Pattern of morphological and cytological variation in
relation to powdery mildew resistance In 80 germplasm
accessions of ber (Zizhyphus mauritiana Lamk.) is reported.
Metroglyph and index score analyses showed wide
morphological variation in the germplasm. Eight distinct
groups were recognized on the basis of variation in 23
morphological and fruit characters however, within group
variations were of a low order. Meiotic studies revealed
an array of forms ranging from diploid to triploid, tetra,
penta and octaploid types. Our study suggested that the
groupings based on morphological attributes have
cytological foundation and a few diploid accessions and
an octaploid genotype formed the basic source of
immunity/resistance for powdery mildew disease.
Keywords: Z. mauritiana, ber, metroglyph, meiotic behaviour, ploidy, powdery mildew resistance.
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906
T. Pradeep and N. D. Jambhale info_circle