Effect of pre-sowing treatments and sowing time on germination and growth of Acacia modesta
Loading...
Date
2021-10
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu
Abstract
An investigation entitled “Effect of pre-sowingtreatments and sowing time on germination and growth of Acacia modesta” was carried out in the Division of Agroforestry, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Chatha, during the year 2021 to improve germination and obtain better quality seedling of Acacia modesta. The experiment was laid out in Factorial CRD design.The study consisted of nine pre-sowing treatments (soaking in cold water for 48 hours, soaking in boiling water for two minutes, acid scarification with conc. H2SO4 for 5 minutes, acid scarification with conc. H2SO4 for 10 minutes, acid scarification with conc. H2SO4 for 15 minutes, cow dung slurry for one month, cow dung slurry for one and half month, nicking and control) and two sowing dates (08th March and 24th March, 2021). All parameters except germination percentage were analyzed using CRD designtreating each interaction as single treatment.Amongstpre-sowing treatments, (nicking) had highest germination percentage (65.83%)which was statistically superior to the remaining pre-sowing seed treatments.There was no germination intwo pre-sowing seed treatments i.e. cow dung slurry for one monthand cow dung slurry for one and half month. Sowing date of 24thMarch resulted in significantly higher germination (41.85%) compared to the seed sown on 08th March (30.93%).The interaction effect of pre-sowing treatments x sowing dates on germination was also significant. Nicking x sowing date of 24th March recorded highest germination percentage (54.72%) which was statistically at par with interactions of soaking the seeds in cold water for 48 hours x 08th March and nicking x 08th March but statistically superior to all the remaining 15 treatments.There were six interactions with no germination.In most of the growth parameters (seedling height, number of leaves, length of primary roots, dry shoot weight, total seedling fresh weight, total seedling dry weight, root: shoot ratio, coefficient of velocity of germination and mean germination time), the effect of treatments was significant and the treatment of nicking and sowing date of 24thMarch showed highest value. However, the values of these parameters in pre-said treatmentwere statistically at par with respective values in various other treatments. Notwithstanding this germination rate index in this treatment (nicking and sowing of 24th March) was statistically superior to all the remainingtreatments. The value of sturdiness quotient was also significantly influenced by the treatments. Nicking and sowing of 24th March had the lowest sturdiness quotient which is also desirable.The effects of treatments on remaining parameters – collar diameter, number of secondary roots, fresh shoot weight, fresh root weight, dry root weight and seedling quality index were non-significant.Over all better growth in (nicking and sowing of 24th March)could be due to the fact that nicking makes it easier for entry of water and air into embryo of seeds which results a faster germination and consequently the growth. The optimum temperature during later part ofMarch (March 24th) might have also accelerated germination compared to that of 8th March. Based on the study it can be concluded that nicking followed by sowing on 24th March be carried out to obtain higher germination and better quality of seedlings.
Description
Keywords
Citation
Preferred for your work_singh sourav.2021. Effect of Pre-sowing treatments and sowing time on germination and growth of Acacia modesta. Thesis submitted to SKUAST-JAMMU