Gossypols confer a good degree of resistance to bollworm and tobacco budworm. Most of the commercially grown cotton
varieties have normal gossypol glanding. The objective of the study was to determine the inheritance of the glanding trait
with both of the high glanded and glandless genotypes into the genetic background of normally glanded genotype. The
information of the inheritance pattern for gossypol glands is very important for breeding high foliage glanding cotton
genotypes. For this purpose two cross combinations were made involving a common normal glanding parent (HRVO-1)
along with two other parents i.e; high glanding (HG-142) and zero glanding or glandless (Acala 63-74). The non-significant
chi square values in F2 for these two crosses showed incomplete dominance for the glanding trait, which was further
confirmed by the values of BC2 of both the crosses. Previous studies conducted on the genetics of gossypols were based on
visual observations. The gossypol quantification reported herein is more reliable and can be judged more accurately to that of
the previous findings; which could not differentiate between the segregated classes in F2 of high glanding and intermediate
high glanding in a cross of normal glanding × high glanding and glandless and intermediate glandless in a cross of normal
glanding × glandless
Nausherwan Nobel Nawab, Asif Ali Khan, Iftikhar Ahmad Khan. (2015) Heredity Of Gossypol Glands On The Boll Surface In Gossypium Hirsutum L., , Volume-52, Issue-2.
