大棚番茄不同品种与整枝方式对筋腐病发生的研究

EFFECT OF VARIETY AND TRAINING METHOD ON TOMATO BROWN STREAK IN PLASTIC HOUSE

试验选用三种我省主栽番茄品种：东农７０４、Ｌ－４０２、毛粉８０２及三种整枝方式，在早春大棚内采用随机区组试验设计，３次重复。试验结果表明，东农７０４连续摘心整枝的植株生长势弱，光合速率、根系活力小，叶绿素含量少；各花序座果率低，果实中可溶性糖、有机酸等可溶性固形物含量少；各时期筋腐病株率、病果率，病果重率最高；总产量较低。而Ｌ－４０２单干整枝的植株长势、理化指标、营养品质、产量均最高；筋腐病发生率最低，该品种及整枝方式适于低温、弱光的早春大棚番茄栽培。

Three main tomato varieties, NA-704、L-402、HP-802 and three training methods were chosen in the experiment. Randomized block design with 3 replicates was used. The experiment was carried out in early spring plastic house. The experimental results indicated that NA-704 plant of continuous top removal has weak growth rate、photo synthisis rate and vitality of root system. Chlorophyll content, fruit setting percentage of all inflorescences and the cotent of soluble sugar, organic acid of fruit are lower. The percentage of brown streak plant, fruit number, fruit weight reach the highest and the total yield is low in every stage. But L-402 plant of cordon training has strong growth rate. The physiological and quality charaters of truit and the area yield all reach the highest value. The rate of brown streak plant of the same treatment reach the lowest. So L-402 cordon training is suitable to low temperature and weak light in early spring plastic house.