The statement "There is no translocation at low temperature" was proposed by

In what form is carbohydrate usually translocated as a nutrient in plants?

Which theory explains the translocation of organic solutes over long distances in plants?

Assertion : Long distance flow of photoassimilates in plants occurs through sieve tubes.
Reason : Mature sieve tubes have parietal cytoplasm and perforated sieve plates.

The translocation of organic solutes in sieve tube members is supported by

Gradient pressure was given as a possible mechanism of translocation of food by