Challenge your understanding of factors affecting fruit set in chilli cultivation with this medium-difficulty horticulture quiz. Assess your knowledge about nutrient management, environmental conditions, and common practices to support successful chilli fruit setting.
Which temperature range is generally considered optimal for chilli fruit setting during flowering?
Explanation: Temperatures between 20–25°C are optimal for chilli fruit set because they support proper pollination and flower retention. Lower temperatures (10–15°C) can cause flowers to drop due to cold stress. Higher ranges (30–35°C and 35–40°C) often lead to impaired fertilization or fruit abortion as heat stress negatively impacts reproductive processes.
Which plant nutrient is especially important for facilitating the conversion of chilli flowers into healthy fruits?
Explanation: Potassium is crucial for fruit formation as it aids in enzyme activation, water regulation, and overall flower-to-fruit conversion. While iron is essential for chlorophyll production, calcium mainly supports cell wall structure, and zinc is important for hormone synthesis, none are as directly involved in fruit setting as potassium.
What is a likely result of severe water stress during the flowering stage of chilli plants?
Explanation: Severe water stress at flowering often leads to higher rates of fruit drop because the plant cannot support developing fruits. While reduced plant height can happen with extended drought, it is not specific to the flowering stage. Improved fruit size and faster ripening are not typically associated with water stress at this phase.
Which biological agent is most beneficial for aiding chilli pollination in open-field cultivation?
Explanation: Bees assist in transferring pollen and boosting pollination rates in chillies, particularly in open fields. Aphids and nematodes are generally pests that can harm the plant, while most fungi are either neutral or pathogenic, not pollinators.
What is a common effect of applying excessive nitrogen fertilizer during the chilli flowering stage?
Explanation: High nitrogen levels promote lush foliage but can suppress flowering and fruit set since plants divert resources to leaf growth. It does not accelerate fruit ripening, improve roots directly during flowering, or necessarily enhance pest resistance.