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Medicinal plant science
Maryam Nasrollahi Pari; MOHAMMAD HOSSEIN FOTOKIAN
Abstract
Mutation induction is an important method of generating genetic diversity. Purslane (Portulaca oleracea L.) has unique medicinal uses due to its high content of beneficial antioxidants and omega-3 fatty acids. In this study, the genetic diversity of 24 mutant lines of fourth-generation (M4) purslane ...
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Mutation induction is an important method of generating genetic diversity. Purslane (Portulaca oleracea L.) has unique medicinal uses due to its high content of beneficial antioxidants and omega-3 fatty acids. In this study, the genetic diversity of 24 mutant lines of fourth-generation (M4) purslane obtained from dimethyl sulfate treatment together with the control was investigated in a randomized complete block design with 3 replicates. The differences among the lines were significant in traits including plant height (PH), leaf length, leaf width, stem dry weight, and leaf chlorophyll in the 30-day-old plant. The principal coordinates and cluster analyses divided the line into two separate clusters. The lines in cluster 1 had a significant advantage over the lines in cluster 2 for most traits such as stem fresh weight (SFW), leaf fresh weight (LFW), and the number of capsules per plant (NOC). The number of leaves was significantly correlated with SFW, LFW, plant fresh weight (PFW), NOC and the ratio of plant dry weight to plant fresh weight. In sequential path analysis, SFW in the first order was the only trait affecting NOC, and in the second-order, LFW and PH were the most important traits that had an effect on NOC through the direct effect of SFW. L18 mutant line had a significant advantage over the control in some agronomic traits such as PH, LL and NOC, that can be used for future research, especially for cultivation, commercialization and extensive planting for uses as vegetables, oil extraction, and medicinal applications.
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Fruit Science
mansour fazeli rostampour
Abstract
In order to increase the quantitative and qualitative yield of Yaghooti grapes and transfer the technical knowledge of pruning to farmers the experiment was conducted in the Sistan region. This research was conducted as a factorial experiment based on a randomized complete block design with three replications. ...
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In order to increase the quantitative and qualitative yield of Yaghooti grapes and transfer the technical knowledge of pruning to farmers the experiment was conducted in the Sistan region. This research was conducted as a factorial experiment based on a randomized complete block design with three replications. Four levels of balance pruning intensity including; control or local custom, 60+10, 40+10, and 20+10 considered as the first factor, and four levels of green pruning intensity including; control or local custom (G1), pruning of green branches from above eight leaves on the last cluster (G2), pruning of unproductive branches + green branches from above eight leaves on the last cluster (G3) and pruning of branches without fruit from the bottom + unproductive branches + green branches from above eight leaves on the last cluster (G4) considered as the second factor. The balance pruning 20+10 increased the relative water content (RWC), bearing coefficient and soluble solids (SS). while the traits of leaf area, fruit juice acidity (FJA) and the number of days to maturity (NDM) decreased. In addition, pruning of G4 increased the RWC and SS, but decreased the traits of leaf area, FJA and the NDM, respectively. Interaction of balance pruning 20+10 and G4 led to increase the bud break, cluster coloring and yield, respectively. In general, the results showed that balance pruning 20+10 along with pruning of G4 increased yield by 47.4% compared to the control.
