scholarly journals REGULATION OF TILLERING IN WHEAT AND ITS RELATIONSHIP WITH GRAIN YIELD 1.CONTRIBUTION PERCENTAGES OF THE MAIN STEM AND PRIMARY TILLERING THE NUMBER OF SPIKES AND GRAIN YIELD

2017 ◽  
Vol 48 (2) ◽  
Author(s):  
Mahmood & Al- Hassan
Keyword(s):  
Grain Yield ◽  
Winter Season ◽  
Factorial Experiment ◽  
Main Stem ◽  
Seeding Rate ◽  
College Of Agriculture ◽  
Total Contribution ◽  
Nitrogen Levels ◽  
N Level ◽  
Two Factors

A Factorial experiment was conducted at the experimental farm of Field Crop College of Agriculture University of Baghdad winter Season of 2014-2015. The study was aimed to investigate the effect of seeding rates and nitrogen levels on regulation of tillering in wheat and its relationship with grain yield and components. Treatments were distributed in the Factorial experiment within Randomized Complete Black Design with three replicates and four seeding rates 60,80,100 and 120 kg ha-1 and fertilized with four nitrogen levels 50,100,150 and 200 kgN.ha-1. The results showed that there were significant differences within two factors and their interaction on the number of spikes and grain yield. Main stem produced the highest number of Spike 210.00 spike.m-2, and grain yield 3.050 tan ha-1 compared to primary tillers (tiller1,tiller2,tiller3). Concerning the seeding rate 80 kg ha-1 resulted in the highest number of Spike.m-2  363 spike and Grain yield 4.775 tan.h-1 compared to other seed rates. The N level 150 kg ha-1 gave the highest number of spikes 382 spike and grain Yield 4.919 tan.h-1 compared to other N levels. The percentage of contribution main stem 50.82, 64.57 % respectively compared to the tillers (tiller1, tiller2, tiller3) which amounted to 32.55, 12.80 and 3.80 % respectively in the spikes number, and 26.02, 7.90 and 1.33 % respectively in grain yield. It could be conclude that the total contribution of the primary tillers percentages represents a half the total number of spikes within two factors of study, while the total contribution percentages of primary tillers is amounted to half the main stem contribution in the grain yield within two factors of study.

scholarly journals REGULATION OF TILLERING IN WHEAT AND ITS RELATIONSHIP WITH GRAIN YIELD 2. CONTRIBUTION PERCENTAGES OF THE MAIN STEM AND PRIMARY TILLERS IN THE NUMBER OF SPIKELET AND GRAIN NUMBER AND WEIGHT OF 1000 GRAINS.

2017 ◽  
Vol 48 (2) ◽  
Author(s):  
Mahmood & Al- Hassan
Keyword(s):  
Grain Yield ◽  
Grain Weight ◽  
Factorial Experiment ◽  
Main Stem ◽  
Seeding Rate ◽  
Grain Number ◽  
Total Contribution ◽  
Nitrogen Levels ◽  
Two Factors ◽  
1000 Grain Weight

A Factorial experiment were conducted at the experimental  farm of Field Crop College of Agriculture University of Baghdad Jadiria the winter Season of 2014-2015. This study was aimed to investigate the effect of seeding rates and nitrogen levels on Regulation of tillering in wheat and  its relationship with grain yield and it's components. Treatments were distributed in Factorial experiment within Randomized Complete Black Design (RCBD) with three replicates and with four seeding  rates (60,80,100 and 120 kg.ha-1) and fertilized with four nitrogen levels (50,100,150 and 200 kgN.ha-1). The results showed that there were significant differences between two factors of study and their interaction on the number of spiklet, grain number and 1000 grain weight during the growing season. Main stem produced the highest average of spiklet number 19.23 spiklet.spike-1, grain number 46.82 grain.spike-1 and 1000 grain weight 41.739 compared to other primary tillers (tiller1,tiller2,tiller3). Concerning the seeding rate 60 kg.ha-1 resulted in the highest average of spiklet number 16.24 spiklet.spike-1, grain number 32.95 grain.spike-1 and 1000 grain weight 27.52 compared to other seed rates. The N level 100 kg.ha-1 gave the highest average of spiklet number 16.49 spiklet.spike-1, grain number 32.95 grain.spike-1 and 1000 grain weight 27.52 compared to other N levels. The Main Stem and Primary Tillers contribution Differed in the Number of Spiklet, Grain Number and 1000 grain weight between the factors of study, where the percentage contribution of main stem 31.65, 38.26 and 37.28 % respectively compared to the tillers (tiller1, tiller2, tiller3) which amounted to 27.43, 24.79 and 16.14 % respectively in the spiklets number, 28.00, 23.36 and 10.38 % respectively in grains number and 31.80, 20.37 and 10.56 % respectively in 1000 grain weight. We conclude that the total contribution of the primary tillers percentages in the Number of Spiklet, Grain Number and 1000 grain weight Exceeds the contribution of main stem an increase of 53.69 and 38.03 and 40.56 % respectively within two factors of study.

scholarly journals Diallelic analysis for lysine and oil contents in maize grains

2009 ◽  
Vol 66 (2) ◽  
pp. 204-209 ◽  
Author(s):  
Leonardo Oliveira Medici ◽  
Salete Aparecida Gaziola ◽  
Vanderlei Aparecido Varisi ◽  
José Antonio Carmezini de Paula ◽  
Renato Rodrigues Ferreira ◽  
...  
Keyword(s):  
Grain Yield ◽  
Combining Ability ◽  
Oil Content ◽  
General Combining Ability ◽  
Lysine Content ◽  
Nitrogen Levels ◽  
N Level ◽  
Complete Series ◽  
Selection For ◽  
Selection Of

Six S5 lines of maize, with differences for lysine and oil contents in grains, were used to carry out a complete series of diallelic crosses. The resulting 15 hybrids were grown in a field at two nitrogen levels (10 and 130 kg N ha-1). The general combining ability (GCA) and specific combining ability (SCA) were obtained by using the method 4, model I of Griffing for grain yield, and grain lysine and oil contents. Significant (p < 0.001) interaction was observed between GCA and N levels for grain yield, indicating the selection of different lines for each N level. This interaction was not significant for lysine content, but there were significant effects of GCA for this trait at both N levels (p < 0.1). Significant effects were not observed for GCA or SCA for oil content, however a positive correlation was observed between lysine and oil contents in the hybrids, in the lines and even in the control cultivars. The results indicate the effectiveness of selection for lysine content, irrespective of N level, in the studied non-opaque maize lines, and the possibility of achieving both high lysine and oil content in grains.

scholarly journals THE EFFECT OF MOWING DATES AND DIFFERENT NITROGEN LEVELS ON YIELD CHARACTERISTICS OF BARLEY (HORDEUM VULGARE L.)

2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
Mohammed Salim Talib ◽  
Hasan Najim. Mansoor ◽  
Hayder Hilal abbas AL-Khafaji ◽  
Hayder Hilal abbas AL-Khafaji ◽  
Hayder Hilal abbas AL-Khafaji ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Grain Yield ◽  
Block Design ◽  
Winter Season ◽  
Hordeum Vulgare L ◽  
Nitrogen Levels ◽  
Randomized Complete Block Design ◽  
Green Fodder ◽  
Biological Yield ◽  
Nitrogen Percentage

A field experiment was carried out during the winter season 2014/2015 in one of the fields of Abi Gharq district, located 10 km west of the Babylon governorate. The randomized complete block design was used under split-plots arrangement with three replications. The main plots were included levels of nitrogen fertilizer (without fertilizer, 50, 100, 150 N, 200, 250 kg). while the sub-plots were included (without a mower, a mower after 45 days, a mower after 65 days, a mower after 85 days) after planting, The data were taken and analyzed according to the used design and the averages were tested according to the LSD test, and the results were summarized as follows: The date of mowing C1 (mower after 45 days of planting) was significantly higher by giving the highest average for the degree of fallowness and the index of harvest, and the percentage of nitrogen in the green fodder was 3.647, 37.63% and 1.837%, respectively. Treatment C0 (without mower) outperformed significantly by giving it the highest average of biological yield, grain yield and nitrogen percentage in grains, as it gave 15,114 tons. H-1 and 5.73 tons. H-1 and 1.242%, respectively The fertilizer level N5 (250 kg N. H-1) gave the highest average of the degree of lying, biological yield, grain yield, nitrogen percentage in green fodder and nitrogen content in grains, as it gave 3.854% and 7.571 tons. H-1 and 6.20 tons. % And 1.397%, respectively, We conclude from the results of the study that lack of without cutting to a significant increase in the degree of resting, biological yield and grain yield, and we conclude that the high levels of nitrogen led to a significant increase in the degree of lying, biological yield, grain yield, and the proportion of nitrogen in green fodder and grains

scholarly journals The Effect of Organic Fertilizer and Nitrogen Fertilizer on the Growth of Wheat Growing in Salt Soil

2018 ◽  
Vol 7 (1) ◽  
pp. 114-119
Author(s):  
B. R. Al-Bandawy ◽  
H. H. Al-Alawy
Keyword(s):  
Nitrogen Fertilizer ◽  
Flag Leaf ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
College Of Agriculture ◽  
Nitrogen Levels ◽  
The Third ◽  
Two Factors ◽  
Number Of Seeds ◽  
Salt Soil

Field experiment is conducted at the college of Agriculture - University of Diyala to study the effect of two factors : organic fertilizerand nitrogen fertilizer on the grow and productivity of wheat that grow in salt soil (10 dS m-1), two levels of organic fertilizer were used(2 and 4 t h-1 ) and three levels of nitrogen were used(0, 50 and 100 kg h-1). Result showthat both of organic fertilizer and nitrogen levels have significantly effect on agronomy and productivity attributes of wheat, interaction between the second level of organic fertilizer and the third level of nitrogen is the best result in plant height 75.9 cm, tillers 7.1, flag leaf area 31.4 cm2, dry weight of shoot 365 g, spike weight 3.36 g, number of spikes/ m2 203, number of seeds in the spike 36.9 and the weight of 100 seeds 11.22 g are significantly differences in other treatments.  

scholarly journals Study of Yield and its Components for Several Genotypes of Durum Wheat (Triticum Durum L.) Newly Derived Under Three Seeding Rate in the Conditions of Anbar Governorate

2021 ◽  
Vol 904 (1) ◽  
pp. 012031
Author(s):  
M J H Al-Hiti ◽  
M A G Al-Ubaidi
Keyword(s):  
Grain Yield ◽  
Durum Wheat ◽  
Rural Areas ◽  
Significant Interaction ◽  
Sandy Loam ◽  
Winter Season ◽  
Seeding Rate ◽  
Plant Densities ◽  
Loam Soil ◽  
Main Plot

Abstract A field experiment was carried out in a farmer’s field in Zakhikha which is one of the rural areas of western Heet City (about 15 kg) in Anbar Governorate, during Winter season 2020-2021, with sandy loam soil, to study seven newly derived genotypes from durum wheat, including two cultivars. They are registered, certified, and commonly cultivated in Iraq, under three seeding rate to select the ones that are suitable for the conditions of Anbar Governorate. Randomized complete blocks design (RCBD) was used in a split plot arrangement with three replications. The experiment included three Seeding rate (140, 160 and 180 kg ha-1) that represented the main plot, whereas the sub plots were occupied by seven genotypes (Latifia, Babel-30, Babel-31, Babel-32, Babel-86, and the two approved varieties Dour-29 and Dour-85). The results of the study showed that Babel-32 outperformed the rest of significant effect genotypes with highest average number of spikes (507.6 spike m-2) and grain yield (8.741 Mg ha-1), while the genotype Babel-86 was superior in weight of 1000 grain (55.89 g), and the cultivar (Dour-29) outperformed for the trait of number of grains per spike (39.15 grains spike-1). A significant effect of plant densities appeared in the studied traits, as the plants grown at seeding rate (180 kg ha-1) recorded the highest average in the trait of number of spikes m-2 (506.2 spike m-2) and grain yield (8.898 Mg ha-1) And the percentage of protein (11.89%). While planting plants at seeding rates (140 kg ha-1) led to the highest rate of number of grains per spike (38.42 grains) and 1000 grains weight (52.71 g). There was a significant interaction between genotypes and Seeding rate.

scholarly journals RESPONS OF BREAD WHEAT YIELD AND IT,S COMPONENTS TO BORON AND VITAMIN C FOLIAR APPLIED

2016 ◽  
Vol 47 (5) ◽  
Author(s):  
Al-Hilfy & Zeboon
Keyword(s):  
Vitamin C ◽  
Grain Yield ◽  
Bread Wheat ◽  
Yield Components ◽  
Wheat Yield ◽  
Triticum Aestivum L ◽  
College Of Agriculture ◽  
Field Crops ◽  
Two Factors ◽  
Spike Number

Field experiment was conducted during 2010 – 2011 and 2011 – 2012 winter seasons at the Experimental Farm, Department of Field Crops, College of Agriculture University of Baghdad. RCBD design with four replications were used to study the effect of Boron and vitamin C foliar applied on yield and some it,s components of bread  wheat Triticum aestivum L. cv. Abu – Ghraib-3. The experiment involved two factors ,the first was boron foliar in five concentrations  0,100, 200, 300, 400 mg L-1  the second was vitamin C foliar applied in five concentrations 0,1,2,3,4, gmL-1 at booting stage. Results of the experiment showed :300 mg B L-1 was  superior in grain yield 6.726,6.771 Mg ha-1)   for both seasons and some yield components ( spike number for the second season 574.9 spike m-2 , fertility 97.27% 97.34% and number of grain 66.39 , 65,22 grain spik-1 ) for both seasons . Foliar of Vitamin C with 4 gm L-1 was significantly affected grain yield (6.820 , 6.879 Mg ha-1 ) for both seasons respectively . Foliar of Vitamin C with 4 gm L-1 was significantly affected on grain yield and some it,s components (6.820 , 6.878 Mg ha-1 ) as compared to control which gave (4.882 ,4.906 Mg ha-1) for both seasons, respectively .The interaction between two factors was significant in some characters ( number of spike and grain yield ).

EFFICACY OF AZOTOBACTER INOCULATION UNDER GRADED DOSES OF NITROGEN FERTILIZER IN RELATION TO GROWTH, YIELD AND NITROGEN UTILIZATION EFFICIENCY OF OAT (Avena sativa L.)

2000 ◽  
Vol 48 (2) ◽  
pp. 165-170 ◽  
Author(s):  
D. Jatasara ◽  
D. Rana ◽  
R. Sheoran
Keyword(s):  
Grain Yield ◽  
Winter Season ◽  
Growth Yield ◽  
Nitrogen Utilization ◽  
Utilization Efficiency ◽  
Straw Yield ◽  
Nitrogen Levels ◽  
Pooled Data ◽  
Nitrogen Utilization Efficiency ◽  
Plot Design

A field experiment was conducted at CCS Haryana Agricultural University, Hisar, India during the winter season for three consecutive years from 1995–96 to 1997–98 to study the effect of different nitrogen levels and Azotobacter inoculation on the growth, grain yield and nitrogen utilization efficiency of two varieties of oat. The experiment was laid out in a split-plot design with three replications. The results revealed that oat variety JHO-822 was superior to OS-7 for grain yield. However, the variety OS-7 produced a higher straw yield than JHO-822. Increasing levels of nitrogen up to 60 kg/ha significantly increased the grain and straw yields over the lower doses on a pooled data basis. Nitrogen application also had a beneficial effect on the yield attributing traits of oat. Nitrogen utilization efficiency was highest at 60 kg N/ha and declined thereafter. Azotobacter inoculation was found beneficial in terms of increased grain and straw yield and higher nitrogen utilization efficiency over the uninoculated treatments.

scholarly journals Effect of weather parameters on growth stages of winter maize explain the grain yield

2021 ◽  
Vol 4 ◽  
Author(s):  
Pramod Prasad Dahal ◽  
Komal Bahadur Basnet ◽  
Shrawan Kumar Sah ◽  
Tika Bahadur Karki
Keyword(s):  
Grain Yield ◽  
Winter Season ◽  
Weather Condition ◽  
Growth Stages ◽  
Maize Crop ◽  
Maize Production ◽  
Nitrogen Levels ◽  
Seed Inoculation ◽  
Hybrid Maize ◽  
Different Growth Stages

A study was conducted on research farm of National Maize Research Program (NMRP), Rampur, Chitwan, Nepal during winter season of 2015/16 laid out in split-split plot design with three replications consisting of two FYM levels (FYM at 10 t ha-1 and no FYM application), three nitrogen levels (100, 75 and 50% N of recommended dose P and K remaining constant) and two levels of seed inoculation (Azotobacter chrococcum seed inoculation and no inoculation) with Rampur-2 maize hybrid in Nepal. One of the major factor affecting maize production is weather and this paper is prepared to assess the suitability of weather condition at different growth stages of winter season hybrid maize in condition of western Chitwan, Nepal at NMRP. The result shows that the requirement of the maize crop during different growth stages i.e. temperature, rainfall, relative humidity were fulfilled which helped to obtain remarkably higher grain yield (4.26 t ha-1) in the experiment compared to average national grain yield (2.84 t ha-1) of maize

scholarly journals EFFECT OF NITROGEN LEVELS AND APPLICATION SCHEDULING ON THE GROWTH AND YIELD OF MAIZE

2020 ◽  
Vol 1 (2) ◽  
pp. 42-52
Author(s):  
Keyword(s):  
Grain Yield ◽  
Leaf Area ◽  
Plant Height ◽  
Field Trial ◽  
Biomass Yield ◽  
Growth And Yield ◽  
Yield Traits ◽  
N Application ◽  
Nitrogen Levels ◽  
N Level

A field trial was conducted to assess the effect of Nitrogen (N) levels and application scheduling on the growth and grain yield of maize. The results revealed that growth and grain yield traits of maize were influenced significantly (P<0.01) due to different Nitrogen (N) levels and application schedule. Crop fertilized with the highest Nitrogen (N) level of 180 kg per ha resulted from 185.07 cm plant height, 11.94 leaves per plant, 473.92 cm leaf area per plant, 1.73 cobs per plant, 347.91 grains per cob, 15650.33 kg biomass yield and 3030.28 kg grain yield per ha. The crop receiving Nitrogen (N) at the rate of 120 kg per ha gave 177.67 cm plant height, 10.91 leaves per plant, 464.44 cm leaf area per plant, 1.60 cobs per plant, 237.04 grains per cob, 14241.80 kg biomass yield and 2762.30 kg grain yield per ha; while lowest Nitrogen (N) rate of 60 kg per ha resulted from 170.26 cm plant height, 9.89 leaves per plant, 455.15 cm leaf area per plant, 1.47 cobs per plant, 307.41 grains per cob, 13672.13 kg biomass yield and 2541.32 kg grain yield per ha. The effect of the scheduling of Nitrogen (N) application suggested that Nitrogen (N) applied in four equal splits, 25% each, 14, 28 and 42 days after emergence (DAE) ranked 1st.

SEEDING RATE EFFECTS ON LOW-TILLERING SPRING WHEATS IN A SEMIARID ENVIRONMENT

1990 ◽  
Vol 70 (1) ◽  
pp. 9-17 ◽  
Author(s):  
P. HUCL ◽  
R. J. BAKER
Keyword(s):  
Grain Yield ◽  
Maximum Yield ◽  
Triticum Aestivum L ◽  
Field Trials ◽  
Main Stem ◽  
Seeding Rate ◽  
Grain Yields ◽  
Rate Effects ◽  
High Tillering ◽  
Plot Design

To determine if increased seeding rates would alter relative yields of traditional and low-tillering genotypes, a high-tillering (Neepawa), a low-tillering (Siete Cerros), and an oligoculm (M1417) spring wheat (Triticum aestivum L.) genotype were seeded in replicated field trials at two locations in 1984 and 1985. A four-replication split-plot design, with genotypes assigned to main plots and seeding rates (40, 80 160, 320 and 640 seeds m−2) to subplots, was used for each experiment. Grain yield and its components were measured on individual plots or on main stems of five plants in each plot. All three genotypes expressed maximum yield at the same seeding rate (640 seeds m−2 in 1984 and 320 seeds m−2 in 1985) in the semiarid conditions of these experiments. Despite diverse tillering habits, the relative yields of these three genotypes could not be altered by changing seeding rates. On average, Siete Cerros (low-tillering) yielded 15% more than Neepawa and 17% more than M1417. Neepawa had lower grain yields than M1417 at all seeding rates in 1984, but higher grain yields in 1985. A similar change in relative performance of these two genotypes was observed for harvest index of the main stem but not for main stem grain yield kernels spike −1 on the main stem or kernel weight.Key words: Wheat (spring), oligoculm, yield components, genotype-environmental interaction.

Sign in / Sign up

Export Citation Format

Share Document