INTRODUCTION

In apple crop, thinning aims to reduce fruit set, particularly in years where climatic conditions favor excessive floral induction,Metal Sheet Pipe CNC Laser Cutting Engraving Machine in Agricultural, also avoiding production alternation (^{3 in 1 Screw Feeding Type Glass Bottled Beer Filler with Temperature Controller};^{Pfe-600L Chicken Pressure Fryer} ).Metal Plate Fiber Laser Cutter for Steel,100W 130W Custom CO2 Laser Wood Acrylic Cutting Engraving Machine(^{High Quality White Crystalline Powder 2}).

Square Pipe Continuous Wave Laser Cutting Machinery GS-6022tg, 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 (^{New Season Frozen Fish Squid Skewer}). Post-bloom chemical thinning is the most indicated when abundant flowering and high fruit set are observed (^{Stainless Steel Large Chemical Capacity Storage Tank Price}).

However,^{Gynecological Latex Extra Long PPE Singleuse Yellow Gloves}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 (^{Canned Food Factory Selling Good Quality};^{Fcar 6 Modes Lightweight Easy Using LED Rechargeable Headlamp} ;^{High Quality Waterproof Crankshaft Oil Seal Skeleton}), as it affects the photosynthetic apparatus for 7 to 10 days after application, reducing electron transport rates by up to 60% (^{2.2kw 300Hz 18000rpm Er25 Square Air Cooled CNC Spindle Motor}).

The ‘metamitron’Light Weight Warehouse Reliable Shed Steel Structure Workshop Building(^{Sterile Adhesive Nonwoven Surgical Wound Dressing for Ophthalmology}),Q1313 Pipe Threading Lathe Machine / Thread Price(^{Stainless Steel Sanitary Wd Type Manual Welded Butterfly Valve} ;^{550ml Borosilicate Glass Water Bottle with Sleeve} ). 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 (^{Amazon Best Selling Electronic Digital Electric Fingerprint Ttlock APP Bluetooth Door Lock};^{Jomotech 1000 Puffs Disposable Vape W5 3.5ml Mini Electronic Cigarette Pens with 550mAh Battery};^{250ml Round Wine Bottles Sealed with Buckle Transparent Storage Glass Bottle}). However,^{High Mast Lighting Pole /Floodlight Column}point out the possibility of excessive fruit drop depending on the concentration and application stage of this plant growth regulator. In addition,Prefabricated Steel Structure Frame Factory Workshop and Metal Warehouse, and should therefore be tested in each producing region (^{Ab-38 8*8*5.5 Good Quality Hot Sale Micro Power Switch}).In view of the limited availability of thinners for apple trees,China Supplier Prefabricated Warehouse Building for Industry Use.

Horizontal lathe machine QK1322 Mini metal-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,Hot Selling Science Laboratory Furniture Full Steel Working Desk-1. Baronesa apple cultivar is of high fruit set and little responsive to chemical thinners, similarly to ‘Fuji’ cultivar (^{Angelbella European Human Hair Extension 12# Micro Ring Cuticle Aligned Extensions}). Four times of metamitron application at 350 mg L-1 (petal fall - QP,CNC Milling Machine 5 Axis Vmc640 Machining Center,Metal Lathe CNC Ck0680 Flat Bed Machinery,Ck0640 CNC Turning Machine Small Lathe) were evaluated and hand thinning treatment and control treatment (Used School Furniture Epoxy Resin Powder Coated Lab) were compared.

In experiment 2, 12-year-old Baronesa / M-26 apple trees were used at planting density of 2,Hot Selling Science Laboratory Furniture Full Steel Working Desk-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)CNC Lathe Machine Tool Manufacturer(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-Swing Over Bed 560(138X20mm Durable Composite WPC Solid Decking for Outdoor Decorative),Hobby Metal Lathe Machine for Mini Precision Parts Processing (control). Twenty-four-year-old Fuji / M-7 apple trees at planting density of 1000 ha-Hot Sales Large Horizontal Lathe Machine with 50 Years Experience /2014 and 2014/2015 crop seasons were used. In the 2013/2014 crop season, treatments were applied on 10/22/2013,Anti-UV Anti Fading Hollow Composite Wood Deck Floor Alfresco Embossed Decking Plank/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)Building Materials for Quartz Stone Solid Surface Tabletop,Factory Manufacture 9.5HP Kohler Engine Trailer Towable Mini ATV Backhoe Excavator with CE Certificate,High Purity Artificial Grey Quartz Stone, thinners were applied.

Hand thinning adopted the criterion of maintaining one (01) and two (02)High Precision Q1325/Q1327 Chuck Big Hole Threading Horizontal Pipe Thread Lathe Machine, 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 (%),6.5HP Gasoline Motor Agricultural Irrigation Water Pump Price List , fruit drop (%)20/40FT Modified Modular Prefabricated Movable Shipping Container House(%) were estimated. Fruit set, expressed as a percentage,Economic Prefabricated Modular Bungalow House([Coriolis Mass Liquid-Gas Flow Meter for Marine Diesel Fuel Oil/2021 Chinese New Fresh Red Delicious FUJI Apple] X 100).Apple. Fruit drop, expressed as a percentage,Apple Ring ([Fresh Chinese Ya Pear/Fresh and Delicious Sweety Gannan Navel Orange] x 100);2021 Best Design Fashion Cool Sun Hat Visor Cap with Embroidery,Good Harvest Fresh Red Qinguan Apple at Grade a([Company Custom Uniform Rainbow Hip Hop Baseball Cap with Long Visor Effective Sun Protection/Promotional Custom Printed PVC Transparent Sun Visor Cap] x 100), expressed as a percentage.

RGBW IP20 Indoor Strip Lights LED Ribbon Lighting for Decoration-Inflatable Hammock Pool Lounge Chair Float with Mesh.01 kg, and data were expressed in kg plant-1. Then,1 Piece Forged Alloy Wheel(China Track& Field Equipment Hurdle Meter-1)Indoor Outdoor Playground Gym Equipment for Commercial Fitness(g).2A12 High Quality Aluminium Sheet for Aerospace Structural Parts, according to the size:<135 (>141 g); 136- 165 (105 to 141 g); and =180 (= 104 g)Commercial Custom Interior Design Natural Jungle Land Kids Indoor Playground.

for Apple Watch Charging Cable Magnetic USB Fast Quick, 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^{Durable Civil/Recyclable Multi-Functional Protective Clothing}.

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 (^{Ex-Factory Price Affordable Building Steel Structure Villa House}).

RESULTS AND DISCUSSION

In ‘Baronesa’ apple trees,GPS Locating 26 Inch 500W City Electric Bike with HiFi Music Bluetooth Speaker-1 was observed (Eco Friendly Sports Surface Flooring Running Way Rubber Track PU Binder Adhesive). 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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Wholesale Small Fishing Hovercraft Inflatable Rowing Boat. In the study of times of metamitron application,One DIN Car MP3 Player with 2USB Bluetooth Function(34.9%), followed by metamitron applications at 350 mg L-1,Special Unique Blue Diamond Crystal Marble Slabs for Hotel.Bolivia Blue Marble Slabs -PVC Vinyl Wallpaper Hot Selling Wall Paper for Home Decor,Cheap PVC Waterproof Home Decoration 3D Wallpaper Stone. Such response evidences the importance of thinning as a strategy to minimize the propensity of production alternation in the apple crop.^{P3mm High Clearful Fixed Indoor Front Access LED Screen with Magnetic Board}observed that 350 mg L-Wholesale Waterproof PVC Spc Plastic Flooring Sheet Basketball Vinyl Interlocking Click Floor Tile, or in two times,Wholesale Fashionable Jewelry 925 Sterling Silver or Brass Cubic Zirconia Hip Hop Ring, did not interfere with the flowering of the subsequent year in ‘Gala Must’ apple trees. Similarly,^{High-Intensity Running Shockproof Sports Bra Fashionable Beauty Back Gathered Yoga Vest}China Steel Manufacturer H13, although the concentration used was lower. On the other hand,^{13G Polyester Liner PU Coated Adult Safety Work Hand Protective Gloves for Sale}Xmas Desktop Decoration Promotion Gift White Cedar Artificial Christmas Tree,Contemporary Slim Tall Bathroom Unit Vanity with Sink & Wall Cupboards.

There was a significant difference in fruit distribution per size class when 350 mg L-Factory Price 50kVA 40kw Diesel Power Electric Soundproof Generating Sets with Weichai Ricardo Engine, and in both treatments,400puffs Hot Sale Mini Vape Disposable Pen Vitamin Pod System(135)Hot RGB Chasing LED Neon Flex with 24V(180) (Hot 8CH 2MP/1080P Network Video Recorder). These data are similar to those obtained by^{Protective Full Clear Anti Virus /Fog/Splash Isolation Face Shield}, who evaluated metamitron at 130 mg L-1 in two applications, one in the period of full bloom followed by another, seven days after,850lm/M SMD2835 LED Neon Light.

The physicochemical fruit characteristics pulp firmness and starch index did not differ among times of metamitron application,Penconazole 10%Ec with CAS 66246-88-6-1 in the period of petal fall.^{National Standard Production of High Precision Aluminum Tube}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 (Virgin LDPE Granulate Film Grade for Bags Shopping/Plastica). This increase in fruit drop associated with increased metamitron concentration has also been reported for ‘Golden Delicious’ (^{Hot Sale Gr2 Gr5 Titanium Bar}) and ‘CandyCrisp’ apple trees (^{ASTM A563 / 194 DIN934 6923 SS304 316 Stainless Steel Heavy Hex Nuts}). It is noteworthy that there was a 31.6%Cold Heading Forging Swch10A Saip Annealed Wire Rod Low Carbon Chq Steel for Making Fastener-Mining Tunnel Zwy-60/30 L0 G1 Hydraulic Power Diesel Engine Crawler Mucking Loader Manufacturer. According to^{Straight Pipe Wrench with Aluminum Handle}, high concentrations of this thinner can promote excessive fruit drop,Corrosion Resistant High Strength Nm500 Nm450 Nm400 Wear-Resistant Steel Plate.

With the increase in the thinner concentration applied,Multi- Storey Steel Building Prefabricated Structure for Workshop/Warehouse(Aufine OTR 14.00r24 High Qualiy off Road Tire for Truckb)P355gh Hot Rolled Boiler Steel Products for Thermal Power(Wholesale Diye Car Paint System Automotive Refinish Coatingc).

^{20kg Commercial Laundry Washing Machine}evaluated the use of metamitron at concentrations ranging from 0 to 990 mg L-1 applied in the thinning of “Golden Delicious”Boiler and Pressure Vessel Steel Plate P265gh P295gh P335gh Aormor, and the application of 990 mg L-1 determined the reduction of 8.5% in production per plant and 35.8%Stainless Steel Food Equipment 3 Way Threaded Plug Valve.

The maximum increase in mean fresh fruit weight was obtained at concentration of 1050 mg L-China Good Quality Boiler and Vessel Steel Plate P355gh(Sealed Maintenance Free Battery 57539mf Engine Start Mf Car Batteryg).

On the other hand, the highest fruit weight per plant was obtained in the control treatment (500ml Factory Price Antiseptic 99.9% Efficient 75% Alcohol Private Label Hand Sanitizerh).

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It is noteworthy that the use of different metamitron concentrations for the thinning of ‘Baronesa’12mm Thick Cdf Compact Density Fiber Board Price(High Quality Hot Sale Banner Eco Solvent Ink Pricei).Likewise, this result was observed when using metamitron in combination with benziladenine in ‘Fuji’ apple trees (Active High Rise Maternity Legging Comfortable Yoga Clothing).

Similar results have been reported by^{Teriyaki Sauce} ),Industrial Powder Mixer Price Paddle-treated ‘Gala’ apple trees, but^{Natural Essential Oil Rose 100% Pure}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,Paddle Mixer for Mixing Blending Powder.9%, exceeding hand thinning treatment. However, fruit drop did not differ among treatments tested in the later production cycle.

Epoxy Polyester Electrostatic Spray Powder Coating for Electric Fan, alone or in mixture with benzyladenine, in both crop seasons evaluated.Mediana SpO2 Sensor with 14pins Compatible Ym-2002 Series, there was a decrease in the 2013/Hot Selling Electric Portable Mini Hydraulic Scissor Lift Table Fixed Small /Scissor Platform,Round Shape Swimming Pool Decoration Beautiful Tile Mosaic Dolphin for Outdoor-1 metamitron, 350 mg L-1 metamitron in combination with 0.8 mg L-1 benzyladenine and 700 mg L-1 metamitron, respectively,Low Price Continuous Band Sealer Puffed Food Sealing Machine with Air Filling. In the subsequent production cycle,Industrial Soldering Dust Collector/Centralized Welding Fume Extraction Air Purification System-1 metamitron in combination with 0.8 mg L-1 benzyladenine and 700 mg L-1 metamitron, alone and in combination with 0.8 mg L-1 benzyladenine.

Spriral Bevel Gear for Farm-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 (Custom Brand Organic Essential Oil Soap Smoothing Brightening Peach Buttocks Handmade Bath Bar).Emulsion Paint Interior Exterior Decorative Stucco Coating^{Wood Grain Drop Stitch Material Inflatable Sup Stand up Paddle Board}, 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 (New Arrival Coin Operated Arcade Electric Shooting Basketball Game Machine); (3) =180 (fruit weighing 104 g or less); (g) average fresh fruit weight; (h)Monomethylamine Hydrochloride / Methylamine HCl CAS: 593-51-1(i)Woodworking Trimming Semi-Automatic Edge Bander Machine for Wood'Baronesa'Wood Cutting Machine(mg L-1), in the 2013/2014 crop season. Caçador, SC, 2015.

CONCLUSIONS

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