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Table 2 Photosynthetic parameters of L. chinensis in response to light under ABA and BR treatments

From: Effects of abscisic acid and brassinolide on photosynthetic characteristics of Leymus chinensis from Songnen Plain grassland in Northeast China

Treatment Q E A max [μmol m–2 s-1] LCP LSE
Control 0.02 ± 0.00d1 10.33 ± 0.93c 78.66 ±1.85a 502.80 ±10.77a
ABA 0.04 ± 0.00c 9.96 ± 0.85c 52.96 ± 1.94b 283.10 ± 9.56b
High BR 0.07 ± 0.00b 13.26 ± 0.67bc 52.28 ± 1.25b 255.20 ± 8.74b
ABA + low BR 0.06 ± 0.00b 13.88 ± 0.53bc 54.21 ± 1.68b 295.80 ± 10.65b
ABA + medium BR 0.07 ± 0.00b 13.64 ± 0.78bc 45.08 ± 1.34c 548.40 ± 11.28a
ABA + high BR 0.11 ± 0.00a 16.86 ± 0.91a 25.07 ± 1.25d 175.70 ± 10.34c
High ABA + high BR 0.11 ± 0.00a 14.14 ± 0.94b 24.58 ± 0.99d 157.00 ± 10.26c
  1. (ABA: abscisic acid; BR: brassinolide; Q E : high energy state quenching; Amax:the maximum net photosynthesis; LCP: light compensation point; LSE: light saturation estimate. 1 : Different letters with a column indicate significate difference at P ≤ 0.05 ).