The absolute value of the t stat (2.6568) is >than the "two tailed' t critical value (2.131), and indicates that the results for treatment #1 are indeed different to those from #2. The t-stat sign(-) indicates that the #1 mean is smaller than the #2 mean and the that difference is significant,since the t stat value> the 'one tailed t critical value (2.6568 compared to 1.75305). The p value are a measure of the reliability of these parameters. P values of 0.05 indicate that there is a 95% confidence level that the t-stat value does not occur by chance. Here the p-values indicate much higher levels of confidence can be placed in the t-test values obtained.