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六个平欧杂交榛品种自然越冬过程中枝条特性与抗寒性评价

作  者:
曹阳;梁锁兴;侯东梅;席海源;王文平;张明丽
单  位:
山西农业大学果树研究所
关键词:
平欧杂交榛;渗透调节物质;保护酶活性;抗寒性评价;抽条率
摘  要:
以‘平欧28号’‘达维’‘玉坠’‘辽榛8号’‘B-21’和‘85-124’等6个品种的一年生枝条为试材,采用田间调查的方法,在山西地区植物越冬期即2019年12月至2020年2月,测定渗透调节物质含量和保护酶活性以及田间抽条率调查,研究了越冬期各品种枝条的生理变化和抗寒性,以期推动平欧杂交榛在山西地区新品种选育和规模化栽培的科学发展。结果表明:在山西地区自然越冬期,平欧杂交榛枝条中丙二醛(MDA)、可溶性蛋白质、可溶性糖含量均呈先上升后下降的趋势;过氧化物酶(POD)活性和超氧化物歧化酶(SOD)活性均呈下降趋势;‘达维’和‘平欧28号’抽条率为0%,‘85-124’抽条率最高;‘达维’在越冬期间除MDA含量最低外,其它各项生理指标均最高;‘85-124’则与其相反。对6个品种进行抗寒评价,其抗寒性由强到弱依次为‘达维’>‘平欧28号’>‘B-21’>玉坠>‘辽榛8号’>‘85-124’。
译  名:
Evaluation of Shoot Characteristics and Cold Resistance of Six Hybrid Hazelnut Varieties During Natural Overwintering
作  者:
CAO Yang;LIANG Suoxing;HOU Dongmei;XI Haiyuan;WANG Wenping;ZHANG Mingli;Pomology Institude, Shanxi Agricultural University;
关键词:
hybrid hazelnut;;osmotic regulators;;protective enzyme activity;;cold resistance evaluation;;extraction rate
摘  要:
One-year-old shoot of six varieties, ‘Ping′ou 28' ‘Dawei'‘Yuzhui'‘Liaozhen 8'‘B-21'and ‘85-124' were used as test materials.The contents of osmotic adjustment substances, activities of protective enzymes and the percentage of field cuttings were measured during the overwintering period from December 2020 to February 2019 in Shanxi Province, in order to promote the scientific development of hybrid hazelnut breeding and large-scale cultivation in Shanxi Province.The results showed that the contents of MDA,soluble protein and soluble sugar in hybrid Corylus heterophylla cv.‘Ping′ou'were increased firstly and then decreased,and the activities of POD and SOD were decreased‘Dawei'and‘Ping′ou 28'had 0%,and ‘85-124'had the highest percentage,and ‘Dawei'had the highest percentage of all physiological indexes except the lowest MDA content,while‘85-124'had the opposite.The cold resistance of 6 varieties was evaluated,the order from strong to weak was‘Dawei'>‘Ping′ou 28'>‘B-21'>‘Yuzhui'>‘Liaozhen 8'>‘85-124'.

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