Fruit rows are a millimetre problem, not a horsepower problem. Send the alley width. We will not guess it from a photo of trees.
JT-454N class
45 HP, 4WD, folding ROPS so it clears netting. Minimum width is typically in the 1,150–1,280 mm range depending on tyres. Confirm the axle on the quote.
When HST is the better orchard machine
If you spend the day inching with a mower or a sprayer, hydrostatic travel (JT-254 HST) beats a shuttle gearbox. Pedal speed, two-pedal reverse.