HS RED Apple Tree Compact Form and Fruit Quality via Rootstock Selection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing apple tree varieties, such as 'Oregon Spur II', lack distinct fruit characteristics, spur development, and blooming dates, resulting in less compact tree forms and differences in skin and flesh color development, sugar, acid, and pH levels, which are not consistently observed in storage.
Innovation Solution
The introduction of the 'HS RED' apple tree variety, which is a whole tree bud mutation of 'Oregon Spur II', exhibits more intense spur development, compact tree form, conical fruit shape, and distinct skin and flesh coloration, along with higher sugar content, acidity, and lower pH, differing from its parent when grown on M106 rootstock.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If 'Oregon Spur II' apple tree is grown on M106 rootstock, then it produces fruit with conventional characteristics, but the tree form is less compact and spur development is less intense
Solution Approach 1:
The patent applies parameter changes by selecting specific rootstock (M9 or M26) instead of M106, which fundamentally alters the growth parameters of the apple tree. This rootstock selection results in more intense spur development and a more compact tree form while maintaining the conical fruit shape and skin color characteristics of the 'Oregon Spur II' variety.
2Illumination intensity
If fruit skin color develops late as in 'Oregon Spur II', then harvest timing is extended, but skin color uniformity and intensity are reduced
Solution Approach 1:
The patent applies parameter changes by modifying the physiological parameters of the apple tree through bud mutation and specific rootstock selection. This results in accelerated skin color development that occurs three months prior to harvest, with fully uniform wash-type coloration, while maintaining the conical fruit form and other quality characteristics.
3Quantity of substance
If fruit composition remains conventional as in 'Oregon Spur II', then storage characteristics are maintained, but sugar, acid, and pH levels are lower
Solution Approach 1:
The patent applies parameter changes by selecting specific rootstock (M9 or M26) and utilizing bud mutation to alter the biochemical parameters of the fruit. This results in higher sugar content, higher acid levels, and lower pH compared to 'Oregon Spur II' fruit, while the fruit maintains good storage characteristics and quality consistency.
Data Source
AI summary
A new and distinct variety of apple tree is described, and which is characterized as to novelty by producing an attractively colored apple, which is mature for harvesting and shipment on October 2 through October 5, under the ecological conditions prevailing in Chelan County, Wash.