Cultivar difference in the nitrate uptake ability of wheat at different temperature conditions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F22%3A10175752" target="_blank" >RIV/00027006:_____/22:10175752 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Cultivar difference in the nitrate uptake ability of wheat at different temperature conditions

Popis výsledku v původním jazyce

The temperature is a key parameter of the rate of nitrate uptake and utilization. The effect of suboptimal (5 oC), optimal (15 oC), and supraoptimal (30 oC) temperature on nitrate uptake and metabolism was monitored in six varieties of bread wheat (Triticum aestivum L.) and two varieties of emmer wheat (Triticum dicoccum). Plants were grown in hydroponic solution under controlled conditions with a photoperiod of 16 h. The temperature acclimation started one week before the experiment was performed. The rates of nitrate uptake were determined from the concentration changes of the nutrient solution, during the experiment. The rate of uptake was expressed as a micromole of NO3- absorbed per g of root fresh weight per hour. At higher temperatures, a higher rate of uptake and assimilation of nitrate anion was observed. At lower temperatures, the metabolism was slower. At both high and low temperatures, the maximum uptake rate (Vmax) was higher in the observed emmer wheat (T. dicoccum) varieties than in the bread wheat (T. aestivum L.) ones. Interspecies and varietal differences in nitrate assimilation are discussed.

Název v anglickém jazyce

Cultivar difference in the nitrate uptake ability of wheat at different temperature conditions

Popis výsledku anglicky

The temperature is a key parameter of the rate of nitrate uptake and utilization. The effect of suboptimal (5 oC), optimal (15 oC), and supraoptimal (30 oC) temperature on nitrate uptake and metabolism was monitored in six varieties of bread wheat (Triticum aestivum L.) and two varieties of emmer wheat (Triticum dicoccum). Plants were grown in hydroponic solution under controlled conditions with a photoperiod of 16 h. The temperature acclimation started one week before the experiment was performed. The rates of nitrate uptake were determined from the concentration changes of the nutrient solution, during the experiment. The rate of uptake was expressed as a micromole of NO3- absorbed per g of root fresh weight per hour. At higher temperatures, a higher rate of uptake and assimilation of nitrate anion was observed. At lower temperatures, the metabolism was slower. At both high and low temperatures, the maximum uptake rate (Vmax) was higher in the observed emmer wheat (T. dicoccum) varieties than in the bread wheat (T. aestivum L.) ones. Interspecies and varietal differences in nitrate assimilation are discussed.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

<a href="/cs/project/QK1910041" target="_blank" >QK1910041: Využití zobrazovacích metod pro automatické fenotypování ve šlechtění na rezistenci k biotickým a abiotickým stresům u pšenice</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů