Explore key strategies and facts about managing cumin root rot and improving crop health. Sharpen your understanding of disease prevention and treatment tailored specifically for cumin cultivation.
Which of the following is a common early symptom of root rot in cumin plants?
Explanation: Wilting and yellowing of lower leaves typically signal early root rot as roots fail to absorb water. Sudden flower drop is less common at the onset of root rot. Purple spots on pods and stunted leaf hairs are not characteristic symptoms for root rot in cumin.
What is the best soil management practice to reduce root rot risk in cumin fields?
Explanation: Raised beds help improve drainage and reduce water stagnation, which limits root rot development. Heavy, frequent irrigation and soil compaction promote excess moisture, increasing disease risk. High-nitrogen fertilizers do not directly address soil moisture or pathogen control.
Which crop is most suitable to rotate with cumin to help break the root rot disease cycle?
Explanation: Rotating with cereal crops like wheat interrupts the life cycle of cumin root rot pathogens. Continuous cumin planting or using related Apiaceae crops maintains the disease in soil. Tobacco is unrelated but not specifically researched for root rot management benefits in cumin.
Which bioagent is commonly recommended for suppressing root rot pathogens in cumin?
Explanation: Trichoderma species are widely used as bioagents against soil-borne pathogens causing root rot. Rhizobium bacteria are primarily for legume nitrogen fixation, while Azolla and Nostoc are not standard agents for root rot in cumin.
At which stage is chemical fungicide most effective for cumin root rot management?
Explanation: Applying fungicides as a seed treatment before sowing protects developing seedlings when they are most vulnerable. Spraying after pod development, during harvest, or at maturity is late for root infection prevention and generally ineffective for root rot control.