Abstract
Differentiation and structure of phloem are described in adventitious root, bulbous stem, foliage and storage leaf of the bulb ofAllium sativum. Differentiation of protophloem occurs very close to the root apex. At maturity sieve elements appear enucleate. In the root, each of the tetrarch group of phloem has three to six metaphloem sieve elements. Sieve element with persistent nucleus occurs very rarely. Sieve elements of dormant clove show dormancy callose which disappears soon after the germination of the clove.
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