scholarly journals Comparison of Response of Canola (Brassica napus L. cv Hyola 401) to Biofertilizer Inoculation in Optimal and Delayed Cropping Dates

2017 ◽  
Vol 9 (9) ◽  
pp. 192
Author(s):  
Esmaeil Yasari
Keyword(s):  
Brassica Napus ◽  
Seed Yield ◽  
Block Design ◽  
Percent Level ◽  
Control Treatment ◽  
Research Station ◽  
Phosphate Solubilizing Bacteria ◽  
Bacterial Strains ◽  
Bacterial Inoculation ◽  
Brassica Napus L

In order to compare the effects of phosphate solubilizing bacteria as biofertilizer and mineral phosphorous application in optimal date of sowing with delayed cropping date on canola (Brassica napus L.) growth and productivity, a split-plot experiment using randomized complete block design with three replications was conducted at Dasht-e-Naz Agronomy Research Station in 2014. Four levels of bacterial inoculation (Pseudomonas putida, Pseudomonas fluorescens, singly or in combination) were applied as main plots and five levels of mineral phosphorous application (0, 25, 50, 75, and 100 kg/ha of mineral phosphorous) were applied as sub plots. Canola plant were sown at two dates of sowing, one at optimal date of sowing (Sept. 30, 2014) and the other one month later as delayed cropping (Oct. 30, 2014). The results obtained showed that effects of bacterial inoculation on number of seeds per pod, number of pods on plant, and seed yield were significant at one percent probability level at both sowing dates. Moreover, rates of phosphate application had significant effects on all traits at one percent level. Comparing the means showed that application of mineral P resulted in substantial increase in seed yield. At optimal date of sowing, it was shown that while minimum seed yield obtained at control treatment (1600 kg/ha), the maximum (2980 kg/ha) obtained with interaction effects of application of both bacterial strains along with 75 kg/ha mineral P, having no statistically difference with that of P. fluorescence along with 75 kg/ha mineral P (2940 kg/ha). It was shown that delayed cropping resulted in decreasing canola growth which is reflected in seed yield and yield components. Minimum seed yield at control plot at first date of sowing (1600 kg/ha) decreased to 740 kg/ha in second date of sowing, showing 54% decrease. The maximum seed yield also decreased in delayed cropping, from 2980 kg/ha at Sept. 30, 2014 as compared to 1074 kg/ha at Oct. 30, 2014, showing a 64% decrease. The results obtained showed that an increase in P level, eventually enhanced the seed yield. This increasing trend continued until a threshold level (75 kg/ha of P), after which seed yield showed a declining fashion.

scholarly journals Comparison of Response of Canola (Brassica napus L. cv. Hyola 401) to Biofertilizer Inoculation in Optimal and Delayed Cropping Dates

2016 ◽  
Vol 49 (2) ◽  
pp. 53-66
Author(s):  
E. Yasari ◽  
S. Mozaffari ◽  
O. Ghasemi Chepi ◽  
S. Garousi ◽  
B. Bahrami ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Seed Yield ◽  
Block Design ◽  
Percent Level ◽  
Control Treatment ◽  
Research Station ◽  
Phosphate Solubilizing Bacteria ◽  
Bacterial Strains ◽  
Bacterial Inoculation ◽  
Brassica Napus L

Abstract In order to compare the effects of phosphate solubilizing bacteria as biofertilizer and mineral phosphorous application in optimal date of sowing with delayed cropping date on canola (Brassica napus L.) growth and productivity, a split-plot experiment, using randomized complete block design with three replications, was conducted at Dashate-Naz Agronomy Research Station, in 2014. Four levels of bacterial inoculation (Pseudomonas putida, Pseudomonas fluorescens, singly or in combination) were applied as main plots and five levels of mineral phosphorus (P) application (0, 25, 50, 75, and 100 kg·ha-1 of mineral phosphorous) were applied as sub plots. Canola plant were sown at two dates of sowing, one at optimal date of sowing (30 Sept., 2014) and the other one month later as delayed cropping (30 Oct., 2014). The results obtained showed that effects of bacterial inoculation on number of seeds per pod, number of pods on plant, and seed yield were significant at one percent probability level at both sowing dates. Moreover, rates of phosphate application had significant effects on all traits at one percent level. Comparing the means showed that application of mineral P resulted in substantial increase in seed yield. At optimal date of sowing, it was shown that while minimum seed yield obtained at control treatment (1600 kg·ha-1), the maximum (2980 kg·ha-1) obtained with interaction effects of application of both bacterial strains along with 75 kg·ha-1 mineral P, having no statistically difference with that of P. fluorescens, along with 75 kg·ha-1 mineral P (2940 kg·ha-1). It was shown that delayed cropping resulted in decreasing canola growth which is reflected in seed yield and yield components. Minimum seed yield at control plot at first date of sowing (1600 kg·ha-1) decreased to 740 kg·ha-1, in the second date of sowing, showing 54 % decrease. The maximum seed yield also decreased in delayed cropping, from 2980 kg·ha-1 at 30 Sept., 2014, as compared to 1074 kg·ha-1 at 30 Oct., 2014, showing a 64% decrease. The results obtained showed that an increase in P level, eventually enhanced the seed yield. This increasing trend continued until a threshold level (75 kg·ha-1 of P), after which seed yield showed a declining fashion.

scholarly journals Evaluation of Rapeseed (Brassica napus L.) maturity and productivity for accumulative temperature

Bionatura ◽  
2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Ziadoon M. Jaafar ◽  
Mahmood A. Ramadhan ◽  
Raghad S. Mouhamad ◽  
Rasha A Mussa ◽  
Buthaina A. Jassim ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Protein Content ◽  
Seed Yield ◽  
Agricultural Research ◽  
Block Design ◽  
Nutrient Content ◽  
Research Station ◽  
Brassica Napus L ◽  
Agricultural Research Station ◽  
Randomized Complete Block Design

Field experiment conducted during the winter agricultural season 2017-2018 at Al-Zafraniya Agricultural Research Station and Al-Tuwaitha Agricultural Research Station, according of Randomized Complete Block Design (RCBD) with three replications, to study maturity and productivity for accumulative temperature of rapeseed (Brassica napus L.). The experiment planting in Last week of September 2017 at Al-Zafraniya station and Last week of October 2017 at AL- Tuwaitha station. The results show increasing significantly in the yield (1110.11 kg. ha-1), percentage of oil (47.12 %), protein content in seeds (43.1%), carbohydrate (25.7%), nutrient content of seed (K, Ca) in Al-Zafraniya location; compared to Al-Tuwaitha location, yield (352.8 kg. ha-1), percentage of oil (41.1 %), protein content in seeds (41.2%), carbohydrate (26.2%), nutrient content of seed (Na, Ca, Mg, Fe) at fertilization, compared to no-fertilizer. It showed significant differences with nutrient content of soil (Na, Mg, Fe) for Al-Tuwaitha location and nutrient content of soil (K, Ca, Mg, Fe, S, Cu), pH, EC for Al-Zafraniya location at fertilization, compared to no-fertilizer. These results shows that the delay at time of cultivation leads to a decrease in seed yield, oil ratio, and percentage of protein in seeds, also high temperatures at seed filling stage leads decrease in seeds, oil and protein content.

scholarly journals Evaluation of the Effectiveness of Pod Sealants in Increasing Pod Shattering Resistance in Oilseed Rape (Brassica napus L.)

Energies ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 2256 ◽  
Author(s):  
Dainius Steponavičius ◽  
Aurelija Kemzūraitė ◽  
Laimis Bauša ◽  
Ernestas Zaleckas
Keyword(s):  
Brassica Napus ◽  
Oilseed Rape ◽  
Seed Yield ◽  
Weather Conditions ◽  
Control Treatment ◽  
Yield Losses ◽  
Brassica Napus L ◽  
Pod Shattering ◽  
Seed Loss ◽  
Net Profit

Shattering of pods of oilseed rape (Brassica napus L.) is a major cause of seed yield losses prior to and during harvesting. In order to reduce shattering, researchers have been engaged in the development of special preparations that are known as pod sealants (PS). Despite the fact that there are already developed and commercialized PSs that have only been effective on seed yield preservation under certain environmental conditions, there is still a need to create a more versatile and efficient PS. Currently, the most promising method of controlling pod shattering in oilseed rape is the application of our developed novel acrylic- and trisiloxane-based pod sealant (PS4). The effectiveness of PS4 and three commercial pod sealants (PS1, PS2, and PS3) was assessed in this comparative study. By spraying an oilseed rape crop with PS4, natural seed loss can be reduced by 20–70%, depending on the prevailing weather conditions, and loss of seeds during harvest can be reduced by more than three-fold compared with that by the control treatment. Thus, the overall results demonstrated that by applying a novel pod sealant (PS4) to oilseed rape crops 2 weeks before harvest can increase the net profit margin by €30–€150 ha−1. The life cycle assessment showed that during 2014–2016 oilseed rape cultivation, the largest effect on global warming emission (kg CO2 eq) reduction was experimental sealant PS4, i.e., approximately 17% compared to the control.

scholarly journals Biological and Chemical Phosphorus Fertilizers Effect on Yield and P Accumulation in Rapeseed (Brassica napus L.)

2012 ◽  
Vol 40 (2) ◽  
pp. 210 ◽  
Author(s):  
Hamid MADANI ◽  
Mohammad Ali MALBOOBI ◽  
Kioomars BAKHSHKELARESTAGHI ◽  
Agnieszka STOKLOSA
Keyword(s):  
Seed Yield ◽  
Block Design ◽  
Ammonium Phosphate ◽  
Phosphate Fertilizer ◽  
Fertilizer Application ◽  
Interaction Effects ◽  
Brassica Napus L ◽  
Sowing Time ◽  
Plant Seed ◽  
Plant Seed Oil

A field experiment was conducted for investigation of different phosphorus fertilizer sources and their importance in rapeseed farms on 2007 at Arak, Iran. Ammonium phosphate fertilizer with 50% P2O5 (APF) was as chemical phosphorus sources with 3 rates of application and Phosphor solublizing bacteria (PSB) was as biological phosphorus surcease in 4 levels. Experiment was factorial arrangement in randomized complete block design with 3 replications. APF levels were control (AP0), 125kg/ha APF (AP1) and 250kg/ha (AP2) application and PSB levels were, control (PSB0), PSB at sowing time only (PSB1), PSB as top dress fertilizer after over wintering only (PSB2) and PSB at dual fertilizing in sowing time and also after over wintering (PSB3). The statistical analyses were showed that the PSB3 treatment was a great treatment for increasing seed yield. The heist rate of seed yield was recorded at 9.9t/ha under dual fertilizing in sowing time and after rosette over wintering stage. The interaction effects of phosphorus solublizing bacteria and ammonium phosphate fertilizer application had not significant effect on plant height, biomass yield, number of silique per plant, seed oil percent and seed yield. Interaction effects of phosphorus solublizing bacteria and ammonium phosphate fertilizer application were significant for plant tissues phosphorus content.

scholarly journals Effects of Iron and Zinc Spray on Yield and Yield Components of Wheat (Triticum Aestivum L.) in Drought Stress

2013 ◽  
Vol 46 (1) ◽  
pp. 23-32 ◽  
Author(s):  
F. Monjezi ◽  
F. Vazin ◽  
M. Hassanzadehdelouei
Keyword(s):  
Drought Stress ◽  
Seed Yield ◽  
Yield Components ◽  
Block Design ◽  
Control Treatment ◽  
Yield Reduction ◽  
Irrigation Level ◽  
Seed Filling ◽  
Yield And Yield Components ◽  
Iron And Zinc

Abstract In hot and arid regions, drought stress is considered as one of the main reasons for yield reduction. To study the effect of drought stress, iron and zinc spray on the yield and yield components of wheat, an experiment was carried out during the crop seasons of 2010 and 2011 on Shahid Salemi Farm in Ahwaz as a split factorial within randomized complete block design with three replications. The main plots with irrigation factor and three levels were considered: Level A) full irrigation, Level B) stopping irrigation at pollination step, and Level C) stopping irrigation at the seed filling stage. Subsidiary plots were considered with and without iron and zinc spray. Influencing the seed filling process, in interaction with iron, wich is an important leaf's chlorophyll cation, zinc increased the seed yield. The drought stress reduced the thousand kernels weight (TKW) and the number of seeds per spike increased about 24% and 8.5% more than the one of control treatment, respectively. Using iron, as compared with control treatment, causes the increase of thousand kernels weight from 45.71 to 46.83 grams and the increase of spike from 49.51 to 51.73. Zinc spray increased seed yield and thousand kernels weight. The results obtained from the present research showed that iron and zinc spray has fairly improved the effects caused by drought stress.

scholarly journals IMPACT OF PLANT GROWTH INHIBITORS ON THE GROWTH AND YIELD OF SORGHUM

2021 ◽  
Vol 52 (6) ◽  
pp. 1431-1440
Author(s):  
N. M. Abood ◽  
E. M. SHALAL ◽  
M. I. HAMDAN
Keyword(s):  
Plant Growth ◽  
Dry Matter ◽  
Agricultural Research ◽  
Block Design ◽  
Growth And Yield ◽  
Control Treatment ◽  
Research Station ◽  
Dry Matter Yield ◽  
Growth Inhibitors ◽  
Plant Growth Inhibitors

Field experiment was carried out during the spring and fall seasons of 2019 at the Abu Ghraib Research Station of the Agricultural Research Office/ Ministry of Agriculture, was aimed to investigate the effect of plant growth inhibitors on growth and yield of several sorghum varieties .Randomized Complete Block Design within split plot arrangement with three replications was used. The main plot consists of three growth inhibitors (Cycocel, Ethiphon, and Mebiquat), which were added at stages six and eight leaf stage, in addition to the control treatment (distilled water only), the sub plot was included three cultivars (Mabrouk, Buhooth 70 and Giza 113). The results showed in both seasons significant interaction between cultivars and growth inhibitors in most of the studied traits. The plants of the variety Giza 113 sprayed with Ethiphon recorded the lowest period of reaching physiological maturity, the highest average dry matter yield, and the highest weight of 1000 grains (89.00 days, 17.32 ton ha-1, and 39.33 gm) respectively. The same variety recorded the highest content of chlorophyll in the leaves and the highest grain yield due to the effect of Mebiquat (49.50 spad, 3.93 ton ha-1. The cultivar Buhooth 70 with the effect of Cycocel achieved the highest average of dry matter yield of 33.27 ton ha-1.

scholarly journals The Effect of Amino Acids and The Date of Planting on Yield and Some Yield Components of Three Maize Varieties

2021 ◽  
Vol 904 (1) ◽  
pp. 012066
Author(s):  
Y A Al-Janabi ◽  
N M Abood ◽  
M I Hamdan
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Agricultural Research ◽  
Block Design ◽  
Control Treatment ◽  
Research Station ◽  
Spring Season ◽  
Planting Dates ◽  
Maize Varieties ◽  
Biological Yield

Abstract The experiment was carried out according to the randomized complete block design (R.C.B.D) and the arrangement of split-split plot with three replications, at the Field Crops Research Station of the Agricultural Research Department - Abu Ghraib during the spring season for the years 2019 and 2020. With the aim of studying the effect of amino acids, planting dates and their effect on some of the yield characteristics and its components for three varieties of maize in the spring season. Planting dates (March 15, March 25 and April 5) occupied the main plots, while amino acids and the control treatment (proline, arginine, and distilled water) occupied the sub-plot, whereas the varieties (Rabi, Baghdad 3 and Fajr 1) occupied the sub-sub-plot, and the most important results were summarized as follows:The two cultivars, Rabi and Fajr-1, achieved a significant increase in most of the yield characteristics and its components for the seasons. The addition of the amino acid proline also led to a significant increase in most of the studied traits (the number of grains in ear, weight of 500 grains, total grain and biological yield, and harvest index), planting dates also have a significant effect on most of the studied traits. The first date (15/3) recorded increase in the number of grains per ear, the weight of 500 grams, and the grain and biological yield. The plants of the Rabi variety when cultivated on March 15 th and sprayed with the amino acid proline achieved the highest average for the grain yield, which reached 7.48 ton. ha-1 for spring 2019.

scholarly journals Effect of Iron on Yield of Corn (Zea mays L.) in Drought Stress

2019 ◽  
Vol 52 (1) ◽  
pp. 34-43
Author(s):  
K. Rafsanjani ◽  
A. Madani ◽  
F. Vazin
Keyword(s):  
Drought Stress ◽  
Seed Yield ◽  
Arid Regions ◽  
Block Design ◽  
Control Treatment ◽  
Yield Reduction ◽  
Pan Evaporation ◽  
Randomized Complete Block Design ◽  
Four Levels ◽  
Number Of Seeds

Abstract In hot and arid regions, drought stress is considered as one of the main reasons for yield reduction. To study the effect of drought stress, iron spray on the yield and yield components of corn, an experiment was carried out during the crop seasons of 2013 on research Farm in Faizabad of Iran, as a split plot within randomized complete block design with three replications. The main plots with irrigation factor and four levels were considered: level A) 50 ml evaporation from pan evaporation; level B) 100 ml evaporation from pan evaporation; level C) 150 ml evaporation from pan evaporation and level D) 200 ml evaporation from pan evaporation. Sub plots were considered with iron spray in three levels, included level A) 80 g/ha, level B) 130 g/ha and level C) 180 g/ha. The drought stress reduced seed yield, the 1000-kernels weight (TKW), the number of seeds per ear, the number of seeds per row in ear, the number of rows per ear about 39%, 6%, 31%, 14% and 27% less than control treatment, respectively. Using iron, as compared with control treatment, causes the increase of 1000-kernels weight from 295 to 311 g and the increase of seed yield from 5188 to 7078. The results obtained from the present research showed that iron spray has fairly improved the effects caused by drought stress.

scholarly journals ECONOMIC PROFITABILITY OF THE UTILIZATION OF HOMEMADE ORGANIC PESTICIDE FOR SMALL SCALE PRODUCTION OF Brassica Napus L. Varchinensis (PECHAY)

2019 ◽  
Vol 7 (6) ◽  
pp. 56-66
Author(s):  
Steven A. Loneria ◽  
Eunice L. Lluz
Keyword(s):  
Brassica Napus ◽  
Insect Pests ◽  
Block Design ◽  
Post Treatment ◽  
Small Scale ◽  
Hot Pepper ◽  
Scale Production ◽  
Brassica Napus L ◽  
Effective Level ◽  
Pre Treatment

The study focused on the economic profitability of the utilization of homemade organic pesticide for small scale production of Brassica napus L. varchinensis (Pechay). An experiment was undertaken at the Palayamanan Program at the University of Eastern Philippines to determine the effectiveness of homemade organic pesticide in controlling or preventing insect infestation in Pechay, to find out the effective level of this homemade pesticide and to determine the economic profitability of using homemade organic pesticide and insecticide. To explore the use of homemade extract from garlic, Allium sativum L., hot pepper, Capsicum frutescens L., vinegar and mineral oil in the management of insect pests of Pechay. The design used was the randomized complete block design (RCBD) and the data gathered were statistically analyzed using ANOVA and DMRT at 5% level of significant. There were five treatments made up of 50% extracted organic insecticide diluted in 500ml and 1 litter of water  treatment before the insects will attack (pre–treatment) in weekly intervals and separate application of the same formulation of  the treatment after the insect will attack (post-treatment) two days interval and control without any treatment. The result of the study showed that those that gained higher profitable weight in treatment plots were the post – treatment.

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