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Table 3 Mean correlation coefficients of ten physiological traits and grain yield of RILs along with parents estimated under drought stress pooled over 2014 and 2015

From: Genetic mapping of physiological traits associated with terminal stage drought tolerance in rice

  LL LW BIOM RCC CHLa CHLb CHLa+b CHLa/b CMS PRO YLD
LL 1 .404** .173* .111 −.023 −.120 −.055 .107 −.236** −.047 .173*
LW .404** 1 .385** .044 −.085 −.191** −.129 .192** −.162* −.193** .285**
BIOM .173* .385** 1 .178* .013 −.127 −.030 .187** −.133 −.106 .610**
RCC .111 .044 .178* 1 .237** .152* .239** −.077 −.068 .042 .246**
CHLa −.023 −.085 .013 .237** 1 .510** .854** −.104 .279** .277** .168*
CHLb −.120 −.191** −.127 .152* .510** 1 .720** −.624** .247** .178* −.129
CHLa+b −.055 −.129 −.030 .239** .854** .720** 1 −.276** .302** .279** .121*
CHLa/b .107 .192** .187** −.077 −.104 −.624** −.276** 1 −.150* −.003 .169*
CMS −.236** −.162* −.133 −.068 .279** .247** .302** −.150* 1 .300** −.134
PRO −.047 −.193** −.106 .042 .277** .178* .279** −.003 .300** 1 .205**
YLD .173* .285** .610** .246** .168** .121* −.031 .169** −.134 .205** 1
  1. **Correlation is significant at 0.01 level (2-tailed)
  2. * Correlation is significant at 0.05 level (2-tailed)
  3. Note: LL leaf length (cm), LW leaf width (cm), BIOM biomass (g), RCC relative chlorophyll content, CHLa chlorophyll a (mg/g fresh weight), CHLb chlorophyll b (mg/g fresh weight), CHLa+b chlorophyll a+b (mg/g fresh weight), CHLa/b chlorophyll a/b ratio, CMS cell membrane stability (%), PRO proline content (μm/g), YLD grain yield (g)