Character association for yield traits in Oroxylum indicum (L.) vent.: A vulnerable medicinal tree

Oroxylum indicum (L.) Vent. is an important threatened medicinal tree. An experiment was undertaken to study the correlation and path analysis in Oroxylum indicum (L.) Vent. accessions during 2016–17. Correlation study revealed that number of pods per plant, leaf area, leaf width and petiole length had significant positive correlation with pod yield per plant. According to path analysis, number of pods per plant, leaf length, plant height, pod width, number of seeds per pod and number of pods per plant recorded positive and high direct effect on pod yield per plant. Thus, based on correlation and path analysis, traits viz. number of pods per plant and pod length can be considered as selection indices for high pod yield in this species.