open access

https://hdl.handle.net/2115/47007

異なるバレイショ交配分離集団間における根系の比較

英語

1981-09-25

日本作物学会

日本作物學會紀事

50(3)

365-372

Root dry weight (DW) and its relations with other characters were investigated among six hybrid populations derived from the crosses with two main early cultivars as female parent and three breeding materials, two early and one very late, as male parent (Table 1 & Table 2). Results obtained are summarized as follows: The populations from the crosses with the late maturity male parent with larger root DW had a wider range of variation and significantly larger values in root DW, growing period and yield than those with the early maturity male parents, although tuber DW at the early stage was smaller in the populations with the late maturity parent (Fig. 1 & Table 3). The populations from the crosses with Toyoshiro as female parent with smaller root DW and leaf DW also had a smaller root DW and leaf DW than those from Danshakuimo as female parent. The growing period and yield to root DW and leaf DW were significantly higher in the populations from the crosses with Toyoshiro as female parents (Table 4). In each populations, root DW showed significantly positive correlations with leaf DW, growing period and yield (Table 5 & Fig. 2). Larger root DW resulting in higher yield should therefore be obtained more effectively from the populations derived from the crosses with the late maturity parent than from those with the early ones. A higher ratio of yield to root DW might also be effected, using Toyoshiro derived from the backcross population of S. tuberosum to a wild race.

学術雑誌論文

Version of Record

0011-1848