name
Gorbachenko Oleg Fedorovich
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Organization, job position
• All-Russian Research Institute of Oil Crops
ВРИО директора, зам. директора по науке
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Articles count: 1
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Description
The article are present the planting dates influence on the onset dates of main development phases and seed yields of the winter rapeseed and camelina. The investigations were carried out in conditions of insufficient and unstable moistening on normal black earth in the Priazovsky zone of the Azov district of the Rostov region from 2013 to 2017 years. The rapeseed variety Loris, the rapeseed hybrid ES Neptune and the camelina variety Penzyak were selected for research in two-factor field experiments. It has been established that the guaranteed yield of winter cabbage oilseeds depends on the timing of the emergence phase and the autumn's weather conditions (the sum of the effective temperatures, humidification conditions) that affect the development of the root leaf rosette. The maximum seed yield was registered in the winter rapeseed variety Loris (4.33 t/ha) in the favorable season 2013-2014 years when was sowing in the second decade of September with an autumn vegetation period of 59 days and the sum of effective temperatures about 320° C. The optimal time for sowing of winter camelina variety Penzyak is first or second decade of September. The maximum seed yield (2.04 t / ha) was obtained in 2013-2014. when was sowing in the first ten days of September with an autumn vegetation period of 70 days and a sum of effective temperatures of 417° C. It was revealed that the seeds of this plant are capable of wintering in the soil and the renewal of vegetation in the spring. The loss of harvest is up to 50 % of the overwintered plants yield that have risen in autumn under unfavorable conditions. The optimum period of autumn vegetation that allows forming the potential productivity of winter rapeseed plants can be considered 60-75 days with sufficient moisture supply and the sum of effective temperatures of 250-400° С. At the winter camelina it was 50-70 days with the sum of effective temperatures not less than 200° С
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