zahra ajribzadeh; salim farzaneh; Mahmoud Shomili; Hamid Reza Balouchi; aziz Ker Mullah Chaab; Raouf Seyed Sharifi
Abstract
Objective: Considering the high consumption of cuttings in sugarcane cultivation and the rapid deterioration of cuttings, crop management methods after harvesting are necessary. The present study aimed to determine the appropriate coverage for a single sugarcane bud.Methods: This study was performed ...
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Objective: Considering the high consumption of cuttings in sugarcane cultivation and the rapid deterioration of cuttings, crop management methods after harvesting are necessary. The present study aimed to determine the appropriate coverage for a single sugarcane bud.Methods: This study was performed as a completely randomized design with three replications in 2020, to investigate the effect of four types of binders: carboxymethylcellulose (40, 60 and 80 g/l), arabic gum (50, 100 and 150 g/l), tragacanth (30, 60 and 90 g/l) and starch (45, 60 and 75 g/l) as the first test and four types of nutrients: humic acid (6, 9 and 12 g/l), filter cake (5, 10 and 15 g/kg), superabsorbent (10, 30 and 45 g/kg) and microcombi fertilizer (10, 20 and 30 g/kg) as the second experiment with control, in the greenhouse of the sugarcane research Station-Khuzestan.Results: The results showed that the effect of four types of binder on sugarcane plant characteristics such as germination rate, stalk length, stem dry weight and plant moisture content was significant and the most positive effect was observed in starch gum (60 g/l). Also, four nutrients had a significant effect on some characteristics such as germination rate, stalk length, stalk dry weight and plant moisture content.Conclusion: Due to the most positive effect of starch gum, in later studies, this glue can be used as a binder, along with other nutrients and fillers for planting lateral buds of sugarcane stalks.
maedeh fereshtian; Reza Salehi; abdolkarim kashi; Mesbah Babalar
Abstract
Objective: To investigate the physiological and biochemical effects of incompatibility between Khatooni melon (Cucumis melo GR. Inodorus accession Khatooni) scion on cucurbit rootstocks, a series of experiments was conducted in a randomized complete block design at the Horticultural Research Station ...
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Objective: To investigate the physiological and biochemical effects of incompatibility between Khatooni melon (Cucumis melo GR. Inodorus accession Khatooni) scion on cucurbit rootstocks, a series of experiments was conducted in a randomized complete block design at the Horticultural Research Station of the University of Tehran in Mohammadshahr, Karaj, in 2021.
Methodes: Seven different Cucurbit Rootstocks were applied in this research, which include: 'Rout Power', 'ES 900', 'RZ 12', 'Nongwoo 01', 'RZ6' 'Shintozwa', 'Marvel' and the seed rootstock of the melon cultivar 'Khatooni' with the scientific name (Cucumis melo GR. Inodorus accession Khatooni) was also used as a control plant in addition to the scion. Then the effects of incompatibility and compatibility on the yield of fruit weight, number of fruit and marketable yield were checked. Then biochemical activity of plant scion, such as sugar and starch content of scion leaves, leaf mineral elements (N, P, K, Ca, Mg, B) and the amount of stress proteins and enzymes super oxide dismutase, peroxidase and catalase (SOD, PO, CAT) were compared.
Results: Variance analysis revealed significant differences (p<0.01) among treatments in yield traits, stress enzyme activities, protein, and carbohydrate content. Elements such as nitrogen, potassium, calcium, and boron showed significant variation at the 5% level. The highest fruit weight, number of fruits, and marketable yield were observed with Rout Power and Shintozwa rootstocks, indicating incompatibility compared to the Marvel rootstock. Protein accumulation at the graft junction was 1.03 mg/fresh weight in incompatible Marvel rootstocks versus 0.6 mg in Shintozwa, which was more compatible. Higher antioxidant enzyme activities were found in incompatible rootstocks. Sugar and leaf starch contents were higher in Shintozwa relative to incompatible rootstocks, while leaves of compatible plants showed significantly greater levels of N, Ca, Mg, and B.
Conclusion: Rootstock incompatibility adversely affects physiological and biochemical growth traits and scion performance. The Marvel rootstock exhibited incompatibility, whereas Shintozwa demonstrated compatibility with the Khatooni melon scion. Therefore, Shintozwa is recommended as a suitable rootstock for melon grafting to ensure optimal growth and yield
Ali Asghar Fozouni; Mohammad Ali Aboutalebian
Abstract
In order to achieve optimum quantitative and qualitative yield of potato in each region, new cultivars need to be compared. As such, this study has been carried out to compare 13 new potato cultivars along with two cultivars of Agria and Banba with each other to identify suitable cultivars for leaf area ...
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In order to achieve optimum quantitative and qualitative yield of potato in each region, new cultivars need to be compared. As such, this study has been carried out to compare 13 new potato cultivars along with two cultivars of Agria and Banba with each other to identify suitable cultivars for leaf area index, agronomic, and qualitative traits under climatic conditions of Razan. The statistical design, used in the present study, has been complete randomized block with three replications. Results show that Manito cultivar has reached the maximum leaf area index later than other cultivars, having 12 tubers per plant, which is 112% and 83% superior to Banba and Agria, respectively. Also, Natascha cultivar with a leaf area index of 3.65 has been 57% and 19% leafier than Agria and Banba, respectively. Tuber weight in Ottawa (157.8 g per tuber) has been 70.5% and 20.4% greater than Agria and Banba, respectively. Manito cultivar yields 71399 kg/ha, which is 123% more than Agria and 70% than Banba. Protein percentage of tubers in this study do not differ among the potato cultivars, while the difference is significant among the potato cultivars in tuber starch percentage and the highest values belong to Manito (18.09%) and Ottawa and Concordia cultivars, in the second and place. Generally, Manitou, Caruso, and Faluca cultivars are recommended for planting in the Razan on the basis of traits of maximum leaf area index, number of tubers per plant, and tuber yield.