Table 3: Analyses of tetrads and pollen fertility in cotton primary monosomics (Mo) with reduced meiotic index.

MoDose of irradiation, (Gy)MicrosporocytesPollen fertility
Total number of microsporocytesMeiotic index*Tetrads with micronuclei, %Total number of pollen grainsFertility, %

Mo420177768.32 ± 1.106.87 ± 0.6047593.47 ± 1.13
Mo620165487.85 ± 0.802.48 ± 0.3820774.40 ± 3.03
Mo81569580.29 ± 1.512.01 ± 0.5359361.72 ± 2.00
Mo1625211076.07 ± 0.9321.56 ± 0.901855.43 ± 1.67
Mo2115212989.24 ± 0.675.87 ± 0.5138718.58 ± 1.98
Mo232076588.76 ± 1.148.37 ± 1.0013281.82 ± 3.36
Mo282085887.18 ± 1.142.10 ± 0.4945070.67 ± 2.15
Mo3420198188.54 ± 0.722.68 ± 0.3635846.23 ± 2.64
Mo3720131781.85 ± 1.060.91 ± 0.2618582.16 ± 2.81
Mo5215132689.00 ± 0.862.56 ± 0.4313572.60 ± 3.84
Mo5715268487.15 ± 0.653.95 ± 0.383250
Mo7415229589.32 ± 0.644.44 ± 0.433400
Mo8827972–178547.94 ± 1.60/95.52 ± 0.490.62 ± 0.25/0.22 ± 0.1198391.96 ± 0.87
Mo9020203–206812.32 ± 2.31–98.69 ± 0.256.90 ± 1.78–0232693.98 ± 0.49
L-4580219095.11 ± 0.461.42 ± 0.25320096.44 ± 0.33

L-458 is original parental (control) genotype; meiotic index is a percentage of normal tetrads in all sporad.