期刊论文

中文

华北农学报

1000-7091

2021

36

S01

62-71

10.7668/hbnxb.20192153

国家重点研发计划项目(2020YFD1000905-6)。

本校为第一机构

为筛选耐低钙种质,有效利用酸性红壤,扩大花生种植面积,在南方地区典型酸性低钙土壤（pH值5.44,交换性钙376.0 mg/kg,水溶性钙11.2 mg/kg）,采用大田试验研究了不施钙和施钙（CaO）750 kg/hm~2处理对105份不同地域来源花生种质资源的形态性状、叶绿素含量（SPAD值）、产量及其构成因子等24项指标及其耐低钙系数的影响。结果表明:与施钙相比,不施钙处理花生出苗率、SPAD值、荚果产量、单株饱果数、单株总果数、出仁率、荚果饱满度及籽仁品质等均有不同程度降低,其中荚果产量和空果率差异达到显著水平。通过主成分分析,可以将24项评价指标的耐低钙系数降维为8个主成分,累计贡献率为78.001%,对各主...

Screening low calcium tolerant germplasm is of great significance for the effective utilization of acid red soil and the expansion of peanut planting area.A field experiment was conducted to study the effects of application of 750 kg/ha calcium fertilizer(CaO)and no application of calcium fertilizer(CK)on 24 indexes including morphological traits,chlorophyll content(SPAD),yield and its components and low calcium tolerance coefficient of 105 peanut germplasm resources from different regions in typical acid low calcium soil(pH 5.44,exchangeable calcium 376.0 mg/kg,water-soluble calcium 11.2 mg/k...