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Variation between tetraploid red clover plants in corolla tube length and height of nectar

Published online by Cambridge University Press:  27 March 2009

D. A. Bond
D. A. Bond
Affiliation:
Plant Breeding Institute, Cambridge
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Summary

Crosses between eelworm-resistant tetraploid red clover plants varied significantly in corolla tube length and in the distance between the top of the nectar and mouth of the corolla tube. Variability between plants in height of nectar above the base of the corolla was positively correlated with corolla tube length but a significant residual variance in nectar height was independent of corolla tube length.

Tetraploids had higher nectar but longer corolla tubes and greater distances for bees to reach than those in related diploids which were previously reported.

The implications of the findings are discussed in relation to the improvement by breeding of the attractiveness of tetraploid red clover to honey-bees.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 71 , Issue 1 , August 1968 , pp. 113 - 116
Copyright
Copyright © Cambridge University Press 1968

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References

Bond, D. A. & Fyfe, J. L. (1968). Corolla tube length and nectar height of F1 red clover plants (Trifolium pratense) and their seed yield following honey-bee pollination. J. agric. Sci., Camb. 70, 5–10.Google Scholar
Dennis, B. A. & Haas, H. (1967). Pollination and seed setting in diploid and tetraploid red clover (Trifolium pratense L.) under Danish conditions. II. Studies of floret morphology in relation to the working speed of honey-bees and bumble-bees (Hymenoptera: Apoidae). K. vet-og Landboheisk. Åarsskr. pp. 118–33.Google Scholar
Julén, G. (1954). Aspects on the breeding of tetraploid red clover with special reference to the seed setting problem. Pap. No. 224/32 read at European Grassland Conference. Paris, June, 1954, p. 9.Google Scholar
Kress, H. & Fuchs, A. (1959). Über den Züchtungswert von Rotklesformen mit kurzer Blütenröhre. Z. PflZücht. 41, 167–94.Google Scholar
Laczynska-Hulewicz, T. (1961). Some factors influencing seed setting in tetraploid red clover. Proceedings of Eucarpia Foddercrop Section, Tetraploid clover group, Svalof 1961, pp. 49–51.Google Scholar
Mansat, P., Picard, J. & Barthou, F. (1966). Value of selection at diploid level before tetraploidization. Proc. 10th Int. Grassld Congr. Section 3, Paper No. 16, 671–6.Google Scholar
Stapel, C. (1933). Undersøgelser over humblebier (Bombus Latr.) deres udbredelse, traekplanter og betydning for bestøvningen af rødkløver (Trifolium pratense L.). Tidsskr. PlAvl 39, 193–294.Google Scholar
Starling, T. M., Wilsie, C. P. & Gilbert, N. W. (1950). Corolla tube length studies in red clover. Agron. J. 42, 1–8.Google Scholar
Valle, O., Huokuna, E. & Punmalainen, T. (1964). The possibilities of seed production of tetraploid red clover in central Finland. Ann. Agric. Fenniae, 80–94.Google Scholar