Troubleshooting Gram Growth Quiz Quiz

Identify common issues and solve problems in gram crop (chickpea) management to optimize yield and plant health. Assess your ability to recognize symptoms and select correct interventions.

1. Identifying Nutrient Deficiency in Gram Crops

   A farmer observes yellowing of the lower leaves and stunted growth in their gram crop. What is the most likely nutrient deficiency?

   1. Nitrogen
   2. Calcium
   3. Potassium
   4. Zinc

   Explanation: Nitrogen deficiency typically causes yellowing of lower leaves and poor growth. Potassium deficiency usually causes scorching at leaf edges, calcium issues lead to poor root development, and zinc deficiency often shows as small leaves or interveinal chlorosis but not mainly on lower leaves.

2. Water Management for Gram Seedlings

   After a heavy irrigation, gram seedlings begin wilting despite moist soil. Which is the most probable reason?

   1. Sunburn
   2. Underwatering
   3. Waterlogging
   4. Micronutrient toxicity

   Explanation: Gram plants are sensitive to excess water, so waterlogging can cause roots to suffocate and seedlings to wilt. Underwatering causes wilting in dry soil. Micronutrient toxicity is uncommon from irrigation, and sunburn would not correlate with moist soils post-irrigation.

3. Pest Identification: Wilting and Holes in Gram Leaves

   Several gram plants have wilted, and you notice small holes in the leaves. What is the most likely cause?

   1. Nutrient deficiency
   2. Pod borer infestation
   3. Fungal infection
   4. Herbicide drift

   Explanation: Pod borers feed on leaves and pods, leading to holes and can cause wilting if damage is severe. Fungal infections can cause wilting but usually do not create holes. Nutrient deficiencies rarely cause holes or sudden wilting. Herbicide drift may cause leaf scorch but not holes.

4. Weed Management in Gram Fields

   A dense weed population is competing with young gram plants. Which method is most effective for control during early crop growth?

   1. Flood irrigation
   2. Excess fertilizer use
   3. Late hand weeding
   4. Pre-emergence herbicide application

   Explanation: Applying a pre-emergence herbicide controls weeds before they emerge and reduces competition early. Late hand weeding allows weeds to compete in critical growth stages. Flood irrigation is not recommended for gram and does not specifically target weeds. Excess fertilizer use can favor weeds.

5. Disease Recognition: Yellowing and Drying of Gram Plants

   Gram plants are turning yellow and drying quickly from the base upwards, and roots show dark discoloration. Which disease is most likely responsible?

   1. Powdery mildew
   2. Leaf spot
   3. Fusarium wilt
   4. Root knot nematode

   Explanation: Fusarium wilt causes yellowing, drying from the base, and dark roots in gram crops. Powdery mildew causes white powdery spots. Leaf spot affects leaves, not roots. Root knot nematodes cause galls on roots but not extensive yellowing and drying from base upwards.