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Table 4 Factors affecting adoption of improved sorghum varieties: results of multivariate probit regression

From: The role of varietal attributes on adoption of improved seed varieties: the case of sorghum in Kenya

  Gadam Serena Kimbeere
  Coefficient P value Marginal effect Coefficient P value Marginal effect Coefficient P value Marginal effect
Yield 0.559 0.021 0.462 0.239 0.021 0.335 -1.109 0.028 -0.261
Drought resistance 0.580 0.247 0.146 0.980 0.698 0.201 0.967 0.040 0.310
Striga 0.093 0.247 0.022 0.573 0.459 0.230 -0.283 0.534 -0.106
Maturity -0.705 0.103 -0.203 0.744 0.413 0.242 0.499 0.199 0.192
Pest resistance 1.067 0.084 0.674 1.757 0.001 0.564 0.903 0.072 0.330
Price 2.371 0.000 0.118 1.065 0.154 0.354 0.116 0.801 0.027
Ease of cooking 1.182 0.019 0.329 0.755 0.017 0.332 -0.810 0.097 -0.293
Taste 0.372 0.433 0.118 -0.330 0.645 -0.145 0.801 0.059 0.283
Brewing quality 0.259 0.048 0.065 1.201 0.124 0.354 0.204 0.520 0.052
Distance to the market -0.159 0.001 -0.052 -0.012 0.832 -0.005 0.051 0.448 0.011
Household size 0.121 0.096 0.039 0.132 0.223 0.050 -0.136 0.001 -0.420
Farm size 0.620 0.019 0.189 0.183 0.616 0.041 -0.047 0.849 -0.030
Value of livestock assets 0.177 0.138 0.055 -0.275 0.126 -0.105 0.070 0.551 0.025
Extension visits 0.335 0.003 0.113 0.085 0.053 0.223 -0.084 0.038 -0.260
Off-farm income 0.664 0.006 0.223 0.319 0.028 0.127 0.285 0.146 0.106
Group membership -0.440 0.194 -0.151 -0.049 0.906 -0.018 -0.389 0.021 -0.136
Assets 0.047 0.076 0.330 0.284 0.151 0.598 0.008 0.954 0.008
Age -1.748 0.020 -0.484 -1.056 0.285 -0.331 0.618 0.380 0.200
Gender 0.357 0.459 0.099 -0.766 0.318 -0.351 -0.137 0.749 -0.043
Education 0.034 0.024 0.011 -0.173 0.165 -0.063 -0.038 0.491 -0.008
Farming experience 0.018 0.751 0.005 0.014 0.415 0.004 -0.008 0.537 -0.003
Constant 14.529 0.001   -0.616 0.901   -7.246 0.053  
  1. Likelihood ratio test of rho21 = rho31 = rho32 = 0 chi2 (3) = 3.28304 Prob > chi2 = 0.0000.
  2. Wald chi2(63) = 113.41 Prob > chi2 = 0.0001 Log likelihood = -128.64298.