Cucumber Variety NUN 53016 CUP Parthenocarpic Breeding
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Solution Overview
Problem
Current cucumber breeding efforts have not fully met the need for new varieties with improved traits such as longer fruit length, unique blossom end stripes, finer spine quality, higher tubercle density, and earlier market maturity, which are desirable for both fresh market and processing purposes.
Innovation Solution
Development of the cucumber variety NUN 53016 CUP, which exhibits distinct morphological and physiological characteristics including longer fruit length, yellowish blossom end stripes, fine spine quality, higher tubercle density, and earlier maturity, achieved through selective breeding and stabilization of these traits in hybrid seeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If traditional cucumber breeding methods are used, then existing varieties are maintained, but fruit length, spine quality, and maturity traits remain insufficient
Solution Approach 1:
The patent applies parameter changes by systematically modifying multiple genetic parameters through controlled crossing and selection. The breeders changed fruit length, spine quality, tubercle density, and maturity parameters by selecting specific parental lines with desirable trait combinations and stabilizing these parameters through repeated selfing and selection cycles to achieve consistent F1 hybrid performance.
Solution Approach 2:
The patent employs preliminary action by developing and stabilizing parental lines before producing the final hybrid variety. The breeders performed preliminary crossing and selection to create homozygous inbred lines with fixed desirable traits, ensuring that when these lines were crossed to produce NUN 53016 CUP, the offspring would consistently express the desired fruit length, spine quality, and maturity characteristics.
2Productivity
If gynoecious hybrid plants are grown to increase yield, then fruit production increases, but pollen availability becomes limited requiring addition of monoecious plants
Solution Approach 1:
The patent applies universality by developing a gynoecious hybrid variety that maintains both high fruit production capability and pollen receptivity. The variety is designed to function dually as both a high-yielding female plant and a plant that can receive pollen from complementary male lines, eliminating the need to interplant with monoecious varieties while ensuring successful pollination and fruit set.
3Reliability
If parthenocarpic varieties are grown to produce seedless fruit, then fruit quality improves, but isolation from seeded cucumbers is required to avoid pollination
Solution Approach 1:
The patent applies the taking out principle by extracting the seed development pathway from the fruit production process. The variety is bred to set fruit parthenocarpically, removing the requirement for pollination and seed development, thereby eliminating the need for isolation from seeded cucumber varieties while maintaining high fruit quality and yield characteristics.
4Manufacturing precision
If selective breeding is performed to achieve specific traits, then fruit length and quality improve, but breeding time and complexity increase
Solution Approach 1:
The patent reduces breeding time by performing preliminary stabilization of parental lines before hybrid production. The parental lines were pre-selected and pre-stabilized for the desired traits (fruit length, spine quality, tubercle density, maturity), allowing the F1 hybrid to express these traits consistently without requiring extended breeding cycles for trait stabilization.
Solution Approach 2:
The patent achieves precise trait control by systematically changing and stabilizing specific genetic parameters through controlled crossing. The breeders focused on modifying key parameters (fruit length, spine quality, maturity) through selective crossing and stabilization, achieving precise trait expression in the F1 hybrid while minimizing the time required compared to traditional breeding methods.
Data Source
AI summary
The invention relates to the field of Cucumis sativus, in particular to a new variety of Cucumis sativus designated NUN 53016 CUP plants, seeds and cucumber fruits thereof.