摘要
试验以田间调查发现的仁用杏优株8年生盛花期花枝为试材,利用人工霜箱明确花器官过冷却点并进行低温处理后,分别以其花瓣,雄蕊,雌蕊为试材,通过测定电解质外渗率、超氧化物歧化酶(SOD)活性、丙二醛(MDA)含量、可溶性蛋白含量对其抗寒能力进行排序,为新品种选育提供理论依据。结果表明:优异种质抗寒性强弱顺序为"优株Ⅰ号">"优株Ⅱ号">"优一">"龙王帽"。花器官抗寒能力顺序为花瓣>雄蕊>雌蕊。
The flower shoots of 8-year-old excellent apricot trees found during the investigation in field were used. After low temperature treatment using the artificial cream boxes, the supercooling point of floral organs was determined. To compare their cold resistance capacity, the petal, stamen and pistil were used to measure the electrolyte leakage, superoxide dismutase activity, malondialdehyde content and soluble protein content. The results showed that the order of cold resistance in excellent apricot germplasm was ＂Germplasm Ⅰ＂〉 ＂Germplasm Ⅱ＂ ＂Youyi＂〉＂Longwangmao＂. The cold resistance capacity in floral organs was petal〉stamen〉 pistil.
出处
《河北农业大学学报》
CAS
CSCD
北大核心
2010年第3期37-41,共5页
Journal of Hebei Agricultural University
基金
国家自然科学基金项目(C041102)
河北省自然基金(C2009000552)
河北省科技支撑计划项目(09230603D
06220117D-16)
关键词
仁用杏优异种质
花器官
抗寒性
过冷却点
Kernel-apricot germplasm
floral organ
cold hardiness
supercooling point
