Question

4. Plants that harm their host plant_____ , ________
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Answer 1

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Impact of Parasitic plants:-

• Impact of parasitic plants Among the most harmful are members of the Orobanchaceae. Witchweeds (Striga species), for example, generally attack cereal crops, including corn (maize), sorghum, millet, and rice, in Africa.

• All parasitic plants have modified roots, called haustoria, which penetrate the host plant, connecting them to the conductive system – either the xylem, the phloem, or both.This provides them with the ability to extract water and nutrients from the host.

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