Citrus rootstock varieties are routinely propagated via_________________?
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Answer: A. Seeds
Explanation
Citrus rootstocks are commonly raised from seeds to maintain genetic uniformity and vigor, and to avoid viral pathogens. Nucellar embryony in many citrus species produces seedlings that are genetic clones of the maternal parent. This unique reproductive trait ensures reliable rootstock performance in nursery production. Rootstocks provide the underground root system for grafted fruit trees, influencing disease resistance and soil adaptability. Propagating rootstocks from seed is often more economical and phytosanitarily safe than vegetative cuttings.
Citrus nurseries rely on seed-propagated rootstocks to supply healthy, uniform trees for commercial orchard establishment. Selecting the right rootstock protects orchards against soil-borne pests like nematodes and root rot. Option B, cutting, is less common for rootstocks because seeds offer better taproot development and disease freedom. Option C, buds, are used for the scion variety rather than the base rootstock itself. Option D is incorrect because seeds are the primary method.
- Subject
- Agriculture
- Category
- Agriculture
- Topic
- —
- Difficulty
- medium
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