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Phylloxera, grafting, and rootstock genetics

6 min 06 secN08After Level 3 Lesson 7

Background material

Background chapters

Each chapter is a separate, substantial reading page with several topic sections, practical examples, precise sensory language, and an exercise.

3 chapters · 5 sections · about 24 minutes

The line worth keeping

Resistant roots solved a biological crisis; sand and isolation preserved particular places through different mechanisms.