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Identification of Cotton Haploids by Stomatal Chloroplast‐count Technique 1
Author(s) -
Chaudhari H. K.,
Barrow J. R.
Publication year - 1975
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1975.0011183x001500060006x
Subject(s) - biology , ploidy , guard cell , gossypium barbadense , botany , cotyledon , chloroplast , sepal , malvaceae , pollen , gossypium hirsutum , stamen , gene , genetics
Chloroplast counts were made from the stomatal guard cells in haploid (n = 2x = 26) and in natural tetraploid (2n = 4x = 52) plants of Gossypium hirsutum L. and G. barbadense L. The mean chloroplast number was 10.46 ± 2.18 for haploids and 21.00 ± 3.31 for tetraploids. The means from haploid plants did not overlap with the means from tetraploid plants in 280 plants evaluated. Cotton plants can be classified much easier and quicker from the cotyledon stage to maturity as haploids or tetraploids and as accurately as by chromosome counts.