Effect of Waterlogging on Element Concentrations, Growth and Yield of Wheat Varieties Under Farmer’s Sodic Field Conditions

AbstractPlant bioregulators (PBRs) represent low-cost chemicals for boosting plant defense, especially under stress conditions. In the present study, redox based PBRs such as thiourea (TU; a non-physiological thiol-based ROS scavenger) and hydrogen peroxide (H2O2; a prevalent biological ROS) were assessed for their ability to mitigate NaCl stress in rice variety IR 64. Despite their contrasting redox chemistry, TU or H2O2 supplementation under NaCl [NaCl + TU (NT) or NaCl + H2O2 (NH)] generated a reducing redox environment in planta, which improved the plant growth compared with those of NaCl alone treatment. This was concomitant with better K+ retention and upregulated expression of NaCl defense related genes including HAK21, LEA1, TSPO and EN20 in both NT and NH treated seedlings. Under field conditions, foliar applications of TU and H2O2, at vegetative growth, pre-flowering and grain filling stages, increased growth and yield attributes under both control and NaCl stress conditions. Principal component analysis revealed glutathione reductase dependent reduced ROS accumulation in source (flag leaves) and sucrose synthase mediated sucrose catabolism in sink (developing inflorescence), as the key variables associated with NT and NH mediated effects, respectively. In addition, photosystem-II efficiency, K+ retention and source-sink relationship were also improved in TU and H2O2 treated plants. Taken together, our study highlights that reducing redox environment acts as a central regulator of plant’s tolerance responses to salt stress. In addition, TU and H2O2 are proposed as potential redox-based PBRs for boosting rice productivity under the realistic field conditions.

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Effect of flooding on growth and yield of mungbean genotypes

Bangladesh Journal of Agricultural Research ◽

10.3329/bjar.v41i1.27680 ◽

2016 ◽

Vol 41 (1) ◽

pp. 151-162 ◽

Cited By ~ 1

Author(s):

MR Amin ◽

MA Karim ◽

MR Islam ◽

S Aktar ◽

MA Hossain

Keyword(s):

Field Experiment ◽

Seed Size ◽

Seed Yield ◽

Field Conditions ◽

Growth And Yield ◽

Yield Reduction ◽

Plant Seed ◽

Days To Flowering ◽

Soil Flooding ◽

Standing Water

The field experiment was carried out with some selected mungbean genotypes viz. IPSA-13, VC-6173A, BU mug 2, BARI Mung-5 and IPSA-12 to observe the effect of 4-days flooding on their growth and yield of mungbean under field conditions at Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh during September to November, 2011 maintaining 3-5 cm standing water at 24 days after emergence. Days to flowering and maturity delayed in flooded plants over control depending on the genotypes. Flooding significantly reduced Total Day Matters (TDM), number of pods per plant, seed size and seed yield of the mungbean genotypes over control. Considering higher seed yield, larger seed size and less yield reduction relative to control VC-6173A, BU mug 2 and IPSA-13 were found tolerant to soil flooding condition.Bangladesh J. Agril. Res. 41(1): 151-162, March 2016

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Comparison of the Growth and Yield of Paddy-and Upland-Rice grown under Paddy-and Upland -Field Conditions

Japanese Journal of Crop Science ◽

10.1626/jcs.27.354 ◽

1959 ◽

Vol 27 (3) ◽

pp. 354-356 ◽

Cited By ~ 1

Author(s):

Shin'ichi HASEGAWA ◽

Kanenori NAKAYAMA

Keyword(s):

Upland Rice ◽

Field Conditions ◽

Growth And Yield ◽

Upland Field

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Seed Coating with Arbuscular Mycorrhizal Fungi for Improved Field Production of Chickpea

Agronomy ◽

10.3390/agronomy9080471 ◽

2019 ◽

Vol 9 (8) ◽

pp. 471 ◽

Cited By ~ 4

Author(s):

Inês Rocha ◽

Isabel Duarte ◽

Ying Ma ◽

Pablo Souza-Alonso ◽

Aleš Látr ◽

...

Keyword(s):

Arbuscular Mycorrhizal ◽

Field Conditions ◽

Growth And Yield ◽

Seed Coating ◽

Agricultural Practice ◽

Agricultural Crops ◽

Field Inoculation ◽

Inoculation Methods ◽

Fungal Isolates ◽

The Impact

Although arbuscular mycorrhizal (AM) fungi are known to promote growth and yield of agricultural crops, inoculation methods for effective scaling up from greenhouse to the field are still underexplored. The application of single or mixed beneficial AM fungal isolates is hindered by the lack of experimental reproducibility of findings at different scales and the cost-effectivity of inoculation methods. Seed coating has been considered a feasible delivery system of AM fungal inocula for agricultural crops. In this study, the impact of single and multiple AM fungal isolates applied via seed coating on chickpea productivity was evaluated under greenhouse and field conditions. Overall, plants inoculated with multiple AM fungal isolates had better performance than those inoculated with single AM isolate under greenhouse and field conditions. While plants in greenhouse displayed higher shoot dry weight (14%) and seed individual weight (21%), in field, inoculation with multiple AM isolates increased pod (160%), and seed (148%) numbers, and grain yield (140%). Under field conditions, mycorrhizal root colonization was significantly higher in chickpea plants inoculated with multiple AM fungal isolates compared to other treatments. These findings highlight the potential of field-inoculation with multiple AM fungal isolates via seed coating as a sustainable agricultural practice for chickpea production.

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Phaseolus acutifolius ASSOCIATED WITH Bacillus amyloliquefaciens AND Azospirillum halopraeferens UNDER SALINITY CONDITIONS

Biotecnia ◽

10.18633/biotecnia.v21i1.875 ◽

2019 ◽

Vol 21 (1) ◽

pp. 127-132

Author(s):

R. Prabhaharan ◽

J. Borboa-Flores ◽

E. C. Rosas-Burgos ◽

J. L. Cárdenas-López ◽

J. Ortega-García ◽

...

Keyword(s):

Bacillus Amyloliquefaciens ◽

Field Conditions ◽

Growth And Yield ◽

Yield Enhancement ◽

Arid Zones ◽

Potential Yield ◽

Phaseolus Acutifolius ◽

Plant Parts ◽

Mexican State ◽

Plant Growth Promoting

Salinity-tolerant plants offer hope for the future of agriculture by providing solutions to the problems caused by years. Sonora is the most arid Mexican state. The agroindustrial halophytes are an option in dry-arid zones agriculture. In the present study, we evaluated the growth and development under different salinity and field conditions, of two beans (Phaseolus acutifolius) genotypes: Indio Yumi, and Navojoa. Seeds were inoculated with plant growth promoting halobacteria, a previously selected and cultivated strain of Azospirillum halopraeferens and a native Bacillus amyloliquefaciens. Significant differences were observed among them for weight and biomass, as well as biochemical features between the analyzed plant parts. Our findings suggest that a potential yield enhancement and protein production under field conditions can be promoted by the application of the beneficial bacterium B. amyloliquefaciens and A. halopraeferens. Also, demonstrated the ability of the studied beneficial halobacteria to promote growth and yield of the halotolerant Phaseolus acutifolius, a potentially useful finding for the agricultural growers in dry and semiarid zones.

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