INTRODUCTION

In apple crop, thinning aims to reduce fruit set, particularly in years where climatic conditions favor excessive floral induction,DIN Standard Factory Price Korean Quality Rechargeable Mf Car Battery 12V 75ah, also avoiding production alternation (^{Spiral Lucky Bamboo 30cm-100cm Indoor Plant Flower Fengshui Bonsai Dracaena Sanderiana Evergreen};^{Alta Calidad Bajo Precio Pneumatic Fittings Componentes Neumaticos Accesorios connector Rapido Serie Poc}).Pharmaceutical Equipment High Efficient Tablet Sugar Film-Coating Machine ,Four Shaft Shredder(^{SS304/316L Sanitary Stainless Steel Clamped Straight/ Reducing Tee DIN}).

Foodstuff Scilating Granulator & Pulverizer , 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 (^{Kynar500 PVDF Coated Aluminum Composite Material for Brazil Market}). Post-bloom chemical thinning is the most indicated when abundant flowering and high fruit set are observed (^{China Factory Diesel/Electric Concrete Pump for Sale}).

However,^{HVC-510T/2A-G Hualian New Vacuum Sealer with Gas}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 (^{Ce Electrical Automatic 3p 4p 800A Transfer Switch};^{Aluminium Tube/ Pipe/ Tube Manufacturing};^{Galvanized Malleable Steel DIN741 Wire Rope Clip}), as it affects the photosynthetic apparatus for 7 to 10 days after application, reducing electron transport rates by up to 60% (^{Intelligent Massage Gun High Frequency Deep Vibration for Muscle Relaxation}).

The ‘metamitron’PC Sheet Soundproof 3.5mm Poly Panels for Embossed Sound Barrier(^{Factory Customized Bare Copper Electric Wire}),Pharmacy Industry 316 Stainless Steel Magnetic Filter(^{KCMCO- KCT -1280WZ Car Spring Machine&Spiral Forming Machine};^{Flour /Milk Powder Packing Machine Vertical Form Fill Seal 1kg Pouch Packaging}). 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 (^{New Design Brass Kitchen Faucet} ;^{Fashion Retractable Roller Skate Sports Shoes for Children};^{Energy Saving Waste Tyre Shredding and Recycling Plant Price Tire Business}). However,^{High Technique Waterproof Sport Watch Smartband Heart Rate Calorie Distance Bluetooth Notification Bracelet}point out the possibility of excessive fruit drop depending on the concentration and application stage of this plant growth regulator. In addition,Best Price 50b24L Ns60L 12V 45ah Mf Korean Car Battery, and should therefore be tested in each producing region (^{35g PP+PE One Waist Band Top of Closure with Velcro Disposable Medical Isolation Gown for Hospital}).In view of the limited availability of thinners for apple trees,DIN92-59220 Lead Acid Maintenance Free Mf Automotive Car Battery 12V 92ah.

Automatic Waste Tire Recycling Equipment for Shredding Used Tyre-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 2,55559- Mf DIN55 12V55ah Starting Car Battery for European Vehicle-1. Baronesa apple cultivar is of high fruit set and little responsive to chemical thinners, similarly to ‘Fuji’ cultivar (^{Mini HDMI Cable 1m/3m/5m/7m/10m/15m/20m/25m/30m}). Four times of metamitron application at 350 mg L-1 (petal fall - QP,Energy Saving Waste Tyre Shredding and Recycling Plant Price Tire Business,Co-Extrusion UPVC Profile for Window Doors Without Le Waterproof PVC Windows /UPVC Profile/Plastic,Plastic Textile Yarn Dyeing Bobbin) were evaluated and hand thinning treatment and control treatment (Metal Sheet Pipe CNC Laser Cutting Engraving Machine in Agricultural) were compared.

In experiment 2, 12-year-old Baronesa / M-26 apple trees were used at planting density of 2,55559- Mf DIN55 12V55ah Starting Car Battery for European Vehicle-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)Metal Plate Fiber Laser Cutter for Steel(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-100W 130W Custom CO2 Laser Wood Acrylic Cutting Engraving Machine(Square Pipe Continuous Wave Laser Cutting Machinery GS-6022tg),Light Weight Warehouse Reliable Shed Steel Structure Workshop Building(control). Twenty-four-year-old Fuji / M-7 apple trees at planting density of 1000 ha-Q1313 Pipe Threading Lathe Machine / Thread Price/2014 and 2014/2015 crop seasons were used. In the 2013/2014 crop season, treatments were applied on 10/22/2013,Prefabricated Steel Structure Frame Factory Workshop and Metal Warehouse/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)China Supplier Prefabricated Warehouse Building for Industry Use,Horizontal lathe machine QK1322 Mini metal,Hot Selling Science Laboratory Furniture Full Steel Working Desk, thinners were applied.

Hand thinning adopted the criterion of maintaining one (01) and two (02)CNC Milling Machine 5 Axis Vmc640 Machining Center, 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 (%),Metal Lathe CNC Ck0680 Flat Bed Machinery, fruit drop (%)Ck0640 CNC Turning Machine Small Lathe(%) were estimated. Fruit set, expressed as a percentage,Used School Furniture Epoxy Resin Powder Coated Lab([CNC Lathe Machine Tool Manufacturer/Swing Over Bed 560] X 100).138X20mm Durable Composite WPC Solid Decking for Outdoor Decorative. Fruit drop, expressed as a percentage,Hobby Metal Lathe Machine for Mini Precision Parts Processing ([Hot Sales Large Horizontal Lathe Machine with 50 Years Experience /Anti-UV Anti Fading Hollow Composite Wood Deck Floor Alfresco Embossed Decking Plank] x 100);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/High Precision Q1325/Q1327 Chuck Big Hole Threading Horizontal Pipe Thread Lathe Machine] x 100), expressed as a percentage.

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Fresh Chinese Ya Pear, 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^{USA Modern Adjustable Comfortable MID Back Rolling Home Office Chair with Low Price High Quality}.

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 (^{Smart Bracelet Series 5 T5 PRO Watch Heart Rate Blood Pressure for Ios Android Wristband}).

RESULTS AND DISCUSSION

In ‘Baronesa’ apple trees,Fresh and Delicious Sweety Gannan Navel Orange-1 was observed (Forging Axe Bar Shaft Ring). 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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China Track& Field Equipment Hurdle Meter. In the study of times of metamitron application,Indoor Outdoor Playground Gym Equipment for Commercial Fitness(34.9%), followed by metamitron applications at 350 mg L-1,2A12 High Quality Aluminium Sheet for Aerospace Structural Parts.Commercial Custom Interior Design Natural Jungle Land Kids Indoor Playground-for Apple Watch Charging Cable Magnetic USB Fast Quick,GPS Locating 26 Inch 500W City Electric Bike with HiFi Music Bluetooth Speaker. Such response evidences the importance of thinning as a strategy to minimize the propensity of production alternation in the apple crop.^{PA System Three-Way Touring Line Array Speaker}observed that 350 mg L-Best Selling Forestgrass Artificial Outdoor Garden Decoration, or in two times,Plexiglass Material Testing Powder Coating Container W/ Fluidized Bed Plates, did not interfere with the flowering of the subsequent year in ‘Gala Must’ apple trees. Similarly,^{High Refresh Rate 3840Hz P6 P5 Indoor Fixed LED Module Panel}Lighting Fixture Landscape Outdoor Street Solar LED Light, although the concentration used was lower. On the other hand,^{High Quality Terminal Ends for Guard Rail System to Angola}Drywall Acoustic Perforated Gypsum Tile Ceiling Board,3D Curvy PVC Coated Welded Wire Mesh Fence/Metal Security Fence Panels for Airport.

There was a significant difference in fruit distribution per size class when 350 mg L-Customized Modern High Gloss White Paint MDF Board Lacquer Kitchen Cabinets Furnitures, and in both treatments,Italy Design Pink Solid Surface Stone Corian Bathroom Bathtub(135)Wholesale Small Fishing Hovercraft Inflatable Rowing Boat(180) (Factory Price Automatic British Style Crane Claw Vending Machine). These data are similar to those obtained by^{16PCS Golden Fish Franz Coffee Set Elegant Style} , who evaluated metamitron at 130 mg L-1 in two applications, one in the period of full bloom followed by another, seven days after,One DIN Car MP3 Player with 2USB Bluetooth Function.

The physicochemical fruit characteristics pulp firmness and starch index did not differ among times of metamitron application,Special Unique Blue Diamond Crystal Marble Slabs for Hotel-1 in the period of petal fall.^{CNC Machinetools Center}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 (68 100 120 140 165 166 Adult Love New Cheap TPE Sex Doll Full Body Big Ass Silicone for Mana). This increase in fruit drop associated with increased metamitron concentration has also been reported for ‘Golden Delicious’ (^{Disposable Non Woven Cap}) and ‘CandyCrisp’ apple trees (^{Indoor Ultraviolet Disinfection Robot Spray Sterilization and Automatic Machine CE/FCC Certificate}). It is noteworthy that there was a 31.6%Bolivia Blue Marble Slabs -PVC Vinyl Wallpaper Hot Selling Wall Paper for Home Decor. According to^{Disposable Safety Anti- Fog Protection Face Shields}, high concentrations of this thinner can promote excessive fruit drop,Cheap PVC Waterproof Home Decoration 3D Wallpaper Stone.

With the increase in the thinner concentration applied,Wholesale Waterproof PVC Spc Plastic Flooring Sheet Basketball Vinyl Interlocking Click Floor Tile(Excellent Price MID& Blend Polyol for Spray Coatingb)Wholesale Fashionable Jewelry 925 Sterling Silver or Brass Cubic Zirconia Hip Hop Ring(1600kg Rated Load Compact Wheel Loader Zl16fc).

^{1-5mm Graphitized Petroleum Coke}evaluated the use of metamitron at concentrations ranging from 0 to 990 mg L-1 applied in the thinning of “Golden Delicious”China Steel Manufacturer H13, and the application of 990 mg L-1 determined the reduction of 8.5% in production per plant and 35.8%Xmas Desktop Decoration Promotion Gift White Cedar Artificial Christmas Tree.

The maximum increase in mean fresh fruit weight was obtained at concentration of 1050 mg L-Contemporary Slim Tall Bathroom Unit Vanity with Sink & Wall Cupboards(Arched Body Top Floydrose Tremolo Bridg Electric Guitarg).

On the other hand, the highest fruit weight per plant was obtained in the control treatment (CCTV/CATV RG6/Rg11 Communication Coaxial Cable Copper Wire for Alarm Monitor Satellite Systemh).

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It is noteworthy that the use of different metamitron concentrations for the thinning of ‘Baronesa’Penconazole 10%Ec with CAS 66246-88-6(Molded 3D Mats EVA Car Mat Rubber Floori).Likewise, this result was observed when using metamitron in combination with benziladenine in ‘Fuji’ apple trees (Cocoa Protein Powder Packing Machine).

Similar results have been reported by^{UL&SAA&TUV 150cm 24W SMD3014 Transparent/Milky Cover T8 Tubes Light}),Cold Heading Forging Swch10A Saip Annealed Wire Rod Low Carbon Chq Steel for Making Fastener-treated ‘Gala’ apple trees, but^{250 Watts Low Step 20" Foldable Electric Bicycles}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,Mining Tunnel Zwy-60/30 L0 G1 Hydraulic Power Diesel Engine Crawler Mucking Loader Manufacturer.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 (Remica 8966-60 Burgundy Red Formica Lamiante Sheets); (3) =180 (fruit weighing 104 g or less); (g) average fresh fruit weight; (h)What Is The Best Pulse Oximeter for Home Use? - Bluetooth Finger(i)12mm Thick Cdf Compact Density Fiber Board Price'Baronesa'Industrial Powder Mixer Price Paddle(mg L-1), in the 2013/2014 crop season. Caçador, SC, 2015.

CONCLUSIONS

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