Inheritance of Six Yield Components of Winter Wheat (Triticum aestivum L.)

1987 ◽  
Vol 90 (3/4) ◽  
pp. 103 ◽  
Author(s):  
R. M. Salman ◽  
E. G. Heyne
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Yield Components ◽  
Triticum Aestivum L

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

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 Naturally Occurring Ecdysteroids in Triticum aestivum L. and Evaluation of Fenarimol as a Potential Inhibitor of Their Biosynthesis in Plants

2021 ◽  
Vol 22 (6) ◽  
pp. 2855
Author(s):  
Anna Janeczko ◽  
Jana Oklestkova ◽  
Danuše Tarkowská ◽  
Barbara Drygaś
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Triticum Aestivum L ◽  
Growth Conditions ◽  
Animal Kingdom ◽  
Experimental Conditions ◽  
P450 Monooxygenase ◽  
Naturally Occurring ◽  
Regulatory Effects ◽  
Potential Use

Ecdysteroids (ECs) are steroid hormones originally found in the animal kingdom where they function as insect molting hormones. Interestingly, a relatively high number of these substances can also be formed in plant cells. Moreover, ECs have certain regulatory effects on plant physiology, but their role in plants still requires further study. One of the main aims of the present study was to verify a hypothesis that fenarimol, an inhibitor of the biosynthesis of ECs in the animal kingdom, also affects the content of endogenous ECs in plants using winter wheat Triticum aestivum L. as a model plant. The levels of endogenous ECs in winter wheat, including the estimation of their changes during a course of different temperature treatments, have been determined using a sensitive analytical method based on UHPLC-MS/MS. Under our experimental conditions, four substances of EC character were detected in the tissue of interest in amounts ranging from less than 1 to over 200 pg·g−1 FW: 20-hydroxyecdysone, polypodine B, turkesterone, and isovitexirone. Among them, turkesterone was observed to be the most abundant EC and accumulated mainly in the crowns and leaves of wheat. Importantly, the level of ECs was observed to be dependent on the age of the plants, as well as on growth conditions (especially temperature). Fenarimol, an inhibitor of a cytochrome P450 monooxygenase, was shown to significantly decrease the level of naturally occurring ECs in experimental plants, which may indicate its potential use in studies related to the biosynthesis and physiological function of these substances in plants.

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