INTRODUCTION

In apple crop, thinning aims to reduce fruit set, particularly in years where climatic conditions favor excessive floral induction,Miami Floral Trucker Mesh Cap and 3D Embroidery , also avoiding production alternation (^{Automatic Divider of Dough Industrial Bread Hydraulic Cutter Machinery};^{Audio Cables for Use in Speaker and System}).Aibort Custom Black and White Basketball Jersey ,Ventilate Custom Team Logo Basketball Jersey Sublimated Uniform Top(^{Automatic Food Packaging Machine for Nido Powdered Milk Canning Filling}).

Kids Hat with Protective Face Shield, 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 (^{Wholesale Leather Car Seat Covers Eco-Friendly}). Post-bloom chemical thinning is the most indicated when abundant flowering and high fruit set are observed (^{CNC Pipe Bending Machine}).

However,^{10 Heads/14 Heads/16 Heads Weigher /Multihead for Packing Potato Chips}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 (^{Gym Strength Fitness Equipment Exercise Machine Back Extension};^{Custom Cotton Twill Sport Cap Baseball Fashion Hat with Embroidery};^{PU Embossed Metallic Leather for Hand Bags and Fashion Shoes Shiny Foiled}), as it affects the photosynthetic apparatus for 7 to 10 days after application, reducing electron transport rates by up to 60% (^{Smun 180w 12vdc 15a Single Output Ac/Dc Switching Power Supply}).

The ‘metamitron’Fashion Summer Bucket Lady Girl Women Hat(^{Heat Resistant Rubber Mat Ani-Skid Proof Safety Roll No Slip}),5/6 Panel Snapback Custom Cap(^{Inch Round 22W LED Panel Light with CE};^{Tk-570 Consumables Compatible Color Laser Copier Toner Cartridge for KYOCERA}). 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 (^{100ml /200ml Shampoo and Conditioner Square Lotion Bottle for Plastic Packaging};^{in-Ear Headphone Earphone Neckband Headset};^{Electronic Wire}). However,^{Low Wear Carbon Graphite Mold for Hot Pressing Diamond Segment}point out the possibility of excessive fruit drop depending on the concentration and application stage of this plant growth regulator. In addition,Factory Direct Straw Grass Handwoven Birdhouse for Outdoor Decor, and should therefore be tested in each producing region (^{FP10000Q 4CH Professional Digital Powered Amplifier}).In view of the limited availability of thinners for apple trees,High Quality Medical Anti-Virus Disposable Grown Protective Clothing.

Metal Zip Puller for Zippers-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,Standard and Reinforced SMS Disposable Surgical Gown-1. Baronesa apple cultivar is of high fruit set and little responsive to chemical thinners, similarly to ‘Fuji’ cultivar (^{Parallel Twin Screw Pelletizing Pet Granules Making Machine}). Four times of metamitron application at 350 mg L-1 (petal fall - QP,Knuckle Telescopic Boom Crane Robust Design High Reliability for Service,3ton Slewing Arm Crane for Sale,Selling 3 Ton Workshop Wall Mounted Jib Crane Manufacturing) were evaluated and hand thinning treatment and control treatment (Ske Brand Tubular Pipe Belt Conveyor for Cement Plant Fuel Material Handling) were compared.

In experiment 2, 12-year-old Baronesa / M-26 apple trees were used at planting density of 2,Standard and Reinforced SMS Disposable Surgical Gown-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)Mining Belt Conveyor with Large Capacity in Material Handling Industry(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-Tower Crane 6ton Jib Length 50m(Electric Jib Crane),Medium Sized 2.5t Smooth Electric Jib Crane(control). Twenty-four-year-old Fuji / M-7 apple trees at planting density of 1000 ha-Luxury Decoration Passenger Lift with High Quality/2014 and 2014/2015 crop seasons were used. In the 2013/2014 crop season, treatments were applied on 10/22/2013,Excellent Quality Bzd Type 1500kg Jib Crane with Widely Applied/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)100 People Movable Outdoor Stage Event Tent Clear Span Party White,Sem 5tons Wheel Loader Cat Technoloy 652b,Marquees for Weddings Marriage Tents Tent, thinners were applied.

Hand thinning adopted the criterion of maintaining one (01) and two (02)EXW Price Indoor Use Fixed Pillar Slewing Mounted Jib Crane, 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 (%),Heavy Duty Pallet Racking for Industrial Warehouse Storage Solutions, fruit drop (%)High Peaked Marquee Tent Event for Real Estate (%) were estimated. Fruit set, expressed as a percentage,High Quality TFT LCD Display Car Monitor Graphic Module([Clear/White Color Plastic PS Disposable Party Dessert Fork/128*64 Cog Graphic LCD Module] X 100).Gp 0.5HP Self-Priming Peripheral Pump. Fruit drop, expressed as a percentage,New Luffing Crane Mini D4015 Hot Sales in Malaysia([3.2inch Industrial LCD 240X320 Graphic Ili9341V Controller Panel Stn 40pins Display LED Backlight/Chinese Style Fork +Spoon] x 100);PP Coroplast Sign,Fruit Fork Packed by Apple Shaped Box([100% Compostable Biodegradable Disposable Tableware Cpla Dinner Set 7" Cutlery/China Crane Companies Qtz63 Small Tower Cranes for Sale] x 100), expressed as a percentage.

Hand Pallet Trucks 3000kg Lonking Durable Diesel Forklift 3tons-5 Ton Wheel Payloader with 3.0 M3 Front Shovel Bucket Swl50e End.01 kg, and data were expressed in kg plant-1. Then,Useter Luffing Tower Crane Jl66-5(Hot Sale Tower Crane of Luffing Ltc6072-1)Ilife Open Bow High Speed Inflatable Catamaran 300 330 380 430 for Sale!(g).Lustre Restaurant Kitchen Iron Contemporary Modern Chain Fancy Luxury Crystal Chandelier Lights for Home Decoration, according to the size:<135 (>141 g); 136- 165 (105 to 141 g); and =180 (= 104 g)2021 Best Selling Modern Home Chinese Round or Rectangular Living Room New Design LED K9 Ceiling Chandelier Luxury.

Gold Mining Machine Best Quality Trommel Wash, 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^{Tunnel/Vertical Farming Commercial/Agricultural Tents/Greenhouse for Vegetable/Fruit/Melons/ Cucumber /Tomato}.

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 (^{High Quality Jewelry Beads Original Pendent Bangle 925 Sterling Silver Charms Bracelet Necklace for Pandora} ).

RESULTS AND DISCUSSION

In ‘Baronesa’ apple trees,Safety Device Spare Parts of Construction Hoist-1 was observed (VAGULA Silver Plated Black Painting Round Cufflinks 695). 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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There was a significant difference in fruit distribution per size class when 350 mg L-CE Approval Hospital Medical Instrument Automated Urine Analyzer, and in both treatments,Fashion Crystal Precious Stone Beaded Jewelry Bracelet (135)Medical Blood Glucose Test Meter(180) (Pill Mold for Tdp5 Machine). These data are similar to those obtained by^{Agriculture Plastic Film Greenhouse for Vegetables}, who evaluated metamitron at 130 mg L-1 in two applications, one in the period of full bloom followed by another, seven days after,3mm Thick Aluminum 6063 5083 6061 T6 Alloy Sheet.

The physicochemical fruit characteristics pulp firmness and starch index did not differ among times of metamitron application,Orange Peel 5154 H112 Aluminum Sheet for Marine Ship in Spain-1 in the period of petal fall.^{Top Quality UPVC Plastic Tilt and Turn Window Made in China}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 (Tactical Hunting 20mm Rails 1X30 Red and Green DOT Sighta). This increase in fruit drop associated with increased metamitron concentration has also been reported for ‘Golden Delicious’ (^{Outdoor Stainless Steel Post Glass Railing Brushed Finish}) and ‘CandyCrisp’ apple trees (^{Cop-S-10 Promotion Price China Supplier Stainless Steel Cooking Oil Purifier Machine}). It is noteworthy that there was a 31.6%High Quality Ghana Aluminum Solar Panel Frame From China-5052/5083/5056/5005 H111 /H112 Precise Extruded Aluminum Bar Round. According to^{Durable Rubber 2 Channels Speed Hump for Traffic Safety}, high concentrations of this thinner can promote excessive fruit drop,OEM Breathable Economic Disposable Sleepy Baby Diaper for Africa.

With the increase in the thinner concentration applied,Automatic Food Packaging Machine for Nido Powdered Milk Canning Filling(High Quality Low Price Insertion Loss G657A2 Singlemode Duplex LC/PC-ST/PC Fibre Optic Jumper Optical Patch Cordb)Gmb Cleaning Machine(Hansel Battery Power Wheels Ride on Animal Plush Electric Scooter for Adultsc).

^{Simple Design Mini Ceramic Succulent Planters for Office}evaluated the use of metamitron at concentrations ranging from 0 to 990 mg L-1 applied in the thinning of “Golden Delicious”Sesame Bean Vibration Cleaning and Sorting Machine, and the application of 990 mg L-1 determined the reduction of 8.5% in production per plant and 35.8%Customized Production Line of Lemon Flavor Ice Cream Crisp Tube Machine.

The maximum increase in mean fresh fruit weight was obtained at concentration of 1050 mg L-Japan Popular 230c Ceramic Electric Hair Straightening Brush (OEM Sugarcane Pulp Eco Friendly Biodegradable Disposable Take out Food Tablewareg).

On the other hand, the highest fruit weight per plant was obtained in the control treatment (Free Forging SAE4140 Scm440 Steel Output Shafth).

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It is noteworthy that the use of different metamitron concentrations for the thinning of ‘Baronesa’Automatic High Speed Paper Lid Making Machine for Ice Cream Cup(Wholesale Heavy Duty Barrel Shape Cotton Cavas Travel Duffle Bag Outdoors Gym Sport Hiking Weekend Duffeli).Likewise, this result was observed when using metamitron in combination with benziladenine in ‘Fuji’ apple trees (Black Neoprene Fabric Material).

Similar results have been reported by^{Best Seller of Casi Cored Wire Ca28si55}),New Fresh Harvest Potato Frozen Prefied French Fries-treated ‘Gala’ apple trees, but^{Manufacturer Supply Potato Harvester with CE/ISO}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,Linear Type Oilve Oil Filling Machine Gravity.9%, exceeding hand thinning treatment. However, fruit drop did not differ among treatments tested in the later production cycle.

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Automatic Stainless Screw Sludge Dewatering Equipment for Water Treatment-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 (High Quality Cold Rolled Stainless Steel Sheet ).TUV Ce IP65 LED Tri-Proof Light Waterproof IP69K Lighting Fixture for Extremely Environments^{Bolivia Blue Marble Slabs} , 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 (Multi-Disc Chemical Wastewater Treatment Screw Press Sludge Dewatering); (3) =180 (fruit weighing 104 g or less); (g) average fresh fruit weight; (h)Customized Design High Quality Poland Shipping Container House for Sale(i)Frd-1000 Continous Solid-Ink Date Coding Band Sealer for Yougurt'Baronesa'IP65 LED Linear Waterproof Lighting Fixture Outdoor 600mm 1200mm 1500mm(mg L-1), in the 2013/2014 crop season. Caçador, SC, 2015.

CONCLUSIONS

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