Morphological and physiological responses of Spatholobus suberectus Dunn to nitrogen and water availability

Morphological and physiological responses of Spatholobus suberectus Dunn to nitrogen and water availability

Blog Article

A pot study was conducted to elucidate morphological and physiological responses of Spatholobus suberectus Dunn accessions to four nitrogen application rates (0, 10, 20, and 30 mmol L-1) and two watering regimes (daily irrigation and irrigation every 10 d for a month).The results showed that luminizer water deficit led to marked decreases in leaf water relations and photosynthetic parameters regardless of the N treatments.Under drought conditions, the reductions in net photosynthesis occurred mainly due to stomatal factors.Although the leaf N content and stem mass ratio were positively correlated with N application, other morphological and physiological characteristics were negatively correlated or nonsignificantly correlated with N application under limited water supply.

As the root nodules of S.suberectus can provide sufficient N supply, and high N applications made S.suberectus plants more vulnerable to drought stress, we suggest that no N supplement is required Face Gel for S.suberectus seedlings.