In house conditions if you do not buy laboratory sowing material, so-called super-elite or elite, select seed potatoes since summer and fall. Take tubers for landing of the following harvest only from the most fruitful bushes. The size of tubers depends on assignment of seed material and duration of storage. Collect tubers of different grades in different boxes, signing them.
Selection of seed tubers of potatoes
The harvest of potatoes depends on quality of planting stock. And not only from the size of tuber or absence on tuber of visible signs of the desease. But also from that how many reproductions, that is from the moment of removal of sowing material from test tube in laboratories, tubers have worried. Ideal seed potatoes get divorced from the revitalized fabric of potatoes of certain grade and are cooked for sale of seed tubers several years.
Each next year after test tube is considered year of reproduction. And so, really good harvest is yielded by tubers from fifth to the ninth reproduction. When tubers are already enough for commercial landing, but they "have not become outdated". If you are engaged in cultivation of potatoes, then know that the best grades reduce productivity over time. Therefore, it is time to get new. And it is better to buy new seed potatoes not from grandmothers, and in the specialized companies. It guarantees big crops.
Upon purchase of planting stock choose not only taste, productivity, color, but also what terms of maturing where are zoned. Resistance of tubers to diseases is important. If you buy seed potatoes, it is the most favorable to take small tubers for further reproduction, it simply there is 1 kg more than the weight, and you will multiply new grade rather. These are tubers in 30-40 g and with a diameter of 35-50 mm.
Bushes for collecting seed tubers choose during their blossoming and dig out in few weeks after its termination. By this time the main tubers are already created. You store them separately from the main potatoes.
If you are going to plant the checked potatoes, then select tubers weighing 60-80 g in the diameter of 45-55 mm. Larger tubers demand special conditions of cultivation and the raised soil fertilizer. If you grow up early potatoes for sale, then postpone for seeds large tubers weighing 100-130 g and with a diameter of 55-65 mm and more. Such tubers have bigger reserve of nutrients to start growth and development therefore bushes will quicker ascend. However it is more difficult to store large tubers until landing.
Preparation for landing of tubers
Preparation of potatoes in 4-6 weeks prior to the planned landing begins. The important stage is to touch potatoes lifted from storage. To reject tubers with the slightest symptoms of any diseases and damages. To carefully remove the sprouts which have sprouted during the winter. They are impractical. During partition size tubers for uniform alternation of tubers of the different size in rows. It is convenient to display tubers for germination in superficial boxes with perforation. During this period it is possible to process tubers means from wreckers.
Processing by ashes and solutions macro - and microfertilizers, growth factors is useful. Only dusting by ashes accelerates emergence of shoots and improves harvest for 10-15%.
Couch seed potatoes on light at temperature 6-18os at the increased humidity of 85-90%. Landing begins after emergence of strong healthy sprouts to 1 cm. Longer sprouts will complicate landing, high probability of their damage. During landing time delete tubers without eyes and with threadlike sprouts. They will not yield harvest.