Results 201 to 210 of about 8,491 (231)
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The extrafloral nectaries of cowpea (Vigna unguiculata (L.) Walp.) II. Nectar composition, origin of nectar solutes, and nectary functioning

Planta, 1985
Nectar was collected from the extrafloral nectaries of leaf stipels and inflorescence stalks, and phloem sap from cryopunctured fruits of cowpea plants. Daily sugar losses as nectar were equivalent to only 0.1-2% of the plant's current net photosynthate, and were maximal in the fourth week after anthesis.
J S, Pate   +3 more
openaire   +2 more sources

NECTAR SUGAR COMPOSITION IN SOME SPECIES OF AGAVE (AGAVACEAE)

1983
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Freeman, C Edward   +2 more
openaire   +1 more source

Some Floral Nectar-Sugar Compositions from Durango and Sinaloa, Mexico

Biotropica, 1985
Determination des glucides du nectar de 34 especes et 18 familles de plantes tropicales et subtropicales.
C. Edward Freeman   +2 more
openaire   +1 more source

Effect of rootstocks on floral nectar composition in apple cultivars

Plant Systematics and Evolution, 2003
Insect attraction of flowers in apple cultivars is an essential question from the viewpoint of fruit yield, since apple flowers are autosterile and entomogamous. Therefore, it is important to study the two most significant factors of primary attraction, pollen and nectar production.
E. Nagy Tóth   +3 more
openaire   +1 more source

Flower structure and nectar chemical composition in three Argentine Apocynaceae

Flora, 1997
Summary Flower structure and nectar composition were investigated in Mandevilla laxa (R uiz et P av .) W oodson , M. pentlandiana (A. DC.) WOODSON, and Macrosiphonia petraea (S t . H il .) K. S chum . A voluminous floral nectary surrounds the ovary. It is continuous and adnate to the floral receptacle, lobed in its upper portion, and supplied by
openaire   +1 more source

STUDIES OF NECTAR SECRETION IN EXCISED FLOWERS: I.THE INFLUENCE OF CULTURAL CONDITIONS ON QUANTITY AND COMPOSITION OF NECTAR

Canadian Journal of Botany, 1956
Nectar secretion was studied in excised flowers of snapdragon (Antirrhinum majus L.) grown in culture solution during the secretory period. The supply of sugar to the flower was regulated by varying the sugar concentration of the culture medium or the volume of medium entering the flower.
openaire   +1 more source

The role of nectar aminoacidic composition in pollinator preference

2014
Amino acids are the main nectar components after sugars. In addition to protein amino acids (among which Proline is the main one) non-protein amino acids (eg GABA, β-alanine) are also present and sometimes very abundant, but their contribution to floral attraction to pollinators is not completely clear. Gentiana lutea subsp.
Bogo G.   +5 more
openaire   +3 more sources

Amino acid composition of cotton nectar

Journal of Agricultural and Food Chemistry, 1974
Barbara W. Hanny, Carroll D. Elmore
openaire   +1 more source

NECTAR COMPOSITION IN SOME PEAR CULTIVARS

Acta Horticulturae, 2002
A. Farkas   +2 more
openaire   +1 more source

Nectar-sugar Composition in an Individual of Ruellia peninsularis (Acanthaceae)

1986
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

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