DENSITY OF SPROUTING, FIELD GERMINATION AND STABILITY OF SPRING WHEAT PLANTS DEPENDING ON VARIETY

Abstract

The article examines the indicators of the structure of yields of spring wheat plants, depending on the variety in the conditions of the Chuvash Republic. The density of shoots is the first indicator of the structure of yield, which can be assessed visually. On its basis, it is possible to conduct a survey of crops, paying attention to the uniformity and amicability of emergence. According to the data (Makarova VM, 1995), in the conditions of the Non-Chernozem Zone, the optimum density of seedlings of grain crops should be considered no less than 400-500 plants per 1 m2 at the rate of sowing 6 million virgin grains per 1 hectare, while ensuring the field germination level 70 - 80%. It is known that not all seeded seeds are seedlings. Therefore, distinguish between laboratory and field germination. It should be noted that there is still a concept of the completeness of seedlings, which many people still understand as synonymous with field germination. During the vegetation the number of plants per unit area does not remain unchanged. Due to a number of reasons, attacks are observed in the crop, (Terekhov M.B., 2000). The survival rate of plants is the percentage of plants that have survived to harvest, or the ratio of the total or productive number of plants before harvesting to the number of shoots per m2.