Final answer:
The correct quotation that contradicts the provided information is "Planting in winter brings the best yield." This contradicts the statements in the reference material, which outline that warmer temperatures extend the growing season and that milder winters can negatively impact plant productivity by not killing pests and failing to provide sufficient nutrients.
Step-by-step explanation:
The quotation that contradicts information in 'First Things First' is "Planting in winter brings the best yield." This statement is not consistent with what is mentioned in the reference material provided because warmer temperatures are noted to extend the growing season, while shorter, milder winters are linked to increased pest survival rates and low productivity. Plant growth is complex and impacted by various factors such as temperature, light, water, and nutrients. For instance, it was observed that plants under different light schedules showed variation in flowering, implicating light as a critical factor in plant development. Additionally, water and nutrient requirements increase with extended growing seasons, which is important for adequate plant growth and productivity.
The accuracy in plant growth patterns and the implications of temperature changes suggest that planting in winter, especially when nutrients are scarce, and conditions are not ideal, will likely not yield the best results. Therefore, Option a, suggesting that winter planting brings the best yield, contradicts the provided information indicating that warmer temperatures and the risk of infestations associated with milder winters are detrimental to plant productivity.