Parameterization of a crop growth and development simulation model at sub-model components level. An example for winter wheat (Triticum aestivum L.)

2006 ◽  
Vol 21 (7) ◽  
pp. 1042-1054 ◽  
Author(s):  
Luca Bechini ◽  
Stefano Bocchi ◽  
Tommaso Maggiore ◽  
Roberto Confalonieri
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Simulation Model ◽  
Growth And Development ◽  
Triticum Aestivum L ◽  
Crop Growth ◽  
Model Components ◽  
Crop Growth And Development

scholarly journals Winter Wheat (Triticum aestivum L.) Overwintering Under Different Sowing Densities

2017 ◽  
Vol 17 (4) ◽  
pp. 307
Author(s):  
Danijela Kondić ◽  
Maja Bajić ◽  
Desimir Knežević ◽  
Đurađ Hajder
Keyword(s):  
Triticum Aestivum ◽  
Statistical Analysis ◽  
Winter Wheat ◽  
Growth And Development ◽  
Necessary Conditions ◽  
Triticum Aestivum L ◽  
Wheat Cultivars ◽  
Agronomic Practices ◽  
Winter Wheat Cultivars ◽  
Banja Luka

Wheat overwintering ability affects the final number of plants that are able to continue their growth and development when necessary conditions are established. This research was conducted to study the overwintering ability of winter wheat cultivars (NS 40S, Prima and Nova Bosanka) under different sowing densities during 2013/14 and 2014/15 in agroecological conditions of Banja Luka. Standard agronomic practices for winter wheat were performed. Wheat cultivars were sown manually, under sowing densities with different seed arrangements: 384, 424, 451, 504, 544, 584, 588, and 604 seeds m-2. Counting of wheat plants in both examined years was carried out in the second decade of February. Statistical analysis was performed using factorial analysis of variance 2×8×3, while significant differences between treatments were tested by LSD test. The average overwintering plants percentage for all three examined wheat cultivars was 50.06%. Sowing density of 588 seeds m-2 stands out as the density with a tendency of the highest percentage of overwintering plants in both years.

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.

Crop growth and development dynamics of two fodder beet (Beta vulgaris L.) cultivars sown on different dates in New Zealand

2019 ◽  
Vol 63 (3) ◽  
pp. 449-466 ◽  
Author(s):  
Edith N. Khaembah ◽  
Shane Maley ◽  
Mike George ◽  
Emmanuel Chakwizira ◽  
John de Ruiter ◽  
...  
Keyword(s):  
New Zealand ◽  
Beta Vulgaris ◽  
Growth And Development ◽  
Crop Growth ◽  
Fodder Beet ◽  
Crop Growth And Development

Cirsium arvense (L.) Scop. competition with winter wheat (Triticum aestivum L.)

Weed Research ◽  
1991 ◽  
Vol 31 (6) ◽  
pp. 409-415 ◽  
Author(s):  
B. R. MCLENNAN ◽  
R. ASHFORD ◽  
M. D. DEVINE
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Triticum Aestivum L ◽  
Cirsium Arvense
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