Abstract
The purpose of the study: to identify the in uence of mineral nutrition conditions on morphogenesis and absorption of macronutrients by spring barley plants of two varieties in the period from germination to earing under controlled conditions of light culture. The objects of the study were plants of double-row barley of the Takmak variety and the Salome variety. The plants were grown by hydroponics on expanded clay under controlled environmental conditions. Four variants of nutrient solutions were prepared for watering plants: variant l (the control) - Knop solution of standard concentration; variant 2 - Knop solution was prepared with 50 % concentration from its standard concentration; variant 3 - solution was prepared on the basis of Knop solution, but with 50 % of N concentration from its standard concentration; variant 4 - solution was prepared on the basis of Knop solution, but with 25 % of P concentration from its standard concentration. As a result, variants 2 and 3 showed a decrease in total bushiness by more than 30 % compared to the control. The mass of plants in variants 2 and 3 turned out to be 50 % and 35 %, respectively, less than in the control. The decrease in plant mass was mainly due to a decrease in the mass of lateral shoots. The level of consumption of mineral elements, closely related to the composition of solutions, affected not so much the chemical composition of plant tissues as the amount of plant biomass, which manifested itself in high correlations between the consumption of mineral elements and the gross content of these elements in plants with rather weak links between consumption and the content of mineral elements in plants.
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Claims 7
Claim · model-written summary
Nutrient solution variants 2 and 3 decreased total bushiness of spring barley by more than 30 % compared with the control.
- Taxon
- spring barley
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Hordeum vulgaree0 - Treatment
- variants 2 and 3e1
- Outcome
- total bushinesse1
- Direction
- decreasee1
- Value
- 30 %e1
- Comparator
- controle1
- Setting
- under controlled conditions of light culturee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“absorption of macronutrients by spring barley plants of two varieties”
e1“variants 2 and 3 showed a decrease in total bushiness by more than 30 % compared to the control”
e6“under controlled conditions of light culture”
Claim · model-written summary
Nutrient solution variant 2 reduced spring barley plant mass by 50 % relative to the control.
- Taxon
- spring barleyHordeum vulgaree0
- Treatment
- variants 2e2
- Outcome
- mass of plantse2
- Direction
- lesse2
- Value
- 50 %e2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“absorption of macronutrients by spring barley plants of two varieties”
e2“The mass of plants in variants 2 and 3 turned out to be 50 % and 35 %, respectively, less than in the control”
Claim · model-written summary
Nutrient solution variant 3 reduced spring barley plant mass by 35 % relative to the control.
- Taxon
- spring barleyHordeum vulgaree0
- Treatment
- variants 2 and 3e2
- Outcome
- mass of plantse2
- Direction
- lesse2
- Value
- 35 %e2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“absorption of macronutrients by spring barley plants of two varieties”
e2“The mass of plants in variants 2 and 3 turned out to be 50 % and 35 %, respectively, less than in the control”
Claim · model-written summary
The decrease in spring barley plant mass was mainly due to a decrease in the mass of lateral shoots.
- Taxon
- spring barleyHordeum vulgaree0
- Outcome
- plant masse3
- Qualifier
- mainly due to a decrease in the mass of lateral shootse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“absorption of macronutrients by spring barley plants of two varieties”
e3“The decrease in plant mass was mainly due to a decrease in the mass of lateral shoots”
Claim · model-written summary
Consumption of mineral elements affected the amount of plant biomass more than the chemical composition of plant tissues.
- Taxon
- spring barleyHordeum vulgaree0
- Treatment
- consumption of mineral elementse4
- Outcome
- amount of plant biomasse4
- Comparator
- chemical composition of plant tissuese4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“absorption of macronutrients by spring barley plants of two varieties”
e4“The level of consumption of mineral elements, closely related to the composition of solutions, affected not so much the chemical composition of plant tissues as the amount of plant biomass”
Claim · model-written summary
Consumption of mineral elements was highly correlated with the gross content of these elements in spring barley plants.
- Taxon
- spring barleyHordeum vulgaree0
- Compound
- mineral elementse5
- Outcome
- gross content of these elements in plantse5
- Qualifier
- high correlationse5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“absorption of macronutrients by spring barley plants of two varieties”
e5“which manifested itself in high correlations between the consumption of mineral elements and the gross content of these elements in plants with rather weak links between consumption and the content of mineral elements in plants”
Claim · model-written summary
Links between consumption of mineral elements and their content in spring barley plants were rather weak.
- Taxon
- spring barleyHordeum vulgaree0
- Compound
- mineral elementse5
- Outcome
- content of mineral elements in plantse5
- Qualifier
- rather weak linkse5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“absorption of macronutrients by spring barley plants of two varieties”
e5“which manifested itself in high correlations between the consumption of mineral elements and the gross content of these elements in plants with rather weak links between consumption and the content of mineral elements in plants”