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871 16 |
Ultima descărcare din IBN: 2023-10-28 05:46 |
Căutarea după subiecte similare conform CZU |
633.854.78:581.142 (1) |
Plante aromatice. Condimente. Plante aleaginoase. Plante colorante. Plante tanante. Plante medicinale (433) |
Fiziologia plantelor (526) |
SM ISO690:2012 DUCA, Maria, PORT, Angela, CERNOLEV, Elena, MUTU (CALMÎŞ), Ana, CHILARI, Rodica. Afinitatea şi unele particularităţi fiziologice ale diferitor rase de lupoaie (Orobanche cumana Wallr.). In: Ştiinţa Agricolă, 2016, nr. 2, pp. 41-46. ISSN 1857-0003. |
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Ştiinţa Agricolă | ||||||
Numărul 2 / 2016 / ISSN 1857-0003 /ISSNe 2587-3202 | ||||||
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CZU: 633.854.78:581.142 | ||||||
Pag. 41-46 | ||||||
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The interaction between sunflower (host) and broomrape (parasite) is directly influenced by physiological and biochemical characteristics of the pathogen, characterized by affinity, virulence and aggressiveness. The parasitization process of broomrape begins with the germination of seeds and is induced by germination stimulants located in the rhizosphere of sunflower plants. In this study the germination capacity of broomrape seeds (45 populations collected from sunflower and tobacco agrocenosis) has been evaluated on exudates obtained from the root system of various sunflower genotypes: the sensitive genotype LMD1 and differential lines resistant to races E, F, G and H. Broomrape seeds from tobacco agrocenosis germinated on all studied exudates, showing a high level of affinity to host plant. Therefore, the germination inductors specific to sunflower induced the germination process of the parasite characteristic for the anthophytoses on tobacco plants. The average germination rate on the root exudate of the sensible genotype LMD1was 15,2%and on the exudate of the race H differential (HLG 5661) - 17,7%. Indicators significantly lower were noted in the other variants under study. |
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Cuvinte-cheie Orobanche, Exudat radicular, Interacţiune gazdă-patogen, Stimulatori de germinare, Germinarea seminţelor, Helianthus annuus, Afinitate |
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