Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Zs Orosz"'
Publikováno v:
International Journal of Horticultural Science, Vol 10, Iss 2 (2004)
Floral biological characteristics that may influence cultivar susceptibility to fire blight were studied in 10 pear cultivars in two Hungarian orchards from 1999 to 2003. The receptaculo-ovarial, automorphic nectary is usually bigger in tolerant cult
Externí odkaz:
https://doaj.org/article/06652a96ed7644d99a1902f9cdf80775
Publikováno v:
International Journal of Horticultural Science, Vol 10, Iss 2 (2004)
Nectar is a multi-component aqueous solution that promotes bacterial multiplication. The concentration of nectar in plant flowers is not stable since it is under the influence of environmental conditions, especially free moisture and relative humidit
Externí odkaz:
https://doaj.org/article/204055e0e6ef4f4992d23cfdb613981a
Publikováno v:
International Journal of Horticultural Science, Vol 10, Iss 2 (2004)
Floral activity was studied in two apple cultivars: an Erwinia-tolerant (Treedorn') and a sensitive one (`Sampion'). Since more types of protogyny occur in apples, the period of stigma activity is different. Papillae of the exposed stigma in flowers
Externí odkaz:
https://doaj.org/article/9c9ede60bb3a4ec5bddecc8f06cb74d6
Autor:
E. Nagy Tóth, Zs. Orosz-Kovács
Publikováno v:
International Journal of Horticultural Science, Vol 7, Iss 3-4 (2001)
Approaches based on the daily rhythm of apple flowers provide a new stage in nectar research, where the synchronous functioning of sexual organs is studied. In the flower biological studies the insect attraction of flowers was also studied. The two m
Externí odkaz:
https://doaj.org/article/463dfa51eaf1413ababff4b7b2c9d09f
Publikováno v:
International Journal of Horticultural Science, Vol 6, Iss 3 (2000)
The percentage of dark staining pollen grains was higher in spring of 1996 than in the previous year. Data in 1998 resemble those of 1995, concerning the large amount of medium staining pollen grains in the majority of clones. Some clones produced ex
Externí odkaz:
https://doaj.org/article/a43f45c3447d4b9695987f1da6a1a267
Publikováno v:
International Journal of Horticultural Science, Vol 6, Iss 3 (2000)
The composition of floral nectar in sour cherry cultivars studied in 1997 at Újfehértó was in agreement with our previous data, the three most frequent sugar components being glucose, fructose and sucrose. Nectar secreted at night is generally mor
Externí odkaz:
https://doaj.org/article/d7451455abb74db588ea18cc34426281
Autor:
Á. Farkas, Zs. Orosz-Kovács
Publikováno v:
International Journal of Horticultural Science, Vol 6, Iss 3 (2000)
Hourly nectar secretion was studied in five pear cultivars between 1997-1999. Some cultivars (e.g. ‘Csákvári téli') secreted nectar continuously during the whole day, offering both nectar and pollen for pollinating insects. Discontinuous secreti
Externí odkaz:
https://doaj.org/article/b7c9734dad4c40e7a115a5c2444c9620
Publikováno v:
Acta Botanica Hungarica. 49:359-375
The receptaculo-ovarial nectary of quince is located on the adaxial surface of the hypanthium. The glandular tissue is protruding out of the basal part of the receptacular tissue, but the apical part of the nectary is epimorphic. The glands can have
Publikováno v:
Acta Botanica Hungarica. 48:279-290
The sugar composition of the floral nectar was studied in 22 mainly Hungarian local quince cultivars in 2004. The material for investigation was taken from the quince genebank of the Research and Extension Centre for Fruitgrowing, Ujfeherto, Hungary.
Publikováno v:
Acta Botanica Hungarica. 48:271-277
The knowledge of nectar composition in entomogamous fruits, including sour cherry cultivars, is of high importance, since pollinator insects have their own taste-preference, which can influence pollination, and hence fruit yield. The floral secretory