The invention relates to a
Helianthus tuberosus variety breeding method, which belongs to the
plant variety breeding technology field. The recyclable
seawater stress cultivation is used, and the consistence of the
seawater is set into six kinds of consistence: 0 percent, 10 percent, 25 percent, 50 percent, 75 percent, and 100 percent.
Seawater is filtered repeatedly and systematically in the field, and the breeding object is the salt-resistant high-yield and high-quality. The south
Helianthus tuberosus No.1 bred into after six generations grows strongly in the ratio of 3 to a thousand about salt soil, has
strong salt resistant property and thick stalk, and has about ten branches 1m beneath the ground; the underground tuber has thin
skin and more than ten
bud eyes; the yield per mu is about 3000kg without pests. The
dry weight of the tuber is 23-29 percent of the
fresh weight. The variety has high yield, excellent quality, and
strong salt resistance; can be cultivated in the coastal beach
saline alkali soil or the inland
saline alkali soil; can have broad application prospect in the fields of bio-
energy plant material in our country, and can promote the development of related industries.