• List of Articles Sweet Corn

      • Open Access Article

        1 - Investigating the Changes in β-Carotene concentrations of Carrot and Sweet Corn Using Different Methods of Heat Treatments
        M. Yahyaei A. Ghavami M. Gharachorloo K. Larijani S. Z. Mazhari
      • Open Access Article

        2 - Evaluation of Spring Sweet Corn (Zea mays var saccharata) Production in Different Planting Date under Plastic Cover in Gachsaran Province
        H. Naraki, H. Faraji M. Movahedi Dehnavi S.K. Didgah
        In order to evaluate the performance of spring sweet corn (Zea mays var saccharata) at different planting dates under plastic cover, a split plot experiment based on RCBD with three replications was conducted in Gachsaran, in southwest of Iran, during 2009-2010 growing More
        In order to evaluate the performance of spring sweet corn (Zea mays var saccharata) at different planting dates under plastic cover, a split plot experiment based on RCBD with three replications was conducted in Gachsaran, in southwest of Iran, during 2009-2010 growing season. Four sweet corn hybrids (Merit, Challenger, Chase and Basin) were used as main factor and five sowing date (15th and 25th Jan, 4th, 14th and 24th Feb) as sub factor. The results showed that hybrid effect was significant on the days to tassel and ear emergence, days to harvest, ear harvest index, ear length, number of row per each ear, wet biological yield and 1000 grains weight, at 1%, and ear wet yield and grain yield harvest index at 5% probability levels. Also the effect of sowing date was significant on the days to tassel and ear emergence, days to harvest, ear wet yield, ear harvest index, ear diameter, ear length, biological yield, and 1000 grains weight at the 1% probability level. 'Basin' and 'Chase' hybrids were determined to have highest and lowest ear wet yield (17.09 and 15.13 t.ha-1) respectively. The highest and the lowest wet ear yield (16.81 and 15.06 t.ha-1) belonged to 15th Jan. and 24th Feb. respectively. 'Basin' hybrid and 'Challenger' with 8.39 and 7.59 t.ha-1 grain yield were found to be highest and lowest yields. The highest and the lowest grain yield (8.41 t.ha-1 7.45 t.ha-1) were recorded for 15th Jan. and 24th Feb. respectively.' Merit' and 'Chase' hybrids were determined to have longest and shortest days to ear harvest (94.3 and 86.2 days). Longest and shortest days to ear harvest (101.5 and 82 days) were recorded in 4th Jan. and 24th Feb. Sowing date and hybrids interaction effects showed that the longest and shortest days to ear harvest (104.7 and 78.3 days) were calculated in 4th Jan. of Merit and in 24th Feb. for Chase. Based on these results, it can be concluded that 'Basin' hybrid Feb. 24 is the most suitable cultivar to be produced in Gachsaran. Manuscript profile
      • Open Access Article

        3 - Evaluation of Micronutrient Application at Different Growth Stages on Yield and Yield Components and Grain Quality of Sweet Corn
        Afsaneh Yousefpour Elnaz Farajzadeh Memari Tabrizi
        This study aimed to investigate the impact of micro fertilizer application (Iron and zinc alone or together as foliar application in 2.5 and 5 per thousand concentration or soil application in 15 or 30 kg.ha-1) and the fertilizers application time (control, soil applica More
        This study aimed to investigate the impact of micro fertilizer application (Iron and zinc alone or together as foliar application in 2.5 and 5 per thousand concentration or soil application in 15 or 30 kg.ha-1) and the fertilizers application time (control, soil application of fertilizers, spraying at vegetative growth stage, spraying in tassel stage, spraying in two phases of growth and tasseling stage, spraying in grain filling stage and spraying in three stages of growth, tasseling and grain filling) on growth and yield of maize (Zea mays convar. saccharata var. rugosa). The experiment was conducted in Islamic Azad University, Tabriz Branch during 2016 growing season as split plot using a randomized complete block design with three replications. According to the results of the study fertilizer treatments had statistically similar effects on seed of dry yield. All four treatments, soil application of fertilizers, spraying at vegetative growth stage, spraying at two stages of vegetative stage and tasseling and spraying at three stages of vegetative stage, tasseling and grain filling increased this trait similarly and increased seed dry yield by 20, 12, 21 and 22 percent which could be only due to increasing number of seeds produced. According to the survey results in just two treatments, soil application of 5 kg.ha-1 iron and foliar application of iron and zinc in the vegetative and early reproductive stage at a concentration of 5 per thousand, an increase of optimal gains, respectively 334850 and 271298 tomans net income per hectare, obtained. Manuscript profile
      • Open Access Article

        4 - Effects of Planting Pattern on Morphophiysiological Characteristics and Yield and Yield Components of Sweet and Super Sweet Corn Varieties (Zea mays L. var. saccarata)
        آتنا Rahmani M. Nasrolah alhossini S. Khavari Khorasani A. Khalili Torghabeh
        Considering the importance of sweet corn as a new food product, this study was conducted to evaluate the effects of planting pattern on some important morphophiyziological characteristics and yield and yield components of sweet and super sweet corn (Zea Mays L. var. sac More
        Considering the importance of sweet corn as a new food product, this study was conducted to evaluate the effects of planting pattern on some important morphophiyziological characteristics and yield and yield components of sweet and super sweet corn (Zea Mays L. var. saccharata) varieties in Agricultural Research and Natural Resources of Khorasan Razavi Province, Mashhad, Iran in 2011. In this study three methods of planting (one and two raised bed and furrow planting) and three varieties sweet corn (Chase, Temptation, KSC403su) and one super sweet corn (Challenger) were studied in factorial experiment based on Randomized Complete Block Design with three replications. The result of ANOVA showed that sweet corn hybrids had significant differences in kernel depth, conservable grain yield and ear harvest index. It also showed that number of leaves per plant, number of leaves above ear, stem diameter, ear diameter, kernel depth, conservable grain yield and forage yield, were significantly different among three levels of planting patterns. The maximum main of these characters was belonging to two-raised bed planting pattern. In addition, the highest conservable grain yield was belonged to Challenger in two raised bed planting pattern with 25.76 ton/ha and highest fresh foliage yield was 48.6 ton/ha which belonged to Chase on one raised bed planting method. The highest ear harvest index belonged to Chase on two-raised bed planting pattern. Finally, the result showed that two raised bed planting pattern and Challenger with highest conservable grain yield trait could be used to increase sweet corn yield. Manuscript profile
      • Open Access Article

        5 - The Effect of Zinc Sulfate Different Amount Soil and Foliar Application on Correlated Grain Characters in Sweet Corn
        J. Mahmoodi, M. Yarnia
        This research was conducted to evaluate the effects different concentrations of zinc sulfate applications at different growth stages on sweet corn at the Research Station of Faculty of Agriculture in Islamic Azad University, Tabriz branch in 2012. The study was conducte More
        This research was conducted to evaluate the effects different concentrations of zinc sulfate applications at different growth stages on sweet corn at the Research Station of Faculty of Agriculture in Islamic Azad University, Tabriz branch in 2012. The study was conducted in split plot experiment based on Randomized Complete Block Design with three replications. Treatments were seven levels of zinc sulfate application methods: (control, soil application, foliar application at 6-8 leaf growth stage, tasseling, grain filling stage, foliar application at three stages, soil application with foliar application at three stages) as main plot, three levels of foliar and soil application of zinc sulfate: (0.003, 0.005 and 0.007 for foliar application and 15, 25 and 35 kg/ha for soil application) as sub plot. Results showed that the highest grain yield correlated characters were obtained in foliar application at three stages and soil application with foliar application at three stages. In these conditions increasing of dry grain yield and ear were more than 50%. The higher values for grain production were obtained in Zn foliar application with 0.005 concentration (25 kg/ha soil application). Zinc sulfate increased Zn content of grains produced more than 100%. Thus, using Zn not only increases sweet corn grain and ear yield but also increased quality of products. Manuscript profile
      • Open Access Article

        6 - Effect of spraying zinc sulfate solution on yield and enrichment of sweet corn (Zea mays var saccharata) varieties under different patterns of periodic irrigation
        Babak Peykarestan Taiebeh Basaki
        This experiment was carried out in order to evaluate interaction effect of irrigation and zinc foliar application on physiological enrichment indices of two hybrids of sweet corn as the split plot factorial in the form of randomized complete block design with three repl More
        This experiment was carried out in order to evaluate interaction effect of irrigation and zinc foliar application on physiological enrichment indices of two hybrids of sweet corn as the split plot factorial in the form of randomized complete block design with three replications in the experimental field of Faculty of Agriculture, Islamic Azad University of Arak in 2014 and 2015. All furrow irrigation (control, I1) and every other furrow irrigation (I2), and alternative every other furrow irrigation (I3) as the main plot and solution spraying levels including Zn 1 (No injection Zn), Zn 2 (Drop Zn) and Zn 3 (Fast Zn) were the subplots. Also, sweet corn (Zea mays var saccharata) varieties (sweet and ultra-sweet) were considered as the subplots.  Parameters under investigation included plant height, seed yield, one thousand seed weight, harvest index, seed Zn content and leaf proline content. Interaction effects of the treatments increased plant height by 33%, grain yield by 27%, one thousand seed weight by 21%, and harvest index by 13%. The highest amount of cannable grain yield was observed in periodic irrigation, zinc fast in Challenger hybrid while the lowest amount was recorded in every other furrow irrigation treatment without zinc and Chase Hybrid. The highest level of grain zinc content was observed in the alternative irrigation zinc fast treatment in the Challenger hybrid while the lowest level was recorded in every other furrow irrigation without zinc in Chase hybrid which showed significant difference at p≤0.01. The highest interaction of effects was observed in the alternative irrigation treatment, zinc fast, and Challenger cultivar with average harvest index and lowest was observed in every other furrow irrigation, drop Zinc, and Challenger cultivar. According to the results of this study, in low irrigation conditions, application of alternative irrigation pattern and Zinc-fast foliar application in Challenger cultivar is recommended. Manuscript profile
      • Open Access Article

        7 - Study of various plant density effects on some phonological traits of five sweet and super sweet corn varieties
        Mozhdeh Afshari Farhad Azizi Alireza Pazoki Noorali Sajedi
        In order to study effect of there plant densities on phonological traits of 5 exotic sweet and super sweet corn varieties, this experiment was carried out in a factorial design based on RCBD with 3 replications. Experiment was done at research field of Seed and Plant Im More
        In order to study effect of there plant densities on phonological traits of 5 exotic sweet and super sweet corn varieties, this experiment was carried out in a factorial design based on RCBD with 3 replications. Experiment was done at research field of Seed and Plant Improvement Institute at Karaj during 2008.  Results showed that, effect of various plant densities have non-significant on days to tassel formation, pollination and ASI, but the studied densities showed some effect on days to silk development, with respect to the experiment results, the increase of plant density from 75000 to 95000 plant/ha, caused the days to silk development to increase too, and varieties which needed more days to silk development, were also late maturing varieties. There was significant difference between the studied values regarding the days to tassel formation, the days to pollination, and the days to silk development which was absent with respect to ASI. The Obsession variety showed the highest number of days to tassel formation, pollention and silk which indicates its late maturing in comparison to other studied varieties. Manuscript profile
      • Open Access Article

        8 - Effect of sowing date on sweet corn and super sweet corn hybrids in Jiroft, Iran
        Gh. Afsharmanesh
        This experiment was conducted to evaluate the effects of sowing date on yield and its components of 8 sweet corn hybrids in Jiroft area in 2007 at Agricultural Research Center of Jiroft and Kahnouj, Iran. The design was laid out as a split plot design based on RCBD with More
        This experiment was conducted to evaluate the effects of sowing date on yield and its components of 8 sweet corn hybrids in Jiroft area in 2007 at Agricultural Research Center of Jiroft and Kahnouj, Iran. The design was laid out as a split plot design based on RCBD with three Replications. The main factor had two levels of sowing date (August 22ed, September 6th) and subplots were 8 hybrids (EXO8716636, Obsession, Harvest Gold, Chase, Temptation, Challenger, Basin and Power House). The result showed that highest economical yield (ear fresh weight at economical harvest) were obtained in August 22ed with 27.54 ton/ha and ear fresh yield was 24.05 ton/ha in September 6. The highest and lowest ear fresh yield were obtained about from cultivar Basin 30.73 ton/ha hybrid temptation 20.42 ton/ha respectively. Maximum ear fresh yield with 32.42 ton/ha and  31.87 ton/ha were obtained from hybrid Basin and Power house in planting date August 22. Finally, sweet corn cultivars, Harvest Gold, Power House and Basin with August 22ed are recommended for the Jiroft region. Manuscript profile
      • Open Access Article

        9 - Effect of nitroxin, nitrogen and manure application on yield, nitrogen use efficiency and Some crop characteristics in sweet corn
        M. Sharifi M. Mirzakhani N. A. Sajedi
              In order to effect nitroxin levels of nitrogen and manure application on nitrogen use efficiency and some quantitative traits in sweet corn varieties as Chase factorial experimental design based on randomized complete block with three repl More
              In order to effect nitroxin levels of nitrogen and manure application on nitrogen use efficiency and some quantitative traits in sweet corn varieties as Chase factorial experimental design based on randomized complete block with three replications in agricultural research farm in 2010, Islamic Azad University Arak was performed. Factors studied include two levels nitroxin inoculated and non inoculated with the seed, pure nitrogen at three levels 0, 50 and 100 kg ha-1 and manure at three levels 10, 20 and 30 tons ha-1 were. The results showed nitroxin on the characteristics of grain per ear, ear away from the field level, cob weight, grain yield and nitrogen use efficiency had the effect, so that the increase of grain per ear, cob weight, grain yield per hectare and nitrogen use efficiency was. Animal manure also on the characteristics of grain per ear, ear away from the field level, ear leaf area, grain hectolitre weight, grain yield per hectare and nitrogen use efficiency had the effect, so that reduces the nitrogen use efficiency and grain per ear was. Nitrogen effects on grain protein, cob weight, ear leaf area, grain yield and nitrogen use efficiency was significantly increased grain protein and grain yield per hectare was. Excess nitrogen and manure significantly reduced nitrogen use efficiency was also inoculated seed nitroxin positive effect on nitrogen use efficiency found. Manuscript profile
      • Open Access Article

        10 - Sweet corn hybrids, weed management and plant density effects on sweet corn yield and yield components in Hormozghan, Iran
        H. R. Farhadi Afshar H. Madani M. H. Shirzadi E. Najafi
        In order to determine of important agronomic characteristics of sweet corn hybrids and weed or without weed competition under different plant density at Iranian warm environment this experiment was conducted on 2006 at the HajiAbad plant research center, Hormozgan, Iran More
        In order to determine of important agronomic characteristics of sweet corn hybrids and weed or without weed competition under different plant density at Iranian warm environment this experiment was conducted on 2006 at the HajiAbad plant research center, Hormozgan, Iran. The experiments were perform in a split split plot in contract to RCBD for 2 sweet corn (KSc.403 and Shimmer hybrids) as a main plots and weed control and non weed control on sub plots and three plant density 53,67 and 89 thousand plant per hectare as a sub sub plots with 4 replications. The results showed that the difference of 2 hybrids about seed yields, number of seed per row and number of row per ear were significant.  Then, weed control could increase the seed yield near 7.8%. Maximum yield of seed corn was about 9700 kg/ha for Shimmer hybrid at 89000 plant density per hectare under full weeds control condition. Finally the Shimmer hybrid of sweet corn showed better studied characteristics in compare to KSc.403, and Shimmer could produce the highest seed yield by increase the plant density from 53000 to 89000 too, but under weed control. Manuscript profile
      • Open Access Article

        11 - Comparison between grain yield and yield components of sweet corn hybrids at different sowing dates in Arak environment
        Hamid Madani Marzieh GHasemi
        The present research was conducted in order to investigate and compare the yield and yield components of hybrid cultivars of sweet corn in different sowing dates as split plot with 4 replications in complete random blocks at Islamic Azad University, Arak branch, in 2008 More
        The present research was conducted in order to investigate and compare the yield and yield components of hybrid cultivars of sweet corn in different sowing dates as split plot with 4 replications in complete random blocks at Islamic Azad University, Arak branch, in 2008. The treatments include date of sowing as main factor (09 June 2008, 20 June 2008 and 01 July 2008) and the cultivar as the subsidiary factor (Merit, Chase, Ksc.404, Ksc.403). The results indicate that sowing date has affected on grain yield, plant height, grain number in row, 1000 grain seeds and biologic yield; and the differences were statistically significant. The studies reveal that the effect of sowing date and cultivar on number of rows in was not statistically significant and it was not affected by sowing date and cultivar. In addition, among the studied cultivars, the cultivar Ksc.404 showed more privileges compared to the other studied cultivars such that in the matters of height, grain yield, grain number in row, 1000 grain weight and the biologic yield, the highest specifications were attributed to it and grain yield in maize harvested in the stage equivalent cultivar KSC.404 by 4.76 t/h and 1000 grain weight by 190.8 gr compared to the other were higher than other cultivars which has been studied. The results of this experience show that the date of sowing on 09 June, 2008 and the cultivar Ksc.404 were the most suitable sowing date and cultivar, respectively, according to this region's climate.     Manuscript profile
      • Open Access Article

        12 - Effect of herbicides and mulch on some morphological traits and yield of sweet corn
        Sayyed Mehdi Tavasoli Tabayi Hamidreza Larijani Mohammad Nasri
        There is no any selective herbicide for sweet corn in Iran and the practices of weed control strictly raise the costs of production. To study of the common dental herbicides for dent corn and mulch on the growth and yield of sweet corn and weed suppression, an experimen More
        There is no any selective herbicide for sweet corn in Iran and the practices of weed control strictly raise the costs of production. To study of the common dental herbicides for dent corn and mulch on the growth and yield of sweet corn and weed suppression, an experiment was conducted in a randomized complete block design with three replications at Varamin, Iran, in 2015. The treatments were included usage of 1.Nicosulfuron (1.5 lit.ha-1),  2. Nicosulfuron+ Rimsulfuron (Ultima, 175 g.ha-1) ,3. Bentazon (2.5 lit.ha-1), 4. mixed of Atrazine (1.5 kg.ha-1) +Acetochlor (4 lit.ha-1), 5. mixed of Nicosulfuron (1lit.ha-1) + Bromicide MA (1 lit. ha-1), 6.silver on black plastic mulch, 7. blue biodegradable plastic mulch, 8. non-weed control and  9.complete hand weeding. Results revealed that mixed of atrazine + acetochlor controlled weed 100% related to weedy check. The highest stem height (134 cm) and diameter (25 mm), total dry weight (5888 Kg.ha-1) and feed (13110 Kg.ha-1) was also obtained in the same treatment. The Most ear length without any significant difference was measured in the control, nicosulruron + bromicide MA, atrazine + acetochlor, and silver on black plastic mulch treatments, respectively. Yield in plastic and Biodegradable mulch treatments fell to 18% and 23% compared to control treatment. Also maximum protein content was in Nicosulfuron treatment (2.4%) and maximum sugar solution content was in biological mulch (13.2%). With regard to the fresh consumption of sweet corn, the use of mulch can eliminate harmful effects of herbicides on plants and environment Manuscript profile
      • Open Access Article

        13 - Effect of pretreatment salicylic acid on germination and seedling growth in sweet corn (Zea mays L.) under salt stress conditions
        Prisa Sojoodi meysam oveysi Farshad Ghooshchi
        To study the effect of salicylic acid pretreatment on germination and alpha-amylase enzyme activity, sweet corn seedling in salinity, physiological testing Varamin Agricultural University - master design. Sweet corn seeds, varieties Saccharata after soaking in solution More
        To study the effect of salicylic acid pretreatment on germination and alpha-amylase enzyme activity, sweet corn seedling in salinity, physiological testing Varamin Agricultural University - master design. Sweet corn seeds, varieties Saccharata after soaking in solution (0, 0.5 and 1 mM) of salicylic acid for 24 h for germination under salt stress conditions, the paper roller dipped in a solution of NaCl concentrations (0, 25, 50, 100 and 200 mM) were transferred and in vitro tests. After germination, germination percentage, seedling dry weight and alpha-amylase enzyme activity was measured. Results showed that salinity reduces germination in seeds of sweet corn, and 200 mM salt concentration decreases, so 33.58 is the control of germination. Salicylic acid also was found to have a positive impact on germination as well as control and stress treatments increased germination will occur. Salicylic acid is used to increase seedling dry weight. Enzyme activity assays showed that the alpha-amylase enzyme activity in terms of reduced salinity and salicylic acid increases the activity of this enzyme, ie to reduce the effects of salinity. According to the obtained results it can be concluded that pretreatment of sweet corn seeds with salicylic acid, 1 mM Had a positive effect on germination and affects the antioxidant defense system of the plant sweet corn seedlings under salt stress is increased resistance. Manuscript profile
      • Open Access Article

        14 - Effects of organic and chemical fertilizers of nitrogen on some soil properties and sweet corn traits (var.Gardeh Afshan 400)
        Masoumeh Shahmoradi Manouchehr Farboodi Shahram Shahrokhi
        In order to study the response of soil properties and sweet corn traits to different levels of organic and chemical fertilizers of nitrogen, a greenhouse­-­laboratory research was carried out as factorial based on a completely randomized design with three replic More
        In order to study the response of soil properties and sweet corn traits to different levels of organic and chemical fertilizers of nitrogen, a greenhouse­-­laboratory research was carried out as factorial based on a completely randomized design with three replications in Miyaneh Branch, Islamid Azad University. Experimental factors included poultry manure at three levels (0, 20 and 30 ton.ha-1) and nitrogen fertilizer at three levels (0, 100 and 200 kg.ha-1 from urea source). Results showed that application of poultry manure in soil increased soil pH, EC and organic carbon. Also, it had a significant effect on chlorophyll content, plant height and leaf area of sweet corn plants. Application of 20 and 30 ton.ha-1 poultry manure resulted in higher values of the studied traits. However, there was no ­significant differences between 20 and 30 ton.ha-1 poultry manure in most cases and so, application of 20 ton.ha-1 poultry manure was enough for achieving optimal sweet corn growth in greenhouse. According to the results, combined application of 20­ ton.ha-1 poultry manure and 100­ kg.ha-1 nitrogen from urea source could be recommended for optimum nitrogen supplying in sweet corn cropping system. Manuscript profile