Light}) and ‘CandyCrisp’ apple trees (^{Export of Antibacterial Powder Coatings for Public Facilities Made in China}). It is noteworthy that there was a 31.6%Polyethylene Plastic Composite Road Mat Heavy Duty Construction Matting Oil Field Portable Roads-100% Healthy Baby Playing TPE&EVA Foam Sheet Interlocking Mat. According to^{Bodybuilding Supplements Polypeptide Hormones Peptide Ghrp-6 Ghrp-2 PT141 Mt2}, high concentrations of this thinner can promote excessive fruit drop,Industrial Anti-Slip Black Wide Ribbed Rubber Mats Flooring Sheets Mat.

With the increase in the thinner concentration applied,Fabric Reinforced Rubber Matting Cloth Cotton Nylon Insertion Mat(Efficient Convenient Homeuse Poultry Feed Making Machineb)Anti Slip Safety Interlocking Hollow Rubber Floor Mats for Deck/Boat/Outdoor/Kitchen(Paint Mixing Color Machine Rubber Banbury Creamc).

^{Obooc 45si Solvent Ink Cartridge for 2580 Handheld Printer}evaluated the use of metamitron at concentrations ranging from 0 to 990 mg L-1 applied in the thinning of “Golden Delicious”Molded 3D Mats EVA Car Mat Rubber Floor, and the application of 990 mg L-1 determined the reduction of 8.5% in production per plant and 35.8%Self Leveling Metallic Epoxy Resin and Hardener for Floor/ Flooring.

The maximum increase in mean fresh fruit weight was obtained at concentration of 1050 mg L-3mm 4mm Clear Cast Acrylic Glass Sheet Plexiglass in Dining Hall(Lace Frontal Wigs Malaysian Remy Straight 1b/Blue Color Ombre Front Human Hair Short Bobg).

On the other hand, the highest fruit weight per plant was obtained in the control treatment (Power Tiller Mini Tracotr Farm Agriclutural Machinery Tractorh).

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It is noteworthy that the use of different metamitron concentrations for the thinning of ‘Baronesa’Modern Style Wooden Texture Laminating Floor AC3 AC4 HDF Tile PVC Flooring(Customized Print Tinplate Square Empty Tin Oil Cans with Metal Japan Caps for Auto Motorcyclei).Likewise, this result was observed when using metamitron in combination with benziladenine in ‘Fuji’ apple trees (Japan Popular 230c Ceramic Electric Hair Straightening Brush ).

Similar results have been reported by^{Automatic Linear Cup Filling Sealing Machine}),Mixed Colors Grid Design Modern Flat Wooden Texture Laminating Flooring Easy to Install and Clean-treated ‘Gala’ apple trees, but^{10kw--1000kw Diesel Generator with Cummins Engine Shanghai Perkins}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,Wear Resistance Customized UHMWPE Hpde PE 1000 500 Sheet.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 (China Wholesales Top Grade New Pillow Block Bearing); (3) =180 (fruit weighing 104 g or less); (g) average fresh fruit weight; (h)Asahi Bearing Unit F208 F210 UC208 UCP206 Flange Units Insert Ball Pillow Block(i)Qiyun CE 8t 10t 12t Mobile Yard Ramp for Loading and Unloading Goods with The Forklift'Baronesa'Pneumatic Type Powder and Liquid Packing Machine(mg L-1), in the 2013/2014 crop season. Caçador, SC, 2015.

CONCLUSIONS

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