摘要
对2年生甜樱桃幼树的主干进行了8种增温防护处理,经自然越冬后统计冻害情况,以期探究不同防护处理对甜樱桃(Prunus avium L.)幼树越冬能力的影响。结果表明:培土+草帘子与培土处理可有效减轻甜樱桃幼树冻害的程度,主干树皮裂口、主、枝干韧皮部褐变防寒等级均为Ⅰ级,新梢枝条萌芽率呈极显著差异,与CK相比分别提高30.16%、26.11%,其中培土+草帘子处理的芽褐变率最低,仅为12%;草帘子、培土+毛毡处理的主干树皮裂口防寒等级为Ⅰ级,其韧皮部褐变均为Ⅱ级,新梢枝条萌芽率呈显著差异;塑料薄膜、毛毡、涂白剂、石灰水处理防护效果不理想,各形态指标冻害较为严重。试验表明,培土+草帘子处理下的甜樱桃幼树越冬能力最强,培土处理表现出防护效果次之,二者处理下可有效提高甜樱桃幼树的越冬能力,适宜在实际生产中应用推广。
To explore the effect of different protective treatment on winter hardiness of young sweet cherry cultivation,8protective methods were used which could warm the trunk of 2-year-old sweet cherry trees,and then got a quick statistic about frozen injury after overwintering.The results showed that earth up＋straw cover and earth up could alleviate the freezing damage effectively,the browning cold degree was the class I for the bark chinks of the trunk and phloem browning of branches,it respectively increased 30.16%,26.11%than CK,the germination rate of newborn branches was very significantly different,but the lowest rate of phloem browning was only 12%for earth up＋straw cover among them;the browning cold degree for the bark chinks of the trunk about straw cover,earth up＋felt were the class I,phloem browning just for classⅡ,it was significantly different for the germination rate of newborn branches;rest of them were all undesirable,such as plastic film,felt,coated white agent,lime water,the morphological indexes of frozen damage was more serious.The study showed that earth up＋straw cover was better than earth up,but both of them could effectively improve the winter hardiness of young sweet cherry cultivation,it could be an applicative measure applicated in production.
出处
《北方园艺》
CAS
北大核心
2017年第6期35-39,共5页
Northern Horticulture
基金
国家林业公益性行业科研专项资助项目(201304714)
关键词
甜樱桃
保温措施
冻害指数
防寒等级
sweet cherry
warming preservation measures
freezing damage index
rank of winter protection
