บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Improvement of the horticultural traits of Cavendish banana (Musa spp., AAA group). I. Selection and evaluation of a semi-dwarf clone resistant to Fusarium wilt.

Tang ChingYan; Liu ChengChiang; Tai ChiHsieh; Chiu TsanHsiu; Hwang ShinChuan;

Journal of the Chinese Society for Horticultural Science Year: 2000 Vol: 46 Issue: 2 Pages: 173-182 Ref: 18 ref.

2000

บทคัดย่อ

Improvement of the horticultural traits of Cavendish banana (Musa spp., AAA group). I. Selection and evaluation of a semi-dwarf clone resistant to Fusarium wilt.

Nine apparently dwarf clones were selected from a tall and Fusarium oxysporum f.sp. cubense resistant banana cultivar Tai-Chiao 1 by clonal selection through somaclonal variation. One of the clones, TCI229, was proven to be semi-dwarf and retained resistance to Fusarium wilt (race 4). Follow-up experiments, including preliminary and advanced field trials and 26 on-farm trials, were conducted to evaluate its potential for commercial production. The growing cycle, plant and fruit characteristics and postharvest qualities were investigated. Average plant height of TCI229 was 190-240 cm, shorter than Tai-Chiao 1 by 60-90 cm. TCI229 showed a tendency for early shooting, but the number of days to harvest was similar to that of the parent. The number of hands was slightly higher than in the parent, but the number of fingers per bunch was similar. Bunch weight in TCI229 ranged from 17 to 26 kg, which was slightly lower than in Tai-Chiao 1 by 1-2 kg, with a more significant difference in the month of Apr

il. Comparison of fruit weight per hand and average finger weight showed that TCI229 was lighter than the parental cultivar. Thus, small finger size is the main reason for lower bunch weight in TCI229. The occurrence of uneven degreening after ripening was low in TCI229 and its fruit quality was as good as that of Tai-Chiao 1. Because of the semi-dwarf characteristics in TCI229, it has the advantages of wind tolerance and labour saving. TCI229 has potential for commercial production in southern Taiwan where Fusarium wilt is the major constraint to banana production.