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Pedersen, M.W. | 1957Nectar secretion per flower in alfalfa in 1956 was stimulated by earlier thinning (in 1953, 1954, and 1955) of established stands. Stimulation was greatest for the first crop after thinning and then diminished. Opening up the stand to permit mor[...]article/chapitre/communication
L. Haragsimova, - Auteur | 1962article/chapitre/communication
article/chapitre/communication
C. Butler, - Auteur ; D. Finney, - Auteur ; P. Schiele, - Auteur | 1943ouvrage
article/chapitre/communication
C. Gries, - Auteur | 1930article/chapitre/communication
Kraai, A. | 1964Bees are used to pollinate plants in isolation cages. Usually the bees have previously flown about freely in the open air and may have gathered pollen from the same plant species. Now the question arises whether the bees can contaminate with thi[...]article/chapitre/communication
Carta, S., - Auteur ; Frontali, N., - Auteur ; Vivaldi, G., - Auteur | 1961article/chapitre/communication
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E. Oertel, - Auteur | 1951article/chapitre/communication
ouvrage
article/chapitre/communication
1964The quantity of nectar sugar secreted by excised Antirrhinum flowers was reduced when indolyl-3-acetic acid (IAA) was added to the culture solution at 5 X 104M concentration. The volume of fluid was reduced by IAA in culture solutions containing[...]article/chapitre/communication
H. Jawlowski, - Auteur | 1957article/chapitre/communication
C. Butler, - Auteur | 1950