Question

In a hollow stem, what is most affected?
A. Conduction of food
B. Conduction of water
C. Storage of food
D. None of the above

Answer 1

Hint: Hollow stem is a physiological disease that affects the majority of the brassica plants, decreases marketability, and also causes secondary pathogens to rot. Broccoli and collars can develop a disease caused by soft red bacteria with similar symptoms known as "hollow stalk."

Complete answer: Since this defect occurs in growing time the hollow stem will not increase in size after harvest. This defect is called a consistency fault. The surface around the hollow region is more vulnerable to infection and can become waterproof, discoloured, or disturbed. Cauliflower, broccoli is the hollow stem. Owing to an irregular growth rate and an extended cavity, the dense and fleshy middle of the stem cell divides. The cavity will stretch to either end of the plant to create an outdoor opening.
Hollow stem is distinguished by the decay of the pit, leaving vacant the central space that is filled by the pit otherwise. The breakdown is caused by the rapid lengthening and the radial expansion of the rising stem. Organic nutrient and water translocation is the feature and thus pith disintegration is not impaired by the respective functions of phloem and xylem. The hollow stem consists of water and the food store is most affected by the hollow stem. Pith is used to store and distribute nutrients.
Therefore, choice C- Storage of food is the correct answer.

Note: Since this defect occurs in growing time the hollow stem will not increase in size after harvest. This defect is called a consistency fault. The surface around the hollow region is more vulnerable to infection and can become waterproof, discoloured, or disturbed.