Carotenoids in ripe green and in autumn senescing leaves of apple tree: II - Seasonal changes of free carotenoids and xanthophyll esters and relationship between their content and senescing stage

Asparagine and arginine contents in spur buds, leaf buds and terminal buds of shoot were compared in Fuji and Jonagold apple trees during dormant and growing season. Amino acid contents in dormant spur buds were significantly higher in Jonagold than in Fuji, whereas the amino acid contents in shoot bark were not different in two cultivars. Asparagine and arginine contents were considerably higher in leaf and terminal buds of shoot. This phenomenon was quite obvious in Fuji than Jonagold but there was no significant difference in asparagine and arginine contents in spur buds. Flower buds differentiated on summer pruned shoots had higher contents of asparagine and arginine as compared with weak spur buds in Fuji but this was not quite obvious in Jonagold. It suggested that the irregular spur size and poor development of spur buds in Fuji cultivar might be caused by the poor translocation of amino acids as well as nitrogen compounds from shoots and other vegetative organs.

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Seasonal Changes In C6-C3 Acids And The Activity Of Different Forms Of Peroxidases During The Vegetative Growth Of Shoots Of The Apple-Tree (Malus Domestica Borkh.)

Biochemie und Physiologie der Pflanzen ◽

10.1016/s0015-3796(85)80055-x ◽

1985 ◽

Vol 180 (6) ◽

pp. 449-457 ◽

Cited By ~ 1

Author(s):

H. Miidla ◽

E. Padu ◽

H. Vahemets ◽

A. JäRva

Keyword(s):

Malus Domestica ◽

Vegetative Growth ◽

Seasonal Changes ◽

Apple Tree ◽

Malus Domestica Borkh

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SEASONAL CHANGES OF N,P,K,CA AND MG CONTENT IN APPLE TREE LEAVES DURING VEGETATION PERIOD

Acta Horticulturae ◽

10.17660/actahortic.1990.274.45 ◽

1990 ◽

pp. 365-374 ◽

Cited By ~ 5

Author(s):

J. Nurzynski ◽

A. Komosa ◽

M. Wesolowska-Janczarek ◽

M. Kepka ◽

G. Kozera

Keyword(s):

Seasonal Changes ◽

Apple Tree ◽

Vegetation Period ◽

Tree Leaves ◽

Mg Content

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Spreading the Word: Seasonal Changes Mean New Opportunities for Media Coverage

ASHA Leader ◽

10.1044/leader.stw.18072013.np ◽

2013 ◽

Vol 18 (7) ◽

Keyword(s):

Media Coverage ◽

Seasonal Changes ◽

Swimming Pools

Summer kicking into high gear conjures images of swimming pools and barbeques. But before you book your beach house for the weekend, think about what the changing seasons can mean for you professionally.

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