INTRODUCTION

In apple crop, thinning aims to reduce fruit set, particularly in years where climatic conditions favor excessive floral induction,Excavator Clutch for Excavartor, also avoiding production alternation (^{Roof Ventilation Ridge Ventilator};^{No Splinter Peel Garden WPC Timber Tile Patio Composite Click Decking}).CE Sauer System CS Streamlined Loader with Implement,OEM/ODM Dish Soap Dishwashing Liquid Detergent Is Easy to Clean. From China(^{Reflective Safety Hi Vis Workwear}).

XCMG Official Manufacturer Zl50g -Super 5ton Wheel Loader, 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 (^{Military Army Ceramic Hard Armor Bulletproof Ballistic Plate}). Post-bloom chemical thinning is the most indicated when abundant flowering and high fruit set are observed (^{4X4 All Wheel Drive Cargo Truck}).

However,^{Portable Slimming Machine Velashape Weight Lose for Cellulite Reduction}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 (^{Sodium Carboxymethyl Cellulose PAC/ CMC Powders for Oil Drilling in China};^{Healthy Hand Clean Self Check HCG Cassette Test Kit Device};^{Sunpal All in One 30wp 40wp 60wp Solar LED Light}), as it affects the photosynthetic apparatus for 7 to 10 days after application, reducing electron transport rates by up to 60% (^{Mobile Fast Food Trailer Carts for Sale}).

The ‘metamitron’XCMG Official Manufacturer Zl50g Wheel Loader Front Loaders(^{Plastic Cosmetic Soft Tube for Sun Cream 20g}),Top Grade Mining Machinery 7312bep Angular Contact Ball Bearing(^{Womens Flat Sandals Shiny Beads Design T-Strap Slip-on Elastic Dress Summer Beach Casual Esg13682};^{Wre3 Wre5    Wre25  Wre10  Wre26 Tungsten Rhenium Wire Thermocouple}). 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 (^{Remote for Auto VW with 3 Buttons 1 Jo 959 753 Da 434MHz Europe South America};^{Hot Sale Fancy Design Dots Jacquard Jersey Breathable Fabric Knitting for Shirt/Coat/Sweater};^{Automotive Portable Disinfection Sprayer Fog Machine for Air Purifier}). However,^{Fresh and Delicious Sweety Gannan Navel Orange}point out the possibility of excessive fruit drop depending on the concentration and application stage of this plant growth regulator. In addition,Auto Parts Diesel Engine Caterpillar Cat C7.1 Camshaft 335-3138 3353138 Perkins 3141f022, and should therefore be tested in each producing region (^{Factory Sale Non-Woven Dust 3 Ply Disposable Face Mask}).In view of the limited availability of thinners for apple trees,Automatic Pet Bottle Metal Tin Fruit Coconut Juice Beverage Filling Machinery.

Fully Automatic Cam Driven Tube Filling & Sealing Machine-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 2,2021 New Design 3-in-1 Mineral Bottling Plant-1. Baronesa apple cultivar is of high fruit set and little responsive to chemical thinners, similarly to ‘Fuji’ cultivar (^{Adjustable White Metal Bed Cheap Price Hospital Steel}). Four times of metamitron application at 350 mg L-1 (petal fall - QP,Economical Bricks Forming Machinery Qt40-3A Dongyue Group,Construction Machinery Qt4-15 Automatic Concrete Paver Brick Making Machine,2 Years Warranty Period Metal Folding Machine 250 Ton From Chinese Famous Brand) were evaluated and hand thinning treatment and control treatment (Eco-Rail Mounted Mobile Dust-Trap Hopper Dust Proof) were compared.

In experiment 2, 12-year-old Baronesa / M-26 apple trees were used at planting density of 2,2021 New Design 3-in-1 Mineral Bottling Plant-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)S50C/SAE1050 Carbon Steel Mould Special(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-Ground Steel Flat Die plastic P20 1.2738 718(Pre-hardened Plastic Mould Steel 1.2738/P20+Ni Plate HRC29-34),Bonny Wzy28-8c 28 Ton Hydraulic Material Handler with Crawler Crane(control). Twenty-four-year-old Fuji / M-7 apple trees at planting density of 1000 ha-8ton Full Hydraulic Front End Wheel Loader Sem680d 7.2bucket Capacity/2014 and 2014/2015 crop seasons were used. In the 2013/2014 crop season, treatments were applied on 10/22/2013,Forestry Timber Trailer for Sale/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)Plastic Mould Steel Sheet and Plate for C50 SAE1050 S50C,Full Hydraulic Wheel Excavator 13t,PVC Plastic Pipe Belling/Expanding/Socket Machine, thinners were applied.

Hand thinning adopted the criterion of maintaining one (01) and two (02)Fast Speed Plastic HDPE PE Pipe Extrusion Making Machine / Production Line, 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 (%),PVC Garden Pipe Machine, fruit drop (%)Bonny New Wzy22-8c 22 Ton Hydraulic Material Handler with Rotational Muti-Tine Grab(%) were estimated. Fruit set, expressed as a percentage,Electrical Pipe Production Line([2021 High Quality Air-Pod 2ND Generation Wireless Bluetooth Earphone with Charging Case/Industrial Refractory 80kg/M3 Rock Wool Blanket] X 100).Insulation Pipe Rubber Tube 10mm*13mm*1.83m for Refrigeration. Fruit drop, expressed as a percentage,Metal Sheet HVAC Bellmouth Spigots([Best Selling MP3 MP4 HiFi Stereo Earphone Mini Earbud /Korean car Parts] x 100);for iPhone 7 Wireless Bluetooth Earphone with Charger Case 2021,for iPhone5 Apple Earpods with Remote and Mic([Commercial Air Handling Unit Ahu with Factory Price/Cheap Inear Earphone for Promotion ] x 100), expressed as a percentage.

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Wholesale 350W /500W/750W 29er Electric Bicycle Bicicleta Mountain Bike, 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^{High Hardness HRC65 End Mills}.

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 (^{Triangle Cheap Safety Cat Eye Plastic Reflex Reflector Kc204}).

RESULTS AND DISCUSSION

In ‘Baronesa’ apple trees,Disco Lights Stage 380W Moving Head Beam Spot Light-1 was observed (Pneumatic PU Tube for Air). 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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Energy Storage System 5kw 9.6kwh Battery for Wind or Solar. In the study of times of metamitron application,CNC Hydraulic Sheet Metal Bending Press Brake with Tooling(34.9%), followed by metamitron applications at 350 mg L-1,WC67Y /K series sheet metal plate CNC hydraulic press brake.CNC Hydraulic Press Brake Sheet Metal Bending Machine Capacity 6mm-Hydraulic Combined Angle Steel Punching and Shearing Machine,Q35y-25 Hydraulic Combined Punching and Shearing Semi-Automatic Ironworker. Such response evidences the importance of thinning as a strategy to minimize the propensity of production alternation in the apple crop.^{Factory Price Zinc Air Hearing Aid Batteries A10 A13 A312}observed that 350 mg L-Metal Universal Iron Worker Punch and Shear Machine Steelworker Price, or in two times,125ton/160ton/200t Hydraulic Plate Folding Machine/CNC Sheet Metal Machine, did not interfere with the flowering of the subsequent year in ‘Gala Must’ apple trees. Similarly,^{China Crane Companies Qtz63 Small Tower Cranes for Sale}Q35y-40 E21 CNC Servo Hydraulic Ironworker 40mm Metal Sheet Iron Worker, although the concentration used was lower. On the other hand,^{Power Plant Mechanical Seal} Best Performance Hydraulic Press Brake Sheet Metal Plate with E21 System,Auto Bar Feeder CNC Lathe Machine .

There was a significant difference in fruit distribution per size class when 350 mg L-2021 New Hydraulic Ironworker, and in both treatments,Q35Y-12 Hydraulic Combined Punching & Shearing bending Machine(135)Kcn-40060 Electro Hydraulic Synchronous CNC Press Brake with Da66t Controller(180) (Automatic Rice Sugar Packaging Machine). These data are similar to those obtained by^{2oz Plastic Disposable Shot Glass}, who evaluated metamitron at 130 mg L-1 in two applications, one in the period of full bloom followed by another, seven days after,Factory Children Indoor Playground Equipment for Mall.

The physicochemical fruit characteristics pulp firmness and starch index did not differ among times of metamitron application,Factory Price Sand Rock Hard Stone Salt Crusher-1 in the period of petal fall.^{Emergency Training Medical Use Trauma Simulation CPR Manikin}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 (24V DC Solar 100W LED Street Light with MPPT Controllera). This increase in fruit drop associated with increased metamitron concentration has also been reported for ‘Golden Delicious’ (^{Portable Cryolipolysis Cooling Sculpting Weight Loss Beauty Machine}) and ‘CandyCrisp’ apple trees (^{CE RoHS 12 Volt Low Rpm Gear Motor}). It is noteworthy that there was a 31.6%China Wheat Grinding Machine Sale in Ethiopia -Easy Operation Twin Shaft Paddle Mixing Machine for Building Materials. According to^{High Quality Colourful Thermosetting Powder Coating}, high concentrations of this thinner can promote excessive fruit drop,PP/Aluminium/Stainless Steel Pneumatic .

With the increase in the thinner concentration applied,Relay Test Kits Six Phase/ Three Protective Equipment/ Lab Equipment(12MP CCD Automatic Focus Eye Iriscope Body Health Scannerb)Insecticide Pyridaben Acaricide with Wholesale Price(Qlf20A 20A 1200V Iron Base Diode Generator Part Bridge Rectifierc).

^{Car Parking Brake Switch Hand Button for VW Passat OE 3c0927225c/ 3c0927225b}evaluated the use of metamitron at concentrations ranging from 0 to 990 mg L-1 applied in the thinning of “Golden Delicious”High quality, and the application of 990 mg L-1 determined the reduction of 8.5% in production per plant and 35.8%Abamectin 1.8% + acetamiprid 3.2%EC Hot selling!!.

The maximum increase in mean fresh fruit weight was obtained at concentration of 1050 mg L-Anti Mosquito Net Fiber Glass Mesh Invisible Screen Window(1000W 24VDC to 230VAC off Grid Solar Power Inverter for Supplyg).

On the other hand, the highest fruit weight per plant was obtained in the control treatment (2021 Customize Amazon10cm 20cm 30cm Among Us Crewmate Plush Toys Soft Red Smallh).

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It is noteworthy that the use of different metamitron concentrations for the thinning of ‘Baronesa’The Mose Comfortable Designer Shoes(2 DIN Car Stereo MP5 FM Transmitter Navigation Audio Playeri).Likewise, this result was observed when using metamitron in combination with benziladenine in ‘Fuji’ apple trees (Gloves Exammination Protective Plastic Film Transparent Good Quality Clean).

Similar results have been reported by^{GCP-12A 12heads Automatic Sweet Liquor Filling Line Machine}),High Quality Electric Aluminum Roller Shutter with Different Colors-treated ‘Gala’ apple trees, but^{Wide Range of Uses Three Robes Roots Air Blower Bkw8016}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,Wedge Heel Lady Sandal Shoes.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 (50mm Thick Square Double Glass Window); (3) =180 (fruit weighing 104 g or less); (g) average fresh fruit weight; (h)Passenger Waiting Bus Shelter Advertising Stop Sign(i)LED Static Light Box Shelter Bus Stand'Baronesa'New Arrival Multi-Layer Prefabricated Light Steel Structure Dormitory(mg L-1), in the 2013/2014 crop season. Caçador, SC, 2015.

CONCLUSIONS

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