Challenge your knowledge about common diseases affecting gram crops, their symptoms, management, and prevention. This medium-difficulty quiz is perfect for students, farmers, and enthusiasts interested in sustainable gram cultivation.
A farmer notices yellow patches with mosaic patterns on gram leaves, which gradually spread and cause stunted growth. Which disease is most likely affecting the crop?
Explanation: Yellow Mosaic Virus causes characteristic yellow mosaic patterns and stunted growth in gram plants. Fusarium Wilt causes wilting and browning but not mosaic patterns. Powdery Mildew is characterized by white powdery patches, and Collar Rot leads to browning near the stem base.
Leaves of a gram crop suddenly turn yellow, wilt, and dry up from the base upward during pod formation. What is the most probable cause?
Explanation: Fusarium Wilt typically causes lower leaves to yellow and wilt upward, often during pod formation. Root Knot Nematode affects roots causing galls but not rapid above-ground wilting. Rust produces orange-brown pustules, while Bacterial Blight usually presents as water-soaked spots.
A gram field shows white, flour-like spots on leaves and stems, which can coalesce and cause the tissues to dry out. What disease does this indicate?
Explanation: Powdery Mildew appears as white, powdery growth on leaves and stems. Downy Mildew produces yellowish patches with downy underside, Ascochyta Blight causes dark spots with margins, and Anthracnose produces dark sunken lesions.
A gram crop shows young seedlings collapsing near the soil surface, with brown lesions at the stem base. Which management practice can help reduce this disease?
Explanation: Collar Rot is favored by waterlogged conditions; avoiding such conditions helps prevent it. Excess nitrogen does not address the fungal issue, deep sowing may worsen susceptibility, and very wide spacing is not specifically effective against Collar Rot.
During wet and humid weather, gram pods and stems develop circular brown spots with dark margins and a grayish center. Which disease is most likely?
Explanation: Ascochyta Blight causes spots with a characteristic gray center and dark border, especially during humidity. Alternaria Leaf Spot has concentric rings, Rust shows pustules, and Root Rot primarily affects roots, not pods or stems.