張明聰 施銀行 余合
a.雜交育種：自民國47年開始著手，作Red Creole, Early grano及San Joaquin三品種間的雜交組合，至民國58年育成南改系1號和南改系2號。
b.系統分離育種：自民國48年開始著手，作Red Creole, Early grano, San Joaquin, Early lockyer Brown之系統分離，至民國58年育成南改系6號。
c.一代雜交育種：在民國51年由早玉（Early grano）中找得雄性不稔A-pne由此並檢定出B-pne, B-26系統（此係Early lockyer Brown之後代分離系統），並用Jones法，將含有雄性不稔的因子以回交法導入B-26中，使成一優良母本，並已回交二次，供一代雜交採種用。
The New-Bred Varieties of Onion in Tainan
M. T. Chang, Y. H. Shy, H. Yu
There are so few people to study the breeding of onion in Taiwan and the cultivated varieties were all introduced from other countries. So, to study the breeding of onion must strengthen now. In Tainan District Agricultural Improvement Station (DAIS) we always pay attention to study the breeding and improvement of onion, the then, it is concluded that recent achievement as follows:
1.New-bred varieties and the breeding methods:
A. Hybridization breeding:
Using the three varieties: Red Creole, Early grano and San Joaquin as parents. The breeding program had been begun in 1958, and then the new-bred varieties T I-1 and T I-2 were obtained in 1969.
B. Pedigree method: (Line selection)
Using Red Creole, early grano, San Joaquin and early lockyer brown for systematic segregation materials. It was beginning in 1959. Then the variety of T I-6 was obtained in 1969.
C. Hybridization breeding of F1:
The male sterility A-line was found in early grano in 1962. Then the series of B-line, B-26, (It was selected from early lockyer brown) was inspected from A-line. As H. A Jones method, a good female parent (A-line) was obtained by introducing the gene of male sterility into B-26 with back cross. Twice back cross had been held for F1 hybrid seed production.
2. T I-6 is a kind of early maturing variety, which scales are in yellow color, bulbs are fullness and in flat figure and storage tolerance. If the variety cultivates in optimum sawing duration (from the beginning of September to the beginning of October) and irrigates enough in mid-growing duration (after transplanting 50 days), there will produce big and similar bulbs and high yield and suit to store for domestic consumption or prior export.
3. T. I-1 and T. I-2 are medium maturing varieties. The plants of them are similar to early grano. The former which bulbs are flat and the scales are in yellow color. But the bulbs of later one are smaller than the former, it’s scales are in red color and with strong hot-taste. The cultivation methods are as well as the common varieties.
4. The new-bred varieties are good for growing the seed production in southern and eastern area of Taiwan. The quality of seed production was 60~100 pounds per 0.1 ha. But the bulbs must be treated under 5~10℃ for 2 months before planting.
5. According to storage experiment, the three varieties could resistant 4~5 months. It means the varieties are prepared with good future in marketing adjustment for domestic consumptions. Especially, the harvest time of T. I-6 is about half a month earlier than early grano. In other word, T. I-6 is a variety which prepares very good conditions for prior export.