RA/17 Mango Tree Early Maturity and Shelf Life
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Solution Overview
Problem
Existing mango varieties, such as 'Honey Gold' and 'Van Dyke', are late maturing, which limits their availability and marketability, and there is a need for a variety with earlier fruit maturity and improved shelf life.
Innovation Solution
The 'RA/17' mango tree, resulting from a controlled cross between 'Irwin' and 'R2E2', exhibits earlier maturity, improved flavor, and longer shelf life, characterized by a vigorous growth habit, dense flowering, and fruit attributes like medium size, orange color with red blush, and high sweetness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If existing mango varieties like 'Honey Gold' and 'Van Dyke' are used, then fruit quality and flavor are maintained, but fruit maturity is delayed
Solution Approach 1:
The patent applies parameter changes by selecting and breeding mango varieties with specific genetic parameters that result in earlier maturity. The 'RA/17' variety was developed through controlled crossing and selection to achieve a maturity parameter that is earlier than parent varieties 'Irwin' and 'R2E2', while maintaining fruit quality parameters through true-to-type reproduction in asexually propagated generations.
Solution Approach 2:
The patent employs preliminary action through early selection of promising seedlings from controlled crosses before full maturation occurs. The variety 'RA/17' was identified and selected from seedlings planted in 1997 based on anticipated characteristics, then propagated asexually to ensure consistent expression of early maturity and quality traits in subsequent generations.
2Duration of action of stationary object
If existing mango varieties are cultivated, then market availability is limited by late maturity, but early maturing varieties may compromise on shelf life
Solution Approach 1:
The patent simultaneously optimizes multiple parameters by developing 'RA/17' with both earlier maturity and extended shelf life. This is achieved through selective breeding that modifies the maturity timeline parameter while preserving or enhancing shelf life parameters, creating a variety that outperforms both early and late maturing parent varieties in this combination of traits.
Solution Approach 2:
The patent creates a composite genetic structure by controlled crossing of parent varieties 'Irwin' and 'R2E2' to produce offspring combining desirable traits. The resulting 'RA/17' variety integrates genetic material from both parents to achieve a composite phenotype that includes earlier maturity than either parent while maintaining improved shelf life characteristics.
3Speed
If controlled crossing and selection is performed to achieve early maturity, then fruit maturity is accelerated, but breeding complexity increases
Solution Approach 1:
The patent reduces breeding complexity through preliminary action by pre-selecting parent varieties with known desirable traits before crossing. The controlled cross between 'Irwin' and 'R2E2' was designed with predetermined selection criteria, and seedlings were evaluated against established standards, streamlining the breeding process while achieving early maturity.
Solution Approach 2:
The patent employs copying through asexual propagation by grafting to replicate the selected 'RA/17' genotype. This creates true-to-type copies of the early-maturing variety, eliminating the need for repeated complex crossing and selection processes while maintaining consistent expression of early maturity and quality traits across generations.
Data Source
AI summary
A new mango tree named ‘RA/17’, distinguished by its attractive fruit having excellent flavor and a long shelf life.