PERFORMANCE EVALUATION OF PONGAMIA (Pongamia pinnata (L.) Pierre) GERMPLASMS
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Date
2022-12-08
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University of Agricultural Sciences, Bangalore
Abstract
The present study entitled “Performance evaluation of Pongamia (Pongamia pinnata (L.) Pierre) germplasms” was carried out at ‘M’ block, in AICRP on Agroforestry unit, ZARS, GKVK, Bengaluru during January 2022 to July 2022. The experimental plot consisted
of eight germplasms namely RAK-2015-01, RAK-2015-02, RAK-2015-03, RAK-2015-04, RAK-2015-07, RAK-2015-08, RAK-2015-09 and RAK-2015-10. The experiment was laid out in RCBD design with three replications. The results showed tht the tree growth
parameters of five years old RAK-2015-01 germplasm has recorded the higher plant height (4.15 m), diameter at breast height (8.37 cm) and crown spread in east – west and north –south direction (3.93 m & 4.15 m, respectively). In RAK-2015-10, significantly higher accumulated biomass (2510 kg ha-1) and the carbon sequestration potential (4142 kg ha-1) in
trees were observed when compared with other germplasms. The maximum accumulated litter fall during the study period was observed in RAK-2015-10 (890.18 kg) with mean accumulation of 148.36 kg month-1. In all the months of the study period the maximum lux readings and lower solar energy reduction was observed in RAK-2015-10. Intercrop cowpea grown under Pongamia based agroforestry system influenced by different Pongamia germplasms has recorded maximum grain yield in RAK-2015-01 (755 kg ha-1).