scholarly journals EFFECT OF CULTIVAR AND NUTRIENT SOLUTION CALCIUM CONCENTRATION ON CALCIUM UPTAKE AND DISTRIBUTION IN COLLARDS

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1129d-1129
Author(s):  
Jon R. Johnson
Keyword(s):  
Nutrient Solution ◽  
Calcium Concentration ◽  
Calcium Uptake ◽  
Solution Culture ◽  
Physiological Basis ◽  
Culture Studies ◽  
Ca Uptake ◽  
Young Leaves ◽  
Nutrient Solution Culture ◽  
Cultivar Susceptibility

`Vates' is more susceptible to tipburn than `Blue Max' or `Heavi Crop' when grown under high temperature conditions. Nutrient solution culture studies were conducted to determine the influence of cultivar and Ca level in the nutrient solution on Ca uptake and distribution in the plant and to determine the physiological basis for differences in cultivar susceptibility to tipburn. Ca levels in the nutrient solution were 1 and 4,5 mM. Studies were conducted in the greenhouse at 32C during the day and 21C at night. Collard plants were 3 weeks old when the study was initiated. Cultivar and Ca level had no influence on Ca uptake during the first two weeks of the study. Ca uptake by `Blue Max' was greater than by `Vates' or `Heavi Crop' during the 3rd, 4th and 5th weeks of the study. Ca uptake for `Blue Max' was 73 ppm/week whereas for `Vates' and `Heavi Crop' it was 55 and 46 ppm/week, respectively during the 5th week of the study. Increasing the Ca level increased the Ca content of young leaves more for `Blue Max' than for `Vates' or `Heavi Crop'. Ca content of the petiole and stem was higher for `Blue Max' than for `Vates' or `Heavi Crop'. The influence of cultivar and nutrient solution Ca level on uptake and distribution of other nutrients will be discussed.

scholarly journals Calcium Accumulation, Calcium Distribution, and Biomass Partitioning in Collards

1991 ◽  
Vol 116 (6) ◽  
pp. 991-994 ◽  
Author(s):  
Jon R. Johnson
Keyword(s):  
Root System ◽  
Nutrient Solution ◽  
Accumulation Rate ◽  
Moisture Stress ◽  
System Size ◽  
Solution Culture ◽  
Calcium Accumulation ◽  
Young Leaves ◽  
Nutrient Solution Culture ◽  
Total Plant

`Vates' collard (Brassica oleracea L. Acephala Group) was more susceptible to tipburn than `Blue Max' or “Heavi Crop' in field and nutrient solution culture experiments. The root system of Vates' was smaller than that of `Blue Max' in all experiments. Because of its smaller root system, `Vates' may be more susceptible to moisture stress than `Blue Max' when grown under high-temperature conditions on sandy soils, thus increasing susceptibility to tipburn. Root system size, however, did not influence Ca accumulation or Ca concentration in the plants. Calcium accumulation rate was higher for `Blue Max' and `Heavi Crop' than for Yates' during the 3rd through the 5th weeks of culture, in a nutrient solution that contained 5 mM Ca. Calcium efficiency ratio (CaER, milligrams of dry matter produced per milligram of Ca in tissue) for young leaves was higher for `Blue Max' and `Heavi Crop' than “for `Vates' when plants were grown with 1 mM Ca, which may partly explain the greater susceptibility of `Vates' to tipburn. `Heavi Crop' had a higher total plant CaER than `Blue Max' when grown with 5 mM Ca.

Absorption of Na, Cl, and B by Desert Saltbush in Relation to Composition of Nutrient Solution Culture 1

1970 ◽  
Vol 62 (3) ◽  
pp. 351-352 ◽  
Author(s):  
N. Jerry Chatterton ◽  
C. M. McKell ◽  
F. T. Bingham ◽  
W. J. Clawson
Keyword(s):  
Nutrient Solution ◽  
Solution Culture ◽  
Nutrient Solution Culture

Modeling Salinity Build-Up in Recirculating Nutrient Solution Culture

2005 ◽  
Vol 28 (3) ◽  
pp. 431-445 ◽  
Author(s):  
G. Carmassi ◽  
L. Incrocci ◽  
R. Maggini ◽  
F. Malorgio ◽  
F. Tognoni ◽  
...  
Keyword(s):  
Nutrient Solution ◽  
Solution Culture ◽  
Nutrient Solution Culture

Iron(II)–amino acid chelates alleviate salt-stress induced oxidative damages on tomato grown in nutrient solution culture

2014 ◽  
Vol 165 ◽  
pp. 91-98 ◽  
Author(s):  
Somayeh Ghasemi ◽  
Amir Hossein Khoshgoftarmanesh ◽  
Majid Afyuni ◽  
Hassan Hadadzadeh
Keyword(s):  
Salt Stress ◽  
Amino Acid ◽  
Nutrient Solution ◽  
Solution Culture ◽  
Oxidative Damages ◽  
Nutrient Solution Culture

The effect of sulphate on the selenium content of pasture plants

1974 ◽  
Vol 14 (69) ◽  
pp. 533 ◽  
Author(s):  
JE Pratley ◽  
JD McFarlane
Keyword(s):  
Nutrient Solution ◽  
Solution Culture ◽  
Animal Production ◽  
Selenium Content ◽  
Culture Experiment ◽  
Nutrient Solution Culture ◽  
Dilution Effects ◽  
Pasture Plants

In the three experiments reported, the selenium content of pastures was shown to be substantially affected by applications of sulphate fertilizer. Where pasture yields responded to sulphur topdressing, selenium levels in the legumes present were reduced by as much as 50 per cent due largely to yield dilution effects. On a second site, where pasture responses to sulphur were not obtained, selenium levels were also depressed, in this case indicating the existence of an antagonism between sulphur and selenium. A subsequent nutrient solution culture experiment indicated that an antagonism existed between sulphate and both selenate and selenite forms, with the effects being much stronger in the case of the selenate. The implications in animal production of the effects of applied sulphur on pasture selenium levels and of the associated increases in pasture sulphur levels are discussed.

Sign in / Sign up

Export Citation Format

Share Document