葡萄一年生枝基部节间营养水平及植株抗寒性

Nutrition of Stemsin Basal Part of One-Year Old Shoots and Cold Hardiness of Plants

采用蒽酮法测定了河北中部地区和东北部地区巨峰葡萄1 a生枝基部各节间的营养成分,结合葡萄越冬表现,对枝条营养水平与植株抗寒性进行了分析。结果表明:河北东北部昌黎地区的1 a生巨峰葡萄枝条基部1～6节中糖含量、淀粉含量较高、节间较粗,而节间长度没有显著差异。在不采取冬季埋土防寒条件下,昌黎葡萄园受冻株率显著低于定州葡萄园,表明葡萄1 a生枝基部节间贮藏养分多少与植株抗寒性密切相关。同一枝条基部1～6节的节间粗度逐渐减小,节间长度逐渐增大,但贮藏养分状况基本相同。

The nutrition of stems in basal part of one-year old shoots of Kyoho grape,which were taken from vineyards located at both central Hebei and northeast Hebei province was studied by using anthrone method.The relationship of shoot nutrition level and plant cold hardiness was discussed according to the plant appearence of tolerating to low temperature over the winter.The results showed that the stems of the first to sixth nodes in the bottom of the one-year old shoots taken from Changle,northeast of Hebei had higher sugar content and starch content,and bigger diameter,but there was no significant difference in terms of the length of nodes.Under the condition of without burying the vines into soil practice during the winter,the percentage of plants with low temperature enjury in Changli vineyard was significantly lower that that in Dingzhou vineyard.It suggested that the storage nutrition level in stems of the basal part of one-year old shoots was highly correlated with the plant cold hardiness.In one shoot for the six stems sampled,the diameter of the stems decreased and the length increased gradually from the bottom one,but there was no significant difference among them in the storage nutrition level.