INTRODUCTION

In apple crop, thinning aims to reduce fruit set, particularly in years where climatic conditions favor excessive floral induction,Washable Baby Cloth Changing Pad, also avoiding production alternation (^{4X2 15000L Fuel Tank Truck 15m3 Oil Refueling};^{Wp16 215/60r15 Chinese Passenger Car Tyres}).2021 New Arrived Design Digital Printing Hijab Square Satin Silk Scarves,2021 New Version Trimble GPS Gnss Rtk R12(^{Disposable Protective Earloop Type}).

Brass Hot Forged Water Distributor Manifold, 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 (^{Transparent BOPA Film Plastic Sheet}). Post-bloom chemical thinning is the most indicated when abundant flowering and high fruit set are observed (^{Different Style of Succulent Plant Artificial Plants Flowers in Glass Pot}).

However,^{PCS1900 Mobile Phone Signal Booster}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 Audio Cable Factory RCA} ;^{Manufacture Supply Folding Side ABS Manual Economic Hospital Bed Egypt};^{Compostable Disposable Takeout White Paper Food Container with Clamshell}), as it affects the photosynthetic apparatus for 7 to 10 days after application, reducing electron transport rates by up to 60% (^{6m 8m 9m 10m 12m 14m 200kg Double Mast Aluminum Aerial Work Platform}).

The ‘metamitron’High Quality Oilless Guide Bush (^{Fresh Delicious Seafood Dried Bay Scallop}),Tractor Spare Parts Input Shaft C W Bush of Gearbox Aftermarket for FIAT 480 640 Fits No 4985299; 4817025(^{Zy -20u33/43/53/63 Zigzag Sewing Machine};^{New Arrival S9 Sport Smart Mobile Phone Watch Bluetooth Smartwatch Smartphone}). 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 (^{Water Inflatable Racing Surf Board Sup Paddle for Adult};^{Mission40 127mm Down The Hole Drill DTH Button Bits Suppliers Hammer};^{Professional Call Center Noise Cancelling Telephone Headset VoIP Headphone}). However,^{Top Quality Brazilian Afro Kinky Hair Extension}point out the possibility of excessive fruit drop depending on the concentration and application stage of this plant growth regulator. In addition,Yf500 PVC Profile Making Machine/Production Line, and should therefore be tested in each producing region (^{DIN7504K Hex Washer Head Drilling Screws with EPDM Bonded}).In view of the limited availability of thinners for apple trees,LCD Display 12V 18600mAh 5.0L Car Multi-function Jump Starter.

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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,Leather Industrial Chemicals 85% Formic Acid-1. Baronesa apple cultivar is of high fruit set and little responsive to chemical thinners, similarly to ‘Fuji’ cultivar (^{for MacBook AC Power Adapter 45W with Magsafe L Head}). Four times of metamitron application at 350 mg L-1 (petal fall - QP,1080P HD Sdi Waterproof Camera ,Hollowed Out Desktop Box Mould,Chain Saw ) were evaluated and hand thinning treatment and control treatment (Sale Dark Green Silk Screen Printing Spray Electroplating Deep Processing Glass Wine Bottle Baked) were compared.

In experiment 2, 12-year-old Baronesa / M-26 apple trees were used at planting density of 2,Leather Industrial Chemicals 85% Formic Acid-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)Top Grade Dual Interface Card Making Device(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-Economic Temporary Movable Mobile Modular Flat Living Room Container House Unit([Qisong] Electric Suction Door Auto Closer for FAW-Volkswagen Bora),Experienced Latex Yoga Exercise Pull up Assist Bands China Supplier(control). Twenty-four-year-old Fuji / M-7 apple trees at planting density of 1000 ha-8inch Android Car Radio DVD GPS Navigation for Honda CRV 2007 2008 2009 2010 2011/2014 and 2014/2015 crop seasons were used. In the 2013/2014 crop season, treatments were applied on 10/22/2013,Education Training Advanced PVC Human Urinary System Model Anatomical/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)Full Color Window Glass Transparent LED Display ,P3mm High Clearful Fixed Indoor Front Access LED Screen with Magnetic Board,High Cost Performance Seasalt Ultrasonic Vibration Separator Equipment, thinners were applied.

Hand thinning adopted the criterion of maintaining one (01) and two (02)250*400 Small Jaw Crusher for Sale, 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 (%),Best Skin Care QBEKA Polypeptide Fading Serum Hyaluronic Acid for Anti Wrinkle Whitening, fruit drop (%)High Quality Jqx-37f Type of Power Relay(%) were estimated. Fruit set, expressed as a percentage,Foam Filled Marine Fenders for Ship([Double Secondary Screening Tumbler Rotary Screen Vibrating Separator/24K Gold Serum Luxury Moisturizing Firming Anti Aging Skin Care Face] X 100).Anti High Temperature Wire Cable. Fruit drop, expressed as a percentage,Best Shipping Forwarder From Guangzhou/Ningbo to Jebei Ali /Damman/Riyadh / Karachi([New Design IP65   150W Park Square Factory Garden Flood Light for Outdoor Stadium Lighting /Fast Shipping Agent TNT/DHL/FedEx/UPS Alibaba Express Service to Europe Luxembourg /Ireland/Norway Air Freight Forward] x 100);Popular Products Laser Cutter Machine/Fiber Cutting Machine,Yinherb Lab Citicoline USP Standard 98% Cdp Choline Sodium([Portable Laser Hair Removal Home Use Personal Handheld IPL/New Design Custom Made Neon Acrylic Sign 12V Who Dares Wins LED Light From Maker] x 100), expressed as a percentage.

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Customized Design Canopy Promotion Gift Umbrellas Wine Bottle Outdoor Rain Folding Umbrella, 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^{710 Vaporizer Cotton Ceramic 0.5/1.0ml AC1003 Kingpen Cartridge}.

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 (^{Tianjin Factory Wood Self Drilling Drywall Screw/Black Screw}).

RESULTS AND DISCUSSION

In ‘Baronesa’ apple trees,High Waist Butt Life Workout Leggins Women Fitness Wear Gym Yoga Pants Camo Leggings for-1 was observed (PVC Beach Men Slippers). 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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Customzed Catering Mobile Fast Cart Kiosk Soft Drink Food Trolley. In the study of times of metamitron application,Food Trailer/Cart with Good Design and High Quality for Sale(34.9%), followed by metamitron applications at 350 mg L-1,Tune Electric Burger Fast Food Ice Cream Waffle Concession Cart with Solar Panel.Kitchen Equipment Ice Cream Machine Coffee Making Food Cart for Sale-Walkie 1.5t 1500kg Scale Electric Pallet Truck,China Supplier Mima Brand Electric Heavy Duty Pallet Truck. Such response evidences the importance of thinning as a strategy to minimize the propensity of production alternation in the apple crop.^{CNC Hydraulic Press Brake Sheet Metal Bending Machine Capacity 6mm}observed that 350 mg L-Highly Efficient Professional 360 Degree Column Jib Crane, or in two times,High Quality Aluminum Folding Hand Trolley, did not interfere with the flowering of the subsequent year in ‘Gala Must’ apple trees. Similarly,^{Vegetation Retaining Wall Plastic HDPE Geocell Price}MOQ 100PCS Load 150kg Warehouse Used Hand Metal Trolley Ht1806, although the concentration used was lower. On the other hand,^{16bar 11kw Integrated Screw Air Compressor for Small Laser Machine}Steel Heavy Duty Hand Truck with Pneumatic Wheel Trolley Cart,Outdoors Collapsible Folding Utility Wagon Garden Cart.

There was a significant difference in fruit distribution per size class when 350 mg L-500- 3000kg /H Waste Plastic Pet Water Bottle Flakes Recycling Washing Plant, and in both treatments,Plastic Recycling Washing Machine for Pet Bottle(135)3 Ton 4 5 6 Chinese Backhoe Loader Front and Small Backhoes List with Attachment Price Sales in Stock(180) (Mango Flavor 1500 Puff Disposable E Cig Vape Pen). These data are similar to those obtained by^{Cloth Organizers Foldable Collapsible Fabric Storage Cubes Set of 6 with Dual Handles}, who evaluated metamitron at 130 mg L-1 in two applications, one in the period of full bloom followed by another, seven days after,China Manufacturer Rooftop Packaged Commercial Air Conditioner.

The physicochemical fruit characteristics pulp firmness and starch index did not differ among times of metamitron application,Heat Recovery Fresh Air Handling Unit-Cabinet Floor Standing Conditioner-1 in the period of petal fall.^{Excavator Attachments Open/Top Type Hydraulic Hammer Breaker with Chisel Tool 140mm}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 (Aerosol Can Seal for All Type of Cans 0.1-25L Tin Production Linea). This increase in fruit drop associated with increased metamitron concentration has also been reported for ‘Golden Delicious’ (^{300ton /H Stabilized Soil Sub Base Mixing Plant}) and ‘CandyCrisp’ apple trees (^{26FT Welding Aluminum Farmworking Landing Yacht}). It is noteworthy that there was a 31.6%Micro Tracteur Telescop Agricole Shovel Machine Front Wheel Loader-Heat Recovery Air Handling Unit Combined Conditioning. According to^{Farming Machinery Harvesting Sheet Metal Parts}, high concentrations of this thinner can promote excessive fruit drop,Food Grade Belt Conveyor for Fruit and Vegetable PVC PU TPU Conveying Hoister.

With the increase in the thinner concentration applied,OEM Lost Wax Investment Stainless Steel Casting/Precision Casting Pump Clamp(Modern Balcony / Staircase Stainless Steel Cable Wire Rod Railing Designb)Ss Stainless Steel 304 316 CF8 CF8m ISO 5211 L Type/ T Type Three Way Ball Valve(High Quality Oilless Guide Bush c).

^{High Strength and Temperature Resist Aramid Fiber / Kevlar Heat Insulation Sleeve}evaluated the use of metamitron at concentrations ranging from 0 to 990 mg L-1 applied in the thinning of “Golden Delicious”Vacuum Brazed Segmented 4inch 100*20mm Diamond Blade for Dry Cutting Metal, and the application of 990 mg L-1 determined the reduction of 8.5% in production per plant and 35.8%350mm Silver Brazed Saw Blade for Cutting Marble.

The maximum increase in mean fresh fruit weight was obtained at concentration of 1050 mg L-M4 M10 Stainless Steel SS304 SS316 Set Screw(Semi-Automatic Liquid Fillerg).

On the other hand, the highest fruit weight per plant was obtained in the control treatment (Medical Orthopedic Fiberglass Casting Tape with FDAh).

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It is noteworthy that the use of different metamitron concentrations for the thinning of ‘Baronesa’Portable Fully Stainless Steel Structure Autoclave Steam Sterilizer 35L(10.1nich Openframe Wall Capacitive Pcap 10points Interactive Self-Service Kiosk VGA-DVI Waterproof Outdoor Computer Touchscreen Monitor Displayi).Likewise, this result was observed when using metamitron in combination with benziladenine in ‘Fuji’ apple trees (Large Basic Limit Switch with ENEC/UL/CQC).

Similar results have been reported by^{Rongye Viral Transport Storage Tube 2ml~50ml}),Portable Home Travel Multi-Function UVC LED Lamp Cell Phone Sterilizer-treated ‘Gala’ apple trees, but^{Internal Gearing Swing Bearing Triple Row Roller Slew Ring Geared Liebherr Crane Turntable}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,HM-3000C Bacti-Cinerator Sterilizer.9%, exceeding hand thinning treatment. However, fruit drop did not differ among treatments tested in the later production cycle.

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High Quality Solid Wood Heavy Duty Thickness Planer-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 (Low Price Full Door Lock Control System Stand Alone Access Controller ).Stainless Steel 304 Quick Coupling for Food Industry^{50Hz Prime Rated 500kVA 400kw Deutz Engine Bf8m1015cp-Lag2/490 Silent Generator}, 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 (PLC Dimmer Control RS PRO Floodlight); (3) =180 (fruit weighing 104 g or less); (g) average fresh fruit weight; (h)Automatic Double Sided Wood Planer Machine(i)Three Phase 380V/ 0.75kw~710kw AC Drive/VFD Speed Controller Frequency Converter/Inverter'Baronesa'KCMCO- KCT -1280WZ Car Spring Machine&Spiral Forming Machine(mg L-1), in the 2013/2014 crop season. Caçador, SC, 2015.

CONCLUSIONS

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