scholarly journals Evaluation of different wheat cultivars under salinity stress

2018 ◽  
Vol 10 (1) ◽  
pp. 479-481
Author(s):  
Balkaran Singh Sandhu ◽  
Nirmaljit Singh Dhaliwal
Keyword(s):  
Grain Yield ◽  
High Salinity ◽  
Unit Area ◽  
Triticum Aestivum L ◽  
Well Water ◽  
Wheat Cultivars ◽  
Experimental Site ◽  
Saline Irrigation ◽  
Salinity Condition ◽  
Very High

A field experiment was conducted to study the response of different 11 wheat (Triticum aestivum L.) cultivars under saline condition and by applying saline irrigation water during rabi 2016-17 at Krishi Vigyan Kendra, Sri Muktsar Sahib (Punjab). Experiment site was chosen with high salinity condition (EC=1.87 dS/m) to check the response of particular cultivars in these conditions. The field was only irrigated with tube well water having very high EC (4630 micro mhos/cm). Results showed that the grain yield was recorded higher in KH 65 (5648 kg/ha), KRL 210 (5440 kg/ha), KRL 386 (5290 kg/ha) and DBW 246 (5048 kg/ha) as compared to lower grain yield recorded with KRL 384 (4353 kg/ha), KRL 19 (4423 kg/ha), KRL 370 (4538 kg/ha), DBW 248 (4608 kg/ha),WH 1316 (4838 kg/ha), DBW 247 (4860 kg/ha) and KRL 377 (4895 kg/ha). The experimental site was slightly saline in nature, so the cultivar KH 65, KRL 210, KRL 386 and DBW 246 are very suitable for the area as these were less affected due to salinity. Grain yield among these varieties were higher due higher number of effective tiller per unit area and due to large number of grains per ear. Whereas, KH 65, KRL 377 and KRL 386 also produced significantly higher straw yield from WH 1316, DBW 248, DBW 247, KRL 210, KRL 384, DBW 246, KRL 370 and KRL 19.

scholarly journals Variability of Number of Spikes per Unit Area and Grain Yield Effected by Different Sowing Densities оf Winter Wheat (Triticum aestivum L.)

2017 ◽  
Vol 18 (2) ◽  
pp. 131
Author(s):  
Danijela Kondić ◽  
Maja Bajić ◽  
Đurađ Hajder ◽  
Desimir Knežević
Keyword(s):  
Grain Yield ◽  
Yield Components ◽  
Unit Area ◽  
Specific Area ◽  
Triticum Aestivum L ◽  
First Year ◽  
Wheat Cultivars ◽  
Wheat Genotype ◽  
Growing Seasons ◽  
Banja Luka

The sowing density of wheat is important for expression of number of spikes per unit area, grain yield as well as other yield components. The aim of this work is investigation of variability of grain yield and number of spikes per unit area influenced by different sowing densities under different environmental conditions. Three wheat genotypes NS 40, Prima and Nova Bosanka were studied at seven different sowing densities (384, 424, 451, 504, 544, 588 and 604 seeds m-2) with four replications on experimental plot of one m2 on field experiment in agro‒ecological conditions of Banja Luka during two successive growing seasons. In all studied wheat cultivars, the lowest number of spikes m-2 and the lowest grain yield were found on variant of lowest sowing density (384 seeds m-2), while the highest number of spikes m-2 and the highest grain yield were found on variant of 588 seeds m-2 in both years. The wheat genotype NS 40S had the highest number of spikes m-2, while Nova Bosanka had the lowest at all variants of sowing densities in both years. Mainly, at all variants of sowing densities, the highest values of analyzed traits were expressed in first year of experimental investigation. Depending of year and variant of sowing density the highest grain yield were found in NS 40 and Prima, while the lowest grain yield had Nova Bosanka in both years of experiment. In general, the recommended wheat sowing rates should be confirmed in the specific area of production and for the specific genotype.

scholarly journals Response of wheat cultivars to foliar potassium fertilization under irrigated saline environment

2016 ◽  
Vol 8 (1) ◽  
pp. 429-436 ◽  
Author(s):  
M. Kumar ◽  
A. Sarangi ◽  
D. K. Singh ◽  
A.R. Rao ◽  
S. Sudhishri
Keyword(s):  
Grain Yield ◽  
Foliar Application ◽  
Wheat Cultivars ◽  
Salt Tolerant ◽  
Saline Irrigation ◽  
Irrigation Regimes ◽  
Potassium Fertilization ◽  
Yield Difference ◽  
Significant Yield ◽  
Heading Stage

A field experiment with split-split plot design (SSPD) was conducted to study the response of two winter wheat (Triticumaestivum L.) cultivars (viz. salt tolerant cultivar KRL-1-4 and salt non-tolerant cultivar HD-2894) under saline irrigation regimes with and without foliar potassium fertilization on growth and grain yield of wheat during rabi 2011-12 and 2012-13. Potassium in the ratio of K+: Na+ (1: 10) was applied as foliar application during the heading stage of the crop. Results showed that the grain yield of KRL-1-4 and HD-2894 cultivars with foliar potassium fertilization at the heading stage increased by 6.5 to 22% and 3 to 15% during rabi 2011-2012, respectively under different saline irrigation regimes as compared to the control. Moreover, the results of rabi 2012-13 showed an increase in grain yield ranging from 4.5 to 20% for KRL-1-4 as compared to the control. Statistical analysis of grain yield parameter showed that the foliar potassium application in both varieties resulted in significant yield difference at 0.05 probability level as compared to the non-foliar application. Overall, it was observed that the foliar potassium fertilization increased the grain yield of both wheat cultivars, while the salt tolerant cultivar performed better than the salt non-tolerant cultivar under irrigated saline regimes.

Effect of Differential Sulfur Nutrition on the Specific Activity of ATP Sulfurylase in Mature Grain From Five Wheat Cultivars (Triticum aestivum L.)

1987 ◽  
Vol 14 (3) ◽  
pp. 239 ◽  
Author(s):  
MJ Archer
Keyword(s):  
Grain Yield ◽  
Specific Activity ◽  
Triticum Aestivum L ◽  
Quality Data ◽  
Sand Culture ◽  
Wheat Cultivars ◽  
Sulfur Deficiency ◽  
Atp Sulfurylase ◽  
Specific Activities ◽  
Sulfur Nutrition

Wholemeal grists of five wheat cultivars (T. aestivum L.) - Gabo, Olympic, Stockade, Insignia and Summit - grown in sand culture supplied with low (10 �M), medium (375 �M) and high (875 �M) concentrations of sulfur, were analysed for their specific activities of ATP sulfurylase (EC 2.7.7.4, ATP:sulfate adenylyltransferase). Under sulfur deficient conditions, residual activities were significantly higher in Gabo, Olympic and Stockade. Olympic maintained significantly higher activities at both the medium and high sulfur concentrations. All cultivars except Summit showed significantly lower activities when the sulfur deficiency was corrected. The results are discussed in relation to grain yield per plant, yield components, grain N, S, P contents and Pelshenke quality data. Grain yield per plant and ATP sulfurylase activity were positively correlated at all sulfur levels.

Response of four wheat cultivars to applications of (2-chloroethyl)trimethylammonium chloride (CCC)

1972 ◽  
Vol 12 (54) ◽  
pp. 75 ◽  
Author(s):  
LB Lowe ◽  
OG Carter
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Unit Area ◽  
Differential Response ◽  
N Fertilizer ◽  
Trimethylammonium Chloride ◽  
Wheat Cultivars ◽  
Height Reduction ◽  
Height Data

The effect of CCC on the grain yield of two Australian and two Mexican semi-dwarf cultivars, with two seeding rates, and two levels of N fertilizer, was studied in the held. Grain yield increases, particularly in CV. Timgalen, were produced by CCC through the control of lodging, an increase in the number of grains per ear and an increase in the number of ears per unit area. Even where only a small effect on height was produced in CV. Pitic 62, the grain yield was increased as a result of more ear-bearing tillers. No significant grain yield increases were found in R.K.F. The delay in ear emergence in some cultivars as a result of CCC did not change the number of florets formed but it may have improved floral fertility as indicated by the higher number of grains per ear at harvest. The differential response of the cultivars to CCC is demonstrated by the plant height data. In decreasing order of height reduction they were Robin, Timgalen, Pitic 62 and R.K.F.

Influence of genotype, sowing date, and seeding rate on wheat development and yield

1993 ◽  
Vol 33 (6) ◽  
pp. 751 ◽  
Author(s):  
DR Coventry ◽  
TG Reeves ◽  
HD Brooke ◽  
DK Cann
Keyword(s):  
Grain Yield ◽  
Sowing Date ◽  
Triticum Aestivum L ◽  
Climatic Conditions ◽  
Wheat Cultivars ◽  
Seeding Rate ◽  
Sowing Time ◽  
Spike Density ◽  
Early Maturity ◽  
North Eastern

A 3-year study was conducted to measure the effect of sowing time and seeding rate on the development and yield of wheat (Triticum aestivum L.) grown under high-yielding conditions in north-eastern Victoria. A range of wheat cultivars with different development responses, including 'winter' types, was used in 2 experiments in each season. High grain yields for dryland wheat were measured in the first 2 seasons (1985-86), and in 1985, near-optimal water use efficiencies (>18 kg/ha. mm effective rainfall) were obtained. In the third season (1987) grain yield was limited by adverse climatic conditions-in the me- and post-anthesis period. In each season, grain yield declined with delay in sowing time. In 1985 there was a loss of 200-250 kg grain/ha for each week's delay in sowing time. In 1987, yield loss with delayed sowing was 50-110 kg grain/ha. In each season, cultivars with late or midseason maturity development gave the highest mean yields, and the use of these maturity types allowed earlier sowing, in mid April. However, with late sowing of wheat there was a trend for early maturity types to give higher yields, and so the use of 2 wheat cultivars with distinct maturity development responses to climate is recommended. If only 1 wheat cultivar is to be used, then a late maturity type is recommended. Higher wheat yields were also obtained as spike density increased, as a result of higher seeding rates. Our data suggest that in the higher rainfall region of north-eastern Victoria, a spike density of about 500 spikes/m2 is required to optimise wheat yields.

scholarly journals The contribution of yield components in determining the productivity of winter wheat (Triticum aestivum L.)

2016 ◽  
Vol 69 (3) ◽  
Author(s):  
Elżbieta Harasim ◽  
Marian Wesołowski ◽  
Cezary Kwiatkowski ◽  
Paweł Harasim ◽  
Mariola Staniak ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Yield Components ◽  
Unit Area ◽  
Weather Conditions ◽  
Triticum Aestivum L ◽  
Nitrogen Rate ◽  
Spike Density ◽  
The University ◽  
1000 Grain Weight

<p>The aim of the present study was to determine the effect of different growth regulator rates and nitrogen fertilization levels on yield components and to evaluate their influence on winter wheat productivity. A field experiment with winter wheat ‘Muza’ was conducted at the Czesławice Experimental Farm, belonging to the University of Life Sciences in Lublin, Poland over the period 2004–2007. In this experiment, the effect of the studied factors on yield and its components was primarily dependent on weather conditions during the study period.</p><p>An increase in nitrogen rate from 100 to 150 kg ha<sup>−1</sup> in 2005 and 2007 had a significant effect on the increase in grain yield per unit area. In 2005, the grain yield rose through increased spike density (by 6.3%) and a higher number of grains per spike (by 1.6%). The 1000-grain weight decreased the grain yield per unit area (by 0.04 t ha<sup>−1</sup>). In 2007, the higher yield of wheat fertilized with nitrogen at a rate of 150 kg N ha<sup>−1</sup> was positively affected by all the three yield components. The statistical analysis of the results showed that the winter wheat grain yields were also significantly affected by the retardant rates applied depending on the year.</p>

EFFECT OF SEEDING RATE ON GRAIN YIELD, STRAW YIELD AND HARVEST INDEX OF EIGHT SPRING WHEAT CULTIVARS

1982 ◽  
Vol 62 (2) ◽  
pp. 285-291 ◽  
Author(s):  
R. J. BAKER
Keyword(s):  
Triticum Aestivum ◽  
Grain Yield ◽  
Spring Wheat ◽  
Linear Response ◽  
Harvest Index ◽  
Triticum Aestivum L ◽  
Wheat Cultivars ◽  
Seeding Rate ◽  
Straw Yield ◽  
Rate Interaction

Eight cultivars of spring wheat, Triticum aestivum L., were evaluated at seeding rates of 110, 270 and 430 seeds/m2 in a total of nine experiments spanning three locations, two dates of seeding and 2 yr. Grain yield exhibited a significant cultivar × experiment × linear response to seeding rate interaction. Grain yield of Pitic 62 showed a significant decrease with increased seeding rate in one experiment while giving the greatest increase in another. Over all experiments, the highest seeding rate gave the highest grain yield. For straw yield, Chester showed the greatest response to seed rate, Canuck the least. With the exception of Canuck, which showed a significant increase in harvest index with increased seeding rate, harvest index tended to be greater at the intermediate seeding rate.

Source - sink balance and manipulating sink - source relations of wheat indicate that the yield potential of wheat is sink-limited in high-rainfall zones

2010 ◽  
Vol 61 (10) ◽  
pp. 852 ◽  
Author(s):  
Heping Zhang ◽  
Neil C. Turner ◽  
Michael L. Poole
Keyword(s):  
Grain Yield ◽  
Western Australia ◽  
Unit Area ◽  
Grain Filling ◽  
Yield Potential ◽  
Limiting Factor ◽  
Wheat Cultivars ◽  
High Rainfall ◽  
Sink Size ◽  
Source Sink

Grain yield depends on the number of grains per unit area (sink) and the availability of assimilates (source) to fill these grains. The aim of the current work was to determine whether wheat yield in the high-rainfall zone of south-western Australia is limited in current cultivars by the size of the sink or by the assimilates available for grain filling. Three wheat cultivars (Calingiri, Chara and Wyalkatchem) and two breeding lines (HRZ216 and HRZ203) were grown in four replicates in the field from 2005 to 2007. Dry matter and water soluble carbohydrates (WSC) at anthesis and maturity were measured and used to determine the source and sink balance of the crop. In 2007, three further treatments were applied to manipulate the sink–source relationships: (i) spikelets were removed on main stems to increase the source : sink ratio; (ii) incoming solar radiation was reduced by 40% by shading after anthesis to reduce the availability of assimilates to grains; and (iii) supplemental irrigation was used to maintain the capacity for photosynthesis by an improved water supply during grain filling. The source–sink balance of the crops showed that the potential source was 25% greater than the actual grain yield in average and above-average seasons (2005 and 2007), suggesting that sink size, represented by the number of grain per unit area, was a limiting factor to yield potential. However, the source may have become a limiting factor in a drought season (2006). The grain yield increased with increased number of grains/m2 and kernel weight remained relatively stable even when grain number increased from 7000 to 16 000 per m2. The removal of half of the spikelets on the main stem did not increase kernel mass of the remaining grains and an additional 33 mm of irrigation water did not increase grain yield, but significantly (P < 0.05) increased WSC left in stems and leaf sheaths at maturity. Shading after anthesis did not significantly reduce grain yield of the current cultivars Calingiri and Wyalkatchem, but it reduced grain yield by 23–25% (P < 0.05) in Chara and HRZ203. The source–sink balance over three seasons and three independent experiments in 2007 suggested that the yield of the current wheat cultivars is more sink- than source-limited and that breeding wheat with a larger sink size than in the current cultivars may lift the yield potential of wheat in the high-rainfall zone of south-western Australia.

scholarly journals The Response of Wheat Cultivars Triticum aestivum L. to Various Growth Regulators Under Thi-Qar Province Condition

2018 ◽  
Vol 7 (1) ◽  
pp. 49-56
Author(s):  
Haitham A. Ali ◽  
Salih Hadi Farhood AL-Salim ◽  
Ragheb Hadi A. AL-burky
Keyword(s):  
Triticum Aestivum ◽  
Grain Yield ◽  
Growth Regulators ◽  
Combination Treatment ◽  
Growth Regulator ◽  
Growing Season ◽  
Triticum Aestivum L ◽  
The Other ◽  
Wheat Cultivars ◽  
1000 Grain Weight

A field experiment is conducted at Thi-Qar Province in AL-Shatra District located about 30 Km North AL-Nassiria City to study the response of three wheat Cultivars Triticum  aestivum L. to Growth regulators during 2014-2015 growing Season. The Cultivars are Latifia , AL-Rasheed and Iba 99. The growth regulators are Alga600, Atonik and Azomin32%. Factorial experiment in R.C.B.D.  with three replicates is used . The results showed that Iba 99  Cultivar gives the highest plant height , Spikes/m2 and grain yield , with a means 80.83 cm , 272.25 spike/m2 and 3.06 Ton/h) Respectively . Azomin32%  growth regulator gives the highest grain /spike , 1000 grain weight and grain yield , with a means 66.00 seed/spike ,43.55 gm , 272.33 spike/m2  respectively. In addition the interaction between Iba 99 Cultivar  and Azomin32% growth regulator gives the highest Leaf Area , number of grain/spike and grain yield with means 45.10 cm2 , 70.00 grain/spike and 3.16 ton/ha respectively.The combination treatment Iba 99 with Atonik growth regulator gives the highest number of spike/m2  with a mean 279.66 spike/m2  . In the other hand, the same cultivar with Atonik and Azomin32% gives the highest mean of grain yield with a amount 3.16 ton/ha.

scholarly journals Main Stem and Tiller Contribution to Wheat Cultivars Yield Under Different Irrigation Regimes

2001 ◽  
Vol 44 (4) ◽  
pp. 325-330 ◽  
Author(s):  
Deonisio Destro ◽  
Édison Miglioranza ◽  
Carlos Alberto Arrabal Arias ◽  
Jefferson Marcos Vendrame ◽  
José Carlos Vieira de Almeida
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Total Yield ◽  
Triticum Aestivum L ◽  
Field Conditions ◽  
Main Stem ◽  
Wheat Cultivars ◽  
Normal Field ◽  
Randomized Complete Block Design ◽  
Water Treatments

The present study was carried out to determine the contribution of main stems and tillers to the total yield of two wheat cultivars (Triticum aestivum L.), Cocoraque and BH-1146, under two water treatments: a) normal field conditions, and; b) irrigation, in Londrina, PR, Brazil. The experiment was an eight replication randomized complete block design with treatments arranged in split-plots. Data on total grain yield, main stem grain yield, tillers grain yield, the ratio between tiller and total grain yield, yield components and other 17 traits were collected. The cultivar BH-1146 had a higher total grain yield in relation to Cocoraque under normal field conditions; i, e., under water stress. Main stem grain yield responded positively and significantly to irrigation which was the main cause of increased yield in both cultivars. The tiller grain yield contributed little to the total yield.

Sign in / Sign up

Export Citation Format

Share Document