Journal of Plant production Sciences: 1 (1)

Open Access Article

1 - Interactive effect of planting date and variety on agronomical characterestics and incidence of blast disease in rice replanting (Oryza sativa L.)
Allahyar Fallah*1 Alireza Nabipour2 Abdulreaza Ranjber3

In recent years, two times cultiviation in year, or rice replanting, has gained popularity in Haraz watershed basin. In order to determine the interactive effect of planting date and variety on growth index, yield, yield components, and percent of blast desease in Tarom More

In recent years, two times cultiviation in year, or rice replanting, has gained popularity in Haraz watershed basin. In order to determine the interactive effect of planting date and variety on growth index, yield, yield components, and percent of blast desease in Tarom Mahali, Binam and Koohsar varieties in replanting cultivation, a field experiment was carried out at the Deputy of the Rice Research Institute of Iran, Mazadaran branch (Amol), in 2015 and 2017.Experiment was laid out as a split plot base complety random block design with three replications, where planting dates, as main plot, included 24 July, 2 and 12 AugustandTarom Mahali, Binam and Koohsar varietieswere put in sub-plots.Plot size was 3×4 m2 with a plant spacing of 20×20 cm2, and 2-3 seedlings per hill.Agronomical characterestics were measured at three growth stages, namely maximum tillering, flowering and physiological maturity. Results showed that tiller and panicle number per hill was higher in third planting date. SPAD value was affected by variety and Koohsar had highest SPAD value in all planting dates. Highest crop growth and net assimilation rate was obtained in Koohsar variety at flowering satge. The Highest yield was obtained in the second planting date for Koohsar and Binam varieties, though percent of blast disease incidence was higher as well. The higher yield of Koohsar variety could be attributed to having higher grain weight and harvest index compared to Tarom Mahali variety. Based on the results, best planting date would be from 2 to 12 August of in Haraz watershed basin. Manuscript profile

Open Access Article

2 - Effect of seed priming and weed management on yield and yield components of maize (Zea mayz L.)
Amin Allah Poudineh1 Hassan Makarian*2 Hamid Abbasdokht2 Mehdi Baradaran Firouz Abadi2 Abbas Nasiri Dehsorkhi3

In order to investigate the effect of integrated weed management on yield and yield components of maize (SC704) an experiment was conducted at the research field of Shahrood University of Technology as randomized complete blocks design with four replications. The treatm More

In order to investigate the effect of integrated weed management on yield and yield components of maize (SC704) an experiment was conducted at the research field of Shahrood University of Technology as randomized complete blocks design with four replications. The treatments were; weed free, weedy, recommended herbicide dose (nicosulfuron 80 g.a.i. ha-1), hydro priming + reduced herbicide dose (nicosulfuron 40 g.a.i. ha-1), hydro priming + weeding 6 weeks after crop emergence, hydro-priming, hydro-priming + priming with salicylic acid + reduced herbicide dose, priming with salicylic acid, priming with salicylic acid + weeding, priming with salicylic acid + reduced herbicide dose, hydro-priming + priming with salicylic acid + weeding. The results indicated that no significant difference was observed in density and biomass of weeds between the combinations treatments (priming with salicylic acid + reduced herbicide dose and hydro-priming + priming with salicylic acid + weeding 6 weeks after emergence) and herbicide recommended dose treatment. Hydro-priming + reduced herbicide dose increased the biological yield by 25 and 45 percent in comparison to herbicide recommended dose and weed free treatments, respectively. The results indicated that hydro priming + reduced herbicide dose and priming with salicylic acid + reduced herbicide dose of nicosulfuron increased grain yield by 45.3% in comparison to weedy treatment. Based on the results of this experiment, seed priming in combination with reduced dose of herbicide and or with weeding, can effectively control weeds and increase crop yield and also reduce herbicide consumption. Manuscript profile

Open Access Article

3 - A Comparison of urea and sulfur coated urea urea on quantitative and qualitative yield of rice )Oryza sativa L.( under different silica rate
Leila Kayan Hosseini 1 Mani Mojaddam2* Timoor Babaei Nejad3

In order to investigate the comparison of urea and sulfur cotaed urea fertlizer on quantitative and qualitative yield of rice, Anbar Najafi cultivar under different silica, this research was conducted in Shadegan in 2017 carried out as split-plot based on randomized com More

In order to investigate the comparison of urea and sulfur cotaed urea fertlizer on quantitative and qualitative yield of rice, Anbar Najafi cultivar under different silica, this research was conducted in Shadegan in 2017 carried out as split-plot based on randomized complete blocks design with three replications. Treatments consisted of urea fertilizer sources in two levels: simple urea fertilizer (250 kg net nitrogen) and sulfur coated urea fertilizer in main plots and silica at four levels: one in a thousand, two in thousand, three in thousand and four in thousand were in sub plots. The results showed that urea fertilizer and silica fertilizer significantly affected on grain yield, number of spikes per square meter, 1000 grain weight and protein content. Sulfur coated urea effectively yield compared to conventional urea fertilizer at a rate of 23.22 percent. Also, the interaction of urea and silica fertilizers on all measured traits was significant. The highest grain yield (290.41 g/m2) was obtained from urea fertilizer treatment with sulfur coating and spraying two in 1000 of silica. The highest protein content (10.04%) obtained in  sulfur coted urea fertilizer with two per thousand spray of silicon , respectively. Therefore, according to the results, values of two per thousand silica and urea fertilizer with sulfur coating due to increased protein and grain yield as a suitable treatment in the study area are introduced. Manuscript profile

Open Access Article

4 - Biochemical Response of Different Hybrids of Corn to Consumption of Biological and Chemical Potassium Fertilize and Drought Stress in Dehloran climatic
Mohamad Sadegh Azadi1,2 Alireza Shokoohfar2* Mani Mojadam2 Shahram Lak2 Mojtaba Alavifazel2

This study was carried out to evatuate the effects of combined application of chemical and biological Potassium fertilizer, on biochemical characteristics and grain yield of corn hybrids under drought stress conditions in 2015 and 2016 years in Dehloran city. The experi More

This study was carried out to evatuate the effects of combined application of chemical and biological Potassium fertilizer, on biochemical characteristics and grain yield of corn hybrids under drought stress conditions in 2015 and 2016 years in Dehloran city. The experiment was conducted as split-split plots in a randomized completely block design (RCBD) with three replications. The main factor consists of three levels of stress,optimum irrigation, irrigation cut in 12 leaf stage and irrigation cut at the corn flower emergence stage, Sub-factor contains of three levels of potassium: application of 100% fertilizer requirements as Potassium sulfate fertilizer, application of 70% Potassium sulfate fertilizer along with 30% Pta-Barvar-2 bio-fertilizer, 50% Potassium sulfate fertilizer along with 50% Pta-Barvar-2 bio-fertilizer and sub-sub- factor contains of three corn hybrids: AS71, NS640 and CORDONA. The results of compound analysis showed that the interaction between year, drought stress, fertilizer and hybrid were significant on chlorophyll content, proline and grain protein at 1% probability level. Also, the interaction of drought stress, fertilizer, hybrid had significant effects on the enzyme superoxide dismutase, potassium grain and grain yield. Also, Application of biological and chemical potassium fertilizers under drought stress had a positive effect on biochemical characteristics and grain yield. Based on the interaction between treatments, the highest grain yield (12230 kg.ha-1) was found in 50% potassium fertilizer + 50% fertilizer Peta Fertilizer in hybrid AS71 under favorable irrigation conditions and the lowest grain yield (4616 kg.ha-1) obtained by NS640 hybrid and 100% chemical fertilizer application and by the irrigation cut at the corn flower emergence stage. Manuscript profile

Open Access Article

5 - The effect of harvesting time on germination characteristics and some antioxidant properties of different wheat varieties
Marzieh Shakerian1 Mojtaba Alavifazel2* Mani Mojaddam3

In order to study the effect of harvesting time on germination characteristics and some antioxidant properties of different wheat varieties, this study was carried out in a factorial in a completely randomized design with three replications in Izeh city. The experiment More

In order to study the effect of harvesting time on germination characteristics and some antioxidant properties of different wheat varieties, this study was carried out in a factorial in a completely randomized design with three replications in Izeh city. The experiment factors consisted of harvesting time at two levels of harvesting in hard-paste and harvesting stage at maturity stage and bread and durum wheat cultivars in six levels of Natasha, Aflak, Chamran, Dehdasht, Behrang and Karkheh. The results showed that the highest antioxidant content of the seeds, such as polyphenol, flavonoids and antioxidant capacity, belonged to Chamran cultivar and harvest at maturity stage. The least of these cultivars was Aflak and Karkheh cultivars in the stage of hardening. Also, harvest time significantly affected germination percentage and seedling length of different wheat cultivars. The percentage of germination with accelerated grain harvest decreased significantly. In interaction, harvest time and cultivar had the highest percentage of seed germination (99%) to Chamran and Dehdasht cultivars and harvest at seedling stage. Reducing the percentage of germination and consequently reducing seedling length with accelerated seed harvesting in the dough step of hardening of the seeds resulted in reduced seed yield. In general, maximum germination and antioxidant content was obtained from harvesting stage at maturity stage. Chamran cultivar compared to other cultivars showed significant superiority in terms of traits. Manuscript profile

Open Access Article

6 - The interaction between irrigation interval with manure and vermicompost on vegetative characteristics and yield of Lemon Verbena (Lippia citriodora L.)
Zahra Shadkam1 Farhad Mohajeri 2*

This experiment was carried out to study the interaction between irrigation intervals with manures and vermicompost on vegetative characteristics and yield of Lemon Verbena a factorial experiment based on completely randomized design in Fasa, Iran during 2017. The first More

This experiment was carried out to study the interaction between irrigation intervals with manures and vermicompost on vegetative characteristics and yield of Lemon Verbena a factorial experiment based on completely randomized design in Fasa, Iran during 2017. The first factor involved irrigation intervals at four levels including two, four, six and eight days. The second factor was the utilization of vermicompost and/or livestock manure in four levels consisted of a control test, five percent manure (by weight), five percent vermicompost and 2.5% manure + 2.5% vermicompost which were added to the studied soil in pots. Water stress caused a significant decrease in the leaf relative water content and chlorophyll index of lemon verbena. The lowest ion leakage was obtained in vermicompost and manure and the highest amount of malondialdehyde in control test. In general, the results of this study showed that with increasing in drought stress a negative effect was observed on growth of Lemon Verbena which finally led to the reduction of biological yield. Also, the utilization of vermicompost and/or manure fertilizer have a  positive effect on plant growth and improved plant's growth characteristics. Manuscript profile

Open Access Article

7 - The effect of accelerated extinction and salinity on germination of weed seeds Malva neglecta, Echinochloa crus-galli and Sorghum halepense in laboratory conditions
Einollah Hesami

Weeds Malva neglecta, Echinochloa crus-galli and Sorghum halepense are weaned and weedy species in wheat, cane, rice, corn, sifiyat and gardens of northern Khuzestan. In order to determine the effects of salinity stress and moisture stress in conditions of burnout and e More

Weeds Malva neglecta, Echinochloa crus-galli and Sorghum halepense are weaned and weedy species in wheat, cane, rice, corn, sifiyat and gardens of northern Khuzestan. In order to determine the effects of salinity stress and moisture stress in conditions of burnout and exhaustion on germination ability of seeds and emergence of these weeds, a test was conducted in a Seed Technology Laboratory of Shushtar Islamic Azad University in a completely randomized factorial design with four replications Took In the first laboratory conditions, the first factor was seeds of weeds of canola, spruce and grass, and the second factor was burning treatments including: control (without burnout) and burnout days (three, five and seven days) and the third factor of salinity treatments (four, eight and 12 ds) Siemens / m and a salinity of 0.7 dS / m). The results of analysis of variance showed that among all studied traits (germination percentage, germination rate, germination uniformity index, seedling dry weight, Vigor index), there was a significant difference at probability level there was a percentage. Weed seeds of Malva neglecta were more successful in germination traits than other two weeds, and Echinochloa crus-galli weed seeds also had better reaction to burnout in the depositional traits. Weed seeds of Sorghum halepense showed the highest sensitivity to the other two weeds compared to the accelerated aging test. Therefore, burnout and salinity stress reduced all studied traits in these weeds. In general, it can be concluded that the burnout of seeds under conditions of salinity stress reduces the germination characteristics and weed deployment of weeds tested. Manuscript profile

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