Seed dormancy is one of the major problems in agricultural studies,
especially for medical plants. Anise (Pimpinella
anisum L.) is an important medical plant with
dormant seed and it is established and distributed only in its natural
habitats. In order to evaluate the effects of some pretreatment factors on primary
growth and germination characteristics of Anise, an experiment was conducted as
Factorial layout within completely randomized design with four
replications. Pre-chilling treatments were 0,
15, 30 and 45 days treatments and hormone treatments were GA3
(Gibberellic Acid), BA (Benzyladenine), KI (Kinetin), GA3+BA, GA3+KI,
BA+KI, GA3+BA+KI, KNO3, H2SO4 and
distilled water as a control treatment. Prechilling
treatment effects on coleoptile and radicle length, seedling length,
germination percentage, mean time for germination, germination rate and seed
vigor index were meaningful. Different hormone treatments had significant
influence on coleoptile and radicle length, seedling length, germination
percentage, mean time germination, germination rate and seed vigor index. The
highest germination percentage and germination rate was related to usage of
BA+KI. The higher values for radicle length and uniformity of seed germination
were achieved in application of BA and KI, respectively. Moreover, application
of GA3+BA+KI had obtained the highest seed vigor index. It seems that application of endogenous GA3+KI
and BA+KI concentration, which is provided mostly by chilling treatment, is the
most effective factor for breaking the seed dormancy. On the basis of the results,
usage of 45 days moist prechilling accompanied with application of GA3+KI
and BA+KI in Esfahan cultivar was appropriate.
Primary Language | English |
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Subjects | Agricultural Engineering |
Journal Section | Article |
Authors | |
Publication Date | June 26, 2019 |
Submission Date | April 18, 2019 |
Acceptance Date | June 19, 2019 |
Published in Issue | Year 2019 |
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.