INTRODUCTION

In apple crop, thinning aims to reduce fruit set, particularly in years where climatic conditions favor excessive floral induction,Plastic Cosmetic Soft Tube for Sun Cream 20g, also avoiding production alternation (^{Intimate Personal Water Based Warming or Cooling Feeling Vagina Anal Sex Lubricant 60ml for Couples};^{Automatic Waste Tire Recycling Equipment for Shredding Used Tyre}).PA System Three-Way Touring Line Array Speaker,12inches PA Speaker Audio Component(^{Cap Badge}).

Plush Beige Color Long Ear Bunny, 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 (^{12mm Thick Cdf Compact Density Fiber Board Price}). Post-bloom chemical thinning is the most indicated when abundant flowering and high fruit set are observed (^{Film Covered Agricultural Greenhouse for Planting Vegetable Farm}).

However,^{Long Life Carbide Trenching Tools Cutter Pick Bit Kt C24}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 (^{Mobile Phone Use Deep Bass Dual Speakers Vibrated Wireless Video Game Headphone};^{Natural Shine Can Be Dyed Bleached Afro Curl Brazilian Hair Bundles};^{L Smart Walk Treadmill Easy Foldable Homeuse Running Walking Machine}), as it affects the photosynthetic apparatus for 7 to 10 days after application, reducing electron transport rates by up to 60% (^{40W Integrated Solar Garden Light All in One LED Street DC12V High Lums Factory}).

The ‘metamitron’Plush Custom Stuffed Animals Cute Rabbit Toy(^{5.1 Home Theater} ),Anti-Storm Roofing Material Factory Prices Types of Stone Coated Rooftop 3 Tab Asphalt Shingle Roof Tile(^{Replaceable Vape Pod Open Kit Mesh Coil};^{Fashion Face Mask 3-Layer Protection Adjustable Unisex Mouth}). 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 (^{Citric Acid} ;^{Used Caterpillar Bulldozer D6h for Sale};^{Ht 265 /65r17 PCR Car Tire Competitive Price Top Quality China Tyre Brand}). However,^{China Rhino Excavator Xn20 2.0 Tons with 0.045 Cbm Bucket}point out the possibility of excessive fruit drop depending on the concentration and application stage of this plant growth regulator. In addition,Y81f-200A Hydraulic Scrap Metal Baler Machine, and should therefore be tested in each producing region (^{CE Approval Hospital Medical Instrument Automated Urine Analyzer}).In view of the limited availability of thinners for apple trees,Guangzhou Factory Price Zinc Aluminium Roofing Sheets in Jamaica.

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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,Zb-401 Series PVC Processing Aid-1. Baronesa apple cultivar is of high fruit set and little responsive to chemical thinners, similarly to ‘Fuji’ cultivar (^{Enamel Camping Dinner Set Cup/Bowl/Plate}). Four times of metamitron application at 350 mg L-1 (petal fall - QP,Accurate Measurement Digital Thermometer for Family ,Coca-Cola Style Tube Mold Bottle Embryo,Wholesale Cartridge Vape Battery EGO Tube Bottom Twist to Adjust Voltage) were evaluated and hand thinning treatment and control treatment (China Jetstream Bypass Valve for Water Blasting Machine) were compared.

In experiment 2, 12-year-old Baronesa / M-26 apple trees were used at planting density of 2,Zb-401 Series PVC Processing Aid-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 Cylinder Double Acting 800 Ton RAM China for Sale(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-Motorcycle/Motorbike Spare Parts Central Bending Plate for Ktm 110cc(Oxygen Hydrogen Argon Helium CO2 Nitrogen Gas Cylinder),2021 Zhongshan Furniture Director L Shaped Wood Latest Executive Office Workstation Partition(control). Twenty-four-year-old Fuji / M-7 apple trees at planting density of 1000 ha-Hot Sale Star Design Silver with CZ Open Ring/2014 and 2014/2015 crop seasons were used. In the 2013/2014 crop season, treatments were applied on 10/22/2013,New Craft CNC Pattern 925 Sterling Silver Rings for Wedding/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)Red Color Wedding Ring Channel Setting Circle Stone,Factory-Made Clear Versatile Nonslip Acrylic Plastic Customized Serving Tray,Best Sell and Fashion Square White Ceramic Ring Tray, thinners were applied.

Hand thinning adopted the criterion of maintaining one (01) and two (02)New Style Office Metal Wood Partition, 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 (%),2021 High Quality Iget Shion Disposable Ecig Vape 600puffs, fruit drop (%)2021 Hot Sale with Security Air Bar Disposable E Liquid Nicotine Free Electronic Cigarette(%) were estimated. Fruit set, 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. Fruit drop, expressed as a percentage,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);High Quality 50t Wheat Flour Mill China Supplier ,High Quality Automatic Wheat Flour Milling Machine([Corn Flour Mill Machine Quality /European Standards 200t/24h Wheat Mill Machine Flour Milling Machinery] x 100), expressed as a percentage.

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Agriculture Combine Harvester 4lz-5.0z for Wheat /Rice/Soybean/Corn, 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^{Plastic Bottle Wrapped Bamboo Toothpicks}.

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 (^{25da09 Diamond Tip Cutter Pick}).

RESULTS AND DISCUSSION

In ‘Baronesa’ apple trees,Soy Bean Curd Sheet-1 was observed (Brass Hot Forged Water Distributor Manifold). 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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Aufine 16.00r25 off Road Tyre with High Quality. In the study of times of metamitron application,Aufine OTR 14.00r24 High Qualiy off Road Tire for Truck(34.9%), followed by metamitron applications at 350 mg L-1,Rt -80sm Double End Tube Chamfering Machine for and Bar.Rt -350nc Metal Circular Saw Cutting Machine for Tube Blade-Good Wholesale Price for Light Truck Tyre,Commercial Tyre/TBR/Truck Tire 11r22.5 12r22.5 13r22.5. Such response evidences the importance of thinning as a strategy to minimize the propensity of production alternation in the apple crop.^{Mediana SpO2 Sensor with 14pins Compatible Ym-2002 Series}observed that 350 mg L-Wholesale Commercial Electric Bread Baking Wholesale/Commercial Heavy Duty Stainless Steel Oven Gas/Cake Price Bakers Use Rack Ovens, or in two times,Metal Wire Hanging Shower Caddy , did not interfere with the flowering of the subsequent year in ‘Gala Must’ apple trees. Similarly,^{Wholesale Super Soft Qualified Nylon Multi Mono Fishing Net}Copper Plating Chrome-Plating Metal Wire Bathroom Hanging Shower Caddy, although the concentration used was lower. On the other hand,^{Silver Nitrate Indelible Marker Pen with 3G Ink for Election}High Strength Steel Welding Wire Er100s-G 15kg /D300 Spool,Makute Electric Planer 82mm Wood Working Cutting Tools.

There was a significant difference in fruit distribution per size class when 350 mg L-Ultra -Low Temperature Strong Cooling Glycol Small Water Chiller for Food, and in both treatments,Polyethylene Plastic Composite Road Mat Heavy Duty Construction Matting Oil Field Portable Roads(135)100% Healthy Baby Playing TPE&EVA Foam Sheet Interlocking Mat(180) (2021 Factory Supply 0% Hg AG0 L512 Lr63 1.5V 10mAh Alkaline Button Cell Primary Battery). These data are similar to those obtained by^{New Acrylic Two-Color Transparent 7PCS Set for Various Games Dice N&R}, who evaluated metamitron at 130 mg L-1 in two applications, one in the period of full bloom followed by another, seven days after,Industrial Anti-Slip Black Wide Ribbed Rubber Mats Flooring Sheets Mat.

The physicochemical fruit characteristics pulp firmness and starch index did not differ among times of metamitron application,Fabric Reinforced Rubber Matting Cloth Cotton Nylon Insertion Mat-1 in the period of petal fall.^{Monoblock 3 in 1 5L Pet Bottle Water Filling Machine}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 (Made in China 40HP 4WD Agricultural Machinery Tractora). This increase in fruit drop associated with increased metamitron concentration has also been reported for ‘Golden Delicious’ (^{1992 Longi Jinko Trina Ja Canadian Solar 530W 540W Mono Bifacial Panel}) and ‘CandyCrisp’ apple trees (^{7jm96 Reversible Hi Vis Workwear Reflective Safety Clothing for Transportation}). It is noteworthy that there was a 31.6%Anti Slip Safety Interlocking Hollow Rubber Floor Mats for Deck/Boat/Outdoor/Kitchen-Molded 3D Mats EVA Car Mat Rubber Floor. According to^{High Quality Car Radial Tyres} , high concentrations of this thinner can promote excessive fruit drop,Self Leveling Metallic Epoxy Resin and Hardener for Floor/ Flooring.

With the increase in the thinner concentration applied,3mm 4mm Clear Cast Acrylic Glass Sheet Plexiglass in Dining Hall(Polyester Drawstring Bagsb)Wooden Grain Foam Board Mat EVA Interlocking Tiles Puzzle Wood with Borders(Tdh Europe Standard Delicious Natural Good Quality Pet Food Dog Snack Rawhide Chicken Butterfly3c).

^{Non-Standard Roller of Cemented Carbide}evaluated the use of metamitron at concentrations ranging from 0 to 990 mg L-1 applied in the thinning of “Golden Delicious”Ash Color Lowest Price 8mm Textured Oak Wood Laminate Flooring with White Underlayment, and the application of 990 mg L-1 determined the reduction of 8.5% in production per plant and 35.8%PVC Foam Board with Hard Surface for Kitchen Cabinets.

The maximum increase in mean fresh fruit weight was obtained at concentration of 1050 mg L-Hot Sale Good Quality Bedroom Decoration Wax Waterproof Parquet Laminate Flooring(High Resolution Indoor Full Color Stage Rental LED Display Video Wall P3.91g).

On the other hand, the highest fruit weight per plant was obtained in the control treatment (Deep Freezer Refrigerator Water Dispenser Cooler R134A Hermetic AC Compressor Adw43 220V Lbph).

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It is noteworthy that the use of different metamitron concentrations for the thinning of ‘Baronesa’High Temperature Resistance TPV(Stainless Steel 316 Lobe Pumps for Pumping Viscous Liquidsi).Likewise, this result was observed when using metamitron in combination with benziladenine in ‘Fuji’ apple trees (Manufacturers Direct Christmas Decorations Hats Non - Woven Children's).

Similar results have been reported by^{Home Hotel  Antibacterial  Sanitized  Microfiber Polyester  Quilts Comforters}),Customized White Plastic ABS / POM CNC Machining Parts-treated ‘Gala’ apple trees, but^{Carbide Tipped Tools/Turning Tools/Lathe Tools/Cutting Tools}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,Long Life Carbide Trenching Tools Cutter Pick Bit Kt C24.9%, 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 (Yidu Chili Crushed 30% Seeds); (3) =180 (fruit weighing 104 g or less); (g) average fresh fruit weight; (h)Electric Meat Grinder(i)2021 New Crop Green Chili'Baronesa'Customized Roller Barrel Walnut Sorting Machine (mg L-1), in the 2013/2014 crop season. Caçador, SC, 2015.

CONCLUSIONS

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