Cropping types, utilizing characteristics of the beta-carotene-rich interspecific hybrids between Allium fistulosum L. and Allium schoenoprasum L.
2010
Sueyoshi, T., Fukuoka-ken. Agricultural Research Center, Chikushino (Japan) | Umehara, M. | Shimomura, K. | Koga, T.
'H7-2' and 'H15-3', interspecific hybrid lines between Allium fistulosum L. and Allium schoenoprasum L., have vegetative propagation characteristics and were observed to be dormant twice a year: in winter, that is from the end of November to the middle of February, and in early summer or at the end of May. Their early summer dormancy was lighter than that of A. schoenoprasum L. The hybrid bulbs are suited to collection at the end of May and replanting from early June to early July. The hybrids cultivated in summer allow harvesting from early July to the middle of August, just when A. schoenoprasum L. cannot be harvested. Hybrids propagated by tillering are suitable for vegetative propagation cultivation. The beta-carotene content of the hybrids at a young developmental stage, with leaf blades of 5 mm in diameter in August, is approximately twice as much as that of A. fistulosum L. with the same diameter. These results suggest that the 'H7-2' and 'H15-3' are usable as a new beta-carotene-rich vegetable of the Allium species during the summer season.
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