混合盐胁迫对鹰嘴豆种子萌发的影响

通过砂床培养试验,研究不同浓度混合盐胁迫对两个品种鹰嘴豆萌发的影响.结果表明,在混合盐胁迫下,A-1(白皮)在盐浓度0.01 mol/L时的发芽率及发芽势达峰值,分别较对照提高了14.6%,25.6%;88-1(红皮)在0.005 mol/L时的发芽率及发芽势达峰值,分别较对照提高了3.1%,6.9%.在低浓度盐分(0...     

Impact of single and co-inoculations with Rhizobial and PGPR isolates on chickpea (Cicer arietinum) in cereal-growing zone soil

Strains isolated from chickpea (Cicer arietinum L.) rhizospheric soil from selected sites in Algeria were screened for their plant-growth-promoting potential, for indole acetic acid production and P solubilization ability. Then, we selected native rhizobial strains with high nitrogen-fixing potential. On the basis of their efficiency under controlled conditions, two plant-growth-promoting rhizobacteria (PGPR) isolates and three nodulating bacteria were selected. Then, the effect of single PGPR isolates inoculation was compared to their combination with rhizobial inoculants on plant growth, on native cereal-growing soils under greenhouse conditions. No effects were observed on chickpea yield by using rhizobial inoculation alone, nor by PGPR-rhizobial co-inoculation on two soils presenting weak and no nodulation pattern in natural conditions. Only PGPR inoculation improved growth of plants on soil with no nodulation pattern. These findings emphasized inoculation on native soils at a little scale before large assays on field because no one could predict inocula behavior with native soil microflora.