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Production of Rice Seed in Irrigated Environments |   |
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Isolation for rice seed production | |
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Be able to understand the need for maintaining the appropriate isolation distance between seed production plots. | |
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Although rice crop is a self-pollinated crop, cross pollination of up to 5% can occur due to:
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| isolation | Isolation is the separation of a seed crop from all possible sources of contamination during the growing period and is one of the main ways of maintaining varietal purity.
Isolation is primarily achieved through maintaining a safe distance between different crops. The "isolation distance" between a seed crop of a particular variety and a crop of a different variety is a space separating the crops large enough to prevent cross pollination. Research has shown that a 3 meters isolation distance from other varieties is needed for rice seed production. That is, the use of a 3 meters buffer zone surrounding a crop will prevent cross-pollination.
The isolation distance is compulsory for seed producers if they wish their multiplied seeds certified by the appropriate authority. |
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Next lesson
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The next lesson reviews weed management in rice seed fields. | |
