scholarly journals Determination on Genetic Variation for Morphological Traits and Yield Components of New Winter Wheat (Triticum aestivum L) Lines

2010 ◽  
Vol 2 (1) ◽  
pp. 121-124 ◽  
Author(s):  
Sali Ali ALIU ◽  
Shukri FETAHU
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Yield Components ◽  
Harvest Index ◽  
Dry Matter ◽  
Triticum Aestivum L ◽  
Yield Traits ◽  
Wheat Line ◽  
Lower Yield ◽  
Genetic Studies

he genetic studies were conducted on six new winter wheat (Triticum aestivum L.) line during three years investigations developed in agro ecological conditions of Kosovo. Data for various morphological and yield traits were taken and analyzed for spike length (SL), plant height (PH), total dry matter (TDM), spike Weight (SW), grain weight per spike (GWS), yield (Y) and harvest index (HI). Field design consisted in a randomized blocks design (RBD) with three replications. Results indicated that the line 01KS as the most competitive genotypes produced significantly higher for SL (9.58 cm), GWS (2.37 g per spike) and grain yield (10.66 t ha-1) while lower yield was recorded at the line 04KS (8.02 t ha-1). The lowest SL (8.4 cm) belonged to line 06KS which was ranked as the least competitive genotype. The significantly higher total dry matter (TDM) was recorded at the wheat line 02KS on value 4.88 g, while the lowest (4.44 g) belonged to 04KS which was ranked as the last genotype. There was a positive and significant harvest index (HI) on value from 50.5% to 39.1%.

scholarly journals Growth and Yield Performance of Bari Mung-5 Under Different Time of Sowing

2012 ◽  
Vol 36 (2) ◽  
pp. 227-231
Author(s):  
Nargis Jahan ◽  
M M Golam Adam
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Seed Weight ◽  
Harvest Index ◽  
Dry Matter ◽  
Growth And Yield ◽  
Lower Yield ◽  
Sowing Time ◽  
Academy Of Sciences ◽  
Pod Length

A field experiment was carried out at University of Dhaka from March to July, 2011 to study the effect of time of sowing on the growth and yield of BARI mung-5. The treatments consisted of three dates of sowing viz. March 15, April 15 and May 15. The crop responded significantly to sowing time and 15 April sowing seeds produced plants having maximum plant height (68.4 cm), leaves/plant (29.33), total dry matter/plant (17.99), branches/plant (8.17), pods/plant (11.33), pod length (8.78 cm), seeds/pod (11.17), 1000 seed weight (46.52 g), seed yield/plant (5.33 g), yield/ha (1.77 t) and harvest index (29.58 %) at harvest. The seed yield decreased by 36.8 and 49.9% when seed sown early (15 March) or late (15 May) due to production of lower yield components.   DOI: http://dx.doi.org/10.3329/jbas.v36i2.12966   Journal of Bangladesh Academy of Sciences, Vol. 36, No. 2, 227-231, 2012    

Herbicide-Grazing Interactions in Cheat (Bromus secalinus)–Infested Winter Wheat (Triticum aestivum)1

Weed Science ◽  
1990 ◽  
Vol 38 (6) ◽  
pp. 532-535 ◽  
Author(s):  
Jeffrey A. Koscelny ◽  
Thomas F. Peeper
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Grain Yield ◽  
Yield Components ◽  
Harvest Index ◽  
Field Experiments ◽  
Wheat Yield ◽  
Wheat Grain ◽  
Bromus Secalinus ◽  
Herbicide Treatments

Field experiments were conducted to determine the interaction of grazing and herbicide treatments on cheat control and biomass, wheat biomass, wheat grain yield, and wheat yield components. Ethyl-metribuzin at 1120 g ai ha−1and metribuzin at 420 g ai ha−1reduced cheat biomass 91 to 99 and 97 to 98%, respectively. Grazing had no effect on herbicide efficacy. Grazing increased cheat biomass in the check by 24% at only one location but did not affect total wheat plus cheat biomass. With one exception, controlled cheat was replaced by wheat on a 1:1 biomass basis when herbicides caused no crop injury. All herbicide treatments increased grain yield, but grazing did not alter yield. At two locations, increased heads m−2and spikelets/head accounted for most of the grain yield increases, but at one location seeds/spikelet and weight/seed were also increased. Harvest index was unaffected.

THE EFFECT OF IRRIGATION TIMING ON YIELD AND YIELD COMPONENTS OF WINTER WHEAT

1983 ◽  
Vol 63 (4) ◽  
pp. 815-823 ◽  
Author(s):  
M. L. HOOKER ◽  
S. H. MOHIUDDIN ◽  
E. T. KANEMASU
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Yield Components ◽  
Triticum Aestivum L ◽  
Kernel Weight ◽  
Significant Response ◽  
Seeding Rate ◽  
Cropping Season ◽  
Yield And Yield Components ◽  
Irrigation Treatments

A study was conducted in southwest Kansas to evaluate the effect of limited water applications at critical growth stages on yield and yield components of winter wheat (Triticum aestivum L.). The experiment was a split-plot design. Irrigation treatments were main plots and cultivar × seeding rate combinations were subplots. The irrigation treatments were: Preplant (PP), PP + jointing (JT), PP + flowering (FL), and PP + JT + FL. Two cultivars (Centurk and Newton) were seeded at rates of 22, 45, and 67 kg∙ha−1. The experiment was conducted over a 2-yr period. During the first cropping season grain and straw yields showed a significant (P < 0.05), positive response to irrigation water applications at the JT growth stage, compared to the PP and PP + FL treatments. There was no significant effect of water treatments on heads per square metre, kernels per square metre or kernel weight. The second cropping season resulted in a positive, significant response of straw yields to irrigation treatments, but no significant response of grain. Grain yield response was nullified by greater kernel weight on the treatments that were most limiting in soil water during early reproductive development (PP and PP + FL).Key words: Triticum aestivum L., limited irrigation, moisture stress, seeding rate, kernel number, kernel weight

Influence of Higher Growing-season Temperatures on Yield Components of Winter Wheat (Triticum aestivum L.)

Crop Science ◽  
2013 ◽  
Vol 53 (2) ◽  
pp. 621-628 ◽  
Author(s):  
Zenta Nishio ◽  
Miwako Ito ◽  
Tadashi Tabiki ◽  
Koichi Nagasawa ◽  
Hiroaki Yamauchi ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Yield Components ◽  
Growing Season ◽  
Triticum Aestivum L

Field studies on the growth and development of winter wheat

1981 ◽  
Vol 97 (3) ◽  
pp. 685-697 ◽  
Author(s):  
J. S. McLaren
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Linear Relationship ◽  
Yield Components ◽  
Harvest Index ◽  
Dry Matter ◽  
Plant Density ◽  
Dry Matter Production ◽  
N Application ◽  
Matter Production

SUMMARYThe effects of variety, plant density and time of N application on the yield and yield components of winter wheat were investigated in factorial experiments during 1977–8 and 1978–9, at Sutton Bonington. Armada produced substantially fewer vegetative tillers/m2 but the number of ears/m2, from anthesis onwards, was similar to that of Maris Huntsman. The effects of the time of N application on tiller production and survival differed between the 2 years and may have been related to the amount of residual N in the soil. A linear relationship was found between the number of tillers/m2 which died and the maximum number of tillers/m2.Kador produced a lower grain yield than Armada or Maris Huntsman, owing to a combination of lower ratio of grain D.M. to total above-ground D.M. (harvest index) and lower total dry-matter production. Armada produced a higher grain yield than Maris Huntsman in response to earlier application of N. Grain yield was less variable when final plant densities were greater than 200/m2.Grain yield was not particularly well related to individual yield components but showed a good linear relationship with number of grains/m2. Grain yield was also linearly related to total dry-matter production, with treatment effects on harvest index being relatively small. The results indicate that factors which influenced crop growth during grain site development were relatively more important than the factors affecting subsequent grain filling.

AN EVALUATION OF SEED GROWTH IN SOFT RED WINTER WHEAT

1981 ◽  
Vol 61 (3) ◽  
pp. 525-534 ◽  
Author(s):  
T. L. HOUSLEY ◽  
A. W. KIRLEIS ◽  
H. W. OHM ◽  
F. L. PATTERSON
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Dry Matter ◽  
Dry Weight ◽  
Triticum Aestivum L ◽  
Seed Maturation ◽  
Protein Accumulation ◽  
Soft Red Winter Wheat ◽  
Seed Growth ◽  
Red Winter Wheat

Four cultivars and five lines of soft red winter wheat (Triticum aestivum L.) representing Arthur and Knox types and Arthur by Knox types were grown in the field. The rate of duration of dry matter, carbohydrate and protein accumulation during seed maturation, the weight of the seed at 10 days post-anthesis and the weight of 200 seeds at maturity were measured in seeds from the central spikelet. The Arthur types (Arthur, Oasis, Beau) had relative and maximal rates of dry matter, carbohydrate and protein accumulation that were greater than the Knox types (Monon, 65256, 65309). The duration over which dry weight, carbohydrates and protein accumulated in the seeds was consistently longer in the Knox types. The rate and duration of dry matter, carbohydrate and protein accumulation in the Arthur by Knox types (6413, 71586 and 72483) were more similar to the Arthur types. Ranking each cultivar or line with regard to the measured parameters of seed growth favored the Arthur types with the following ranking from the seeds that were the greatest sinks to those that were the poorest: 71586, Arthur, Beau, 72483, Oasis, 6413, Monon, 65309 and 65256.

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