日光温室秋冬番茄多抗优良品种的筛选

Comparison Test of Multi-Resistant and High-Quality Tomato Cultivars in a Solar Greenhouse During Autumn and Winter Cultivation

本试验主要对14个番茄材料进行了Ty-1,Ty-2,Ty-3,Mi-1和Cf-9共5个抗性基因的检测,并在自然条件下观察番茄植株对黄化曲叶病毒病、叶霉病、根结线虫病的抗性.生物学检测结果表明, 14个材料均含有黄化曲叶病毒病抗性基因、根结线虫抗性基因Mi-1和番茄叶霉病抗性基因Cf-9.其中, 2个番茄材料含有5个抗性基因, 8个材料含有4个抗性基因, 4个材料含有3个抗性基因.田间抗病性调查并未发现显著的感病情况.此外,还对其生长习性等13个农艺性状进行了调查和统计.综合抗病能力以及田间表现, 14,21,金棚8B等3个品种抗病能力强,生长势好,产量较高,比较适宜日光温室秋冬茬番茄的种植.

In this study, 14 tomato varieties were used to evaluate their resistance to tomato yellow leaf curl virus (TYLCV), leaf mould and root-knot nematode by natural incidence in a solar greenhouse, and TYLCV-resistance genes Ty -1, Ty -2, and Ty -3, root knot nematode resistance gene Mi -1 and tomato leaf mould resistance gene Cf -9 in them were detected with PCR. According to molecular detection, all the 14 varieties contained TYLCV-resistance gene(s), Mi -1 and Cf -9. Of them, 2 contained 5 resistance genes, 8 contained 4 resistance genes, and 4 contained 3 resistance genes. In a field resistance survey, no significant TYLCV, leaf mould or root-knot nematode was detected. In addition, 13 agronomical characters of the varieties were investigated and analyzed. Based on their comprehensive disease resistance and field performance, the varieties 14, 21, and Jinpeng8B were identified as highly disease-resistant, with the potentials of vigorous growth and high yield, and were recommended for planting in autumn and winter in solar greenhouses.