A researcher studying secondary growth in a dicot stem observes a peculiar pattern. The vascular cambium appears to be producing more xylem towards the center than phloem towards the periphery. Which of the following factors is LEAST likely to contribute to this unusual observation?

Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R :

Assertion A : During winter, the cambium is less active and forms fewer xylary elements.

Reason R : Late wood has narrow vessels.

In the light of the above statements, choose the correct answer from the options given below :

The vascular cambial ring of dicot stem is

Which part of the wood is responsible for providing mechanical support and resistance to decay in older trees?

Fewer xylary elements that have narrow vessel are found in

Cambium activity is

Tissues involved in secondary growth is/are

I. intercalary stem

II. vascular cambium

III. cork cambium

Select the correct options from below

Bark includes

I. phellogen

II. phellem

III. secondary phloem

IV. secondary xylem

Select the correct combination

Highly durable and commercial valuable wood of the following is?

Which of the statements given below is not true about formation of Annual Rings in trees?

Estimation of the age of the tree is done by