The role of endogenous growth regulators in the differentiation processes of walnut (Juglans regia L.)

1972 ◽  
Vol 14 (4) ◽  
pp. 273-278 ◽  
Author(s):  
Z. Sladký
Keyword(s):  
Endogenous Growth ◽  
Growth Regulators ◽  
Juglans Regia

scholarly journals Role of endogenous growth regulators in vernalization of seeds of radish (Raphanus sativus L.)

2014 ◽  
Vol 50 (4) ◽  
pp. 653-662
Author(s):  
Marian Michniewicz ◽  
Krystyna Kriesel ◽  
Barbara Rożej
Keyword(s):  
Endogenous Growth ◽  
Growth Regulators ◽  
Raphanus Sativus ◽  
Growth Stage ◽  
Cold Treatment ◽  
Flower Initiation ◽  
Raphanus Sativus L

In embryos and cotyledons of seeds of the radish cv. `Tetra Iłówiecka' (which needs 20 days of vernalization) and cv. 'Saxa' (which flowers without vernalization) germinating at a vernalizing temperature of 5°C, the levels of auxins, gibberellins, cytokinins and the aibscisic acid-like inhibitor were determined, The analyses were performed after 5, 10, 15, 20, 25 and 30 days of chilling. The levels of growth regulators were also determined in embryos and cotyledons of seeds germinated at 260C when in the same growth stage as the material taken from chilled seeds. Cold treatment significantly affected the level of all endogenous growth regulators in embryos and cotyledons of both varieties. However, changes in the levels of these substances were not directly connected with the vernalization process. It was found that the vernalization of seeds of 'the radish cv. `Tetra Iłówiecka' increased the level of GAs in leaves, this did not, however, coincide with flower initiation. It is concluded that the role of GAs in flowering of the studied plants is connected rather with photoinduction than with vernalization.

scholarly journals Role of Endogenous Growth Regulators in Seed Dormancy of Avena fatua

1982 ◽  
Vol 70 (5) ◽  
pp. 1480-1485 ◽  
Author(s):  
James D. Metzger ◽  
Deborah K. Sebesta
Keyword(s):  
Endogenous Growth ◽  
Seed Dormancy ◽  
Growth Regulators ◽  
Avena Fatua

The role of growth regulators in the differentiation of walnut buds (Juglans regia L.)

1971 ◽  
Vol 13 (5-6) ◽  
pp. 361-367 ◽  
Author(s):  
Vladimíra Langrová ◽  
Z. Sladký
Keyword(s):  
Growth Regulators ◽  
Juglans Regia

Study of antioxidant potential in leaves, stems, nuts of Juglans regia L.

2012 ◽  
Vol 1 (10) ◽  
pp. 79 ◽  
Author(s):  
G. Raja* ◽  
Ivvala Anand Shaker ◽  
Inampudi Sailaja ◽  
R. Swaminathan ◽  
S. Saleem Basha ◽  
...  
Keyword(s):  
Free Radicals ◽  
Free Radical ◽  
Antioxidant Activities ◽  
Radical Scavenging Activity ◽  
Juglans Regia ◽  
Radical Scavenging ◽  
Antioxidant Compounds ◽  
Free Radical Damage ◽  
Radical Damage

Natural antioxidants can protect the human body from free radicals and retard the progress of many chronic diseases as well as lipid oxidative rancidity in foods. The role of antioxidants has protected effect against free radical damage that may cause many diseases including cancer. Primary sources of naturally occurring antioxidants are known as whole grains, fruits, and vegetables. Several studies suggest that regular consumption of nuts, mostly walnuts, may have beneficial effects against oxidative stress mediated diseases such as cardiovascular disease and cancer. The role of antioxidants has attracted much interest with respect to their protective effect against free radical damage that may cause many diseases including cancer. Juglans regia L. (walnut) contains antioxidant compounds, which are thought to contribute to their biological properties. Polyphenols, flavonoids and flavonols concentrations and antioxidant activity of Leaves, Stems and Nuts extract of Juglans regia L. as evaluated using DPPH, ABTS, Nitric acid, hydroxyl and superoxide radical scavenging activity, lipid peroxidation and total oxidation activity were determined. The antioxidant activities of Leaves, Stems and Nuts extract of Juglans regia L. were concentration dependent in different experimental models and it was observed that free radicals were scavenged by the test compounds in all the models.

The negligible role of ellagic acid in preventing fat oxidation of Tunisian walnuts (Juglans regia L.)

2017 ◽  
Vol 11 (3) ◽  
pp. 1406-1411 ◽  
Author(s):  
Ikram Bou Abdallah ◽  
Vincenzo Macciola ◽  
Sadok Boukhchina ◽  
Rafael de La Torre Fornell ◽  
Antonella De Leonardis
Keyword(s):  
Ellagic Acid ◽  
Juglans Regia ◽  
Fat Oxidation

scholarly journals Retrospectives Whatever Happened to the Cambridge Capital Theory Controversies?

2003 ◽  
Vol 17 (1) ◽  
pp. 199-214 ◽  
Author(s):  
Avi J Cohen ◽  
G. C Harcourt
Keyword(s):  
Business Cycle ◽  
Endogenous Growth ◽  
Path Dependence ◽  
Real Business Cycle ◽  
Capital Theory ◽  
Economic Process ◽  
The 1950S ◽  
Simple Models

We argue that the Cambridge capital theory controversies of the 1950s to 1970s were the latest in a series of still-unresolved controversies over three deep issues: explaining and justifying the return to capital; Joan Robinson's complaint that, due to path dependence, equilibrium is not an outcome of an economic process and therefore an inadequate tool for analyzing accumulation and growth; and the role of ideology and vision in fuelling controversy when results of simple models are not robust. We predict these important and relevant issues, latent in endogenous growth and real business cycle theories, will erupt in future controversy.

The role of exogenous plant regulators in the dormancy of onion bulbs

1974 ◽  
Vol 82 (1) ◽  
pp. 113-116 ◽  
Author(s):  
M. Abdel-Rahman ◽  
F. M. R. Isenberg
Keyword(s):  
Abscisic Acid ◽  
Growth Regulators ◽  
Maleic Hydrazide ◽  
Rest Period ◽  
Storage Period ◽  
Inhibitory Effect ◽  
Onion Bulbs ◽  
Subsequent Application

SUMMARYExperiments were conducted to study the effect of plant injection with growth regulators on the dormancy of onion bulbs cv. Elba Globe. Application of abscisic acid induced early senescence of the leaves and prolonged the rest period of the bulbs. This effect was partially overcome by subsequent applications of gibberellin, auxin or cytokinin and totally overcome with the application of a mixture of the three hormones. Maleic hydrazide application prolonged the rest period by inhibiting both sprouting and rooting of the bulbs throughout the storage period. This inhibitory effect was not overcome by the subsequent application of auxin, gibberellin, kinetin, or their combinations. Ethephon application increased rooting of bulbs and partially overcame the effect of abscisic acid on dormancy.

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