Planting Material

Planting Material

 

seeds, fruits, aggregate fruits, and parts of aggregate fruits used for planting. Planting material sometimes includes the parts of plants used for vegetative reproduction, for example, bulbs and potato tubers. In the USSR, state standards have been set for planting quality (germinating power, purity, susceptibility to disease and pests, moisture content, and 1,000-seed weight) and varietal quality (purity and, for some crops, specificity). Only certified seeds meeting these requirements may be planted. State seed inspectorates determine the quality of planting material by means of laboratory analysis, soil control, and test plots.

Planting material is divided by planting quality into three classes. Established for each class are the number of seeds for the main crop, the yield of the main crop, the amount of foreign matter, the number of seeds of other plants (including weeds), germinating power, and moisture content. For winter and spring varieties of soft wheat, the purity norms are 99 percent for class 1, 98.5 percent for class 2, and 97 percent for class 3; the germination rate is 95 percent for class 1, 92 percent for class 2, and 90 percent for class 3. Class-1 and class-2 seeds are planted for crops; class-3 seeds may be planted in exceptional cases and only in the well-tilled areas.

Planting material is also classified according to varietal properties into three categories. For most grains (including pulse crops) category-1 seeds are marked by 99.5 percent purity, cate-gory-2 seeds by 98 percent, and category-3 seeds by 95 percent. Only category-1 seeds may be planted for seed production; cate-gory-2 and category-3 seeds are used in commercial sowing.

Before storing, planting material is cleaned, sorted, and, if necessary, dried. It undergoes various types of preparation before planting. Data on the planting and varietal qualities of planting material are recorded in special registers maintained by each farm.

M. K. FIRSOVA

References in periodicals archive ?
The weakest link in the fishing industry of Uzbekistan is the production of fish planting material and the inefficient use of natural ponds and artificial ponds.
He added that the abaca production support program would be undertaken through a 'plant now, pay later' scheme, meaning that the planting material that farmers will receive is not for free.
The first plants are now harvestable for planting material.
Agartala, Oct 8 (ANI): Scientists at the Van Gaveshana Sadan in Agartala, Tripura, are helping bamboo cultivators to meet the shortage of planting material available for bamboo cultivation through tissue culture propagation.
We are getting the right planting material to introduce to the farmers, doing site selection in the right geographic locations and, over time, the processing facilities," he added.
Although soils, microclimate, irrigation and trellising systems are vital, investments made in optimization of these factors is for naught if the planting material used in the development of a new vineyard is of poor or unknown quality.
26-million planting material requirement, a total of 4.
Contract notice: "supply by purchasing seed and planting material for the needs of the territorial units falling within the territory of the kardzhali region"
The presence of even a small tuber piece in the planting material produced through this method is thought to increase field survival of tissue-cultured plantlets.
Tenders are invited for Quality Planting Material (Fruits/Flowers/Herbs/Medicinal & Aromatic Plants/Agrofores Trees/Shoots/Climbers)Year 2017-18 Document cost : INR 1500 EMD value : INR 50000 Document Purchase Start date : 29 Dec 2017 Document Purchase End date : 23 Jan 2018 Opening date : 24 Jan 2018 Period of contract : 120 Days
Tender notice number : Tender for Planting Material and Seeds