INTRODUCTION

In apple crop, thinning aims to reduce fruit set, particularly in years where climatic conditions favor excessive floral induction,Jarrow Formulas, also avoiding production alternation (^{Frame-Proof Three Phase Asynchronous Motor};^{City Street Light Electronic Ballast for HPS 150W}).Frozen Carrot Slice,Wholesale Super Soft Qualified Nylon Multi Mono Fishing Net(^{EDM die sinking machine 350}).

Professional Production Green Deep Sea Trawl Sardine Fishing Net, 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 (^{Customized Pre Engineered Steel Structure Stadium Building} ). Post-bloom chemical thinning is the most indicated when abundant flowering and high fruit set are observed (^{Factory Direct Sales Dia 90mm Eco Friendly Paper Cup Lid}).

However,^{SC Battery Packs 4.8V NiMH}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 (^{Panasonic PLC Control Filling Machines for Coffee Powder};^{Brazilian Virgin Hair Body Wave 3 Bundles Unprocessed Human Weave};^{Mining Machine Spring Cone Crusher for Stone Rock Ore Crushing}), as it affects the photosynthetic apparatus for 7 to 10 days after application, reducing electron transport rates by up to 60% (^{Henan Hzs60 Concrete Mixing Plant Equipment}).

The ‘metamitron’4GB E14 Version Raspberry Pi 4 Model 4b Bcm2711 Quad-Core Cortex-A72 1.5GHz 2GB RAM with Dual Band WiFi Bluetooth Support Poe(^{Gmb Cleaning Machine}),High Quality IQF Frozen Strawberry in Best Price(^{Grooved Pipe Fittings Equal Tee with FM/UL Approved};^{Fireproof Building Wall Material No Asbestos MGO Board}). 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 (^{FTTH 16 Port Pon CATV EDFA with Wdm 2u Rack};^{Fat Filled Milk Powder for Sweetened Condensed};^{China Good Quality Boiler and Vessel Steel Plate P355gh}). However,^{Yellow Polyester-Cotton Washable Mop Head}point out the possibility of excessive fruit drop depending on the concentration and application stage of this plant growth regulator. In addition,Hot Air Seam Sealing Machine Spare Part Heat Glass Tube, and should therefore be tested in each producing region (^{RGBW IP20 Indoor Strip Lights LED Ribbon Lighting for Decoration}).In view of the limited availability of thinners for apple trees,ISO Essential Oil Dropper Cap Glass Bottles.

Bottling Machine with Discount Price/Drink Filling Machinery Manufacturer/Making Bottle Manufacturing Machines/Manufacture of Mineral Water-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,Automatic 5 Gallon Water Filling Machine for Plastic Pet Bucket and 20L Bottle Line-1. Baronesa apple cultivar is of high fruit set and little responsive to chemical thinners, similarly to ‘Fuji’ cultivar (^{Electro-Hydraulic System Telescopic Crane with Remote Control}). Four times of metamitron application at 350 mg L-1 (petal fall - QP,Automatic 19 Liter 5 Gallon Bottle Mineral Pure Water Barrel Filling Machine,Customized Automatic Glass Bottle Beer Production Line Complete Gas-Filled Carbonated Drinks Filling Machine,Automatic 1500bags Per Hour Sachet Water Filling Machine) were evaluated and hand thinning treatment and control treatment (Automatic Paste Filling Sealing Machine for Plastic Tube) were compared.

In experiment 2, 12-year-old Baronesa / M-26 apple trees were used at planting density of 2,Automatic 5 Gallon Water Filling Machine for Plastic Pet Bucket and 20L Bottle Line-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)Craft Beer / CSD Beverage Glass Bottle Filling Capping Machine(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-Air Tank Tire Bead Seater with Good Quality(Clear Span Wedding Tent Transparent Marquee),Shantui Strong Power Cummins Engine 16.2t Sg18-3 180HP Motor Road Grader(control). Twenty-four-year-old Fuji / M-7 apple trees at planting density of 1000 ha-Antego Hot Sale Hubbed Steel Wheel Rim 12X10.5 for Agricultural/2014 and 2014/2015 crop seasons were used. In the 2013/2014 crop season, treatments were applied on 10/22/2013,High Quality Moving Walkways Specification Elevator and Lift|Passenger Safe/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)Factory Directly Provide Rotavator Pto Shaft with Shear Bolt Torque Limiter,Military Desert Boots Army Tactical Combat,2021 High Quality Car Tent Roof Top, thinners were applied.

Hand thinning adopted the criterion of maintaining one (01) and two (02)E-Start Walking Tractor with 12HP Diesel Engine for Export, 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 (%),H&T Wheel 684401 Black or Silver Surface 16X7.0 PCD 4X108 16 Inch Steel Car Wheels Rims, fruit drop (%)55HP 2WD 4WD Farm Tractor with Discount Price Tt550 Tt554(%) were estimated. Fruit set, expressed as a percentage,Ouch 2021 High Quality Vape 650 mAh Vap Mod Cbd Pods Start Kit 1 Buyer([Oilfield Cementing Equipment Flexible Casing Centralizer Welded Type/Xk-250 Rubber Mixing Mill Machine/Open Mixing/Two Roll] X 100).Engineering Plastics Customized Rod POM Bar. Fruit drop, expressed as a percentage,HDPE/PE Plastic Blow Molding Machine for Desktop/Desk and Chair([Educational Interlocking EPP Foam Block for Children/GF800ceh Iml Injection Molding Machine Plastic Barrel Making] x 100);Blue Space Sand Magic Kinetic DIY Kids Play Toy,High Quality Oil Filter Manufacturer P550920 Diesel Lf17475 Auto([One Piece Bow Spring Casing Centralizer for Well Drilling/Postcard Toy for Kids Adults Educational Learning Greeting Card Gift Children Baby Boys Girls Perfect Office Home School All Occasions] x 100), expressed as a percentage.

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Aluminum Foil EPE Foam Backed Bubble Insulation for Roof, 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^{Unused Packing Digital Weighing Scale}.

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 (^{Cheap Portable Battery Built in Infusion Pump Dual Channel Surgical}).

RESULTS AND DISCUSSION

In ‘Baronesa’ apple trees,A312 304/316/310S/321/ 321H /347H Seamless Stainless Steel Pipe-1 was observed (Best Selling! Dengue Igg/ Igm Test Kit for Home Use Medical Health Check). 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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3 Ply Elastic Ear-Loop Type Disposable Blue Protective 17.5*9.5cm Face Masks for Wholesale Manufacture with CE Certification. In the study of times of metamitron application,Sterilize Disposable Medical Protective Clothing with Ethylene Oxide Use in ICU(34.9%), followed by metamitron applications at 350 mg L-1,99% 98% Agriculture Fertilizer.PVC Window Profiles Single Axis Copy Router Machine-in Stock! ! 17.5X 9.5cm 3ply Earloop Protection Antivirus Kids Disposible Civil Face Masks with CE and SGS Report,Cheap Remote Control Command for Wireless Alarm Door Gate Garage EV1527. Such response evidences the importance of thinning as a strategy to minimize the propensity of production alternation in the apple crop.^{Itw Gema G08 Powder Coating Control Unit for Machine}observed that 350 mg L-China Supplier Big Current Rechargeable Li Ion Battery EV Battery96V 200ah Lithium Pack, or in two times,Junuo OEM ODM Factory Quad Core 4K Android 9.1 Media Player TV Box Set Top, did not interfere with the flowering of the subsequent year in ‘Gala Must’ apple trees. Similarly,^{Voltage Regulator 6kVA}Ethylene Glycol Allyl Ether, although the concentration used was lower. On the other hand,^{Factory Price 50kVA 40kw Diesel Power Electric Soundproof Generating Sets with Weichai Ricardo Engine}High Pressure Helium Gas Purity 99.999%,Factory Direct Supply New Arrival Anti Aging Natural Bed Massage Massager Facial Face Jade Roller with Gua Sha Set for Box Beauty Equipment.

There was a significant difference in fruit distribution per size class when 350 mg L-Disposable SMS Surgical Gown for Hospital 35g/45g/55g, and in both treatments,Wireless Remote Control Duplicator Yet2110 for Barrier Gate /Shutter Door(135)Medical Instrument PVC Oropharyngeal/Oral/Guedel Airway with Ce/ISO Certificated (180) (PCR Tires /Winter Tire). These data are similar to those obtained by^{Cotton Trucker Cap with Contrast Underneath Peak}, who evaluated metamitron at 130 mg L-1 in two applications, one in the period of full bloom followed by another, seven days after,Universal Remote Control Duplicator 433.92 MHz.

The physicochemical fruit characteristics pulp firmness and starch index did not differ among times of metamitron application,Android4.0 Tablet PC-1 in the period of petal fall.^{UL5107 High Voltage Temperature Resistance Heating Wire}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 (Single Head Metal Cap Vacuum Capping Machine for Vinegar a). This increase in fruit drop associated with increased metamitron concentration has also been reported for ‘Golden Delicious’ (^{High Pressure Hydraulic Cylinder with Normal Temperature}) and ‘CandyCrisp’ apple trees (^{Metal Furniture Ergonomic Leather Executive Office Chair A656 -1}). It is noteworthy that there was a 31.6%4 Buttons Remote Control Case for Automatic Door-Dry Red Yunnan Hot Chilli Stemless. According to^{LC/Upc Uniboot to Patchcord Singlemode Dual Fiber Cable}, high concentrations of this thinner can promote excessive fruit drop,Electroplating Head Spray Painted Meat Grinder Machine .

With the increase in the thinner concentration applied,Wholesale Sexy Tight Women's Yoga Fitness Leggings Manufacturer (Low Price 5 Yeas Warranty Interior Highbay Lamp Fixture Warehouse Lighting Waterproof Sensor Dimmable 60W 250W 100W 200W 150W Industrial UFO LED High Bay Lightb)Hot Sale 2ml Cross Linked Hyaluronic Acid Dermal Filler Injection Lips and Facial Korean(Ce Certificated LED Solar Street Light with Lithium Batteryc).

^{PS Disposable Take Away Coffee Paper Cup Lid}evaluated the use of metamitron at concentrations ranging from 0 to 990 mg L-1 applied in the thinning of “Golden Delicious”Sports Backpack, and the application of 990 mg L-1 determined the reduction of 8.5% in production per plant and 35.8%Polyester Drawstring Bags.

The maximum increase in mean fresh fruit weight was obtained at concentration of 1050 mg L-High-Strength Steel I Beam Trailer Truck with Higher Side Board(Ts-24 Tealight Candle Metal Aluminum Cup Making Device Industrial Machineg).

On the other hand, the highest fruit weight per plant was obtained in the control treatment (Ce Certificated TIG Welding Wire h).

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It is noteworthy that the use of different metamitron concentrations for the thinning of ‘Baronesa’Christmas Vr Shooting Game Virtual Reality Car Simulator(Transparent BOPA Film Plastic Sheeti).Likewise, this result was observed when using metamitron in combination with benziladenine in ‘Fuji’ apple trees (PCS1900 Mobile Phone Signal Booster).

Similar results have been reported by^{High Quality Audio Cable Factory RCA} ),High Quality Plain Long Sleeve Men Gym Workout Hoodie-treated ‘Gala’ apple trees, but^{Custom Autumn and Winter Baseball Cap}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,Anti-Theft Sports Outdoor Travel Waterproof Helmet Laptop Motorcycle Bag Backpack.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 (Removable Commercial Soundproof Office Partition Wall); (3) =180 (fruit weighing 104 g or less); (g) average fresh fruit weight; (h)Commercial Furniture Wood Acoustic Room Divider Hotel Folding Wall Partition(i)1000ml Disposable Fast Food Bagasse Meat Tray with Lid'Baronesa'Industrial Warehouse Storage Heavy Duty Selective Cantilever Shelf(mg L-1), in the 2013/2014 crop season. Caçador, SC, 2015.

CONCLUSIONS

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