SF1 Apple Tree Red Skin Color Mutation

The patent applies parameter changes by selecting and propagating a spontaneous limb sport mutation of 'Scifresh' that exhibits altered pigment parameters. The mutation results in higher anthocyanin content and different color expression patterns, achieving near red 53A hue with 96% skin coverage compared to the parent's 73% coverage and lighter intensity. This natural genetic parameter change resolves the contradiction by simultaneously improving color intensity and consistency.

The patent applies self-service by allowing the spontaneous mutation to naturally stabilize through vegetative propagation. The limb sport mutation was discovered growing in the cultivated area and was selected for observation because of its fruit skin color. Through multiple generations of asexual propagation and orchard planting (2011, 2013, 2015, 2018, 2019), the variety demonstrated true-to-type characteristics, confirming genetic stability without requiring additional genetic engineering or complex stabilization procedures.

The patent applies taking out by extracting and isolating the desired spontaneous limb sport mutation from the parent 'Scifresh' population. The mutation was discovered in a cultivated area and was separated for focused observation and propagation. This extraction approach allowed the breeder to capture the high over color percentage trait (96% vs 73%) without having to develop complex breeding programs, as the mutation already possessed the desired characteristics in a stable form ready for propagation.