We compared the flowering patterns of wild and cultivated carrot genotypes in the context of quality carrot seed production. Wild carrots exhibited higher overwintering survival, thrive in different environmental conditions, have a more flexible life history approach, and attract reward pollinators better than cultivated carrots. Our findings provide baseline information for policymakers, scientists, industrialists, and growers to control wild carrots and produce genetically pure commercial seeds by incorporating knowledge of lifecycles and flowering behaviour of wild and cultivated carrots.

There are various methods available for the calculation of critical soil test values. We provide a new method that overcomes the shortcomings of previous approaches and provides a result for critical soil test value that is intermediate to the conventional Mitscherlich and the arcsine-log calibration curve (ALCC) methods. We recommend that this new proposed method be applied to a broad range of soil test data sets in order to establish its utility as the preferred method.