THE EFFECT OF Ca AND Mg CONCENTRATIONS IN NUTRIENT SOLUTION ON THE DRY MATTER YIELD AND Ca, Mg AND K CONTENT OF BARLEY (Hordeum vulgare L.)

1987 ◽  
Vol 67 (4) ◽  
pp. 857-865 ◽  
Author(s):  
C. A. GRANT ◽  
G. J. RACZ
Keyword(s):  
Hordeum Vulgare ◽  
Nutrient Solution ◽  
Dry Matter ◽  
Solution Culture ◽  
Hordeum Vulgare L ◽  
Matter Production ◽  
K Deficiency ◽  
Nutrient Solution Culture ◽  
Calcium Magnesium ◽  
High Concentrations

Dry matter production by barley grown in nutrient solution culture was reduced by concentrations of Ca or Mg greater than 8 mmol L−1. Johnston barley was somewhat more sensitive to high levels of Ca and Mg than Bonanza. High concentrations of Ca or Mg did not inhibit uptake of K by the plant. Therefore, the reduction in barley growth was directly caused by excessive levels of Ca and Mg, and not due to a K deficiency induced by excess Ca or Mg. Key words: Calcium, magnesium, potassium, nutrient solution, barley, Hordeum vulgare

Metribuzin Absorption and Translocation in Two Barley (Hordeum vulgare) Cultivars

Weed Science ◽  
1986 ◽  
Vol 34 (4) ◽  
pp. 491-495 ◽  
Author(s):  
Stanislaw W. Gawronski ◽  
Lloyd C. Haderlie ◽  
Jeffrey C. Stark
Keyword(s):  
Hordeum Vulgare ◽  
Water Uptake ◽  
Nutrient Solution ◽  
Solution Culture ◽  
Foliar Absorption ◽  
Barley Cultivars ◽  
Root Absorption ◽  
Nutrient Solution Culture

Root and foliar absorption and translocation of14C-metribuzin [4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one] were determined in tolerant (‘Steptoe’) and susceptible (‘Morex’) barley (Hordeum vulgareL.) cultivars grown in nutrient solution culture under greenhouse conditions. Root-applied metribuzin toxicity to the two barley cultivars was also examined. A 50% reduction in growth occurred at 0.22 and 0.72 μM metribuzin for Morex and Steptoe, respectively. Root absorption was similar for both cultivars at 1 day, but Steptoe absorbed about two times more metribuzin 4 and 8 days after application than did Morex. Steptoe absorbed 19% of the total applied metribuzin by 8 days. Root absorption was positively correlated with water uptake (r≥ 0.87). Leaf absorption was three times greater for Morex than for Steptoe after 4 days. Transport to leaves from root application was rapid, and, by 1 and 8 days, leaves of Steptoe contained 71 and 82% and leaves of Morex 78 and 84% of the total absorbed14C, respectively. Translocation was apoplastic following both root and leaf absorption and was similar for both cultivars. Differential tolerance could partially be accounted for by differences in foliar absorption but not by differences in root absorption.

EFFECTS OF BARLEY INTRACOLEOPTILAR INTERNODE LENGTH AND EFFECTIVE XYLEM RADIUS ON WATER USE AND DRY MATTER PRODUCTION

1988 ◽  
Vol 68 (1) ◽  
pp. 57-63
Author(s):  
R. B. IRVINE ◽  
M. C. THERRIEN
Keyword(s):  
Hordeum Vulgare ◽  
Water Use ◽  
Dry Matter ◽  
Field Experiments ◽  
Hordeum Vulgare L ◽  
Barley Cultivars ◽  
Matter Production ◽  
Available Soil Moisture ◽  
Series Of Experiments ◽  
Measured Water

A series of experiments was conducted to determine if altering the length and effective xylem radius (EXR) of the intracoleoptilar internode (ICI) of barley (Hordeum vulgare L.) would alter water use and increase yields. Uniculm barley genotype F73-1 with long ICI conserved soil water from seeding to maturity, on a very restricted water supply. However, plants with long ICI did not produce significantly more (P > 0.1) dry matter or grain despite using less water per gram of dry matter produced. Plants of cultivar Abee, which have short ICI, used more water than plants with long ICI, under sample available soil moisture. Over a 3-h period, measured water loss for short ICI plants was, on average, 2.32 g vs. 1.37 g for long ICI plants. Progeny selected from the cross Abee/TR450 with genetically long ICI and small EXR, and those with short ICI and large EXR did not differ in water use or in amount of dry matter produced. When 16 barley cultivars were sown on a light-textured soil at 4 and 7 cm seeding depths, there was no cultivar by seeding depth interaction in any of four field experiments conducted. The cultivar Abee, with a long ICI and small EXR, did not produce higher yields. While increasing the length of the ICI of a given genotype and reducing its EXR may be of value under extreme conditions where plants are growing on stored subsoil moisture, this trait appears to be of little use in improving grain yields on drought-prone sandy soils in the eastern prairie region of western Canada.Key words: Barley, Hordeum vulgare, intracoleoptilar internode, effective xylem radius, drought tolerance

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

scholarly journals Content of inorganic solutes in lettuce grown with brackish water in different hydroponic systems

2017 ◽  
Vol 21 (3) ◽  
pp. 150-155 ◽  
Author(s):  
Alide M. W. Cova ◽  
Fabio T. O. de Freitas ◽  
Paula C. Viana ◽  
Maria R. S. Rafael ◽  
André D. de Azevedo Neto ◽  
...  
Keyword(s):  
Fresh Water ◽  
Nutrient Solution ◽  
Brackish Water ◽  
Dry Matter ◽  
Dry Matter Production ◽  
Matter Production ◽  
Water Plant ◽  
Hydroponic Systems ◽  
Inorganic Solutes

ABSTRACT The objective of this study was to evaluate the growth and accumulation of ions in lettuce grown in different hydroponic systems and recirculation frequencies. The experimental design was randomized blocks with 8 treatments and 4 replicates. The evaluated hydroponic systems were Nutrient Flow Technique (NFT) and an adapted Deep Flow Technique (DFT), the latter with recirculation frequencies of 0.25, 2 and 4 h. Both systems used fresh water and brackish water. Plant growth, accumulation of inorganic solutes (Na+, K+, Cl- and NO3-) and the correlation between dry matter production and Na+/K+ and Cl-/NO3- were evaluated. The salinity of the water used to prepare the nutrient solution caused decrease in growth and K+ and NO3- levels, and increased contents of Na+ and Cl- in the plants. When using fresh water the highest dry matter production was obtained in the NFT system. In case of brackish water the adapted DFT system increased the production, in relation to NFT system (at same recirculation frequency: 0.25 h). It was found that the choice of the type of hydroponic system and recirculation interval for the cultivation of lettuce depends on the quality of the water used to prepare the nutrient solution.

scholarly journals Growth and mineral nutrition of Solanum americanum

2010 ◽  
Vol 28 (2) ◽  
pp. 293-299 ◽  
Author(s):  
S. Bianco ◽  
L.B. Carvalho ◽  
M.S. Bianco
Keyword(s):  
Experimental Design ◽  
Nutrient Solution ◽  
Mineral Nutrition ◽  
Dry Matter ◽  
Dry Matter Production ◽  
Perennial Crops ◽  
Greenhouse Trial ◽  
Matter Production ◽  
Solanum Americanum ◽  
Experimental Stage

A greenhouse trial was carried out from November 1995 to April 1996 at FCAV/UNESP, Brazil, aiming to study the dry matter production and the accumulation and distribution of macronutrients in Solanum americanum, an important weed for annual and perennial crops in Brazil. The plants were grown in seven liter pots with sand substrate, irrigated daily with Hoagland & Arnon nutrient solution. The experimental design was completely randomized with four replicates. The treatments corresponded to evaluation times at 14 day intervals, beginning 21 days after emergence (DAE). In each evaluation, the plants of four pots were analyzed for dry matter production and macronutrient content. S. americanum had a small dry matter and macronutrient accumulation at the beginning of the experimental stage, increasing after 77 DAE and reaching the maximum theoretical value at 142, 142, 164, 149, 140, 149 and 152 DAE, for dry matter, N, P, K, Ca, Mg, and S, respectively. K and N were the most accumulated macronutrients for S. americanum plants.

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
Sign in / Sign up

Export Citation Format

Share Document