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Cotton Genomics and Genetics
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the results showed that seven hybrids recorded higher
mean boll weight than DCH 32 (5.00), eight hybrids
showed high performance with respect to mean boll
weight as compared to RAHB 87 (4.60) and two
hybrids had higher mean boll weight than MRC 6918
(4.40).
1.3 Reproductive points on sympodia
Among all hybrids, Reproductive points on sympodia
values ranged from 7.33 [DH 25-22 x DB 533 and DH
25-3 x DB 533] to 4.33 [DH 21-29 x DB 532 and
RAHB 87]. Thirty four hybrids had higher
reproductive points on sympodia than MRC 6918
(5.17) and DCH 32 (5.17) and twelve hybrids showed
higher reproductive points on sympodia than RAHB
87 (4.33).
1.3.1 Sympodial length at 50 per cent plant height (cm)
Sympodial length at 50 per cent plant height values
ranged from 89.50 [DH 102-23 x DB 534] to 50.00
[RAHB 87] and the results showed that thirty three
hybrids recorded high performance with respect to
sympodial length at 50 per cent plant height as
compared to DCH 32 (62.33), four hybrids recorded
higher sympodial length at 50 per cent plant height
than MRC 6918 (60.67) and twelve hybrids had high
performance with respect to sympodial length at 50
per cent plant height as compared to RAHB 87
(50.00).
1.3.2 Inter branch distance (cm)
Among 52 hybrids, inter branch distance values
ranged from 37.00 [DH 102-23 x DB 534] to 20.67
[DH 11-8 x DB 533] and the results showed that
fifteen hybrids recorded high performance with
respect to inter branch distance as compared to DCH
32 (30.33), eight hybrids recorded higher inter branch
distance than MRC 6918 (29.33) and six hybrids
showed higher values of inter branch distance than
RAHB 87 (27.67).
1.3.3 Seed index (g)
Seed index values of 52 YHB hybrids ranged from
15.00 [DH 28-36 x DB 531, DH 91-1 x DB 531 and
DCH 32] to 11.00 [DH 22-76 x DB 534, DH 57-95 x
DB 533, DH 47-67 x DB 532, ZCH 8 x DB 533, DH
11-8 x DB 531, 179-20 x DB 532, DH 44-14 x DB
534, DH 25-3 x DB 533 and RAHB 87]. Two hybrids
had equal performance of seed index to the check
DCH 32 (15.00), twenty one hybrids exhibited high
performance with respect to seed index than MRC
6918 (12.00) and eight hybrids showed equal values
of seed index to the check RAHB 87 (11.00).
1.3.4 Ginning outturn (%)
Ginning outturn values of 52 best HB hybrids ranged
from 39.74 [RAHB 87] to 27.76 [DH 39-84 x DB
531]. Twenty one hybrids exhibited high performance
with respect to ginning outturn as compared to DCH
32 (34.38) and fourteen hybrids had higher values of
ginning outturn than MRC 6918 (32.44).
1.3.5 Lint index (g)
Lint index values of all best HB hybrids ranged from
5.16 [DH 28-36 x DB 531 and DCH 32] to 3.50
[177-24 x DB 531] and the results exhibited that
eighteen hybrids exhibited higher lint index than
RAHB 87 (4.37) and twenty one hybrids had higher
values of lint index than MRC 6918 (3.89).
1.3.6 2.5% span length (mm)
2.5% span length values of all hybrids ranged from
40.40 [177-24 x DB 531] to 32.40 [DH 8-7 x DB 531].
Six hybrids showed high performance with respect to
2.5% span length as compared to DCH 32 (39.60),
twenty nine hybrids exhibited higher 2.5% span length
than RAHB 87 (35.40) and four hybrids had higher
values of 2.5% span length than MRC 6918 ( 34.90).
1.3.7 Fiber uniformity ratio (%)
Among 52 hybrids, fiber uniformity ratio values
ranged from 49.00 [DH 11-8 x DB 533] to 43.00 [DH
28-36 x DB 531, DH 53-2 x DB 534, DH 25-22 x DB
533, DH 18-19 x DB 533 and ZCH 8 x DB 534]. Five
hybrids showed higher fiber uniformity ratio than two
checks MRC 6918 (46.00) and RAHB 87 (46.00) and
fifteen hybrids exhibited equal performance of fiber
uniformity ratio to the check DCH 32 (45.00).
1.3.8 Fiber micronaire value (
g/inch)
Fiber micronaire values ranged from 3.60 [DH 8-7 x
DB 531] to 2.50 [DH 25-22 x DB 533]. The results
showed that one hybrid DH 8-7 x DB 531 showed
highest value of micronaire than RAHB 87 (3.50) and
DCH 32 (3.50) and fourty three hybrids exhibited
Cotton Genomics and Genetics