We are searching data for your request:
Upon completion, a link will appear to access the found materials.
Parthenocarpic cucumbers gained popularity and began to be massively cultivated in personal plots for a long time. Most often they are planted in greenhouses.
What is parthenocarpic hybrid
Parthenocarpic varieties and hybrids of cucumbers are able to form ovaries without pollination. On a section such greens most often do not have seeds. In addition to seedless forms, parthenocarpic cucumbers with seeds are quite common, having a pear-shaped or hook-shaped shape with a thickening at the site of seed concentration.
Parthenocarpic cucumbers have a number of advantages compared to other varieties and hybrid forms:
- growth power and fruiting abundance;
- the absence of genetically embedded bitterness in zelenets;
- continuity and duration of fruiting;
- resistance to not very favorable weather factors;
- resistance to defeat by many diseases characteristic of cucumbers.
The advantage of such cucumbers, which is especially important when cultivated in a greenhouse, is the lack of the need to attract pollinating insects to plants. The few disadvantages of parthenocarpic hybrids include the presence of the ampelous structure of branches, which involves tying them to trellises, as well as the need to remove side shoots. In addition, it should be borne in mind that a significant part of parthenocarpic hybrids are unsuitable for canning and pickling.
Parthenocarpic cucumbers: variety selection
Popular parthenocarpic varieties
The demand for parthenocarpic varieties and hybrids is growing every year. As a rule, such cucumbers are recommended for cultivation in greenhouse conditions.
|Grade name||Grade description||Ripening period||Average yield||Disease resistance|
|"Heroic strength"||The length of the oval-cylindrical greens is from 8 to 13 cm. Weight is about 125 g. The pulp is dense, crunchy, without bitterness.||Early hybrid||About 11.5 kg per square meter||Resistance to damage by olive blotch, PTO, tolerance to false and powdery mildew|
|Makar||The length of the fusiform-cylindrical green Zeiss is from 14 to 19 cm. The surface is tuberous, white-thorny. The pulp is dense, crisp, without bitterness. Average weight 90 g||Early hybrid||About 11.5 kg per square meter||Resistance to VOM damage, olive spotting, relative resistance to root rot|
|Augustine||The length of the cylindrical zelenets is from 11 to 15 cm. The surface is coarse-humped. The pulp is tasty, without bitterness. Average weight 100g||Early ripe hybrid||About 260 - 440 kg / ha||Resistant to downy mildew|
|Agnes||The length of the cylindrical zelenets is from 11 to 17 cm. The surface is finely tuberous. The pulp is juicy, crispy, without bitterness. Weight is about 90 g||Mid early hybrid||About 9 kg per square meter||Resistant to downy mildew|
|"Geisha"||The length of the cylindrical shape of green leaves is from 10.5 to 14.5 cm. The surface is beautiful and smooth. The pulp is juicy, aromatic, without bitterness. The average weight of about 110 g||Late ripe salad hybrid||About 6-7 kg per square meter||Powdery Mildew Resistant|
|Hector||The length of the cylindrical shape of green leaves is from 9 to 11 cm. The surface is coarse-humped, with white spikes. The average weight of about 97 g. The pulp is very tasty, fragrant and crispy.||Ultra-early hybrid||About 4-6 kg per square meter||Resistant to peronosporosis|
|"Noble"||The length of the cylindrical shape of green leaves is from 10.5 to 12.5 cm. The surface is tuberous. Average weight 113 g. The flesh is crispy, aromatic, without bitterness.||Mid-early salad hybrid||About 6-7 kg per square meter||Powdery Mildew Resistant|
|"Ksenia"||The length of the cylindrical shape of Zelentsy is from 10.5 to 17.5 cm. The surface is tuberous. Average weight 113 g. The flesh is crispy, aromatic, without bitterness.||Mid-early salad hybrid||About 12 kg per square meter||Powdery Mildew Resistant|
|"Lapland"||The length of the cylindrical shape of green leaves is from 9 to 11 cm. The surface is tuberous. Average weight 65 g. The flesh is sweetish, aromatic, crunchy, without bitterness.||Early ripe salad hybrid||About 11.5 kg per square meter||Powdery Mildew Resistant|
|"Ant"||The length of the oval-cylindrical zelenets is from 8.5 to 11.5 cm. The surface is coarse-humped. The pulp is sweet, crispy, without bitterness, with a pronounced cucumber aroma||Early hybrid||About 11.5 kg per square meter||Resistant to olive blotch, VOM-1, powdery mildew, tolerant to downy mildew|
Partenocarpic varieties of cucumbers can be planted both in the seedling method, and by conventional sowing in previously prepared soil.
Before sowing seed material should be prepared. To do this, the seeds should be heated for at least five days at a temperature of 50 ° C and during the day at a temperature of 70 ° C. Soaking seeds in a solution based on copper sulfate, pharmaceutical boric acid, manganese sulfate and zinc sulfate with the addition of ammonium molybdate is very effective.
Good results are provided by short-term soaking of seeds in a 0.5% solution of KMnO4. The soaking process lasts about 11 hours, after which the seeds should be dried.
As a dressing agent for cucumber seeds, bacterial preparations based on the strains of Bacillussubtilis, Pseudomonas fluorescens and Ps are allowed to use today. aureofaciens.
For sowing and planting seedlings of parthenocarpic cucumbers, you should use areas with fertile, light in mechanical composition, loose soil, which is well seasoned with organic fertilizers. Cucumbers need neutral or, in extreme cases, slightly acidic, well-warmed soil.
The most suitable precursors for such cucumbers are potatoes, onions, cabbage, tomatoes and various vegetable siderates, including alfalfa, clover, mustard, rye and oats.
Fresh manure is introduced most often during the autumn digging of the soil, which allows you to structure the soil. The application rates of fresh manure in the fall, depending on the quality of the soil, can be 6–9 kg per square meter. Mineral fertilizers are applied to cucumber ridges during spring digging. It is recommended to use ammonium nitrate at a rate of 15 g, superphosphates at a rate of 40 g and wood ash at a rate of 25 g per square meter. Complex fertilizers for vegetables are applied according to the attached instructions.
Dates and schedule
When growing seedlings, special attention should be paid to compliance with basic phytosanitary standards. For growing seedlings, containers with a volume of 0.7-0.8 liters are used. The age of seedlings at the time of planting should be 20-25 days. Seedlings should have three or four healthy true leaves, and also have a well-developed root system.
Sowing of seed material on ridges of open ground should be carried out in the first decade of June, when there is no threat of freezing frost, and the soil is warm enough. Sowing seeds on greenhouses can be two weeks earlier. The depth of laying the seed material is about 3 cm. Crops should be covered with a film to create optimal microclimatic conditions. Planting seedlings is carried out according to the scheme 50-55 x 35-40 cm.
You may also be interested in an article in which we talk about the features of growing cucumbers in polycarbonate greenhouses.
Most often, it is recommended to grow parthenocarpic cucumbers in greenhouse conditions, where it is much easier to create optimal conditions for plant growth and development.
Water for irrigation should only be warm, well warmed up in the sun. Before mass fruiting begins, cucumbers should be watered at least three times a week. After the ovaries form on the plants, the daily watering should be about 6 liters per square meter of planting area. Watering is done under the root, after sunset.
Twice a month, fertilizing plants should be done. The optimal solution is the one obtained by diluting 12 g of urea, 25 g of superphosphate and 18 g of sulfate or potassium chloride in a bucket of warm water. The standard flow rate of such a solution is about 10 liters per 4 square meters of landing area.
High-quality, systematic foliar feeding of cucumbers has a good effect, for which it is recommended to use 4.5 g of ammonium nitrate, 9 g of superphosphate and 7.5 g of potassium sulfate in a bucket of warm water. Spraying should be carried out in the evening.
It is allowed to perform the formation of cucumber bushes after the appearance of nine true leaves. The basic formation scheme involves the removal of all the primordia of branches and flowers on the main cucumber lash to a height of half a meter.
Next, lateral shoots that are formed from the sinuses of the next five leaves are nipped over the first leaflet, and all female flowers are removed. Above, you need to leave about three or four ovaries on the stepsons and about five ovaries on the main stem. All extra stepchildren are necessarily removed.
To protect cucumber plantings from the main, most dangerous diseases, the following preventive measures are recommended:
- spraying during the growing season with a 0.1% solution of Fitolavin-300;
- watering under the root at the phase of formation of the 2-4th true leaf with a solution of Fitolavin-300;
- spraying during the growing season with Alirin-B or Gamair-SP.
A good result is the use of well-known folk remedies, among which the infusion of tomato or potato tops is particularly effective.
Currently, the selection of varieties and hybrids of cucumbers is very extensive and can satisfy even the most demanding vegetable grower. Parthenocarpic cucumber hybrids are very convenient to grow. They can be grown as seedlings, and by direct planting of seeds on the ridges.
How to plant cucumbers
Such hybrids show excellent yields, excellent adaptability to growing conditions and form Zelentsy with very high taste and marketability. To get a really worthy crop of very tasty and beautiful greenery, it is enough to adhere to the cultivation agricultural technique and not neglect the basic rules for care.