学术
摘 要:
采用盆栽试验，设置不施磷（P0）和施0．15mg P2O5／kg土（P1）两个处理，研究了33个河南省地方性大豆品种磷素营养特性的差异，旨在为磷高效大豆种质资源的开发利用提供依据。结果表明：根据大豆品种不同磷营养性状进行聚类分析，可将磷胁迫条件下供试大豆品种分为3类，其中第一类品种（产量高、磷吸收量大、磷利用效率中等）综合磷营养性状值最优；磷充足条件下供试大豆品种可分为4类，其中第一类品种（籽粒产量高，磷吸收量大，磷利用效率较高）综合磷营养性状值最好。相关分析表明，大豆苗期与成熟期的磷吸收量之间的相关性达显著以上水平（P0，r=0．5096^＊＊；P1，r=0．3596^＊）；大豆苗期，磷素吸收总量和植株生长量的相关性较高（PO，r=0．8124^＊＊；P1，r=0．8724^＊＊），对生长起决定作用；成熟期，磷素利用效率对籽粒产量的影响有所增加，但是磷素吸收总量对籽粒产量的影响仍大于磷素利用效率。[著者文摘]
文章出处:
《干旱地区农业研究》-2008年26卷1期 -175-180页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1000-7601（2008）01-0175-06
Studies on the difference of phosphorus nutrition characteristics among soybean varieties in Henan Province
HAN Yan-lai, LI Qing-song, WANG Yi-lun, WANG Qiang, MIAO Yu-hong, TAN Jin-fang （ College of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, China）
Abstract:
The difference of phosphorus nutrition characteristics of 33 soybeans varieties were studied with pot experiment and with two phosphorus fertilizer（P2O5） rate treatments of P0（0 mg/kg） and P1 （0.15 mg/kg） to provide evidence for exploration and utilization of soybeans phosphorus efficiency germplasm. The results showed that in P deficient condition, the tested soybean varieties were classified to three classes by dendrogram by those nutrition traits, among which classl （with highest seed yield and P accumulation quantity, and with medium P utilization efficiency） showed best complex phosphorus nutrient trait; in P abundant condition, the tested soybeans varieties were classified to four classes, among which class 1 （with highest seed yield and P accumulation quantity, and with higher P utilization efficiency） showed best complex phosphorus nutrient trait. Statistical analysis showed that the correlation between the plant P accumulation in seedling and harvesting reached over significant level（P0, r = 0. 5096^＊＊ ;P1, r = 0. 3596^＊ ）; in seedling, the plant P accumulation had significant correlation with plant dry weight （P0, r = 0. 8124^＊＊ ; P1, r = 0. 8724^＊＊） and dominated the plant growth; in harvesting, the effect of P utilization on seed soybean yield increased;but which still was less than that of P accumulation.[著者文摘]
Key words:
soybean; variety; phosphorus nutrition characteristic
基金资助:
河南省农业综合开发项目（30200108）;河南农业大学博士启动基金资助项目（30200141）
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