Abstract
‘Izu Midori’ is a new autumnal edible pod pea variety (Pisum sativum L.) with resistance to white top disease caused by Pseudomonas, which occurs frequently in Izu peninsula. White top symptom resistance was introduced in ‘Azumino Sanjyuniti PMR’, which has with high heat tolerance. We then started to produce ‘Izu Midori’ by backcrossing ‘Azumino Sanjyuniti PMR’ with ‘Izu 1 Gou’. It is suggested that white top symptom resistance is dominant on the nucleus genome. After two backcrosses, this cultivar was selected. This cultivar shows a higher resistance to white top symptom than ‘Izu 1 Gou’. ‘Izu Midori’ was characterized by adequate plant heights, nodes, branches, first node position, as good as ‘Izu 1 Gou’. In addition, this cultivar has the similar pod quality with ‘Izu 1 Gou’, and gives heavy yield as well. For these reasons, this cultivar is expected to be cultured widely on the Izu peninsula.
