Improvement and breeding
S. Rashvand; A.A. Jafari; A.R. Fakhr-Vaezi
Abstract
Lallemantia Fisch. et Mey. is one of the most important medicinal plant genera in Iran, which is highly demanded by Iranian people due to its health benefits. This study was aimed at regenerating and domesticating some wild ecotypes of Lallemantia spp. species. The seeds of nine ecotypes from L. royleana ...
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Lallemantia Fisch. et Mey. is one of the most important medicinal plant genera in Iran, which is highly demanded by Iranian people due to its health benefits. This study was aimed at regenerating and domesticating some wild ecotypes of Lallemantia spp. species. The seeds of nine ecotypes from L. royleana (Benth.) Benth., five ecotypes from L. iberica (M.Bieb.) Fisch. & C.A. Mey., and five ecotypes from L. peltata (L.) Fisch. & C.A.Mey. were prepared from the Natural Resources Gene Bank, Iran and planted in a randomized complete block design with three replications in the research farm of Qazvin Agricultural and Natural Resources Research and Education Center, Iran in 2018. The studied traits included total plant dry weight, seed yield, plant height, plant canopy diameter, and phenological traits including days to flowering and days to seed ripening. The ANOVA between the species was performed first, then the nested ANOVA between the ecotypes within each species. The means comparison of different traits among the ecotypes within each species was done using the Tukey method. In this study, the ecotypes were divided into three separate clusters based on the cluster analysis and biplot diagram. The cluster1 ecotypes belonging to L. iberica had higher seed yield than the other two ones. In L. iberica, the highest seed weight belonged to the ecotype ‘Azadshahr’ (4.5 g plant-1) with an estimated yield of 375 kg ha-1. Finally, the superior class a ecotypes were identified in terms of seed yield and put in the process of seed propagation and certification.
M.A. Alizadeh; A.A. Jafari; S.E. Sayedian; M. Izadpanah; M. Amirkhani; M.R. Pahlevani; L. Fallah-Hoseini; M. Ramezani Yeganeh
Abstract
In order to evaluation of morphological and phenological traits in 68 accessions of five chamomile species including: Anthemis altissima L., A. haussknechtii Boiss. & Reut., A. pseudocotula Boiss., A. tinctoria L. and A. triumfettii (L.) All., an experiment was ...
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In order to evaluation of morphological and phenological traits in 68 accessions of five chamomile species including: Anthemis altissima L., A. haussknechtii Boiss. & Reut., A. pseudocotula Boiss., A. tinctoria L. and A. triumfettii (L.) All., an experiment was conducted using a randomized complete block design (RCBD) with three replications in the Alborz research station in Karaj, during 2011-2012. Data were collected for the length and width of canopy, plant height, number of flowers, shoot fresh and dry weight, growth degree-days (GDD), essential oil percentage, and essential oil yield. The average values of growth traits and shoot yield recorded for A. pseudocotula were higher as compared with other species. In addition, this species was an earlier growing species due to the lower values of growth degree-days (GDD) in flowering and maturity stages. The essential oil yield of A. altissima (33 g per plant) and) A. triumfettii (59 g per plant) was more than that recorded for the three other species. The shoot yield of Anthemis tinctoria in Ardebil and Khoy1 populations was higher as compared with other populations. The shoot yield of A. triumfettii in Semnan1 and Semnan 2 populations and the essential oil yield of A. triumfettii in Semnan 2 and Shahrood populations were higher than those recorded for other populations. The Loshan and Salmas populations were earlier growing species. The highest shoot yield and essential oil yield were recorded for A.haussknechtii in the Golastan population. For A. pseudocotula, the highest shoot yield, and essential oil yield were obtained in the Golastan 2 population, and the Golastan1, Zanjan1, and Zanjan2 populations were early growing species. There were no significant differences among the populations of A. altissima. In all species, a direct relationship was found between shoot and essential oil yield and early growth, so that the early growing populations had higher shoot and essential oil yield and this feature could be used in the production of drought-resistant varieties under rainfed conditions.
M.A. Alizadeh; S. Yaryab; A.A. Jafari; P. Salehi
Abstract
This research was aimed to investigate morphological and phenological traits of 12 populations of pseudo chamomile (Tripleurospermum sevasnense (Manden.) Pobed.). The study was carried out in a randomized complete block design (RCBD) with three replications in the Alborz research station, Karaj, Iran, ...
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This research was aimed to investigate morphological and phenological traits of 12 populations of pseudo chamomile (Tripleurospermum sevasnense (Manden.) Pobed.). The study was carried out in a randomized complete block design (RCBD) with three replications in the Alborz research station, Karaj, Iran, during 2011-2013. The study traits included longitudinal and transverse diameter of canopy cover, canopy cover area, plant height, number of flowers, shoot fresh and dry weight, growing degree-days (GDD), essential oil percentage and essential oil yield. Growing degree-days was calculated for flowering and harvesting time. Analysis variance of data showed that there were significant differences among populations (P<0.05). According to the results of mean comparisons, maximum shoot fresh weight (290.4 g/plant), shoot dry weight (99.8 g/plant) and essential oil yield (252.2 mg/plant) were recorded forAredbil2. Therefore, this population was superior to the others. The results of growing degree-days at flowering and maturity stages showed that two populations (Gazvin2 and Tehran1) had lower values of growing degree-days. In the cluster analysis, populations were divided into three groups. The populations of cluster 1, including Karaj, Qazvin, and Khorramabad, were superior to the other two groups in terms of shoot yield and morphological traits. Our results clearly showed that after further tests and mass seed production in diffrent climate regions of the country, the supriore popultions of Karaj, Ghazvin1, and Khorramabad could be introduced as new cultivars.
