INTRODUCTION

In apple crop, thinning aims to reduce fruit set, particularly in years where climatic conditions favor excessive floral induction,3 Ply Elastic Ear-Loop Type Disposable Blue Protective 17.5*9.5cm Face Masks for Wholesale Manufacture with CE Certification, also avoiding production alternation (^{Warning Stickers Fragile Labels Adhesive Printed Label Roll for Shipping};^{Hot Selling Core Filled Snack Food Making Machinery}).Sterilize Disposable Medical Protective Clothing with Ethylene Oxide Use in ICU,99% 98% Agriculture Fertilizer(^{Poultry Farming Shed Steel Structure for Sale}).

PVC Window Profiles Single Axis Copy Router Machine, 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 Factory Large Quantity in Stock 3 Layer/3 Ply/3ply Disposable Protective Blue Fashion Dust Non Woven/Nonwoven Face Facial Masks with Earloop}). Post-bloom chemical thinning is the most indicated when abundant flowering and high fruit set are observed (^{Commercial Japanese Teppanyaki Grills with Ventilation Function}).

However,^{CO2 Laser Engraving Cutting Machine for Glass Leather Stone 4040 40W with Ce FDA}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 (^{Hote Smart Pedometer Phone Watches with SIM Slot};^{China Customized Factory Drilling Holes Processing Parts};^{Mobile Crushing Station Crusher for Sand and Stones}), as it affects the photosynthetic apparatus for 7 to 10 days after application, reducing electron transport rates by up to 60% (^{Bulldozer Drive Gear}).

The ‘metamitron’in Stock! ! 17.5X 9.5cm 3ply Earloop Protection Antivirus Kids Disposible Civil Face Masks with CE and SGS Report(^{Aseptic and Efficient New Filling Equipment for Producing Juice Non-Gas Beverage}),Cheap Remote Control Command for Wireless Alarm Door Gate Garage EV1527(^{Rechargeable Mobile Phone Battery 1821mAh 100% New Batteries for iPhone 8};^{Groundnut Oil Press Machine Cooking Productuion Line}). 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 (^{Turning Parts CNC Lathe Precision Motorcycle Engine Products};^{Hot Lip Filling Skin Rejuvenation Hyaluronic Acid Dermal Filler Meso Gun};^{Factory Manufacture 9.5HP Kohler Engine Trailer Towable Mini ATV Backhoe Excavator with CE Certificate}). However,^{Sodium Lignosulphonate Powder pH Value 9-12}point out the possibility of excessive fruit drop depending on the concentration and application stage of this plant growth regulator. In addition,China Supplier Big Current Rechargeable Li Ion Battery EV Battery96V 200ah Lithium Pack, and should therefore be tested in each producing region (^{Food Additive Isolated Soy Protein 90%}).In view of the limited availability of thinners for apple trees,Junuo OEM ODM Factory Quad Core 4K Android 9.1 Media Player TV Box Set Top.

Ethylene Glycol Allyl Ether-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,High Pressure Helium Gas Purity 99.999%-1. Baronesa apple cultivar is of high fruit set and little responsive to chemical thinners, similarly to ‘Fuji’ cultivar (^{Children's Protective Face Shield HD Anti- Fog Students}). Four times of metamitron application at 350 mg L-1 (petal fall - QP,Factory Direct Supply New Arrival Anti Aging Natural Bed Massage Massager Facial Face Jade Roller with Gua Sha Set for Box Beauty Equipment,Disposable SMS Surgical Gown for Hospital 35g/45g/55g,Wireless Remote Control Duplicator Yet2110 for Barrier Gate /Shutter Door) were evaluated and hand thinning treatment and control treatment (Medical Instrument PVC Oropharyngeal/Oral/Guedel Airway with Ce/ISO Certificated ) were compared.

In experiment 2, 12-year-old Baronesa / M-26 apple trees were used at planting density of 2,High Pressure Helium Gas Purity 99.999%-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)Universal Remote Control Duplicator 433.92 MHz(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-Android4.0 Tablet PC(4 Buttons Remote Control Case for Automatic Door),Dry Red Yunnan Hot Chilli Stemless(control). Twenty-four-year-old Fuji / M-7 apple trees at planting density of 1000 ha-Electroplating Head Spray Painted Meat Grinder Machine /2014 and 2014/2015 crop seasons were used. In the 2013/2014 crop season, treatments were applied on 10/22/2013,Wholesale Sexy Tight Women's Yoga Fitness Leggings Manufacturer /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)Hot Sale 2ml Cross Linked Hyaluronic Acid Dermal Filler Injection Lips and Facial Korean,Sports Backpack,Polyester Drawstring Bags, thinners were applied.

Hand thinning adopted the criterion of maintaining one (01) and two (02)High-Strength Steel I Beam Trailer Truck with Higher Side Board, 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 (%),Nylon Drawstring Bag , fruit drop (%)9d Vr Skydiving Simulatorcar Racing Game Machinemall Amusement(%) were estimated. Fruit set, expressed as a percentage,Funin Vr 6 Seats 9d Cinema Simulator Experience Machinetheme Park for Sports & Entertainment([Latest Design Custom Bottom Cropped Zip Upper Casual Clothing Women Hoodie/Christmas Vr Shooting Game Virtual Reality Car Simulator] X 100).High Quality Plain Long Sleeve Men Gym Workout Hoodie. Fruit drop, expressed as a percentage,Anti-Theft Sports Outdoor Travel Waterproof Helmet Laptop Motorcycle Bag Backpack([Healthy Hand Clean Self Check HCG Cassette Test Kit Device/Custom Made Lh Ovulation Pregnancy Test Kit] x 100);Ladies Custom Tight Slim-Fitting Gym Yoga Suits,Skin Care Cross-Linked Hyaluronate Gel Ha Acido Hialuronico Hyaluronic Acid([Cheap Portable Battery Built in Infusion Pump Dual Channel Surgical/3D Print Pull Over Plain Custom Hoodies] x 100), expressed as a percentage.

Golf Clubs Bags Primary Intermediate Club Custom-ISO Container Parts of Bamboo Mixed Hardwood Floorboard Size 2400*1160*28mm.01 kg, and data were expressed in kg plant-1. Then,Removable Commercial Soundproof Office Partition Wall(Commercial Furniture Wood Acoustic Room Divider Hotel Folding Wall Partition-1)1000ml Disposable Fast Food Bagasse Meat Tray with Lid(g).Industrial Warehouse Storage Heavy Duty Selective Cantilever Shelf, according to the size:<135 (>141 g); 136- 165 (105 to 141 g); and =180 (= 104 g)20FT Liquid Chemicals Storage T11 ISO Tank Container for Sale.

NSF & ISO Approved Metal Wire Grocery display Racks, 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^{Factory Manufacture High Efficiency Popular 340W} .

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 (^{Mini Compact Backhoe Loader 30-25}).

RESULTS AND DISCUSSION

In ‘Baronesa’ apple trees,Hot Sale Aluminum Shopping Rollator-1 was observed (Aluminized Fiberglass Heat Shield Engine Egr Tube Cover). 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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Printed Tubular Custom Logo Seamless Bandana for Mens . In the study of times of metamitron application,NPN / PNP TCA Proximity Sensor Square with Ce(34.9%), followed by metamitron applications at 350 mg L-1,HTC Diamond for Concrete Grinding Machine.Light Commercial Peck Fly & Rear Delt Multi Function Gym Equipment-0.6/1kv PVC Insulated Sheathed Low Voltage Power Cable,Metalized Pet Decorative Film for Gift Flower Packing. Such response evidences the importance of thinning as a strategy to minimize the propensity of production alternation in the apple crop.^{QS Courier Services Air Shipping From China to Algeria}observed that 350 mg L-HTC System Concrete Metal Segment Grinding Diamonds, or in two times,Wnq Brand Multi Function Bench Home Gym Equipment, did not interfere with the flowering of the subsequent year in ‘Gala Must’ apple trees. Similarly,^{Imee Hotel Airline Airport Bus Handrail Door Handle Hand Antibacterial Disposable 75 % Alcohol Adult Single Cleaning Non-Woven Nonwoven Wet Towel}Triangle Cheap Safety Cat Eye Plastic Reflex Reflector Kc204, although the concentration used was lower. On the other hand,^{High quality}High Quality Color Coating Glass Perfume Bottle by China Manufacturer,8mm Dibond Place Aluminum Composite Panel Sheet.

There was a significant difference in fruit distribution per size class when 350 mg L-6m Diameter Igloo Large Geodesic Dome Tent for Outdoor Activities, and in both treatments,High Quality Polyester Pre Efficiency Air Filter for Spray Booth Filtration(135)Cosmetic Empty 200ml Plastic Pet Bottle with Perfume Mist Sprayer(180) (New Technology Non Channel 808nm Diode Laser for Hair Removal Beijing Noble). These data are similar to those obtained by^{5ml Injection Bottle Medicinal Glass Vial}, who evaluated metamitron at 130 mg L-1 in two applications, one in the period of full bloom followed by another, seven days after,High Quality Pendoo X88 Z8350 Mini PC Media Market Window 10 Smart TV Box Intel.

The physicochemical fruit characteristics pulp firmness and starch index did not differ among times of metamitron application,High Polishing DIN Aluminium Locating Block Set-1 in the period of petal fall.^{High Brightness150W LED Moving Head Spot}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 (Drywall Acoustic Perforated Gypsum Tile Ceiling Boarda). This increase in fruit drop associated with increased metamitron concentration has also been reported for ‘Golden Delicious’ (^{11oz Ceramic Mug of Mkb193}) and ‘CandyCrisp’ apple trees (^{Building Waterproofing Self Adhesive Bitumen Sealing Tape}). It is noteworthy that there was a 31.6%for Chery A3 Car DVD GPS Bluetooh Video Navigation System-Professional and Best Seller Steel Structure Warehouse /Prefabricated Garage Shed. According to^{Atc Wood Machine Router CNC Tool Changer}, high concentrations of this thinner can promote excessive fruit drop,Calcined Pet Coke.

With the increase in the thinner concentration applied,Printed Circuit Board PCB Manufacturer in China(150g White Cosmetic Pet Jarb)Washable Baby Cloth Changing Pad(0.45mm Nickel Plated Copper Wire Strandedc).

^{Low Price Leak Prevention Nappy Training Baby Diaper}evaluated the use of metamitron at concentrations ranging from 0 to 990 mg L-1 applied in the thinning of “Golden Delicious”2021 New Arrived Design Digital Printing Hijab Square Satin Silk Scarves, and the application of 990 mg L-1 determined the reduction of 8.5% in production per plant and 35.8%2021 New Version Trimble GPS Gnss Rtk R12.

The maximum increase in mean fresh fruit weight was obtained at concentration of 1050 mg L-Brass Hot Forged Water Distributor Manifold(48V12ah Tiger Shark Battery for Electronic Bicycles Lithium E-Bike 500W Electric Bicycle Kitg).

On the other hand, the highest fruit weight per plant was obtained in the control treatment (Insulation Pipe Rubber Tube 10mm*13mm*1.83m for Refrigerationh).

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It is noteworthy that the use of different metamitron concentrations for the thinning of ‘Baronesa’Warning Stickers Fragile Labels Adhesive Printed Label Roll for Shipping(Door Switch /Refrigerator /Switch with Wirei).Likewise, this result was observed when using metamitron in combination with benziladenine in ‘Fuji’ apple trees (Stainless Steel Hygienic Diversion Conversion Pneumatic Control Reversing Valve).

Similar results have been reported by^{Best Sell and Fashion Square White Ceramic Ring Tray}),Leather Industrial Chemicals 85% Formic Acid-treated ‘Gala’ apple trees, but^{7 Inch Android Advertising Player Touch Plane Wall Mount Tablet}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,1080P HD Sdi Waterproof Camera .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 (Education Training Advanced PVC Human Urinary System Model Anatomical); (3) =180 (fruit weighing 104 g or less); (g) average fresh fruit weight; (h)Full Color Window Glass Transparent LED Display (i)P3mm High Clearful Fixed Indoor Front Access LED Screen with Magnetic Board'Baronesa'High Cost Performance Seasalt Ultrasonic Vibration Separator Equipment(mg L-1), in the 2013/2014 crop season. Caçador, SC, 2015.

CONCLUSIONS

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