Dogridge is used as a rootstock for…

✅Explanation:
Dogridge is a popular rootstock variety for grapes, particularly for wine grapes. It is known for its vigor, drought tolerance, and resistance to phylloxera, a devastating pest that attacks grapevine roots. Dogridge is also used for table grape varieties to improve their growth and yield.

• Why Other Options Are Incorrect:
b) Guava: Guava is typically propagated through seeds or cuttings,.
c) Sapota: Sapota is also propagated through seeds or vegetative methods like air layering.
d) Mango: Mango rootstocks are typically selected from mango varieties themselves, like Kensington Pride or Turpentine.

🛑 Additional Information:::

•  Dogridge Rootstock in Grapes:
Popular in: Maharashtra, Andhra Pradesh, and Northern Karnataka.
Helps mitigate: Salinity, drought, and nematode problems in the soil.
Provides: Excellent nutritional support to the grafted scion.

•  Yield and Growth:
Rootstock gardens take 6-8 months longer to start yielding compared to own-rooted gardens due to grafting delay.
Own-rooted gardens yield in about 1.5 years, while rootstock gardens require additional time for grafting.

•  Costs:
Additional costs: Rs. 6,000/acre for nursery plants and grafting charges.
Includes costs like trench digging, fertilizers, training structures, drip systems, and plant protection chemicals.

•  Benefits of Rootstock Gardens:
Increased yield: 20-25% more yield per acre compared to own-rooted gardens.
Improved quality: Better produce quality, especially for European markets and raisin production.
Higher recovery: 60-70% recovery in rootstock gardens vs. 40% in own-rooted gardens for fresh grapes.
20% more recovery in raisin production.

•  Drought Resilience:
Key role: Played an important role in Maharashtra and Karnataka during drought conditions due to the failure of monsoons.