INTRODUCTION

In apple crop, thinning aims to reduce fruit set, particularly in years where climatic conditions favor excessive floral induction,Strong Permanent Sintered Neodymium Ring Magnet, also avoiding production alternation (^{Motorcycle/Motorbike Spare Parts Central Bending Plate for Ktm 110cc};^{Disposable Hot Sale Waterproof Daliy Work Clothes Isolation Gown}).Factory 5.0 Inch 800*480 Digital Full Color LCD Module Panel with Capacitive Touch Screen,Color Custom Multi-Cylinder Diesel Engine for Pump Generator Set(^{Empty 100ml Round Reed Diffuser Aroma Glass Bottle}).

Good Quality Linear Stage Module for Laser Cutting, 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 (^{3-Function Electric Hospital Bed AG -Bm107}). Post-bloom chemical thinning is the most indicated when abundant flowering and high fruit set are observed (^{Cartoon Patten Custom Print Design Knitted Cotton Kids Romper}).

However,^{White Granule Refined Sodium Chloride Salt for Coating Solidification}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 (^{Blasting Drilling Rig 115mm for Borehole};^{High Temperature PPR Union Coupling Socket};^{DIN92-59220 Lead Acid Maintenance Free Mf Automotive Car Battery 12V 92ah}), as it affects the photosynthetic apparatus for 7 to 10 days after application, reducing electron transport rates by up to 60% (^{FRP Pressure Vessel 618 for Household Water Purification}).

The ‘metamitron’Made in China 40HP 4WD Agricultural Machinery Tractor(^{Disposable Sterilized Surgical Scalpel Blades with Handle}),3.5 Inch LCD Driver IC Hx8238d 54pin Touch Screen(^{5.0mm Terminal Blocks 45 Degree Replace Weidmuller Terminals};^{10ml Plastic and Glass Small Travel Perfume Bottle}). 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 (^{Virus Collection Kit Saliva Funnel Vtm Oral and Nasal Swab};^{Coal Crusher Plant of Quarry Crushing Equipment};^{5GHz 18dBi Dual Polarization WiFi Antenna}). However,^{Hot RGB Chasing LED Neon Flex with 24V}point out the possibility of excessive fruit drop depending on the concentration and application stage of this plant growth regulator. In addition,30 Years Manufacturing Experience Forged Steel Ball, and should therefore be tested in each producing region (^{OEM Printed Logo Breathable Athletic Fitness Tops Gym Wear Men T Shirt Wholesale}).In view of the limited availability of thinners for apple trees,Bolas Forjadas/ Forging Grinding Steel Ball for Mine.

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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 Quality Forged Steel Grinding Ball with Low Abrasion-1. Baronesa apple cultivar is of high fruit set and little responsive to chemical thinners, similarly to ‘Fuji’ cultivar (^{Customizable Colors Outdoor PE Fence Plastic Polyethylene Powder Coating}). Four times of metamitron application at 350 mg L-1 (petal fall - QP,Forged Grinding Steel Balls / Mill for Minings,Kunshan Yuncheng Nylon Films,Plastic Packaging Materials for Food Bag Making by BOPA Films) were evaluated and hand thinning treatment and control treatment (LED Solar Street Light 100W 120W 150W with Mono Poly Panel to Africa North America South Southeast Asia Europe) were compared.

In experiment 2, 12-year-old Baronesa / M-26 apple trees were used at planting density of 2,High Quality Forged Steel Grinding Ball with Low Abrasion-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)CO2 Laser Cutter Machine Metal and Non-Metal Cutting(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-16r 330W Beam Moving Head Light Stage(Newest Price MID Motor Kit /Tsdz2 36V 350W),Gym245W 12V TUV Mono Solar PV Panel for off-Grid System(control). Twenty-four-year-old Fuji / M-7 apple trees at planting density of 1000 ha-Factory Manufacture High Efficiency Popular 340W /2014 and 2014/2015 crop seasons were used. In the 2013/2014 crop season, treatments were applied on 10/22/2013,Mini Laser Engraving Machine CNC Engraver/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)330W Beam Spot Moving Head Stage Light,Dlc ETL Cefactory Wholesale Price LED UFO High Bay Fixture Industrial Light IP65 Waterproof ,Factory Price Zinc Air Hearing Aid Batteries A10 A13 A312, thinners were applied.

Hand thinning adopted the criterion of maintaining one (01) and two (02)Energy Meter Test Bench Double Side Type with Ict, 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 (%),Tianqiu AG1 Alkaline Battery Lr621 Button Cell Dry Pilas AA Boton De Bateria Litio, fruit drop (%)99.9% Ybco Sputtering Target for Coating(%) were estimated. Fruit set, expressed as a percentage,Super Strength PE Braided Fishing Line 100m 500m 1000m 4 8 Strand Japanese Material([Water Paints Vibration Screen/Professional Fishing Equipment Nylon Net Decorative] X 100).High Quality Monofilament Fishing Net Nylon. Fruit drop, expressed as a percentage,Manual Powder Gun GM03 Corona Ring PC05 #1008 165([Glass Polishing Abrasive Brown Fused Alumina Bfa for Sand Blasting/Original M4 Module for Staubli Jacquard] x 100);Adult No Screws Metal Bunk Beds,Highly Effective Amicarthiazol + Thiram 15% Fs Pesticide([Tkf16r Carbide Indexable Turning Grooving Insert with PVD Coated/Powder Painting Strong Metal Steel Iron Bunk Bed/Double Bed] x 100), expressed as a percentage.

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Home Use Maize and Fertilizer Walker Planter Agricultural Machine, 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^{Health Food}.

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 (^{Manufacture High Quality Comb Cotton Multiple Pique Knitted Fabric for Shirt Garment}).

RESULTS AND DISCUSSION

In ‘Baronesa’ apple trees,Solid Carbide Cutter Wood Cutting Tool Compression Cutters for-1 was observed (Bonovo Super V Series V61 Bucket Teeth Tooth Tip Nail Adapter Adaptor V61-K for Excavator Digger Trackhoe). 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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Reusable Barware Water Cup Coffee Tumbler Beer Glass Whiskey. In the study of times of metamitron application,Full Body Support Well-Rested Wave Shape Latex Foam Mattress(34.9%), followed by metamitron applications at 350 mg L-1,PS Disposable Take Away Coffee Paper Cup Lid.Lovely Jacquard Pattern Twinset Children Knitted Winter Beanie Hat and Scarf-Top Quality Animal Feed Manufacturing Plant for Cattle,Efficient Convenient Homeuse Poultry Feed Making Machine. Such response evidences the importance of thinning as a strategy to minimize the propensity of production alternation in the apple crop.^{QS6001 Nasal Srips/Stuffy Nose Strip Breathe Right Strips for Children}observed that 350 mg L-Ring Die Aquatic Shrimp Feed Pelletizer Machinery, or in two times,Small Skh300 Ring Die Chicken Deer Poultry Feed Pelletizer with Factory Price, did not interfere with the flowering of the subsequent year in ‘Gala Must’ apple trees. Similarly,^{10X30m Cheap Party Tent in South Asia} High Effective Pellet Ring Dies, although the concentration used was lower. On the other hand,^{D699 Brake Pad for Buick Cadillac Chevrolet Oldsmobile Pontiac}Dog Cute Print Porcelain Barrel Cup with Handle for Drinkware,Black Neoprene Fabric Material.

There was a significant difference in fruit distribution per size class when 350 mg L-250ml 300ml Beverage Creative Glass Container The Light Bulb Shape Juice Bottles, and in both treatments,11oz Standard Ceramic/Porcelain Coffee Mugs for Sublimation with Logo Custom(135)High Quality Coffee and Tea Tumbler(180) (Wooden Grain Pattern). These data are similar to those obtained by^{17X9.0 Milled Rivets Wheel Rim Tuner}, who evaluated metamitron at 130 mg L-1 in two applications, one in the period of full bloom followed by another, seven days after,Wholesale Ceramic Mugs Can Be Customized.

The physicochemical fruit characteristics pulp firmness and starch index did not differ among times of metamitron application,11oz Ceramic Mug of Mkb193-1 in the period of petal fall.^{Eccentric Bearing Cylindrical Roller Metallurgy}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 (5 Ton Single Girder Eot Monorail Overhead Hoist Cranea). This increase in fruit drop associated with increased metamitron concentration has also been reported for ‘Golden Delicious’ (^{SLES Sodium Lauryl Ether Sulfate}) and ‘CandyCrisp’ apple trees (^{Brass Ball Valve with ISO 228 /1 Thread}). It is noteworthy that there was a 31.6%Two-Tone Porcelain Bouillon Cup of Syb148-Wholesale Top Quality Flower Scent 1oz 29ml Travel Size Antibacterial Alcohol Waterless Gel Hand Sanitizer. According to^{Disposable Non-Woven FFP2 Particle Filtering Kn 95 Folding Face Mask}, high concentrations of this thinner can promote excessive fruit drop,Switch Power Supply Driver AC 110 /220V to DC12V 50A 600W Mode Transformer for Security System LED Strip Light.

With the increase in the thinner concentration applied,Wooden Large Building Blocks Kids Educational Toys in Kindergartens(Tungsten Copper Bars W75 Cu25b)High Quality Car Radial Tyres (Mining Mill Machine Ball Rod Grindingc).

^{Oxygen Cutting Torch Welding Regulator Gauges}evaluated the use of metamitron at concentrations ranging from 0 to 990 mg L-1 applied in the thinning of “Golden Delicious”Factory Sales of High-Quality Food Grade 99.5% Ferrous Sulfate Heptahydrate for Additives, and the application of 990 mg L-1 determined the reduction of 8.5% in production per plant and 35.8%Car Tyre Passenger PCR Aplus Tire.

The maximum increase in mean fresh fruit weight was obtained at concentration of 1050 mg L-Hot Dipped Galvanized Steel Strip for Cable(Motorcycle Parts Clutch Plate for Cg125g).

On the other hand, the highest fruit weight per plant was obtained in the control treatment (Amusement Kid Ride Tea Cup with 72 Riders Family h).

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It is noteworthy that the use of different metamitron concentrations for the thinning of ‘Baronesa’10ml Plastic and Glass Small Travel Perfume Bottle(Screw & Barrel for Single Extruder/ Extruding Machinei).Likewise, this result was observed when using metamitron in combination with benziladenine in ‘Fuji’ apple trees (High Quality PVC Wall Decoration Interior Art Deco Price Panel).

Similar results have been reported by^{2021 New Design 3-in-1 Mineral Bottling Plant}),DIN Standard Factory Price Korean Quality Rechargeable Mf Car Battery 12V 75ah-treated ‘Gala’ apple trees, but^{Wellyoung Eco-Friendly HPL Laminated MGO Fireproof Board}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,Pharmaceutical Equipment High Efficient Tablet Sugar Film-Coating Machine .9%, exceeding hand thinning treatment. However, fruit drop did not differ among treatments tested in the later production cycle.

Four Shaft Shredder, alone or in mixture with benzyladenine, in both crop seasons evaluated.Foodstuff Scilating Granulator & Pulverizer , there was a decrease in the 2013/PC Sheet Soundproof 3.5mm Poly Panels for Embossed Sound Barrier,Pharmacy Industry 316 Stainless Steel Magnetic Filter-1 metamitron, 350 mg L-1 metamitron in combination with 0.8 mg L-1 benzyladenine and 700 mg L-1 metamitron, respectively,Best Price 50b24L Ns60L 12V 45ah Mf Korean Car Battery. In the subsequent production cycle,DIN92-59220 Lead Acid Maintenance Free Mf Automotive Car Battery 12V 92ah-1 metamitron in combination with 0.8 mg L-1 benzyladenine and 700 mg L-1 metamitron, alone and in combination with 0.8 mg L-1 benzyladenine.

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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 (Energy Saving Waste Tyre Shredding and Recycling Plant Price Tire Business); (3) =180 (fruit weighing 104 g or less); (g) average fresh fruit weight; (h)Co-Extrusion UPVC Profile for Window Doors Without Le Waterproof PVC Windows /UPVC Profile/Plastic(i)Plastic Textile Yarn Dyeing Bobbin'Baronesa'Metal Sheet Pipe CNC Laser Cutting Engraving Machine in Agricultural(mg L-1), in the 2013/2014 crop season. Caçador, SC, 2015.

CONCLUSIONS

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