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Science 24 October 1980:
Vol. 210. no. 4468, pp. 437 - 438
DOI: 10.1126/science.210.4468.437
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Articles

Pollen Tube Growth Rates in Zea mays: Implications for Genetic Improvement of Crops

ERCOLE OTTAVIANO 1, MIRELLA SARI-GORLA 1, and DAVID L. MULCAHY 2

1 Institute of Genetics, University of Milan, 20/30 Milan, Italy
2 Department of Botany, University of Massachusetts, Amherst 01003

Speed of pollen tube growth is positively correlated with the quality of the resultant sporophytic generation. Therefore, gametophytic competition may be an important adaptive mechanism. Furthermore, pollen tube growth rates may be used to predict the quality of F1 crosses in crop species.

Submitted on February 25, 1980
Revised on July 16, 1980


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