Influence of plant-growth-promoting bacteria on germination, growth and nutrients' uptake of Onobrychis sativa L. under drought stress
Influence of plant-growth-promoting bacteria on germination, growth and nutrients' uptake of Onobrychis sativa L. under drought stress
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DOI：
10.1080/17429145.2017.1316527
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发表时间：
2017-01-01
影响因子：
3.2
通讯作者：
Shirmohammadi, Ebrahimi
中科院分区：
文献类型：
--
作者：
Delshadi, Somayeh;Ebrahimi, Mahdieh;Shirmohammadi, Ebrahimi
本试验研究了促生长细菌（Azotobacter vinelandii = A, Pantoea agglomerans + P. putida = P， A + P联合对照）对干旱胁迫（田间容量（FC）、0.7 FC、0.4 FC）下Onobrychis sativa L.萌发、生长和养分吸收的影响。结果表明：在FC水平上，最高发芽率与最低发芽率分别与磷处理和对照处理有关；在FC水平上，最大根长和茎长与处理A有关。在0.7 FC水平上，A + P处理的最大茎干重达到最大值。根系干重最低的FC水平也与A + P处理有关。在0.7 FC和FC水平下，生物肥料对增加养分吸收的影响最大。0.7 FC和FC水平的肥料对干旱胁迫的缓解作用不显著，提高了植株的性状。
The study was conducted to investigate the effect of growth-promoting bacteria (Azotobacter vinelandii = A, Pantoea agglomerans + P. putida = P, combined A + P, control) on the germination, growth and nutrient uptake of Onobrychis sativa L. under drought stress (field capacity (FC), 0.7 FC, 0.4 FC). The results showed that the highest and lowest germination rate (GR) was related to the P and control treatments in FC level, respectively. The maximum root and shoot length at the FC level was related to the treatment A. In the A + P treatment, the maximum shoot dry weight was measured in 0.7 FC level. The lowest root dry weight was also related to the A + P treatment in the FC level. Bio-fertilizers had the maximum impact in increasing the nutrients uptake in 0.7 FC and FC levels. The fertilizers in 0.7 FC and FC levels increased the plant traits and played no significant role in mitigating the effects of drought stress.