3. Crop Production
Variety Selection — Quiz
Test your understanding of variety selection with 5 practice questions.
Practice Questions
Question 1
A plant breeder is developing a new soybean cultivar. They are specifically focusing on improving the oil content and protein percentage of the harvested beans to meet the demands of a specialized processing industry. Which cultivar selection criterion is being primarily addressed in this breeding program?
Question 2
Consider a scenario where a new wheat cultivar shows exceptional 'yield potential' under controlled experimental conditions with optimal irrigation and fertilization. However, when planted in a farmer's field with typical rainfall and nutrient availability, its yield is significantly lower. This discrepancy primarily highlights a limitation in which selection criterion?
Question 3
A seed lot is marketed as 'Certified Seed' and bears a specific tag indicating its class. What is the most significant implication of this certification for a farmer regarding the genetic integrity of the cultivar?
Question 4
A farmer is evaluating two corn cultivars for a field with a known history of severe drought stress during the reproductive phase. Cultivar A has a high 'yield potential' under irrigated conditions, but its drought tolerance is unknown. Cultivar B has a slightly lower 'yield potential' but is known to have excellent drought tolerance. Which cultivar should the farmer choose, and why, considering the specific environmental challenge?
Question 5
A plant breeder is working to develop a new variety of apple that is specifically resistant to apple scab, a common fungal disease. This effort is directly focused on enhancing which of the following cultivar selection criteria?