Induced mutagenesis in wheat variety PBW-154
Raman Dev Sharma1,
MN Mishra1, Arun
Kumar2
1Department
of Plant Breeding and Genetics, Raja Balwant Singh College, Bichpuri,
Agra-283105
2Directorate of
Planning and Monitoring, Bihar Agriculture University, Sabour, Bihar
Received:
16 August 2015 Revised Accepted: 28 September
2015
ABSTRACT
Induced mutagenesis in
wheat varieties PBW-154 was studied during the Rabi season of 2011-12 at the Agriculture Research Farm, R.B.S.
College, Bichpuri, Agra. The seed of wheat variety PBW-154 was subjected to
different mutagens. There were seven treatments related with temperature. The
treatments of 500C and 150C enhanced the germination
percentage up to 100 and 99 percentage respectively as compared to 93
percentage in control and 0.3 percentage hydroxyl amine treatments. More or
less similar effect of the treatments on other parameters viz. root length,
shoot length & seedling vigour index was observed. Higher dose of hydroxyl
amine was observed to be undesirable.The parameters of variability such as range, mean and CV revealed highest (45-75)
range for grains per spike and 100 grain weight (3.31-4.62g)), for plant height the maximum values of 117.86
cm was observed. The CV estimate was
high (15.04 percent) for tillers per plant, where as it was lowest (2.77) for
days to flowering. The estimates of GCV and PCV were highest for grain per
spike and lowest GCV estimates for 100 seed weight. Macro mutations of economic
and academic interest were also recovered in present study the recovery of bold
shiny seeded mutant by the use of 15ºC temperature and high grain yielder
mutants by the use of 15ºC temperature
note-worthy.
Key Words: Genetic advance, Heritability, Mutagenesis, PBW 154, Variability, Wheat