Donald McEwan AlexanderDonald McEwan Alexander worked at CSIRO Merbein as a Senior Research Scientist for almost 40 years and is now retired. He published many papers, reports and booklets related to grape vines, citrus and avocados. During the 1970s he led a program introucing various new crops and new varieties into Australia, including avocado, mango, cashew, custard apple, Chinese date and others. Read More Read Less