Gamma Irradiated Lemon Tree Reducing Seed Quantity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lemon varieties tend to produce high seed quantities, which can be undesirable for commercial and culinary purposes, and there is a need for a variety that consistently produces low seed numbers without compromising fruit size.
Innovation Solution
The '7 ELS C3' lemon variety is developed through gamma irradiation of 'Eureka' lemon bud sticks, which are then budded onto 'Carrizo' rootstock, resulting in a consistent low seed count and maintaining fruit size, with successive generations reproducing true to type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional lemon varieties are used, then fruit size is maintained, but seed quantity is high
Solution Approach 1:
The patent applies gamma irradiation to induce genetic mutations in the lemon variety, changing the biological parameters of seed development. This radiation-induced mutation selectively reduces seed quantity while preserving other fruit quality parameters such as size, weight, and commercial characteristics.
2Quantity of substance
If seed quantity is reduced through mutation, then fruit quality may be compromised, but the invention maintains both low seeds and high quality
Solution Approach 1:
The patent employs systematic selection and testing of mutated plants over multiple generations to identify and propagate only those variants that exhibit both low seed quantity and maintained fruit quality. This feedback loop ensures reliable reproduction of desirable traits while eliminating unwanted variations.
Solution Approach 2:
The patent performs preliminary gamma irradiation treatment on bud sticks before propagation, pre-selecting for the desired low-seed trait at the earliest stage. This preliminary action ensures that subsequent generations inherit the desired characteristics, maintaining reliability across multiple generations.
3Quantity of substance
If gamma irradiation is applied to reduce seeds, then genetic stability may be affected, but successive generations reproduce true to type
Solution Approach 1:
The gamma irradiation is applied preliminarily to bud sticks before propagation, creating stable genetic mutations in the early developmental stage. This timing ensures that the genetic changes are established before the plant undergoes extensive growth and differentiation, promoting genetic stability in subsequent generations.
Solution Approach 2:
The patent propagates the mutated lemon variety through budding and grafting, creating genetically identical copies of the selected low-seed plant. This asexual reproduction method ensures that the genetic composition, including the reduced seed trait, is faithfully replicated across successive generations without further mutation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The '7 ELS C3' lemon variety consistently produces few seeds, maintaining mean fruit length and diameter comparable to 'Eureka', while offering improved seed reduction without affecting fruit quality or size, making it suitable for commercial use.
Implementation Method 1
Gamma irradiation from a Gammacell 200 (60C) source was applied to bud sticks of 'Eureka' in 1998
Data Source
AI summary
‘7 ELS C3’ is a new and distinct lemon tree notable for its high quality seedless fruit.