Role of Calcium on Phenolic Compounds and Enzymes Related to Lignification in Soybean (Glycine max L.) Root Growth

2006 ◽  
Vol 49 (1) ◽  
pp. 69-76 ◽  
Author(s):  
Aline Finger Teixeira ◽  
Aneliz de Bastos Andrade ◽  
Osvaldo Ferrarese-Filho ◽  
Maria de Lourdes Lucio Ferrarese
Keyword(s):  
Glycine Max ◽  
Phenolic Compounds ◽  
Root Growth ◽  
Glycine Max L

Soybean (Glycine max (L) Merrill) Root Growth and Nodulation Responses to Different Soil Moisture Regimes

2019 ◽  
Vol 22 (2) ◽  
pp. 153-159
Author(s):  
Louis Hortensius Mwamlima ◽  
Josephine Pamela Ouma ◽  
Erick Kimutai Cheruiyot
Keyword(s):  
Soil Moisture ◽  
Glycine Max ◽  
Root Growth ◽  
Moisture Regimes ◽  
Glycine Max L

Root responses of triticale and soybean to soil compaction in the field are reproducible under controlled conditions

2016 ◽  
Vol 43 (2) ◽  
pp. 114 ◽  
Author(s):  
Tino Colombi ◽  
Achim Walter
Keyword(s):  
Root Growth ◽  
Soil Compaction ◽  
Root Systems ◽  
Oxygen Availability ◽  
Compacted Soils ◽  
Root Branching ◽  
Controlled Conditions ◽  
Glycine Max L ◽  
Limited Oxygen

Soil compaction includes a set of underlying stresses that limit root growth such as increased impedance and limited oxygen availability. The aims of the present study were to (i) find acclimations of triticale (× Triticosecale) and soybean (Glycine max L.) roots to compacted soils in the field; (ii) reproduce these under controlled conditions; and (iii) associate these responses with soil physical properties. To this end, plants were grown at two different soil bulk densities in the field and under controlled conditions representing mature root systems and the seedling stage respectively. Diameters, lateral branching densities, the cortical proportion within the total root cross-section and the occurrence of cortical aerenchyma of main roots were quantified. Soil compaction caused decreasing root branching and increasing cortical proportions in both crops and environments. In triticale, root diameters and the occurrence of aerenchyma increased in response to compaction in the field and under controlled conditions. In soybean, these acclimations occurred at an initial developmental stage but due to radial root growth not in mature roots. These results showed that responses of root systems to compacted soils in the field are, to a large extent, reproducible under controlled conditions, enabling increased throughput, phenotyping-based breeding programs in the future. Furthermore, the occurrence of aerenchyma clearly indicated the important role of limited oxygen availability in compacted soils on root growth.

scholarly journals Effect of Nitrate on Nodule and Root Growth of Soybean (Glycine max (L.) Merr.)

2014 ◽  
Vol 15 (3) ◽  
pp. 4464-4480 ◽  
Author(s):  
Akinori Saito ◽  
Sayuri Tanabata ◽  
Takanari Tanabata ◽  
Seiya Tajima ◽  
Manabu Ueno ◽  
...  
Keyword(s):  
Glycine Max ◽  
Root Growth ◽  
Glycine Max L

scholarly journals Novel Topological-Architectural Parameters of Root Growth in Soybean (Glycine max (L.) Merrill) to Determine the Presence of Soil Mechanical Impedance

2018 ◽  
Vol 11 (3) ◽  
pp. 1-13
Author(s):  
Julio C�sar Ramos ◽  
Gabriel C�ccoli ◽  
Elisa Soledad Panigo ◽  
Ignacio Miguel Dellaferrera ◽  
Gonzalo Moras ◽  
...  
Keyword(s):  
Glycine Max ◽  
Root Growth ◽  
Mechanical Impedance ◽  
Glycine Max L

SOME EFFECTS OF NITRATE ON SOYBEAN ROOT DEVELOPMENT

1986 ◽  
Vol 66 (3) ◽  
pp. 505-510 ◽  
Author(s):  
J. A. STONE ◽  
B. R. BUTTERY
Keyword(s):  
Glycine Max ◽  
Field Test ◽  
Dry Weight ◽  
Nodule Development ◽  
Root Extension ◽  
Morphological Aspects ◽  
Growth Room ◽  
Glycine Max L ◽  
Top Dry Weight

The objective of this study was to determine the effect of nitrate on some morphological aspects of soybean (Glycine max (L.) Merr.) root growth and to determine the role of drainage in the response. Two indeterminate soybean cultivars were grown on 0, 10 and 40% mixtures of perlite and Brookston clay loam, supplied with Bradyrhizobium japonicum strain USDA 110, and watered with nutrient solutions containing 0 or 6 mM nitrate. Plants were grown in acrylic tubes until 21 and 53 d after emergence in corresponding field and growth room experiments, respectively. Response variables measured were the rate of taproot extension, root counts at the acrylic-soil interface, and top, root, and nodule dry weight. Nitrate suppressed nodule development and increased top dry weight but had no effect on the rate of taproot extension. Nitrate increased root counts and root dry weights in the field test, but decreased root counts in the growth room test. Top:root ratio was increased in the growth room but not in the field test. Increasing the proportion of perlite generally increased rates of root extension, root counts, and top dry weights in the field and growth room experiments. However, the soil mixture had no effect on nodule dry weight at either location, or on root dry weight in the growth room.Key words: Root extension, Glycine max, indeterminate, drainage

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