Physiological indices of seven forage species in different tropical environments
DOI:
https://doi.org/10.29312/remexca.v14i4.3475Keywords:
adaptability, altitude, forages, seasonsAbstract
Forages must constantly carry out processes of adaptation to different changes in environmental factors, which leads to their physiological variables being affected. The objective was to evaluate the physiological behavior of seven tropical forage species under different environmental conditions in 2019 in Palmira, Colombia. A randomized complete block design was implemented in three localities with different altitudes, with four repetitions per species for a total of 28 experimental units per locality. An Lcpro+ portable photosynthetic measurement analyzer was used to collect data on photosynthesis rate (TA), stomatal conductance (Gs), transpiration rate (E) and Internal CO2 (Ci). The collected data were analyzed by a comparison of means with Duncan’s test (p≤ 0.05). The physiological indicators of the species Star, Kikuyu and the legume Centrosema molle in the three altitudes and the two seasons would demonstrate the mechanisms of adaptation that they develop in adverse places in which they are established.
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