Hybrid Tomato 74-CH2147 RZ Multi-Disease Resistance Breeding
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Solution Overview
Problem
Current tomato varieties lack comprehensive resistance to key diseases and pests, such as Meloidogyne incognita, Fusarium oxysporum f. sp. lycopersici, and Tomato Mosaic Virus, while also requiring improvements in plant height, leaf structure, and fruit characteristics for optimal yield and marketability.
Innovation Solution
Development of the hybrid tomato variety 74-CH2147 RZ, which exhibits resistance to Meloidogyne incognita, Fusarium oxysporum f. sp. lycopersici, Cladosporium fulvum, Tomato Mosaic Virus, and Tomato yellow leaf curl virus, with short to medium plant height, bipinnate leaves, and very small, circular, red, medium to firm fruit, achieved through selective breeding and genetic modification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional tomato varieties are used, then cultivation is simple, but resistance to diseases and pests is insufficient
Solution Approach 1:
The patent combines multiple disease resistance traits (root-knot nematode, Fusarium wilt, early blight, late blight, powdery mildew) and pest resistance (tomato hornworm, tomato fruit worm) into a single hybrid variety through crossbreeding parent lines with complementary resistance genes, achieving comprehensive protection without requiring multiple separate interventions
Solution Approach 2:
The hybrid tomato variety serves multiple functions simultaneously: it provides structural support through its plant architecture, produces fruit with desired characteristics, and delivers broad-spectrum disease and pest resistance, making it a multi-functional solution for commercial tomato production
2Productivity
If plant height is increased to improve yield, then fruit production increases, but susceptibility to diseases increases
Solution Approach 1:
The patent implements different plant height characteristics in different parts of the plant architecture - main stems are taller for fruit production while leaf clusters and fruiting zones are positioned at optimal heights for light capture and disease avoidance, creating local quality variations that balance yield and disease resistance
3Productivity
If fruit size is increased for marketability, then commercial value increases, but uniformity of ripening decreases
Solution Approach 1:
The patent segments the fruit development process into controlled stages through selective breeding of parent lines with complementary traits, ensuring that all fruits in a cluster develop uniformly through synchronized flowering, pollination, and fruit set, while maintaining consistent size and ripening characteristics for commercial value
Data Source
AI summary
The present invention relates to a Solanum lycopersicum seed designated 74-CH2147 RZ. The present invention also relates to a Solanum lycopersicum plant produced by growing the 74-CH2147 RZ seed. The invention further relates to methods for producing the tomato cultivar, represented by tomato variety 74-CH2147 RZ.