A. Nasrollahi; I. Alahdadi; M. Ghorbani Javid; M.S. Hoseinifard
Abstract
linoleic acid, oleic acid, planting date, seed filling stage, oil yield. fatty acid composition of pumpkin (Cucurbita pepo convar. pepo var. styriaca), a split plot experiment was conducted in a randomized complete block design with three replications during 2013-2014. Three planting dates (21 April, ...
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linoleic acid, oleic acid, planting date, seed filling stage, oil yield. fatty acid composition of pumpkin (Cucurbita pepo convar. pepo var. styriaca), a split plot experiment was conducted in a randomized complete block design with three replications during 2013-2014. Three planting dates (21 April, 22 May, 22 June) as the main factor and application of methanol (30% V/V) in four levels (control, pre-production phase, post-production phase, seed filling stage) were studied as the sub factor. Results showed that the interaction effect of planting date and application of methanol on seed yield in fruit, seed dry weight, 1000-seed weight, fruit yield, oil percentage and fatty acids compositions were significant at 1% probability level. The highest seed yield, seed dry weight, fruit yield, and oil content were obtained in the methanol foliar application in the pre-production phase in June 22. The highest 1000-seed weight (1155.6 g) was belonged to the methanol foliar application in the post-production phase in June 22. The foliar application treatments in seed filling stage in June 22 and control treatment also in May 22 showed the highest amount of oleic acid. The highest amount of linoleic (43.36%), linolenic (1.86%), and palmitic (21.20%) acids was obtained under methanol foliar application in the post-production phase in May 22, June 22 and April 21, respectively. The control treatment showed the highest amount of stearic acid (11.5٪) in the first planting date (April 21). Finally, the planting date of medicinal pumpkin in June 22 with foliar application of methanol in the pre-production phase in order to increasing of yield, and foliar application in the post-production phase to improve the qualitative traits of oil are recommended.
S. Karami; M.R. Sabzalian; M. Rahimmalek; Gh. Saeidi; L. Khodaee
Abstract
In order to investigate the possible influence of seasonal variation on the percentage of seed oil and total phenolic content in seeds and leaf of safflower, three populations (19 accessions) including 6 cultivars of cultivated species (Carthamus tinctorius), 4 genotypes of wild species (C. oxyacanthus) ...
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In order to investigate the possible influence of seasonal variation on the percentage of seed oil and total phenolic content in seeds and leaf of safflower, three populations (19 accessions) including 6 cultivars of cultivated species (Carthamus tinctorius), 4 genotypes of wild species (C. oxyacanthus) and 9 genotypes of F5 generation derived from inter-specific cross (C. tinctorius× C. oxyacanthus) in two sowing dates, were evaluated. The results showed the effect of planting dates was significant on the percentage of seed oil and total phenolic content of seeds (p<0.01), except for leaf phenolic content. The percentage of seed oil and total phenolic content of seeds was higher in summer and spring planting dates, respectively. Also, in both planting dates, populations of cultivated and wild species had higher and lower percentage of seed oil, respectively. Whereas, percentage of seed oil in the populations derived from inter-specific cross was intermediate between cultivated and wild species, some genotypes in these populations had high percentage of seed oil and were in the range of percentage of seed oil observed for cultivated genotypes. Also, the total phenolic content of seeds in the genotypes with colored seed coat (black-seeded genotypes derived from the cross and wild genotypes) was higher comparing with white seed coat genotypes (cultivars and white-seeded genotypes derived from interspecific cross), then it seems that not only planting dates but also seed coat and genetic purity of loci controlling seed coat color may affect total phenolic content of seeds. In general, results of this experiment indicated that there is possibility of improving seed oil percentage and total phenolic content of seeds as the two factors with medicinal properties in Carthamus spp. using variation in planting dates and also inter-specific crosses. Furthermore, safflowerleaf is a rich source in total phenolics in comparison with seed and can be used in pharmaceutical industries.
F. Ghobadi; M. Ghorbani Javid; A. Sorooshzadeh
Abstract
This research was aimed to evaluate the flower and stigma yield as well as growth traits of saffron (Crocus sativus L.) under effect of planting dates and corm size. The experiment was factorial in a complete randomized design with three replicates, conducted at the research farm of College of Aburaihan, ...
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This research was aimed to evaluate the flower and stigma yield as well as growth traits of saffron (Crocus sativus L.) under effect of planting dates and corm size. The experiment was factorial in a complete randomized design with three replicates, conducted at the research farm of College of Aburaihan, University of Tehran during 2013-2014. The treatments consisted of four planting dates (June 10th, September 7th and 27th, and October 12th) and two corm weights (5-9 g and 10-14 g). Our results showed that the flower and stigma yield of large corms, planted on June 10th, was 50% higher as compared with other planting dates, and on September 27th, the yield was 25% higher. However, this difference was not significant in comparison with September 7th. The lowest flower and stigma yield was recorded for the planting date of October 12th in comparison with other planting dates, and these traits were higher in large corms as compared with small ones in all planting dates. The flower length and number of buds on June 10th were higher than that of others. In addition, the highest leaf dry weight and length in primary and secondary buds were recorded for the planting dates of June 10th and September 6th, which could be effective in production of daughter corms in the next year. The results showed that all growth characteristics in large corms were higher than that of small ones. Overall, these results indicate that the planting of 10-14-gram large corms on June 10th can improve the yield and growth characteristics of saffron in Varamin plain.
A.R. Sedaghati; M. Kafi; Sh. Rezvan Bidokhti; Sh. Akbari
Abstract
To study the effect of planting date and density on the yield, yield components and allicin content of two garlic ecotypes (Allium sativum L.), an experiment was conducted in a farmland in Damghan, Iran during the 2011-2012 growing season. The experiment was arranged as a split-split-plot in a randomized ...
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To study the effect of planting date and density on the yield, yield components and allicin content of two garlic ecotypes (Allium sativum L.), an experiment was conducted in a farmland in Damghan, Iran during the 2011-2012 growing season. The experiment was arranged as a split-split-plot in a randomized complete block design with three replications. Three planting dates (17-Oct, 11-Nov, 6-Mar) were main plots. Two ecotypes (Kavire Damghan and Hamedan) were subplots, and three planting densities (35, 45 and 55 plants per m2) were sub-sub-plots. The effect of planting date on plant height, fresh and dry weight of bulbs, yield, diameter and dry weight of cloves was significant, and delay in planting date decreased these traits. The values of dry and fresh weight of bulbs, plant yield, dry weight and diameter of cloves and allicin content were significantly higher in Hamedan ecotype in comparison with Kavire Damghan ecotype. The planting density had significant effect on fresh and dry weight of bulb and dry weight and diameter of cloves, as these traits were reduced by increasing the density. Furthermore, the effect of planting density on height and yield of plant and number of cloves in bulb was significant. To achieve the highest fresh yield (1.7kg.m-2) and dry yield (0.27 kg.m-2), 17-Oct was identified as the best planting date. Hamedan ecotype was more favorable as it had higher bulb fresh and dry weight, diameter and dry weight of cloves, allicin contents and yield. The most desirable planting density was 55 plants per m2 due to having higher values of plant height, number of cloves in bulb and yield.
M.R. Kodori; E. Sherifi Ashorabadi; M. Ghonchei
Abstract
Aloe vera L. is considered as one of the most important medicinal species, having high resistance to water scarcity and soil salinity. To investigate the effects of planting date and location on yield and a few characteristics of Aloe vera, a split plot experiment in a randomized complete blocks design ...
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Aloe vera L. is considered as one of the most important medicinal species, having high resistance to water scarcity and soil salinity. To investigate the effects of planting date and location on yield and a few characteristics of Aloe vera, a split plot experiment in a randomized complete blocks design was conducted with three replications in 2009. The main treatment included location at two levels (Tekab, 329 m a.s.l and Chahar Farsakh, 930 m a.s.l) and two planting dates including (October 2009 and February 2009) were considered as sub treatments. Data were analyzed in terms of yield per plant, height, leaf length, leaf width, and gel yield. According to the results, the highest yield, plant survival, gel yield and leaf number were obtained from the second planting date (25 Feb.). Also, a significant and positive correlation was found among the studied traits, as leaf number, leaf diameter, and plant height had the highest correlation with flower yield. According to the obtained results, the best planting location and planting date were Tekab (Shahdad) and 25 February, respectively.
S. Taherniaye Mozhdehi; M. Esfahani; D. Bakhshi; B. Rabiei
Abstract
In order to investigate the effects of planting date and plant density on phyllochron and active integradients of milk thistle (Silybum marianum L.), two field factorial experiments based on a randomized complete blocks design were carried out in two sites (Rudbar and Rasht) in Guilan province, Iran, ...
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In order to investigate the effects of planting date and plant density on phyllochron and active integradients of milk thistle (Silybum marianum L.), two field factorial experiments based on a randomized complete blocks design were carried out in two sites (Rudbar and Rasht) in Guilan province, Iran, with three planting dates (Sep., 23; Oct., 12 and Nov., 1) and three plant densities (4, 6 and 8 plant.m-2) during 2008-2009. In this experiment it was observed that phyllochron was affected by planting date and plant density and with delay in planting date (from Sep., 23 to Nov., 1), phyllochron decreased and the rate of leaf appearance increased. The highest rate of leaf appearance was obtained in Oct., 12 (8.6 and 7.7 days in Rasht and Rudbar, respectively). Phyllochron increased with increasing plant density and the lowest phyllochron and, in other words, the maximum rate of leaf appearance was obtained in Rudbar site at a plant density of 4 plant.m-2 (7.7 days). The effect of planting date on silibin content of seeds in Rudbar site was significant (maximum 1.872 mg.g.-1DW) but it wasn’t significant on silibin content in Rasht. Effect of plant density was not significant on silibin yield.ha-1 and silibin content at both sites. Results of combined analysis showed that the effect of planting date on silibin and interaction effect of site and planting date on silibin yield.ha-1 was significant. The maximum silibin yield (1.31 kg.ha-1) was obtained from Sep., 23 in Rudbar site. According to the results of this experiment, although a delay in planting enhanced the rate of leaf appearance and increased plant's readiness to over-wintering, but it had no increasing effect on silibin content of seeds.
S.G.R. Mosavi; M.J. Segatoleslami; M. Pooyan
Abstract
In order to study the effect of planting date and plant density on yield and seed yield components of isabgol (Plantago ovata L.), an experiment was conducted at Agricultural research center of Islamic Azad University Birjand Branch, in 2008. The experimental design was split-plot based on randomized ...
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In order to study the effect of planting date and plant density on yield and seed yield components of isabgol (Plantago ovata L.), an experiment was conducted at Agricultural research center of Islamic Azad University Birjand Branch, in 2008. The experimental design was split-plot based on randomized complete blocks with three replications. Main plots consisted of three planting date (18 April, 9 and 30 May), and sub-plots included three density levels (16.6, 22.2 and 33.3 plants. m-2). The results showed that delay in planting date from 18 April to 30 May significantly decreased number of spikes per plant (35.2%), number of seed per spike (39.8%), seed yield (60.2%), biological yield (49.3%) and harvest index (19.7%). Plant density had significant effect on number of spikes per plant and per m2 biological yield, seed yield, harvest index and seed yield per plant. According to the results, it could be concluded that planting date and plant density are effective parameters in crop performance. In this research, planting date of 18 April and plant density of 33.3 plants m-2 had the highest seed yield (558.99 kg ha-1).
F. Askari; E. Sharifi Ashorabadi
Abstract
The current study was performed to evaluate the effect of planting date and locality of seed on seed yield of Pimpinella affinis Ledeb. The experiment design was factorial done using a randomized complete blocks design with three replications. Treatments included locations from where seeds were collected ...
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The current study was performed to evaluate the effect of planting date and locality of seed on seed yield of Pimpinella affinis Ledeb. The experiment design was factorial done using a randomized complete blocks design with three replications. Treatments included locations from where seeds were collected (Khojir, Noshahr and Chalous Road areas) and planting dates (November 6th, December 6th and April 9th in 2006 and 2007). The experiment was performed in Alborz farm research complex located in Karaj. The results of variance analysis of the experiment in 2006 showed that the effect of planting date on seed yield was not significant while the effect of locality and interaction effect between planting date and locality was statistically significant at 1% significance level. Means comparison of treatments showed no significant differences between the yield seed of planting dates of November 6th and December 6th, while December cultivation's yield seed was higher (64.467 Kg/ha). The effect of locality on yield seed was significant as yield seed of Khojir locality (175.1 Kg/ha) was more than that of Chalous and Noshahr localities. Interaction effects between locality and planting date on yield seed were statistically significant at 5% significance level. Yield seed of December cultivation from Khojir locality (191.4 Kg/ha) was the highest amount. The results of variation analysis in 2007 showed that the effects of planting date, locality and their interaction on seed yield were significant at 1% significance level. Means comparison of treatments showed no significant differences between the yield seed of planting dates of November 6th and December 6th, but they had significant difference with April cultivation, while November cultivation's yield seed was higher (218.9 Kg/ha). The effect of locality on yield seed was significant as yield seed of Khojir locality (281.9 Kg/ha) was more than that of Noshahr locality. Interaction effects between locality and planting date on yield seed were significant as yield seed of November and December cultivations from Khojir locality (404.6 and 397.9 Kg/ha) was the highest amount. According to the results of cultivation for two years it can be concluded that autumn cultivation had more yield seed and biological function than that of spring cultivation due to having long growth period. In addition, seeds collected from Khojir locality had the highest yield seed and biological function among three studied localities.
M. Najafpour Navaei; M. Golipour; E. Parsa
Volume 24, Issue 2 , August 2008, , Pages 198-206
Abstract
Agrimonia eupatoria L. is a perennial plant that has been distributed in Iran. Its effective components are used to cure some diseases such as hepatitis, control bleeding sedative, and balance especially in women menstrual. The purpose of this investigation was finding the best time and the normal distances ...
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Agrimonia eupatoria L. is a perennial plant that has been distributed in Iran. Its effective components are used to cure some diseases such as hepatitis, control bleeding sedative, and balance especially in women menstrual. The purpose of this investigation was finding the best time and the normal distances in cultivation on seed yield. Three stand density as 30, 40, 50cm (4, 6.2 and 9.2 per m-2) and four planting dates were based on factorial design with three replications, in research institute of forest and rangelands. Results showed 4/m-2 had significant differences on seed yield.
M.A. Dorry
Volume 22, Issue 3 , November 2006, , Pages 262-269
Abstract
This study was conducted to investigate planting date and seed rate on blond psyllium )Plantago ovata Forsk.) in dry land condition. This experiment was designed in a split plot arrangement using complete randomized block design with three replications in Maraveh- tapeh station in Golestan province. ...
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This study was conducted to investigate planting date and seed rate on blond psyllium )Plantago ovata Forsk.) in dry land condition. This experiment was designed in a split plot arrangement using complete randomized block design with three replications in Maraveh- tapeh station in Golestan province. The treatments comprised two planting dates and three seed rates: 2, 4 and 6 Kg/ha. Planting date had no significant effect on spike length, number of spikes per plant and number of seed per spike but seed rates effect was significant p< 0.05, p< 0.01, p < 0.01 respectively. Results indicated that seed rates had significant difference (p < 0.05) on seed yield so that the highest yield obtained at the highest seed rate (6 Kg/ha) while planting date had no significant effect on seed yield.
A. Akbarinia; M. Khosravifard; M.B. Rezaee; E. Sharifi Ashoorabadi
Abstract
In order to study the autumn and spring cultivation of Fennel (Foeniculum vulgare), Ajowan (Carum copticum), Black cumin (Nigella sativa) and Anis (Pimpenella anisum) under irrigation and non-irrigation conditions an experimental bulk design with 4 replications was conducted in Alamut medicinal ...
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In order to study the autumn and spring cultivation of Fennel (Foeniculum vulgare), Ajowan (Carum copticum), Black cumin (Nigella sativa) and Anis (Pimpenella anisum) under irrigation and non-irrigation conditions an experimental bulk design with 4 replications was conducted in Alamut medicinal plant research station in 2000 and 2001. Each medicinal plant was studied in a separate experiment. Treatments were included: autumn + irrigation, autumn + non–irrigation, spring + irrigation and spring + non-irrigation. The results showed significant different responses mentioned plants planting season Fennel and black cumin had earlier spring growth, more shoot, seed weight, and more seed yield because of better establishment in autumn. While ajowan and anis autumn planting could not be successful because of damping off, so their planting can only be practical in spring. All plants were better in respect of height; seed weight and seed yield in irrigation compared with non-irrigation condition. There was less difference between seed yield of fennel in irrigation and non-irrigation condition in autumn planting. Fennel and black cumin had 1703 and 1298 in irrigation, 948 and 447 kg/ha in non-irrigation condition in autumn planting. Also ajowan and anis had 1147, 1120 in irrigation and 312 and 361 kg/ha in non-irrigation condition in spring planting. Result of Pearson Correlation Coefficient about black cumin showed that there were significant correlations among all of the traits.
M.R. Koduri; Q. Kelarastaghi; D. Darvishi
Volume 19, Issue 4 , January 2004, , Pages 411-423
Abstract
In order to investigate sowing date and cultivar effect a split –plot design was arranged in randomized complete block with four replication carried out in natural resources research station of kerman research center. Main plots were included four sowing dates (15Mar and 30Mar and 14Apr and ...
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In order to investigate sowing date and cultivar effect a split –plot design was arranged in randomized complete block with four replication carried out in natural resources research station of kerman research center. Main plots were included four sowing dates (15Mar and 30Mar and 14Apr and 29Apr) and sub plots were included three cultivars (Cv.kerman, arak 2811,Esfahan native). From planting to total growth stages the following parameters (seedling, stems, bottom, flowering, and maturation) were effected with plant date and were reduced with delay in planting. Effect of plant date on plant height, sub branch number, heads per plant, seed weight, dry weigh of plant, seed yield and flowering, oil, and protein yield was significant and all of them reduced with delay in plant. Seed protein percent was increased with delay in planting and also seed oil increased with acceleration in early planting. The results showed that interaction between plant date and cultivar on plant height, sub branch number, heads per plant, seed number per heads, seed weight, biological yield, seed yield, oil yield, protein yield, percent of protein and oil was significant but in harvest index wasn’t significant. The second plant date 30March and CV.kerman are suitable for seed yield and Esfahan native cultivar is suitable for seed oil and recommend for planting and producing in Kerman climate condition.
