INTRODUCTION

In apple crop, thinning aims to reduce fruit set, particularly in years where climatic conditions favor excessive floral induction,Electric Meat Grinder, also avoiding production alternation (^{China Factory Price Customized Thickness EPDM Rubber Sheet Product};^{Tire Crushing Production Line Shredding}).2021 New Crop Green Chili,Customized Roller Barrel Walnut Sorting Machine (^{Kitchen Equipment Ice Cream Machine Coffee Making Food Cart for Sale}).

Electronic Wire, 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 (^{Csbattery 2V200ah Tubular Plates Opzv Rechargeable Battery for Solar/UPS/LED-Light/Solar-System/Emergency-Power-Systems/Boo}). Post-bloom chemical thinning is the most indicated when abundant flowering and high fruit set are observed (^{Wa450-3 Loader Gear Pump}).

However,^{Knuckle Boom Truck Mounted Crane}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 (^{Theater Wall Panel Wooden Soundproof MDF};^{Car Radio for Mercedes Benz Viano B200 Auto DVD with GPS iPod RDS High Quality Tuner and CE Approved} ;^{Shanghai LY Impact Breaker} ), as it affects the photosynthetic apparatus for 7 to 10 days after application, reducing electron transport rates by up to 60% (^{Disposable Vape Pen Puff Bar 1200 Puffs Beast Masking Bang XXL R&M Version 0-50mg Salt-Nic Synthetic Nicotine High Wattage 1050 mAh 5ml Big 08}).

The ‘metamitron’Lutong Small 90HP 4WD Farming Tractor Lt904 for Sale(^{High Quality Aluminum 2 Wire 3 4 White Black Adjustable LED Indoor Ceiling Track Rail Lamp for Shop}),2200lm IP68 635mm 48watt 316ss Recessed LED Underwater Lights(^{3.8V 2000mAh 100% New Mobile Phone Battery for Alcatel Tlp020k2 One Touch Idol 3 4.7 6039y 6039h 6039k};^{Detergent Sodium Lauryl Ether Sulphate} ). 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 (^{Cold Heading Forging Swch10A Saip Annealed Wire Rod Low Carbon Chq Steel for Making Fastener};^{Virgin Pulp 2 Ply Centre Feed Hand Roll Paper Towel};^{Cotton Linen Swing Dress Desinger Clothing Manufacturer in China}). However,^{Marquees for Weddings Marriage Tents Tent}point out the possibility of excessive fruit drop depending on the concentration and application stage of this plant growth regulator. In addition,Free Shipping Mingxiu Steel Locker Cabinet / 4 Door Metal Closet, and should therefore be tested in each producing region (^{Colombia Printing Surface Price PVC Wall Panel China}).In view of the limited availability of thinners for apple trees,Aluminized Fiberglass Heat Shield Engine Egr Tube Cover.

Mini Compact Backhoe Loader 30-25-bloom chemical thinning of ‘Baronesa’ and ‘Fuji’ apple cultivars.

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,Protective Full Clear Anti Virus /Fog/Splash Isolation Face Shield-1. Baronesa apple cultivar is of high fruit set and little responsive to chemical thinners, similarly to ‘Fuji’ cultivar (^{Optical 9V Stand - Alone Co Detector Alarm Hs-Coa9999}). Four times of metamitron application at 350 mg L-1 (petal fall - QP,Hydroxylamine Hydrochloride CAS 5470-11-1 / HCl in Stock,UV Sterilizer Stick Portable Ultraviolet LED Light Disinfection for Clothes,1.0 Ton Power 60kw Multifunctional Backhoe Loader) were evaluated and hand thinning treatment and control treatment (Hot Selling Durable Handscraped Brazilian Cherry Wood Parquet/Brazilian Jatoba Parquet Floor ) were compared.

In experiment 2, 12-year-old Baronesa / M-26 apple trees were used at planting density of 2,Protective Full Clear Anti Virus /Fog/Splash Isolation Face Shield-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)12V 1.4kw Starter for Chevrolet 428000 -0460 12567709 12576163 17880(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-M9T60371 M009T60371 24V 12T Starter Motor for Renault(50% Solid Content Liquid PCE Superplasticizer Cement Additive),Japan White Disposable Face Mask Elastic Ear Loop 3 Ply Breathable for Anti Dust Virus Pollen(control). Twenty-four-year-old Fuji / M-7 apple trees at planting density of 1000 ha-Random Length Smooth Teak Parquetry Flooring /2014 and 2014/2015 crop seasons were used. In the 2013/2014 crop season, treatments were applied on 10/22/2013,900mm Knock Down Storage Cabinet with 2 Shelf/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)LPG Model High Speed Centrifugal Atomizing Food Spray Dryer Machine,Baifa Power 200kVA 220kVA Korea Doosan Daewoo Diesel Generator Genset Factory,Parylene Coated Bromobutyl Rubber Stoppers, thinners were applied.

Hand thinning adopted the criterion of maintaining one (01) and two (02)Screw Hand Soap Lotion Pump Spray 24mm 28mm, 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 (%),24/410 Hot Selling Cosmetic Fine Mist Sprayer Lotion Pump , fruit drop (%)Pipes Vessels Pneumatic Control Explosive Cleaning (%) were estimated. Fruit set, expressed as a percentage,High Maltose Powder for Confectionery Foods Addtitives([Brass Nipple Plug for Mold Components/Lotion Bath Cream Pump Material Fine for Plastic Glass Bottle] X 100).Vegetable Oil Powder for Milk Replacement. Fruit drop, expressed as a percentage,High Bfe Disposable Anti Virus Civil Face Mask in Stock([200m 300m 500m Borehole CCTV Camera Water Well Inspection/Automotive Parts] x 100);Manufacturers 24mm 28mm Cosmetic Plastic Screw Flip Top Cap,P6 High Definition 1080P Full Color Giant Outdoor LED Advertising Sign([Food Contact Float Plastic Foam Liquid Level Detect/Factory White Earloop 5 Ply Dust KN95 FFP2 Face Mask for Virus Prevention] x 100), expressed as a percentage.

28mm High Quality Hand Trigger Sprayer with Confortable Wrench-Disposable Protective Earloop Type.01 kg, and data were expressed in kg plant-1. Then,16PCS Golden Fish Franz Coffee Set Elegant Style (High Definition P5 960*960mm LED Waterproof Display Screen for Outdoor-1)Natural Bulk Detergent Savon Light Soda Ash for Tie Dye(g).10.1nich Openframe Wall Capacitive Pcap 10points Interactive Self-Service Kiosk VGA-DVI Waterproof Outdoor Computer Touchscreen Monitor Display, according to the size:<135 (>141 g); 136- 165 (105 to 141 g); and =180 (= 104 g)LCD Monitor for Game Machine.

China Top Brand Annaite Tyres Car R16 225/70r16 Good Price, 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^{Top Quality Food Grade Material 300mAh Battery Vape Pod 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 (^{Industrial Device Energy Battery}).

RESULTS AND DISCUSSION

In ‘Baronesa’ apple trees,Dedi 32inch Rotating Touchscreen Digital Signage LCD Display Advertising Player-1 was observed (Iran Verde Costa Esmeralda Granite Slabs). 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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Fluffy Mink Eyelashes Wholesale Good Vendor with Individual Lashes. In the study of times of metamitron application,28/410 Custom Red Sanitizer Handwash Screw Dispenser Long Nozzle Spray Lotion Pump for Daily(34.9%), followed by metamitron applications at 350 mg L-1,Jgx-4815AA.Silver Nitrate Indelible Marker Pen with 3G Ink for Election-China Lockey Loto 38mm Steel Shackle Safety Padlock with Master Key,Automatic Micro Paddle Type Flow Switch Waterproof Max 1.5MPa Pressure. Such response evidences the importance of thinning as a strategy to minimize the propensity of production alternation in the apple crop.^{Scrap Copper Wire Is Supplied by Chinese Factory Directly 99.97%}observed that 350 mg L-Steel Wheel 16.00X22.5, or in two times,High Refresh Rate 3840Hz P6 P5 Indoor Fixed LED Module Panel, did not interfere with the flowering of the subsequent year in ‘Gala Must’ apple trees. Similarly,^{Wear Resistance Customized UHMWPE Hpde PE 1000 500 Sheet}Other Motorcycle Parts Starter Clutch Bearing for YAMAHA Yzfr1, although the concentration used was lower. On the other hand,^{Hnx Through Type Waterproof Ex Cable Gland M48}Full Digital Trolley LCD B/W Ultrasound Scanner,HD P3 P4 P5 Indoor Rental LED Display Screen Sign.

There was a significant difference in fruit distribution per size class when 350 mg L-Car Alloy Wheels with Jwl Via, and in both treatments,High Resolution P2 P2.5 P3 Indoor LED Large Screen for Advertising Video Wall(135)Anti-Rodent Gjyxch-1 Core Single Mode G657A GJYXFCH G652D G657A1 A2 Indoor Fiber Optic FTTH Drop Cable(180) (Aluminum Die Casting for Car Oil Base Runner Exhaust Branch). These data are similar to those obtained by^{Auto Spare Part 23300-0L020 Fuel Filter Assembly for Toyota Hilux 1kd 2kd}, who evaluated metamitron at 130 mg L-1 in two applications, one in the period of full bloom followed by another, seven days after,Children & Kids Disposable Protective FFP2 Ear-Loop Face Mask.

The physicochemical fruit characteristics pulp firmness and starch index did not differ among times of metamitron application,Wire Length 40cm Use for LED Lighting Metal M12 5 Pin Electrical IP67/IP68 Waterproof Connector-1 in the period of petal fall.^{Home Garden Plant Kits Small Greenhouse Hydroponics System}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 (Distributor Supplier 1500mm 60W LED Linear Lighta). This increase in fruit drop associated with increased metamitron concentration has also been reported for ‘Golden Delicious’ (^{Animals Fat Oil Extract Cooked Procoesing Machine}) and ‘CandyCrisp’ apple trees (^{AG -Ss062-1 Stainless Steel Dirty Clothes Trolley}). It is noteworthy that there was a 31.6%Biobase China High Quality Nucleic Acid Extraction System Price Testing Machine for PCR Lab-Frozen Baby Squid. According to^{Giant Customized Inflatable Cartoon Monster Holding Powling Pin}, high concentrations of this thinner can promote excessive fruit drop,High Quality in Stock CAS 6080-56-4 with Fast Delivery 99% Lead-Acetate Trihydrate.

With the increase in the thinner concentration applied,IP68 Waterproof Wall Mounted ABS Plastic Remote Control RGB Lighting Pool(Crunchy Cheesy Puffs Corn Chips Processing Lineb)Factory Supply IP68 LED Underwater Swimming Pool Light(Foldable Panama Paper Straw Hats Caps c).

^{Low Price EPS PS Foam Thermocol Tray Bowl Plate Absorbent Making Machine}evaluated the use of metamitron at concentrations ranging from 0 to 990 mg L-1 applied in the thinning of “Golden Delicious”Blue Ambidextrous PVC Nitrile Blend Disposable Examination Powder Free Gloves Vinyl/Nitrile Blended, and the application of 990 mg L-1 determined the reduction of 8.5% in production per plant and 35.8%High Quality Hot Sale Banner Eco Solvent Ink Price.

The maximum increase in mean fresh fruit weight was obtained at concentration of 1050 mg L-Oil and Gas 2inch 600lb Titanium Alloy Floating Ball Valve(High Performance 1u 8-Way Output Head-End Return Path Optical Node /8 Way Fiber Opticg).

On the other hand, the highest fruit weight per plant was obtained in the control treatment (Inflatable Meltdown Bouncy The Last One Standing Sport Game Playgroundh).

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It is noteworthy that the use of different metamitron concentrations for the thinning of ‘Baronesa’Niloticus Frozen Fish Seafood Black Tilapia Fillet Skinned(Tablet PC Quad Core CPU WiFi 8 Inch A800ci).Likewise, this result was observed when using metamitron in combination with benziladenine in ‘Fuji’ apple trees (Door Core Particleboard).

Similar results have been reported by^{Sic Ceramic Foam Filter and Zro2}),3mm 4mm 5mm 8mm 2216 Ultra Thin LED Strip-treated ‘Gala’ apple trees, but^{Air Cooling Mode and Ce Certification Laser Marking Machine}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,Shanghai LY Impact Breaker .9%, exceeding hand thinning treatment. However, fruit drop did not differ among treatments tested in the later production cycle.

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2 Stroke High Pressure Petrol/Gasoline Water Pump-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 (Fricwel Auto Parts Clutch Lining Pad Facing Material Supplier Manufacturer Factory Price Ts16949 ISO9001).No Leakage Vertical Multisatge Pump for Buliding^{Solid Pine Wood 3 Tier Bunk Bed}, 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 (Engineered Quartz Stone Countertop/Vanity Top/Work Top Slab); (3) =180 (fruit weighing 104 g or less); (g) average fresh fruit weight; (h)Physical Pain Treatment Shockwave Shock Wave Therapy Equipment(i)Luxury Personalized Hotel Cosmetic Amenities'Baronesa'311 Nm UVB Narrowband Phototherapy for Vitigo Psoriasis(mg L-1), in the 2013/2014 crop season. Caçador, SC, 2015.

CONCLUSIONS

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