Which condition was emphasized as important in traditional pre-1990s rose production?

Which condition was emphasized as important in traditional pre-1990s rose production?

• A. High humidity
• B. Waterlogged soil
• C. Shading
• D. Good drainage system

Answer: (D)

Roses need moisture, but their roots must also stay well Oxygenated. In traditional production before the 1990s, keeping the soil free from waterlogging was seen as the foundation for healthy rose bushes. When soil drains poorly, water sits in the root zone, roots suffocate, nutrient uptake falters, and the plants become more vulnerable to diseases like root rot. A good drainage system—whether in field beds with proper grading, raised beds, or drainage tiles—lets excess water escape and prevents soggy conditions, supporting steady growth and yields even with irrigation and rainfall. High humidity and shading can influence disease pressure, but without proper drainage the root zone remains a hotspot for problems, which is why good drainage was emphasized as the key condition.

Roses need moisture, but their roots must also stay well Oxygenated. In traditional production before the 1990s, keeping the soil free from waterlogging was seen as the foundation for healthy rose bushes. When soil drains poorly, water sits in the root zone, roots suffocate, nutrient uptake falters, and the plants become more vulnerable to diseases like root rot. A good drainage system—whether in field beds with proper grading, raised beds, or drainage tiles—lets excess water escape and prevents soggy conditions, supporting steady growth and yields even with irrigation and rainfall. High humidity and shading can influence disease pressure, but without proper drainage the root zone remains a hotspot for problems, which is why good drainage was emphasized as the key condition.