Soybean (Glycine max [L.] merrill) as a short-term assay for study of environmental mutagen

1982 ◽  
Vol 99 (3) ◽  
pp. 339-347 ◽  
Author(s):  
Baldev K. Vig
Keyword(s):  
Glycine Max ◽  
Short Term ◽  
Environmental Mutagen ◽  
Glycine Max L

Short-term recovery of Bradyrhizobium japonicum during an inoculation process using mineral microgranules

1994 ◽  
Vol 40 (4) ◽  
pp. 322-325 ◽  
Author(s):  
Georges Fouilleux ◽  
Cécile Revellin ◽  
Gérard Catroux
Keyword(s):  
Glycine Max ◽  
Moisture Content ◽  
Bradyrhizobium Japonicum ◽  
Water Retention ◽  
Short Term ◽  
Relative Water ◽  
Glycine Max L ◽  
Retention Characteristics ◽  
Granule Type ◽  
Commercial Inoculants

Soybean (Glycine max (L.) Merr.) can be inoculated by delivering inoculant mixed with mineral microgranules to the seedbed. An average decline of 0.61 log units in the number of viable Bradyrhizobium japonicum was found during the 1sth, using available commercial inoculants and granules. These losses were shown to be influenced by inoculant type (peat based, liquid, lyophilized) and granule type. When mixed with granules, a peat-based inoculant was found to be desiccated immediately and subjected to a water potential as low as −170 MPa. Bradyrhizobium japonicum recovery was improved when the moisture content of the granules increased. It was concluded that water suction by granules can subject the bacteria to rapid desiccation and significantly decrease their number. Thus, the nature of inoculant and granular material and their relative water retention characteristics must be taken into account to improve the efficiency of this inoculation process.Key words: Bradyrhizobium japonicum, granular inoculant, inoculation, soybean, survival.

Effect of Oxygen Supply on Nitrogenase Activity of Nitrate- and Dark-Stressed Soybean (Glycine max (L.) Merr.) Plants

1987 ◽  
Vol 14 (6) ◽  
pp. 679 ◽  
Author(s):  
BJ Carroll ◽  
AP Hansen ◽  
DL Mcneil ◽  
PM Gresshoff
Keyword(s):  
Glycine Max ◽  
Nitrogenase Activity ◽  
Root Nodules ◽  
Short Term ◽  
Glycine Max L ◽  
Autonomous Activity ◽  
Effect Of Oxygen ◽  
Substrate Deprivation ◽  
Dark Stress ◽  
Oxygen Concentrations

Nitrate and dark stress were used to induce decline in nitrogenase activity of root nodules of soybeans (Glycine max (L.) Merr. cv. Bragg). Response to this treatment and to various oxygen concentrations was assessed by short-term acetylene reduction assays. Decreases in oxygen partial pressure reduced nitrogenase activity substantially in unstressed soybean nodules and even further in nodules of nitrate- or dark-stressed plants. Increasing oxygen concentrations from 21 to 60% severely restricted nitrogenase activity in control plants, but stimulated activity in soybeans exposed to 10 mol m-3 nitrate or darkness for 2 days. Less stressed plants (treated with 7.5 mol m-3 nitrate) were stimulated less by high oxygen tension. Soybeans deprived of light for 4 days were symbiotically inactive and did not respond to raised O2 concentrations. Bacteroids isolated from these plants had lost their autonomous activity but recovered in the presence of succinate, indicating substrate deprivation. The data presented suggest that suboptimal oxygen concentration near the bacteroids is an important factor limiting nitrogenase activity in nitrate-or dark-stressed soybeans.

scholarly journals Effects of Short-Term Exposure to Diesel Exhaust on the Ecophysiology, Growth, and Fecundity of Soybean (Glycine max (L.) Merr.) and Chicory (Cichorium intybus L.)

2021 ◽  
Vol 121 (2) ◽  
pp. 21-32
Author(s):  
Susan Y. Jaconis ◽  
Theresa M. Culley ◽  
Timothy Keener ◽  
Alexandra M. Odom ◽  
Robert Elam ◽  
...  
Keyword(s):  
Glycine Max ◽  
Plant Species ◽  
Diesel Exhaust ◽  
Recovery Period ◽  
Ambient Air ◽  
Cichorium Intybus ◽  
Short Term ◽  
Diesel Exhaust Exposure ◽  
Glycine Max L ◽  
The Impact

Plants growing along roadways are often exposed to vehicle exhaust containing both particulate matter (PM) and various gases that could affect gas exchange and thus plant reproduction. To investigate effects of diesel exhaust exposure on plant ecophysiology, growth, and fecundity, individuals of soybean (Glycine max (L.) Merr.) and chicory (Cichorium intybus L.) were exposed to either exhaust from a diesel generator or ambient air. Exposure occurred daily over a 5-day period (beginning 18 June 2013) using open-top chambers in an agricultural field in southwestern Ohio, United States. Plants were evaluated at 3 times (before, directly after exposure, and following a 5.5-week post-treatment recovery period) for photosynthetic rate (A), stomatal conductance (g), water use efficiency (WUE), stomatal clogging due to PM deposition, and number of nodes. Aboveground biomass, fruit number, mean seed number, and seed mass were measured for soybean after the recovery period. In soybean, A minimally decreased with exposure to diesel exhaust (compared to the control), but an increase in g and a decrease in WUE were detected after the exhaust treatment. Chicory exhibited a relatively low increase in A after the treatment, but there were no clear differences in g or WUE. Growth and fecundity were similar among all soybean plants directly after treatment, but after 5.5 weeks plants exposed to diesel exhaust had increased vegetative biomass while exhibiting no difference in fecundity. These plant species reacted differently to short-term diesel exhaust exposure, suggesting that the impact of diesel exhaust will depend on both the plant species and its physiology.

Physiological responses of two soybean [Glycine max (L.) Merr] cultivars to short-term flooding

1990 ◽  
Vol 30 (1) ◽  
pp. 85-92 ◽  
Author(s):  
D.M. Oosterhuis ◽  
H.D. Scott ◽  
R.E. Hampton ◽  
S.D. Wullschleger
Keyword(s):  
Glycine Max ◽  
Physiological Responses ◽  
Short Term ◽  
Glycine Max L

Prevalence of the pit and antipit in the genus Glycine

1987 ◽  
Vol 45 ◽  
pp. 986-987
Author(s):  
R. W. Yaklich ◽  
E. L. Vigil ◽  
W. P. Wergin
Keyword(s):  
Amino Acids ◽  
Endoplasmic Reticulum ◽  
Glycine Max ◽  
Seed Coat ◽  
Cell Types ◽  
Abaxial Surface ◽  
Legume Seed ◽  
Initial Report ◽  
Cone Cells ◽  
Glycine Max L

The legume seed coat is the site of sucrose unloading and the metabolism of imported ureides and synthesis of amino acids for the developing embryo. The cell types directly responsible for these functions in the seed coat are not known. We recently described a convex layer of tissue on the inside surface of the soybean (Glycine max L. Merr.) seed coat that was termed “antipit” because it was in direct opposition to the concave pit on the abaxial surface of the cotyledon. Cone cells of the antipit contained numerous hypertrophied Golgi apparatus and laminated rough endoplasmic reticulum common to actively secreting cells. The initial report by Dzikowski (1936) described the morphology of the pit and antipit in G. max and found these structures in only 68 of the 169 seed accessions examined.

PENGARUH PEMBERIAN PUPUK ORGANIK CAIR ASAL LIMBAH TERHADAP SERAPAN HARA SERTA PRODUKSI TANAMAN KEDELAI DI LAHAN GAMBUT

2017 ◽  
Vol 2 (02) ◽  
pp. 204-218
Author(s):  
Hendra Saputra ◽  
Intan Sari ◽  
Muhammad Arfah
Keyword(s):  
Glycine Max ◽  
Glycine Max L

Penelitian tentang pengaruh pemberian Pupuk organik cair (POC) asal limbah tumbuhan terhadap serapan hara N dan P serta produksi tanaman kedelai (Glycine max (L) Merrill) di lahan gambut telah dilaksanakan di kampus II Unisi Fakultas Pertanian Jl. Lintas Propinsi Parit 01, Desa Pulau Palas, Kecamatan Tembilahan Hulu, Kabupaten Indragiri Hilir Propinsi Riau. Dimulai dari bulan Agustus sampai bulan Oktober 2013. Tujuan dari penelitian ini untuk mendapatkan POC asal limbah tumbuhan yang terbaik untuk serapan hara N dan P serta produksi tanaman kedelai di lahan gambut. Penelitian ini menggunakan rancangan acak kelompok (RAK) faktor tunggal dengan 7 perlakuan dan 4 ulangan, 2 tanaman dijadikan sampel. Perlakuan dosis POC limbah tanaman pisang dan POC limbah sayur kol yang diberikan yaitu 0 L/Ha, 200 L/Ha, 400 L/Ha dan 600 L/Ha. Parameter pengamatan yaitu : serapan hara N dan P pada fase awal generatif, tinggi tanaman, jumlah bintil akar, polong hampa, produksi perplot, berat 100 biji dan brangkasan kering. Data pengamatan dianalisis dengan sidik ragam (ANOVA) dan dilanjutkan dengan Uji Lanjut Tukey HSD pada taraf 5%. Berdasarkan penelitian yang telah dilaksanakan dapat disimpulkan bahwa pemberian POC asal limbah tumbuhan tidak berpengaruh nyata terhadap serapan hara N dan P, tinggi tanaman, jumlah bintil akar, polong hampa, brangkasan kering tetapi berpengaruh nyata terhadap produksi perplot dan berat 100 biji.

PERTUMBUHAN DAN HASIL SEMBILAN KULTIVAR KEDELAI (Glycine max (L.) Merrrill) DI LAHAN SAWAH

2018 ◽  
Vol 1 (2) ◽  
pp. 96
Author(s):  
Siti Wahyuni ◽  
Umi Trisnaningsih ◽  
Meilina Prasetyo
Keyword(s):  
Glycine Max ◽  
Glycine Max L

COPPER AND ZINC INDUCED CHANGES IN SOYBEAN (Glycine max (L.) Merr.)

1970 ◽  
pp. 09
Author(s):  
K. SANKAR GANESH ◽  
P. SUNDARAMOORTHY
Keyword(s):  
Heavy Metals ◽  
Glycine Max ◽  
Aquatic Environment ◽  
Morphological Traits ◽  
Industrial Activities ◽  
Copper And Zinc ◽  
Glycine Max L ◽  
Zinc Concentrations ◽  
Induced Changes

Heavy metals are one of the most important pollutants released to the aquatic environment by the various industrial activities. The use of these wastewater for irrigation results accumulation of heavy metals in soil and plants. So, the present investigation deals with the various concentrations (0, 5, 10, 25, 50, 100, 200 and 300 mg/l) of copper and zinc on germination studies of soybean. The different concentrations of copper and zinc were used for germination studies. The seedlings were allowed to grow upto seven days. The studied morphological traits increased at 5 mg/l concentration and these parameters are gradually decreased with the increase of copper and zinc concentrations.

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