Differences in macronutrient uptake by apple rootstocks M9, M27 and MM106 (P1)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F17%3A00004392" target="_blank" >RIV/00027006:_____/17:00004392 - 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

Differences in macronutrient uptake by apple rootstocks M9, M27 and MM106 (P1)

Popis výsledku v původním jazyce

Rootstocks differ in their uptake of macro- and micro-nutrients. The aim of this study was to determine macronutrients uptake by apple rootstocks M9, M27, MM 106, which are mostly used in fruit production in the Czech Republic. Young rootstocks were cultivated in the soil during winter. At the beginning of the vegetative growth, plants were transferred to the cultivation room into a hydroponic solution with a photoperiod of 16 h light/8h dark and 23 °C day/17 °C night temperature. Nutrient uptake (NO3-, NH4+, H2PO4-, K+, Mg2+) was studied during flowering. After acclimation, plants were placed into a solution of known concentration of nutrients. The rates of nutrient uptake were determined from the concentration changes of the solution, during the experiment. The rate of uptake was expressed as microgram of nutrient absorbed per hour per rootstock. The two experimental variables tested were rootstock and N source, either NO3- or NH4+. Rootstocks absorbed ammonium ions from the nutrient solution faster than nitrate. M9 took up nitrogen from the two supplied N forms more evenly; MM106 was the slowest rootstock in absorbing nitrate, but was the fastest in absorbing ammonium. The tested rootstocks absorbed phosphorus faster in the presence of nitrate than in the presence of ammonium. The uptake of potassium and magnesium by M27 was faster than the M9 and MM106 rootstocks in the presence of nitrate. The presence of the ammonium ions can cause inhibition of cations intake and in this experiment only their efflux was observed. The transport/allocation of 15N (originated from NO3-or NH4+) from roots to leaves is discussed.

Název v anglickém jazyce

Differences in macronutrient uptake by apple rootstocks M9, M27 and MM106 (P1)

Popis výsledku anglicky

Rootstocks differ in their uptake of macro- and micro-nutrients. The aim of this study was to determine macronutrients uptake by apple rootstocks M9, M27, MM 106, which are mostly used in fruit production in the Czech Republic. Young rootstocks were cultivated in the soil during winter. At the beginning of the vegetative growth, plants were transferred to the cultivation room into a hydroponic solution with a photoperiod of 16 h light/8h dark and 23 °C day/17 °C night temperature. Nutrient uptake (NO3-, NH4+, H2PO4-, K+, Mg2+) was studied during flowering. After acclimation, plants were placed into a solution of known concentration of nutrients. The rates of nutrient uptake were determined from the concentration changes of the solution, during the experiment. The rate of uptake was expressed as microgram of nutrient absorbed per hour per rootstock. The two experimental variables tested were rootstock and N source, either NO3- or NH4+. Rootstocks absorbed ammonium ions from the nutrient solution faster than nitrate. M9 took up nitrogen from the two supplied N forms more evenly; MM106 was the slowest rootstock in absorbing nitrate, but was the fastest in absorbing ammonium. The tested rootstocks absorbed phosphorus faster in the presence of nitrate than in the presence of ammonium. The uptake of potassium and magnesium by M27 was faster than the M9 and MM106 rootstocks in the presence of nitrate. The presence of the ammonium ions can cause inhibition of cations intake and in this experiment only their efflux was observed. The transport/allocation of 15N (originated from NO3-or NH4+) from roots to leaves is 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/QJ1510133" target="_blank" >QJ1510133: Inovace metod monitoringu a diagnostiky výživy ovocných dřevin pro efektivní hnojení v intenzivních výsadbách</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

2017

Kód důvěrnosti údajů

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