Which one is the example of a semi-root parasite weed? (CG ADA 2020)

✅Explanation:
Striga, also known as witchweed, is a parasitic plant that attaches itself to the roots of host plants, mainly cereal crops, and extracts water and nutrients, leading to significant yield losses. It is a major problem in many parts of Africa and Asia, affecting crops like sorghum, maize, rice, and sugarcane.

🔴 Related terminologies:
-Holoparasites (Total Root Parasites): Completely dependent on the host plant for water, nutrients, and carbohydrates. They lack chlorophyll and cannot photosynthesize. Example: Orobanche spp. (Broomrape) affects various crops, including tomato, sunflower, and tobacco.
-Hemiparasites (Partial Root Parasites): Can photosynthesize to some extent but still rely on the host for water and nutrients. Example: *Striga spp. (Witchweed)* is a major problem in cereal crops like sorghum, maize, and sugarcane.
-Holoparasites (Total Stem Parasites): Completely dependent on the host plant for all their needs. Example: Cuscuta spp. (Dodder) affects linseed, lentil, berseem, etc.
-Hemiparasites (Partial Stem Parasites): Can photosynthesize but still rely on the host for some nutrients and water. Example: Loranthus in Mango.