Borodiy S., Borodiy P. Mathematical model morphometric parameters of generative escape common tansy (Tanacetum Vulgare l.) to predict the yield of cultivated plantations, planted annuals clones . Electronic science-productive magazine "AgroEcoInfo", 2018, N 2

2018, N 2 (32)

PLANT GROWING

*Borodiy S., Borodiy P.*
Mathematical model morphometric parameters of generative escape common tansy (Tanacetum Vulgare l.) to predict the yield of cultivated plantations, planted annuals clones
The subject of the study is the cultural plantation of tansy. The aim of the research is to develop a mathematical model for forecasting yields of cultivated tansy common plantations, planted by annual clones. The research was conducted in 2013 ... 2015. on the experimental field of Kostroma State Agricultural Academy. The soil is sod-podzolic medium loamy, the humus content is 1.85%, P2O5 is 135.33, K2O is 107.17 mg / kg soil, pH is 5.41. Clones were taken from annual shoots of spring wild coenopopulations in the spring of 2013. Clones were planted with rows of 70 cm and a distance between plants 30 cm. Care of the plantation included inter-row treatments to a depth of 2 ... 3 cm. It was established that the forecast error of the calendar start date for the collection of inflorescences of plants of the second and the third year of life did not exceed two days. The dynamics of the height of the generative shoot for plants of the second year of life was predicted with an accuracy of 91.43%, for the third - 91.49%. The mathematical models for the forecast worked with accuracy: the weight of overground total phytomass - 79.39 ... 99.84%; weight of aboveground active phytomass - 75.03 ... 99.39%; weight of leaves - 60.31 ... 99.88%; stalk weight - 63.96 ... 97.12%; weight of inflorescences is 67.40 ... 83.92%, weight of the dead phytomass is 45.45 ... 99.29%. The yield of inflorescences and by-products is calculated as the product of the forecast of the weight of phyto-organs by the number of generative shoots per unit area. The accuracy of the models makes it possible to calculate the forecast of the plantation yield for 2 ... 3 months before the collection of medicinal raw materials. Keywords: COMMON TANSY, TANACETUM VULGARE L., DYNAMICS OF SHOOT PRODUCTIVITY, YIELD FORECAST, MATHEMATICAL MODEL