Uniform resistance expressed by a crop variety across all insect biotypes represents__________________?
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Answer: C. General resistance
Explanation
General resistance provides uniform protection that is expressed across all insect biotypes. Crop varieties possessing this trait exhibit stable defense against diverse pest strains. Broad-spectrum durability prevents pests from easily overcoming the plant's defense mechanisms. Quantitative trait loci often govern this type of consistent, multi-strain resistance. Plant breeders value general resistance for providing reliable protection in diverse environments. Pest populations struggle to evolve workarounds against broad-spectrum plant defenses.
Agronomists recommend resilient crop varieties to reduce reliance on chemical insecticides. Sustainable farming systems depend on durable resistance traits to protect seasonal yields. Agricultural research stations continuously screen germplasm for broad-spectrum pest defense. Cross resistance relates to pesticide chemical tolerances rather than natural plant defenses. Specific resistance targets narrow strains and is vulnerable to rapid pest adaptation. Vertical resistance involves major genes that fail when new insect biotypes emerge.
- Subject
- Agriculture
- Category
- Agriculture
- Topic
- —
- Difficulty
- medium
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