Moth Bean: Climate-Resilient Pulse Crop

Geography

Context

ICAR–Central Arid Zone Research Institute (CAZRI), Jodhpur, has developed new-generation moth bean varieties designed to withstand highly variable weather conditions, including prolonged drought and excessive rainfall.

About Moth Bean

  1. Scientific name: Vigna aconitifolia
  2. Also known as: Matki or Dew Bean.
  3. It is a creeping annual herbaceous legume belonging to the Fabaceae family.
  4. It is considered one of India’s hardiest pulse crops, particularly suited to dryland farming.
  5. Its deep-penetrating taproot helps the plant access moisture from deeper soil layers, enabling it to survive drought conditions.

Climatic and Soil Requirements

Factor Requirement
Temperature Best suited to 24–32°C; can tolerate temperatures up to about 45°C
Rainfall Ideal: 500–750 mm; can survive with around 200–300 mm
Soil Prefers well-drained sandy loam soils
pH Tolerates a wide range of about 3.5–10
Salinity Can tolerate slight salinity

Major Growing Regions

  • Mainly cultivated in the arid and semi-arid regions of:
    • Rajasthan
    • Maharashtra
    • Gujarat
    • Haryana

Importance

  1. Food: Provides protein-rich pulses such as matki dal.
  2. Livestock: Provides nutritious fodder.
  3. Soil health: As a legume, it contributes to soil fertility through nitrogen fixation and can be used as green manure.
  4. Climate resilience: Its drought tolerance makes it suitable for dryland and climate-stressed agriculture.

FAQs

Q1. What is moth bean?
Ans: Moth bean (Vigna aconitifolia) is a drought-tolerant pulse crop belonging to the Fabaceae family.

Q2. Which states are major producers of moth bean?
Ans: It is mainly cultivated in Rajasthan, Maharashtra, Gujarat and Haryana.

Q3. Why is moth bean considered climate-resilient?
Ans: Its deep root system and high heat and drought tolerance allow it to grow under low-rainfall and high-temperature conditions.

Q4. What are the uses of moth bean?
Ans: It is used as a food pulse, livestock fodder and green manure, contributing to both nutrition and soil fertility.