摘要
为明确燕麦不同磷效率基因型对不同无机难溶磷源供磷的活化利用差异,选择燕麦磷高效基因型56和磷低效基因型60为试材,采用土培盆栽试验,研究Al-P、Fe-P、K-P单一磷源供磷条件下,植株磷含量、地上部磷含量、根系磷含量、根冠比、根际土壤无机磷含量及组分的差异。结果表明:在供磷条件下,燕麦磷高效基因型56的地上部磷含量高于磷低效基因型60;3种无机磷源对两种燕麦基因型的有效性为K-P>Al-P>Fe-P;燕麦磷高效基因型56活化吸收土壤中OH-Pi、dil.HCl-Pi的能力强于磷低效基因型60;燕麦磷高效基因型56对3种单一磷源的吸收效率都要高于磷低效基因型60。
In order to clarify the genolypes differenee of activation and utilization characteristics to inorganic Phosphorus, phosphorus efficient genotype 56 and Phosphorus inefficient genotype 60 were used. The potted soil experiment was employed to evaluate their differences in plant,shoot and root phosphorus content, root/ shoot ratio, inorganic phosphorus fractions under three inorganic phosphorus named Al-P、Fe-P、K-P. Results showed that shoot phosphorus content of phosphorus efficient genotype 56 higher than Phosphorus inefficient genotype 60; the availability of three inorganic phosphorus supplies to two oats genolype is K-P〉Al-P〉Fe-P; Phosphorus efficient genotype 56 had stronger ability to utilize and assimilate OH-Pi,dil.HCl-Pi than phosphorus inefficient genotype 60 in soil; the difference in the activation and utilization of inorganic phosphorus was shown on the two insoluble inorganic phosphorus supplies and it found that phosphorus utilization efficieney of phosphorus efficient genotype 56 was higher than that with phosphorus inefficient genotype 60 under three inorganic phosphorus.
作者
赵攀衡
齐冰洁
贺鑫
ZHAO Panheng;QI Bingjie;HE Xin(College of Agronomy,Inner Mongolia Agricuhural University,Hohhot 010019,China)
出处
《北方农业学报》
2018年第4期45-51,共7页
Journal of Northern Agriculture
基金
国家自然科学基金项目(31460328)
关键词
燕麦
磷效率
难溶性
无机磷
Avena sativa L
Phosphorus efficieney
Insoluble
Inorganic phosphorus
作者简介
赵攀衡（1991-），男，硕士研究生，研究方向为燕麦遗传育种的研究工作。;通讯作者：齐冰洁（1971-），女，副教授，博士，主要从事作物遗传育种的研究工作。
