Maryam Palizdar; Reza Tavakkol Afshari; Ziba Jamzad; Mohammadreza Ardakani; Parisa Nejat Khah
Abstract
This research was carried out to evaluate the germination response of eleven Salvia species to application of Gibberellic acid (GA3) and pre-chilling treatments in the Iran Research Institute of Forests and Rangelands during 2012. Germination responses of the seeds were investigated under control treatment, ...
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This research was carried out to evaluate the germination response of eleven Salvia species to application of Gibberellic acid (GA3) and pre-chilling treatments in the Iran Research Institute of Forests and Rangelands during 2012. Germination responses of the seeds were investigated under control treatment, 2-levels of Gibberellic acid (GA3) treatments with 500 mg/L (for 24 and 48 hours) and 2-levels of pre-chilling treatments at 4°C (for 2 and 4 weeks). The germination percentage and rate, as the physiological traits of the species, were studied based on a completely randomized design with four replications. Based on the results, applying the Gibberellic acid (GA3) treatment for 24 hours increased both the germination percentages and rates as compared to control; but the treatment for 48 hours was insignificantly changed the two mentioned parameters comparing to control. On the other hand, the pre-chilling treatment of seeds for 2 weeks also caused a significant increase in the above parameters as compared to the control treatment; while they were insignificantly different from the control treatment by the use of pre-chilling treatment for 4 weeks.
Fateme Agah; Mohammad Ali Esmaeili; Mohammad Farzam; Rahmat Abasi
Abstract
Two separate experiments was arranged in a randomized complete design in 4 replicates in order to evaluate agronomy aspects of cultivation and aim of evaluation effective treatments in breaking dormancy of native and valuable medicinal plant, Caper seeds (Mazdavand ecotype) and also to evaluate the best ...
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Two separate experiments was arranged in a randomized complete design in 4 replicates in order to evaluate agronomy aspects of cultivation and aim of evaluation effective treatments in breaking dormancy of native and valuable medicinal plant, Caper seeds (Mazdavand ecotype) and also to evaluate the best seed bed medium for germination of Caper seeds along with sustainable agricultural systems. Treatments in breaking dormancy test included control (distilled water), pre chilling (for 2 and 3 months), GA3 (250 and 500 ppm for 12 hours), KNO3 (0.2 and 0.5% for 12 hours), scarification with sandpaper (85%), seed coat removal, soaking in NaClO 0.5% for 5 minutes, scarification+250 ppm GA3, scarification+0.2% KNO3, scarification+250ppm GA3+0.2%KNO3. Treatments in evaluation the best seed bed medium experiment included control (soil of habitat), manure fertilizer, vermicompost and bio-fertilizer (phosphonitrokara). According to results of first examination, pre-chilling for 2 and 3 months were the best treatments for breaking dormancy (with 85% germination and 3.5 seeds per day germination rate). Also, results of evaluation the seed bed medium, showed that vermicompost had the highest germination percentage, highest number of leaves and the most seedling weight vigor index. Vermicompost and manure fertilizer had the highest leaf length, shoot length and seedling dry weight. Manure fertilizer and vermicompost, while creating sustainable agricultural conditions, increased the growth and improved morphological characteristics of the Caper medicinal plant seedlings.
