设施栽培对早钟6号枇杷果实生长的影响

Facility for Cultivating Zaozhong Ⅵ Loquat

采用竹架大棚设施栽培,探索早钟6号枇杷果实生长规律及其与环境条件的关系。结果显示:处理组(设施栽培)果实采收时间比对照组提前17.74d;温度越高,棚内外的温差越大;处理组和对照组都符合Logistic(S)曲线方程;处理组累积温度在1 419.2℃、对照组累积温度在1 021.9℃时果实达到增重峰期;采用直线方程计算果实的纵径与横径生长,显示果实纵横径生长存在交替现象,交叉率在50%左右;处理组病果指数为27.33%,比对照组(19.33%)增加8个百分点,单果重比对照组减少4.2g,可溶性固形物增加22.2%,可食率减少2.74%。

This study was designed to use bamboo shed in an attempt to promote the fruit-bearing of Zaozhong Ⅵ loguat.Environmental conditions relating to loquat fruiting was investigated for the purpose of optimizing the cultivation.A random block design was applied to generate needed data.The result showed that the fruits could be harvested 17.74 days ahead of schedule with implementation of the optimized conditions in the shed.Particularly when the outside temperature was high,the more beneficial for the fruit-bearing.The plant growth curves under the experimental,as well as control conditions followed a Logistic（S） equation.The experimental growth curve yielded an accumulated temperature of 1 419.205 3℃,while the control,1 021.887 8℃.The longitudinal and latitudinal diameters of the fruit crossed at a rate of approximately 50%.The rate of diseased fruits for the experimental group was 27.33%,while the control group,19.33%.On the fruit weight,the experimental fruits tended to be 4.2 g per fruit lighter than the control.The soluble solid content of the treatment fruits was 22.2% higher,but the edible portion,2.74% lower,than those of the control.