AGROMETEOROLOGICAL AND TECHNOLOGICAL CONDITIONS FOR RAPE CULTIVATION IN DOBRUDJA
Journal Title: Present Environment and Sustainable Development - Year 2013, Vol 7, Issue 1
Abstract
The rape culture has a number of disadvantages: the preparation of the germination bed is difficult if there is drought during the sowing period, and additional water supply, provided by irrigation, is necessary; rape is sensitive to frost and to great temperature alternations in winter, as well as in spring; it is sensitive to frost during the budding-flowering period. Over the recent years, the rape culture has been compromised due to climatic accidents. It is difficult to establish the optimum sowing time in autumn so that when winter comes the rape plants should display a rosette of leaves, should have a collet diameter of 1 cm ± 2 mm, should have a well developed root system, the pivot should penetrate the earth down to 10-15 cm, and the plants should be hardy (they should have sugars accumulation and not be very turgescent). These are the conditions needed for rape to resist during the harsh conditions of winter in this region. The alternation between frost and thaw, as well as frosts during the budding and flowering periods can affect the rape culture. At maturity, another danger may arise as the interval between full maturity and harvesting is short, the siliquae are slightly dehiscent and rain, at this stage, followed by summer temperatures of over 30ºC associated with wind, leads to the total shedding of the seeds and the crop may thus be completely compromised in a very short time.
Authors and Affiliations
Liliana Panaitescu, Marius Lungu, Simona Niţă
Keywords
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