Artificial frost treatment methods with stone fruits

摘要

Routine application of artificial frost treatment needs a detailed, exact technology, whichudwould ensure the reliability of the results obtained. Buds being on spurs loose their frostudresistance sooner because of their quick development. According to these results toudexamine samples containing both types of buds can lead to significant mistakes.udConsidering our experiences it seems that a sample containing 200 buds provides theudreliable correctness. Further increasing of sample size decreases the value of deviation butudit is not proportional to the work needed for the experiment. The following treatments areudsuggested: deep dormancy phase: -24 - -26°C, directly after deep dormancy:-21 - -24°C.udbeginning of February: -19 - -21°C, two weeks before blossoming -11- -12°C. two -daysudbefore blossoming: -4 - -6°C.