AUTHOR=Rangappa Krishnappa , Singh Nongmaithem Raju , Janyanaik Joga Rajappa , Mohapatra Kamal Prasad , Chandra Puran , Choudhury Burhan U. , Moiranghtem Prabha , Debnath Supriya , Chanu L. Joymati , Devi Ningthoujam Peetambari , Singh Nongmaithem Uttam , Hazarika Samarendra , Kumar Yengkhom Bijen , Mishra Vinay Kumar TITLE=Tree crop interactions, productivity and physiological efficiency of understorey crops in Alnus nepalensis and Gmelina arborea based agroforestry systems in Eastern Himalayas JOURNAL=Frontiers in Sustainable Food Systems VOLUME=9 YEAR=2025 URL=https://www.frontiersin.org/journals/sustainable-food-systems/articles/10.3389/fsufs.2025.1494371 DOI=10.3389/fsufs.2025.1494371 ISSN=2571-581X