Consider the following statements regarding cashew apple : (A)... | Agrigyan

Classification of irrigation water quality by CSSRI / Richards:

• Normal water has $\text{EC} \lt 1.5\text{ dS/m}$ ($\lt 2\text{ dS/m}$).
• Low salinity water has $\text{EC} \lt 0.25\text{ dS/m}$.
• Under the standard Central Soil Salinity Research Institute (CSSRI) classification:
• Good quality water: $\text{EC} \lt 2\text{ dS/m}$
• Marginally saline: $\text{EC } 2\text{--}4\text{ dS/m}$
• Saline water: $\text{EC } 5\text{--}10\text{ dS/m}$ (or $4\text{--}8\text{ dS/m}$)
• High salinity / Highly saline water: $\text{EC} \gt 10\text{ dS/m}$.

Option analysis:
(A) 'Kalpa Samrudhi' is a high-yielding hybrid variety (MYD $\times$ WCT) of coconut developed by ICAR-CPCRI, Kasaragod.

Membrane filtration in food and beverage technology:

• Statement (A) is correct: Membrane filtration is a physical separation process that separates suspended solids, colloids, or macromolecules from liquid streams.
• Statement (B) is correct: It employs a semi-permeable porous medium or synthetic polymer/ceramic membrane.
• Statement (C) is correct: Microfiltration and ultrafiltration are widely employed for cold clarification of fruit juices and sterile removal of yeasts and bacteria without thermal degradation.
• Statement (D) is incorrect: Membrane filtration is very commonly used in industrial fruit juice clarification, wine stabilization, and cold sterilization of draft beer.