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1. Calcium enhancement of shoot organogenesis in salinity-stressed tomato explants

Author:
El-enany, A. E.
Source:
Acta agronomica Academiae Scientiarum Hungaricae 2001 v.49 no.1 pp. 35-42
ISSN:
0238-0161
Subject:
calcium; cotyledons; explants; hypocotyls; mineral content; organogenesis; osmotic pressure; potassium; salinity; sodium; sodium chloride; tomatoes; water content; Egypt
Abstract:
... Acta Agronomica Hungarica, 49(1), pp. 35–42 (2001) CALCIUM ENHANCEMENT OF SHOOT ORGANOGENESIS IN SALINITY-STRESSED TOMATO EXPLANTS A. E. EL-ENANY, A. A. ISSA and R. ABDEL-BASSET BOTANY DEPARTMENT, FACULTY OF SCIENCE, UNIVERSITY OF ASSIUT, ASSIUT, EGYPT Received: 25 October, 2000; accepted: 15 February, 2001 Efficient de novo shoot organogenesis from hypocotyl and cotyledons was studied under NaCl- ...
DOI:
10.1556/AAgr.49.2001.1.4

2. Effect of dates and rates of sowing on yield and yield components of narbon vetch under semi-arid conditions

Author:
Tawaha, A. M.; Turk, M. A.
Source:
Acta agronomica Academiae Scientiarum Hungaricae 2001 v.49 no.1 pp. 103-105
ISSN:
0238-0161
Subject:
Vicia narbonensis; field experimentation; grain yield; pods; semiarid zones; sowing; winter; yield components; Jordan
Abstract:
... Field experiments were conducted during the winter seasons of 1998–1999 and 1999–2000 at Houfa in northern Jordan, to study the effect of the date and rate of sowing on the yield and yield components of narbon vetch (Vicia narbonensis L.). Progressive delays in sowing beyond 1 st January led to yield reductions of 11.1 and 17.9 at successive 15-day intervals. Plant height, pods stem –1, stems m –2 ...
DOI:
10.1556/AAgr.49.2001.1.13

3. Effects of water supply and sowing date on performance and essential oil production of anise (pimpinella anisum l.)

Author:
Zehtab-salmasi, S.; Javanshir, A.; Omidbaigi, R.; Alyari, H.; Ghassemi-golezani, K.
Source:
Acta agronomica Academiae Scientiarum Hungaricae 2001 v.49 no.1 pp. 75-81
ISSN:
0238-0161
Subject:
Pimpinella anisum; anise; essential oils; grain yield; greenhouse experimentation; greenhouses; inflorescences; leaf area; lipid content; oils; plant available water; roots; seeds; shoots; sowing date; spring; stem elongation; water content; water supply
Abstract:
... Field and greenhouse experiments were carried out in order to determine the effects of water supply and sowing date on the performance and essential oil production of anise (Pimpinella anisum L.). The results indicated that mean leaf area (LA), specific leaf area (SLA), relative growth rate (RGR), relative water content (RWC), grain yield and essential oil decreased, while the root/shoot ratio and ...
DOI:
10.1556/AAgr.49.2001.1.9

4. Experimental improvement and evaluation of vertical intensive crown forms

Author:
Brunner, T.; Páldi, E.; Juhász, L.; Tóth, F.; Iváncsics, J.
Source:
Acta agronomica Academiae Scientiarum Hungaricae 2001 v.49 no.1 pp. 99-102
ISSN:
0238-0161
Subject:
crop yield; fruiting; pruning
Abstract:
... The physiologically-based pruning methods elaborated by the authors were found to increase intensity in various ways, including early fruiting, improved yield and quality, and a reduction in the height of the cropping area, allowing at least 80% of the fruit to be picked from the ground. Compared with the Lespinasse control, crowns with a valve-like central leader on a sectorial spindle gave a sur ...
DOI:
10.1556/AAgr.49.2001.1.12

5. Generation mean analysis of drought tolerance in wheat (triticum aestivum l.)

Author:
Farshadfar, E.; Ghanadha, -; Sutka, J.; Zahravi, M.
Source:
Acta agronomica Academiae Scientiarum Hungaricae 2001 v.49 no.1 pp. 59-66
ISSN:
0238-0161
Subject:
Triticum aestivum; biomass; drought tolerance; epistasis; genes; genetic background; genetic improvement; genetic techniques and protocols; genetic variation; greenhouses; harvest index; heritability; heterosis; hybrids; leaves; overdominance; water content; water stress; wheat
Abstract:
... To evaluate the genetic background of quantitative criteria of drought tolerance in wheat, six generations of a cross between the varieties of Plainsman and Cappelle Desprez were grown in a randomized complete block design with three replications in the greenhouse of the College of Agriculture of the University of Tehran in 1997. Genetic variation was found for yield potential (Yp), stressed yield ...
DOI:
10.1556/AAgr.49.2001.1.7

6. Heavy metals, sodium and sulphur in roadside topsoils and in the indicator plant chicory (cichorium intybus l.)

Author:
Simon, L.
Source:
Acta agronomica Academiae Scientiarum Hungaricae 2001 v.49 no.1 pp. 1-13
ISSN:
0238-0161
Subject:
Cichorium intybus; cadmium; chicory; chromium; copper; heavy metals; indicator species; lead; nickel; sodium; sulfur; zinc; Hungary
Abstract:
... The heavy metal (cadmium, Cd; chromium, Cr; copper, Cu; nickel, Ni; lead, Pb and zinc, Zn), sodium (Na) and sulphur (S) contamination of roadside topsoils and the accumulation of these elements in chicory (Cichorium intybus L.) as indicator plant was studied at different sites in Nyíregyháza (Hungary) between 1994 and 1996. In roadside urban topsoils (collected from a depth of 0–10 cm at a distanc ...
DOI:
10.1556/AAgr.49.2001.1.1

7. Influence of water stress conditioning on photosynthetic water stress response of switchgrass (panicum virgatum l.) and tall fescue (festuca arundinacea schreb.)

Author:
Kiss, Z.; Wolf, D. D.
Source:
Acta agronomica Academiae Scientiarum Hungaricae 2001 v.49 no.1 pp. 15-24
ISSN:
0238-0161
Subject:
Festuca arundinacea; Panicum virgatum; drought; drought tolerance; irrigation management; leaf conductance; leaf water potential; mesophyll; photosynthesis; stress response; tillers; water stress
Abstract:
... The objective of this study was to investigate the influence of water stress conditioning on the photosynthesis response of switchgrass (Panicum virgatum L.) and tall fescue (Festuca arundinacea Schreb.) to moisture deficiency. Tillers of the two species were grown in the same, controlled, environment and were subjected to three conditioning water stress cycles, or were kept well watered. After dr ...
DOI:
10.1556/AAgr.49.2001.1.2

8. MUTANTS OBTAINED BY CHRONIC GAMMA IRRADIATION FROM A CARPATHIAN-UKRAINIAN LOCAL SOYBEAN [Glycine max (L.) Merrill] VARIETY: I. M3 AND M4 GENERATIONS

Author:
Hajós-Novák, M.; Kőrösi, F.
Source:
Acta agronomica Academiae Scientiarum Hungaricae 2001 v.49 no.1 pp. 95-98
ISSN:
0238-0161
Subject:
Glycine max; fatty acid composition; gamma radiation; genetic variation; genotype; germplasm; lipid content; mutants; oils; pedigree; protein content; seeds; soybeans
Abstract:
... Mutant soybean germplasm was developed from a Carpathian-Ukrainian local variety, using 100–300 Gy chronic gamma irradiation to obtain lines with improved oil and/or protein content. The mutant germplasm was developed by the pedigree method. Selection for high oil and protein content started in the M3 generation. Plants with 24.1 and 23.6% oil content in the seeds were detected in the M4 generatio ...
DOI:
10.1556/AAgr.49.2001.1.11

9. No3 – affects carbohydrate losses from wheat roots

Author:
Amraoui, BenDriss M.
Source:
Acta agronomica Academiae Scientiarum Hungaricae 2001 v.49 no.1 pp. 43-52
ISSN:
0238-0161
Subject:
carbohydrates; carbon; nitrates; roots; seedlings; wheat
Abstract:
... The influence of NO3 – on carbohydrate (C) losses from the roots of 21-day-old wheat seedlings was studied under light and N supplies ranging from deficient to excessive (0–8 mM NO3 –). C loss is not influenced by the quantity of internal soluble carbohydrates (SC), but is affected by the nitrate status of the seedlings. In low illuminance, the NO3 – loss is significantly higher than that in high ...
DOI:
10.1556/AAgr.49.2001.1.5

10. Production of new tetraploid triticale forms

Author:
Arumugam, S.; Reddy, V. R. K.
Source:
Acta agronomica Academiae Scientiarum Hungaricae 2001 v.49 no.1 pp. 67-74
ISSN:
0238-0161
Subject:
agronomic traits; chromosome number; chromosomes; crossing; diploidy; progeny; rye; tetraploidy; triticale
Abstract:
... Attempts were made to produce tetraploid triticales by crossing 6x triticales with diploid rye. In F2, the chromosome number was reduced to between 15 and 23 except in three plants, where the chromosome number was 28, 32 and 38, respectively. An increased frequency of ring bivalents was observed in many F4 plants. In the progeny of the plant with 28 chromosomes, desired plants (four) with 2n = 28 ...
DOI:
10.1556/AAgr.49.2001.1.8

11. Role of different genome combinations on stability parameters in wheat and triticale

Author:
Arumugam, S.; Reddy, V. R. K.
Source:
Acta agronomica Academiae Scientiarum Hungaricae 2001 v.49 no.1 pp. 53-58
ISSN:
0238-0161
Subject:
genes; genotype; grain yield; models; phenotype; polyploidy; triticale; wheat
Abstract:
... The role of the different genome combinations in a polyploid on phenotypic stability was analysed in wheat and triticale. Twelve genotypes with four genome combinations (AABB, AABBDD, AABBRR and AABBDDRR) were raised in eight artificially created environments. The data on grains per spike, 100-grain weight and grain yield per plant were recorded and analysed following the models of Perkins and Jin ...
DOI:
10.1556/AAgr.49.2001.1.6

12. Salt stress response of salt-sensitive and tolerant durum wheat cultivars inoculated with mycorrhizal fungi

Author:
Al-Karaki, G. N.
Source:
Acta agronomica Academiae Scientiarum Hungaricae 2001 v.49 no.1 pp. 25-34
ISSN:
0238-0161
Subject:
Triticum turgidum subsp. durum; copper; cultivars; durum wheat; iron; irrigation water; mycorrhizal fungi; phosphorus; potassium; roots; saline soils; salinity; salt stress; salt tolerance; silty clay soils; sodium; sodium chloride; soil solution; stress response; symbiosis; zinc
Abstract:
... The effects of arbuscular mycorrhizal fungi (AMF) and salt stress on growth and nutrient acquisition in two durum wheat (Triticum durum Desf.) cultivars exhibiting differences in salt tolerance were investigated. The plants were grown in a sterilized, low P (silty clay) soil-sand mix. Three salt levels were created by adding NaCl solution to the soil through irrigation water, resulting in saturati ...
DOI:
10.1556/AAgr.49.2001.1.3

13. Water deficiency resistance study on soya and bean cultivars

Author:
Nemeskéri, E.
Source:
Acta agronomica Academiae Scientiarum Hungaricae 2001 v.49 no.1 pp. 83-93
ISSN:
0238-0161
Subject:
beans; cultivars; drought; irrigation; leaf area; maturity stage; models; oils; organic matter; pods; protein content; roots; seeds; soybeans; vegetation; water flow; water stress
Abstract:
... In a three-year model experiment the water deficiency resistance and the quality of yield were investigated in the case of soybean and bean cultivars of determined growth. The plants were grown under irrigated and non-irrigated conditions, modelling the conditions of drought. The soybean cultivars used a considerably higher amount of water before reaching the green pod maturity stage than the bean ...
DOI:
10.1556/AAgr.49.2001.1.10

14. An assessment of the agricultural trade impact of Spain's integration into the EU

Author:
Sanz, F.; Gil, J.M.
Source:
Canadian journal of agricultural economics 2001 v.49 no.1 pp. 53-69
ISSN:
0008-3976
Subject:
geographical distribution; equations; agricultural products; European Union; international trade; econometric models; economic impact; Spain
DOI:
10.1111/j.1744-7976.2001.tb00290.x

15. A welfare analysis of biological technical change under different supply shift assumptions: the case of cocoa in Malaysia

Author:
Gotsch, N.; Wohlgenant, M.K.
Source:
Canadian journal of agricultural economics 2001 v.49 no.1 pp. 87-104
ISSN:
0008-3976
Subject:
cocoa (beverage); perennials; biotechnology; welfare economics; mathematical models; Malaysia
DOI:
10.1111/j.1744-7976.2001.tb00292.x

16. Cattle and wildlife competition for forage: budget versus bioeconomic analyses of public range improvements in British Columbia

Author:
Kooten, G.C. van.; Stennes, B.; Bulte, E.H.
Source:
Canadian journal of agricultural economics 2001 v.49 no.1 pp. 71-86
ISSN:
0008-3976
Subject:
mathematical models; bioeconomic models; rangelands; cattle; grazing; forage; land use; wildlife; forests; British Columbia
DOI:
10.1111/j.1744-7976.2001.tb00291.x

17. Compatibility of government guarantees with flexibility in Canadian wheat price pooling

Author:
Unterschultz, J.; Novak, F.
Source:
Canadian journal of agricultural economics 2001 v.49 no.1 pp. 1-18
ISSN:
0008-3976
Subject:
wheat; Monte Carlo method; risk; Canada
DOI:
10.1111/j.1744-7976.2001.tb00287.x

18. Implementing the Kyoto Accord in Canada: abatement costs and policy enforcement mechanisms

Author:
Yiannaka, A.; Furtan, H.; Gray, R.
Source:
Canadian journal of agricultural economics 2001 v.49 no.1 pp. 105-126
ISSN:
0008-3976
Subject:
international agreements; carbon dioxide; mathematical models; pollution control; costs and returns; elasticities; environmental policy; emissions; Canada
DOI:
10.1111/j.1744-7976.2001.tb00293.x

19. Production risk, acreage decisions and implications for revenue insurance programs

Author:
Wu, J.; Adams, R.M.
Source:
Canadian journal of agricultural economics 2001 v.49 no.1 pp. 19-35
ISSN:
0008-3976
Subject:
corn; soybeans; farm income; costs and returns; insurance; governmental programs and projects; cropping systems; elasticities; decision making; mathematical models; regression analysis; risk; Corn Belt region
DOI:
10.1111/j.1744-7976.2001.tb00288.x

20. U.S. hog production and the influence of state water quality regulation

Author:
Metcalfe, M.
Source:
Canadian journal of agricultural economics 2001 v.49 no.1 pp. 37-52
ISSN:
0008-3976
Subject:
swine; environmental impact; water quality; state government; pollution control; profitability; production functions; mathematical models; livestock and meat industry; laws and regulations; United States
DOI:
10.1111/j.1744-7976.2001.tb00289.x