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2019, N 4 (38) |
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GENERAL AGRICULTURE, PLANT GROWING
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Borodiy S. |
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Mathematical model for yield forecast medicinal raw celandine (Chelidonium majus L.) |
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The subject of the study is the wild-growing coenopopulation of large celandine (Chelidonium majus L.). The aim of the research is to develop a mathematical model for the seasonal forecast of the phytometric parameters of the generative shoot of the celandine in wild coenopopulations for the Kostroma region. The studies were carried out in the period 1995 ... 2018. (area of distribution of large celandine over the territory of the Kostroma region) and 2014 ... 2015 (collection of field information; development of a forecast model). It was established that large celandine is found throughout the Kostroma region as a ruderal-segetal species. It is advisable to harvest the aboveground mass of celandine when the first fruits are at the stage of the beginning of ripening - the beginning of seed dispersal, the calendar dates of which are predicted with an accuracy of 99.77%. Forecasts of the dynamics of the phytometric parameters of the stem coincided with empirical data at: 98.6 ... 98.8% (shoot height); 95.2 ... 98.0% (aboveground total phytomass); 93.0 ... 93.7% (leaf weight); 94.5 ... 97.8% (stem mass); 80.8 ... 91.0% (mass of generative organs), which makes it possible to use the model in production conditions for predicting the yield of wild-growing coenopopulations. The forecast of seed mass was less accurate 69.8 ... 87.6%, so it can only be used for approximate calculation.
Keywords: CELANDINE, CHELIDONIUM MAJUS L., SHOOT PRODUCTIVITY DYNAMICS, YIELD FORECAST, MATHEMATICAL MODEL |