1. Rood SB, Buzzell RI, Mander LN, et al. Gibberellins: A phytohormonal basis for heterosis in maize. Science. 1988; 241: 1216–1218.
2. Zeevaart JAD. Effects of photoperiod on growth rate and endogenous gibberellins in the long-day rosette plant spinach. Plant Physiol. 1971; 47: 821–827.
3. Metzger JD, Zeevaart JAD. Photoperiodic control of gibberellin metabolism in spinach. Plant Physiol. 1982; 69: 287–291.
4. Phinney BO. Gibberellin A1, dwarfism and the control of shoot elongation in higher plants. In: Crozier A, Hillman, JR, eds. The biosynthesis and metabolism of plant hormones. Cambridge: Cambridge University Press, 1984: p. 1741.
5. MacMillan J. Metabolism of gibberellins A20 and A9 in plants: Pathways and enzymology. In: Pharis RP, Rood SB, eds. Plant growth substances 1988. Berlin: Springer-Verlag, 1990: In press.