Tomato dehiscent fruit is what reason, tomato dehiscent fruit

Tomato dehiscent fruit often happen Yu Youguo period and mature period, a great influence on commercial tomatoes, give farmers caused serious economic losses.So farmers have to strengthen the prevention and control measures of the disease.So, tomato dehiscent fruit is what reason?The tomato dehiscent fruit?Below will be for everyone to do detailed introduction:

What's the reason why tomatoes dehiscent fruit

1, variety characteristics.In general, the skin slants thick, resistant varieties of transportation, the ring slightly less;The skin thin, some varieties are more serious.So, choose the variety is key to select the skin resistance varieties suitable to storage and transportation, thick.

2, fresh air is not appropriate.PengShi big temperature gap between day and night.Fruit, leaf dewing phenomenon is seen.If surface condensation is more, in the morning suddenly the fresh fruit surface moisture to evaporate quickly, prone to farmers say the phenomenon of "the wind sweep the fruit", show the fruit surface ring crack.Therefore, must be timely snort.Many farmers believe that ring crack of tomato and cucumber Jun skin, such as surface dew disappear before the fresh fruit can be effectively avoided.Advised farmers in the morning when the temperature of 27-28 ℃, the fruit surface dewing fade after ventilation, help reduce dehiscent fruit.When you meet the windy weather to avoid the wind of tomato fruit straight, also can effectively reduce dehiscent fruit.

3, and water supply imbalance.Tomatoes at 7 to 20 days after flowering is fruit rapid expansion period, the need for adequate water supply, in order to improve the yield.If appear uneven drought and flood, fruit is prone to ring crack phenomenon.Therefore, tomatoes after entering of fruiting, according to the soil moisture content, PengShi timely watering fertilizer, ensure wet, but did not exhibited the flood water.

4, picking fruit too late.Fruit ripening period have a swollen period, if not in time to pick fruit, prone to longitudinal tiny cracks;If picking fruit too late that is often said that "very well", will appear from the peduncle long crack down.So let's remove in time for the fruit to the commercial.

5, in addition, spraying concentration on the high side, fruits are also prone to dehiscent fruit.Spraying high temperature or spraying time at noon, liquid volatilizes quickly, the fruit surface residual liquid concentration, rapidly under the "stimulus" of the medicine, the skin is easy to crack, dehiscent fruit.Therefore, spraying at 9:00 in the morning at eleven o 'clock to choice, fruit surface after eliminating the dew.When dispensing according to the pesticide acid, alkaline, scientific distribution.Don't mess with pesticide for prevention being comprehensive, lead to the adr, and the tomato dehiscent fruit.

Tomato dehiscent fruit

1, early fruit enlargement: keep the soil moist, control the relative humidity, not dry and wet, prevent light direct illuminate the fruit, prevent skin aging.

Turn color maturity: avoid flood irrigation, keep soil moisture, avoid canopy temperature difference is too big, avoid the cold wind blowing directly on fruit surface.

2, calcium are tomato dehiscent fruit, so calcium is very important to preventing dehiscent fruit.When applying fertilizers, the use of calcium phosphate or calcium-magnesia phosphate fertilizer.In seedling stage and plant growth stage continuous spraying 300 times of milk or soya-bean milk, also can grow in the fruit development period spraying calcium compound micronutrient fertilizer such as calcium chloride solution.

3, training pruning has exquisite.In more easily dehiscent fruit season with double stalk pruning or stay pruning.Later is more collateral, collateral, QiaJian after every collateral saved a piece of leaf, to ensure that the plants have more growing point and function, this method can obviously improve the occurrence of tomato dehiscent fruit.

4, if found in turn mature period of color, fruit dehiscent fruit, can pick ahead of schedule on the rows, let it slowly turn color, generally do not dehiscent fruit.