question_answer 77)

  Define the term 'stress' for plants. Discuss briefly the two types of stress encountered, by plants.

Answer:

                    Stress for plants can be defined as any external factor that negatively influences plant growth, productivity, reproductive capacity or survival. This includes a wide range of factors which can be broadly divided into abiotic or environmental stress factors like salinity extreme temperatures, drought, etc., and biotic or biological stress factors.