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Agnihotri, R. K., Palni, L. M. S. and Pandey, D. K. (2006): Screening of landraces of rice under cultivation in Kumaun Himalaya for salinity stress during germination and early seedling growth. - Indian J. Plant

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seedling traits under drought stress conditions in bread wheat. Cereal Res. Comm. 30:293–300. Behl R.K. Inheritance of seedling traits under drought stress conditions in bread wheat

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The effects of two light intensities on the concentration of several flavonoids were investigated in the cotyledons of common buckwheat seedlings. The study was performed on four days old seedlings of cvs. Hruszowska, Panda, Kora and Red Corolla. One group of seedlings was grown under exposure to 180 ± 20 μmol · m−2 · s−1 photosynthetically active radiation, whereas the other group was exposed to 360 ± 20 μmol · m−2 · s−1. The experiment lasted 5 days. The results revealed that light intensity induces changes in the levels of flavonols and flavones. Increased light intensity contributed to a decrease in the concentrations of all flavone C-glucosides: orientin (luteolin-8-C-glucoside) and iso-orientin (luteolin-6-C-glucoside), and apigenin: vitexin (apigenin-8-C-glucoside) and iso-vitexin (apigenin-6-C-glucoside). Simultaneously, a substantial increase in the content of flavonols, i.e. quercetin O-glycosides, was found. To the best of our knowledge, this is the first evidence to demonstrate the contrary responses of plant flavonols and flavones to light intensity. The content of anthocyanin also increased under exposure to higher light intensity. Our results indicate that quercetin O-glycosides can play a similar role to anthocyanins in the cotyledons of common buckwheat seedlings. Results of correlation analysis indicate that the increase in flavonol and anthocyanin concentrations in response to higher light intensity is maintained through reduced accumulation of flavones and proanthocyanidins.

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Acta Biologica Hungarica
Authors: Ivanka Fedina, Maya Velitchkova, Katya Georgieva, Dimitrina Nedeva, and H. Çakırlar

barley seedlings to UV-B radiation as affected by proline and NaCl. Biol. Plant. 47 , 549–554. Grigorova I. Response of barley seedlings to UV-B radiation as affected by proline

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Basal, H., Smith, C.W., Thaxton, P.S., Hemphill, J.K. 2005. Seedling drought tolerance in upland cotton. Crop Sci. 45 :766–771. Hemphill J.K. Seedling drought tolerance in upland

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Acta Agronomica Hungarica
Authors: R. Maiti, S. Kousik, H. González Rodríguez, D. Rajkumar, and P. Vidyasagar

. 2007 7 304 313 Izzo, R., Navari-Izzo, F., Quartacci, M. F. (1991): Growth and mineral absorption in maize seedlings as

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Alvarez, M.I., Sueldo, R.J., Barassi, C.A. 1996. Effect of Azospirillum on coleoptile growth in wheat seedlings under water stress. Cereal Res. Comm. 24 :101

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.S. 2008 . Tsianidyn yak endohennyy khelator ioniv metaliv u korenyakh prorostkiv kukurudzy [Cyanidin as endogenous chelator of metal ions in maize seedling roots.] Ukr . Biokhim. Zh. (Ukr. Biochem. J.) 80 : 102 – 106 . [in Ukrainian

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seedling growth, were examined in this article. Investigations were performed on plants (seedlings) with different storage materials in their seeds, i.e. monocotyledonous ( Triticum aestivum L.), dicotyledonous crucifers ( Sinapis alba L. and Brassica

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leaves extracts on the mustard seedlings growth [ 15 ]. Another study shows the importance of calorimetry as a tool to indicate that cnicin has an allelopathic impact on the germination of soybean and radish seeds [ 16 ]. This article shows the

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