Dual Purpose Pollenizer Watermelons for Triploid Production
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Solution Overview
Problem
Current pollenizer plants for triploid watermelon production either produce unsuitable fruits for consumption or are not marketable, with existing varieties resulting in fruits that are either of poor quality or not harvestable due to size and sugar content issues.
Innovation Solution
Development of diploid watermelon plants that produce small, edible fruits with an average weight of less than 2.0 kg, preferably less than 1.8 kg, and a high brix content of at least 7.5%, suitable for both pollination of triploid plants and as a marketable diploid fruit product, with characteristics such as dark red flesh and compact vine growth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated pollenizer plants are used to provide sufficient viable pollen for triploid fruit production, then pollination effectiveness is improved, but the diploid fruits produced on pollenizer plants are of poor quality or unsuitable for consumption
Solution Approach 1:
The pollenizer plant is designed to perform dual functions: producing sufficient viable pollen for pollinating triploid plants and simultaneously producing high-quality diploid fruits suitable for consumption. This multi-functionality resolves the contradiction by making the pollenizer both a reliable pollination source and a marketable fruit producer.
Solution Approach 2:
The patent applies parameter changes to fruit size and sugar content to create diploid fruits that are both harvestable and high-quality. By selecting for specific parameters (fruit weight <2.0 kg, brix ≥7.5%), the pollenizer produces fruits that meet consumption standards while maintaining pollination effectiveness.
2Quantity of substance
If pollenizer plants produce large diploid fruits, then fruit quantity is increased, but the fruits become unsuitable for fresh consumption and marketable as personal-size produce
Solution Approach 1:
The patent changes the fruit size parameter to produce small diploid fruits (average weight <2.0 kg, preferably <1.8 kg). This parameter change makes the fruits suitable for fresh consumption as personal-size produce while maintaining sufficient fruit quantity for marketability.
Solution Approach 2:
Instead of maximizing fruit size, the patent applies partial action by producing moderately small fruits that are sufficient for consumption purposes. This avoids the excessive size that would make fruits unsuitable for fresh eating while maintaining adequate quantity.
3Weight of moving object
If pollenizer plants produce fruits with low brix content, then fruit size can be increased, but the fruit quality and sugar content become unsuitable for fresh consumption
Solution Approach 1:
The patent applies parameter changes to both fruit weight and brix content simultaneously. By selecting for fruits with average weight <2.0 kg and brix ≥7.5%, the patent achieves the optimal balance between fruit size and sugar content for fresh consumption marketability.
Solution Approach 2:
The patent uses partial action by producing fruits with moderate size and adequate sugar content rather than maximizing either parameter. This partial approach to fruit development ensures both edibility and marketability.
4Quantity of substance
If standard vine length pollenizers are used, then pollen production is sufficient, but the plants require more space and are less suitable for intensive planting arrangements
Solution Approach 1:
The patent segments the pollenizer plant into a compact form with reduced vine length. This segmentation of the plant's vegetative growth allows sufficient pollen production in a condensed space, enabling intensive planting arrangements while maintaining pollination effectiveness.
Solution Approach 2:
The patent transitions the pollenizer from standard vine length to compact vine length, changing the spatial dimension of plant growth. This dimensional change reduces the area occupied by each plant while maintaining or enhancing pollen production capability.
Data Source
AI summary
The application relates to the field of plant breeding, in particular watermelon breeding. Provided are diploid watermelon plants (and seeds from which these plants can be grown) which produce small, diploid, red watermelon fruits. Also provided are small, diploid watermelon fruits having an average weight of less than 1.8 kg.