Allometric Equations for Estimating Silk Oak (Grevillea robusta) Biomass in Agricultural Landscapes of Maragua Subcounty, Kenya

Table 8

A validation of the equation with similar equations using the F values of the paired t-test.

Author	F calculated	F critical	Comments	Discussion
Kuya [5]	1.5375557	1.8283	There is no significant difference	The Kuya equation was developed in similar Agroforestry conditions but in a different AEZs of Kenya.
Henry [1]	0.817302	1.8283	There is no significant difference	The equation was developed for Agroforestry trees of Western Kenya in a different AEZ.
Benedicto [19]	2.070408	1.8408	There is a significant difference.	The equation was developed in Mexico. A totally different biome and may not be applicable in the study area.
Rurangwa [18]	1.118687	1.8408	There is no significant difference	Rurangwa developed this equation in Agroforestry trees of Ruanda which is within East Africa.