Abstract:
Seed germination is the most important aspect for successful seedling production of
Papaya. The present study was carried out to explore the effect of seed priming with
growing media on improvement of seed germination and seedling growth of Papaya
during the period from October to December 2021. The experimental treatments
included three seed priming treatments: T
0
= GA
3
(100 ppm) and T
2
= KNO
3
= Control (no seed priming treatments), T
1
(1%) and four growing media viz., M
1
= Soil +
Vermicompost (1:1), M
2
= Soil + Cowdung (1:1), M
3
= Soil + Cocopeat +
Vermicompost (1:1:1) and M
4
= Soil + Cocopeat + Cowdung (1:1:1). The treatments
showed significant effect on different parameters such as, germination percentage,
days to germination, survival percentage, chlorophyll content, Seed vigour index,
shoot and root length. GA
3
treated seedling performed better than non-GA
3
treated
seedlings. Among the growing media, M
3
showed the best for seed germination and
other growth attributes compared to other growing media. In terms of interaction
effects, T
1
M
3
showed the highest performance for germination percentage (84.33%),
survival percentage (91.0), chlorophyll content (44.267). T
1
M
3
also showed the highest
seed vigour index and shoot and root growth. Therefore, the combination of GA
3
and
growing media Soil + Cocopeat + Vermicompost (1:1:1) was found most suitable for
seed germination and seedling growth of papaya.
Description:
A Thesis
Submitted to Department of Entomology,
Faculty of Agriculture.
Sher-e-Bangla Agricultural University,
Dhaka-
In partial fulfillment of the requirements for the degree of
MASTERS OF SCIENCE (MS)
IN
DEPARTMENT OF HORTICULTURE
