Explore key aspects of coriander cultivation, including soil needs, sowing times, common pests, and harvesting. This quiz covers essential horticultural practices for optimal coriander growth.
Which type of soil is best suited for growing coriander plants commercially?
Explanation: Well-drained loamy soil with neutral pH supports coriander's healthy root development and reduces risk of waterlogging. Heavy clay retains water and may cause rot. Sandy soil drains too quickly and is usually acidic, which coriander dislikes. Rocky, infertile soil lacks nutrients needed for growth.
In India's major coriander-producing regions, which is the preferred sowing period for coriander to maximize yield?
Explanation: Sowing coriander in October to November aligns with cooler and drier weather, favoring better germination and growth. March-April is usually too hot in most regions. June-July coincides with monsoon, increasing disease risk. January-February is often too late, reducing yield potential.
To enhance germination in coriander, what pre-sowing seed treatment is commonly recommended?
Explanation: Splitting coriander seeds improves water absorption, leading to better germination. Simply soaking in water may not penetrate the seed coat as effectively. Urea coating is unnecessary and may harm seeds. Exposing seeds to sunlight can reduce their viability.
Which pest most frequently damages coriander crops by feeding on leaves and causing pale patches?
Explanation: Aphids suck sap from coriander leaves, creating pale spots and weakening plants. Root knot nematodes attack roots rather than leaves. Stem borers primarily damage stems, not foliage. Cutworms attack seedlings at the base, not causing pale leaf patches.
What is the main sign that coriander plants are ready for harvesting for seed production?
Explanation: Coriander seeds are ready when the fruits become brown and dry, indicating maturity. Yellowing leaves may be due to nutrient deficiency or aging. Roots above soil are a sign of poor planting. Wilted flowers do not indicate proper seed maturity.