Effects Of Different Cold Protection Measures On Overwintering Of Zaoheibao Grape

By studying the effects of different measures of cold prevention in the plastic greenhouses in the Taigu area of Shanxi on the wintering effect of the Zaoheibao grape,it provides a theoretical basis for the safe wintering of the grape in winter,and optimizes the cold-resisting measures for grape overwintering in the Taigu area.In this experiment,the 5-year-old Eurasian species Zaoheibao grape was used as a test material to study the effects of different cold-proof measures on the temperature of the soil layer near the grape root system,the changes of some physiological indexes of shoots and the growth of shoots.Test set up 7 treatments:1 trunk coated with white;2 stems wrapped in black film;3 insulation cotton wrapped;4 base dry set white film;5 insulation cotton cover;6 corn stover 20 cm + covered;7 shop black plastic film,not to bury Soil is the control.The test results are as follows:1.The temperature changes of the soil layer below the root depth of 5 cm and 20 cm underground were ranked as follows:corn stalk 20 cm + film covered,black mulch film>insulation cotton covering>control,stem wrapped black film,insulation tape wrapped,trunk coating White,basic set white film2.A comprehensive evaluation was performed using the cold-resistance membership function method The cold-resistance effect was ranked as stem wrapped black film>corn stalk 20 cm + film covered,black mulch film>insulation tape wrapped>basic film wrapped>insulation cotton covering>control>trunk whitening3.After the winter,the temperature of the grapes treated with the heat preservation tape was the highest,the shoots did not show mildew,and the shoots were neat,followed by the stems wrapped in black film.The germination rate was ranked as follows:heat preservation package>stem wrapped black film>corn stalk 20 cm+ Coating>Basal white film>Black mulch>Control>White trunk.4.Consider comprehensively that it is recommended to cover the roots with corn stalks 20 cm+covered with plastic mulch or black mulch in the plastic greenhouses of Taigu area in winter.Wrap the shoots with insulation tapes as a winter cold-resisting method for the grapes;the open-field cultivation can be covered with insulation and cover the required thickness.It is necessary to further study according to the actual climate conditions in various regions.