Indian Society of Genetics & Plant Breeding

Important

INHERITANCE STUDIES ON SOME COMPONENTS OF YIELD IN A CROSS OF TWO GOSSrPIUM HIRSUTUM VARIETIES. I. BOLL NUMBER AND BOLL WEIGHT

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IN the recent past, several notable attempts have been made to devise and utilize better
methods in cotton breeding, of which the use of selection indices was reported to
be very promising, in particular, for improving the yielding ability (Fryxell, 1956;
Manning, 1956; Miller, Williams, Robinson and Comstock, 1958). In general,
however, it appears that breeding for yield as such is often not adequately emphasized.
In cotton, the main components of total lint production are: boll number per plant
and
boll weight; boll weight, in turn, is made up of (i) the number oflocules per boll,
(ii) the number of seeds per locule, (iii) the seed index (i.e., 100 seed-weight), and
(iv) the lint index (Le., weight oflint per seed). The boiling potential and yield have
been reported to show a high, positive correlation (Stroman, 1930; Rana, 1952).
The present study was undertaken with the aim of studying the mode of inheritance
of boll number and boll weight in an intervarietal cross, H.14
X S.A. 594, and ofattempting to raise the boIling capacity ofH. 14, which variety constitutes an agronomic base
in the cotton breeding projects under way in this Division.
  

Info

Year: 1961
Volume: 21
Issue: 2
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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