Fig. 3.

Effects of growth temperature (16/10, 22/16 and 28/22 °C day/night) on the number of panicles per plant (A) and the percentage of flowering tillers (B) in four ecotypes of P. bulbosa growing at SD (9 h), age 5 months, differing in rainfall at the site of origin and flowering capacity: arid habitat and ‘flowering’ (A–F); semi-arid, ‘flowering’ (SA–F); semi-arid, ‘non-flowering’ (SA–NF); and mesic, ‘non-flowering’ (M–NF). SA–F and SA–NF ecotypes co-occur in the same habitat. Data of pre-chilled and non-pre-chilled (control) treatments were pooled, since differences between the two pre-treatments were not significant. Data are means ± s.e. n = 30 plants.