Growth and Yield of different Blackgram varieties under Bijasal (Pterocarpus marsupium Roxb.) based Agrisilviculture System

A field experiment on growth of tree species and yield performances of different blackgram varieties under Bijasal based agrisilviculture system was carried out. The experimental plots were laid out in randomized block design with nine treatments and four replications. The findings indicate that the maximum height increment of Bijasal (Pterocarpus marsupium) was found in T1 :Bijasal+ Black gram (Var. Birsa Urd-1) 52.42 cm followed by T4 :Bijasal+ Black gram (Var. Uttara) 49.97 cm, T2 :Bijasal+ Black gram (Var. Birsa Urd-2) 46.12 cm which was at par with each other whereas the maximum collar diameter increment was found in T1 :Bijasal+ Black gram (Var. Birsa Urd-1) 0.69 cm followed by T4 :Bijasal+ Black gram (Var. Uttara) 0.64 cm, which was at par with each other. The maximum height of black gram was found in T9 : Sole Black gram (Var. Uttara) 63.52 cm and minimum in T3 : 9 Bijasal+ Black gram (Var. WBU-109) 52.75 cm. The grain yield of black gram was found significantly superior in T6 : Sole Black gram (Var. BU-1) 13.76 q ha-1 followed by T9 - Sole Black gram (Var. Uttara) 12.87 q ha-1, T7 - Sole Black gram (Var. Birsa Urd -2) 12.10 q ha-1 which was at par with each other and minimum in T3 : Bijasal + Black gram (Var. WBU-109) 9.9 q ha-1.