Joint action of root-absorbed mixtures of auxin herbicides in Sinapis alba L. and barley (Hordeum vulgare L.)

Weed Research ◽  
1987 ◽  
Vol 27 (5) ◽  
pp. 337-347 ◽  
Author(s):  
J. C. STREIBIG
Keyword(s):  
Hordeum Vulgare ◽  
Joint Action ◽  
Sinapis Alba ◽  
Hordeum Vulgare L ◽  
Sinapis Alba L ◽  
Auxin Herbicides

scholarly journals Ecotoxicity of In-Situ Produced Compost Intended for Landfill Restoration

Environments ◽  
2018 ◽  
Vol 5 (10) ◽  
pp. 111
Author(s):  
Magdalena Vaverková ◽  
Dana Adamcová ◽  
Maja Radziemska ◽  
Jan Zloch ◽  
Martin Brtnický ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Plant Biomass ◽  
Treatment Method ◽  
Sinapis Alba ◽  
White Mustard ◽  
Hordeum Vulgare L ◽  
Sinapis Alba L ◽  
Germinating Capacity ◽  
Biological Tests ◽  
Ecotoxicity Tests

Municipal solid waste (MSW) has become a matter of increasing global concern. Biological conversion is considered to be the most applicable disposal method, especially for the organic fraction of MSW. The aim of this study was to evaluate composting as a treatment method for the sustainable management and recycling of MSW and to test the ecotoxicity of the compost produced on the landfill surface. The ecotoxicity of the compost was investigated by means of a set of biological tests. The ecotoxicological impact of the compost was evaluated by plant growth tests with white mustard (Sinapis alba L.) and barley (Hordeum vulgare L.). Plants were grown under controlled conditions for 21 days, in earthen pots, treated with MSW compost (MSWC) to study the effect of MSWC on plant biomass production. Sprouts and the number of growing plants occurring in the earthen pots were counted. The values obtained from three simultaneously conducted experiments were averaged and presented. Plants growing in the earthen pots with the compost exhibited increasing plant biomass while no changes were observed in their appearance; retarded growth or necrotic changes were not recorded. The ecotoxicity tests performed show that the analyzed compost produced in the composting plant situated on the landfill surface achieved high percentages of the germinating capacity of white mustard (Sinapis alba L.) and barley (Hordeum vulgare L.) seeds and can be therefore used in the subsequent reclamation of the landfill concerned.

scholarly journals A talaj arzénterhelésének hatása a kísérleti növények arzéntartalmára nehézfémterheléses tartamkísérletben

2017 ◽  
Vol 12 (3) ◽  
pp. 119-125
Author(s):  
László Szegedi ◽  
Péter Tamás Nagy
Keyword(s):  
Hordeum Vulgare ◽  
Pisum Sativum ◽  
Medicago Sativa ◽  
Cannabis Sativa ◽  
Sinapis Alba ◽  
Hordeum Vulgare L ◽  
Sinapis Alba L ◽  
Pisum Sativum L ◽  
Medicago Sativa L

Az 1994 őszén az Eszterházy Károly Egyetem Tass-pusztai Tangazdaságában csernozjom barna erdőtalajon szabadföldi kisparcellás nehézfémterheléses tartamkísérlet indult 8 elem (Al, As, Cd, Cr, Cu, Hg, Pb, Zn) vízoldható sóival, 3 terhelési szinten (30, 90 és 270 kg elem/ha), 3 ismétlésben. Jelzönövényként 1998-ban borsó (Pisum sativum L.), 1999-ben silócirok (Sorghum bicolorL.), 2001-ben őszi árpa (Hordeum vulgare L.), 2002-ben fehérmustár (Sinapis alba L.), 2003- ban rostkender (Cannabis sativa L.) és 2005-ben lucerna (Medicago sativa L.) termesztésére került sor. A kísérlet során vizsgáltuk a talaj és a növények nehézfémtartalmát, amelynek ismeretében nyomon követhető a vizsgált elemek talajban való viselkedésének és talaj-növény rendszerben való mobilitásnak alakulása. Az arzén kifejezett depresszív hatása a kísérlet első két évében mutatkozott meg, a kísérlet további éveiben a vizsgált növények esetén mérséklődött, majd megszűnt. Az arzén a maximális terhelésnél sem dúsult a növényi szervekben, mindössze néhány növény vegetatív szerve mutatott némi akkumulációt. A kísérleti növények szemtermése védettnek bizonyult az arzénszennyezéssel szemben. A kísérleti eredmények alapján kijelenthető, hogy az arzén mozgása gátolt a talaj-növény rendszerben, mozgékonysága a kísérlet negyedik évétől jelentősen csökkent. 

Ultrastructure and Senescence in an Achloroplastic Mutant of Hordeum vulgare L. cv. Dyan

1992 ◽  
Vol 50 (1) ◽  
pp. 844-845
Author(s):  
R.H.M. Cross ◽  
C.E.J. Botha ◽  
A.K. Cowan ◽  
B.J. Hartley
Keyword(s):  
Cell Wall ◽  
Hordeum Vulgare ◽  
Leaf Tissue ◽  
Ultrastructural Changes ◽  
Hordeum Vulgare L ◽  
Mesophyll Cells ◽  
Lethal Mutant ◽  
Cytoplasmic Matrix ◽  
Close Proximity ◽  
Pinocytotic Vesicles

Senescence is an ordered degenerative process leading to death of individual cells, organs and organisms. The detection of a conditional lethal mutant (achloroplastic) of Hordeum vulgare has enabled us to investigate ultrastructural changes occurring in leaf tissue during foliar senescence.Examination of the tonoplast structure in six and 14 day-old mutant tissue revealed a progressive degeneration and disappearance of the membrane, apparently starting by day six in the vicinity of the mitochondria associated with the degenerating proplastid (Fig. 1.) where neither of the plastid membrane leaflets is evident (arrows, Fig. 1.). At this stage there was evidence that the mitochondrial membranes were undergoing retrogressive changes, coupled with disorganization of cristae (Fig. 2.). Proplastids (P) lack definitive prolamellar bodies. The cytoplasmic matrix is largely agranular, with few endoplasmic reticulum (ER) cisternae or polyribosomal aggregates. Interestingly, large numbers of actively-budding dictysomes, associated with pinocytotic vesicles, were observed in close proximity to the plasmalemma of mesophyll cells (Fig. 3.). By day 14 however, mesophyll cells showed almost complete breakdown of subcellular organelle structure (Fig. 4.), and further evidence for the breakdown of the tonoplast. The final stage of senescence is characterized by the solubilization of the cell wall due to expression and activity of polygalacturonase and/or cellulose. The presence of dictyosomes with associated pinocytotic vesicles formed from the mature face, in close proximity to both the plasmalemma and the cell wall, would appear to support the model proposed by Christopherson for the secretion of cellulase. This pathway of synthesis is typical for secretory glycoproteins.

ИЗМЕНЧИВОСТЬ ЯЧМЕНЯ (Hordeum vulgare L.) РАЗНОГО ГЕОГРАФИЧЕСКОГО ПРОИСХОЖДЕНИЯ ПО ЭЛЕМЕНТАМ СТРУКТУРЫ УРОЖАЯ

2012 ◽  
pp. 33-40
Author(s):  
А.В. ЖЕЛЕЗНОВ ◽  
◽  
Н.Б. ЖЕЛЕЗНОВА ◽  
Т.В. КУКОЕВА ◽  
Н.В. БУРМАКИНА ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Hordeum Vulgare L
Sign in / Sign up

Export Citation Format

Share Document