Exogenous Application of Gibberellic Acid Improves the Maize Crop Productivity Under Scarce and Sufficient Soil Moisture Condition

Sarwar, Naeem; Rehman, Atique-ur; Farooq, Omer; Mubeen, Khuram; Wasaya, Allah; Nouman, Wasif; Ali, Madad; Shehzad, Muhammad

doi:10.1515/cerce-2017-0036

Cited by 9 publications

(7 citation statements)

References 10 publications

(4 reference statements)

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“…These results are in concordance with the by the findings of GA3 application improved the water deficit tolerance in maize and showed positive effects on the growth of leaves. The increased leaf area with GA3application was also reported by [20].…”

Section: Leaf Area Index Of Fodder Maize Varieties/hybrids At 30 Dayssupporting

confidence: 65%

Exogenous application of gibberellic acid and selenium to endorse quality and yield of fodder maize under rainfed conditions

Hassan¹,

Durrani²

2021

World J. Adv. Res. Rev.

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Good quality and economical availability of fodder could be a substitute for crop production in the farming system of dryland areas. In Pakistan, the increasing demands of fodder crops for animal feed require immediate attention to find viable options for fodder production. Additionally, climate change, land detritions, and imbalanced use of chemicals led to an agro-ecological imbalance which needs to focus on mitigation strategies and practices. Therefore, the experiment was conducted three different rainfed areas of Punjab with aims to increase fodder maize quality by application of Gibberellic acid (GA3) and Selenium (Se) to overcome the forage scarcity issue in rainfed areas. The highest fresh biomass and leaf area were recorded by the application of GA75+Se0.75 followed by GA50+Se0.50 at 60 DAS. Similarly, the data about the silage quality traits indicated that more total dry matter (TDM), TDN, Crude protein (CP), neutral detergent fiber (NDF), Crude fiber (CF), acid detergent fiber (ADF), ash contents (AC) were recorded in Afgoi compared to Sohni Dhart 623. Among the experimental locations, the highest TDM, TDN, NDF, ADF and AC were found for the crop planted at NARC followed by URF, Koont and the least values of these traits were recorded for GRS, Attock. Among the different combinations of growth regulators, the highest TDM, TDN, CF, CP and NDF were recorded for GA75+Se0.75 followed by GA50+Se0.50. The above findings conclude that exogenously application of GA75+Se0.75 plays a promising role in the improvement of fodder growth and quality parameters of silage in Afgoi verity at different water stress agro-ecological zones.

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Section: Leaf Area Index Of Fodder Maize Varieties/hybrids At 30 Dayssupporting

confidence: 65%

Exogenous application of gibberellic acid and selenium to endorse quality and yield of fodder maize under rainfed conditions

Hassan¹,

Durrani²

2021

World J. Adv. Res. Rev.

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“…2.5.2 Gibberellic acid (GA3). GA3 is among plants' most critical growth regulators which promotes their tolerance to drought stress under optimum concentration (Sarwar et al, 2017). The extraction of leaf samples was performed in methanol solvent (70% v/v) following Kelen, Demiralay, S ¸en, and Alsancak (2004) method.…”

Section: Morphological Analysismentioning

confidence: 99%

Desert endophytic fungi improve reproductive, morphological, biochemical, yield and fruit quality characteristics of tomato under drought stress

Halo¹,

Al-Yahyai

Al-Sadi

et al. 2023

AGJSR

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PurposeCrops are increasingly affected by drought; hence, the current study explored the potential role of three desert endophytic fungi, Aspergillus fumigatus, Aspergillus terreus and Talaromyces variabilis, in conferring drought tolerance in tomato plants.Design/methodology/approachPreserved endophytic fungi from a Rhazya stricta desert plant were adopted to obtain the required fungal treatment; tomatoes received fungal treatments directly in plastic trays and subsequently in pots. Drought was applied using 15% of PEG-6000 at two stages: flowering and fruiting. The following parameters were measured: pollen sterility, growth characteristics, morphological analysis and biochemical analysis, including proline, gibberellic acid (GA3) and chlorophyll measurements; thus, the data were analyzed statistically using SPSS software.FindingsAll applied endophytes significantly promoted pollen viability and tomato yield under stressed and nonstressed conditions. Interestingly, these endophytes significantly enhanced the number of trichomes under drought stress and promoted tomato fruit quality. The colonized tomato plants accumulated a high proline level under drought stress but lower than un-inoculated stressed plants. Also, a significant rise in growth characteristics was observed by A. fumigatus and A. terreus under normal conditions. Moreover, both raised GA3 levels under drought-stressed and nonstressed conditions. Also these two endophytes enhanced chlorophyll and carotenoid contents under drought stress. Fruit characteristics were enhanced by nonstressed T. variabilis and stressed A. fumigatus.Originality/valueThe present endophytic fungi provide impressive benefits to their host in normal and drought-stressed conditions. Consequently, they represent valuable sources as sustainable and environmentally friendly alternatives to mitigate drought stress.

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“…GAs are synthesized in cytoplasm, plastids and endoplasmic reticulum [ 53 ]. Application of GAs to improve low moisture stress tolerance was observed in maize [ 71 , 86 ] wheat [ 87 ] and sunflower [ 88 ]. The Arabidopsis methyl transferase gene 1 AtGAMT1 was overexpressed in tomato plants to create drought-resistant transgenic tomatoes [ 37 ].…”

Section: Drought-responsive Genes Are Regulated By Plant Hormonesmentioning

confidence: 99%

Molecular Aspects of MicroRNAs and Phytohormonal Signaling in Response to Drought Stress: A Review

Ahmad

Wang

Ijaz

et al. 2022

CIMB

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Phytohormones play an essential role in plant growth and development in response to environmental stresses. However, plant hormones require a complex signaling network combined with other signaling pathways to perform their proper functions. Thus, multiple phytohormonal signaling pathways are a prerequisite for understanding plant defense mechanism against stressful conditions. MicroRNAs (miRNAs) are master regulators of eukaryotic gene expression and are also influenced by a wide range of plant development events by suppressing their target genes. In recent decades, the mechanisms of phytohormone biosynthesis, signaling, pathways of miRNA biosynthesis and regulation were profoundly characterized. Recent findings have shown that miRNAs and plant hormones are integrated with the regulation of environmental stress. miRNAs target several components of phytohormone pathways, and plant hormones also regulate the expression of miRNAs or their target genes inversely. In this article, recent developments related to molecular linkages between miRNAs and phytohormones were reviewed, focusing on drought stress.

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Exogenous Application of Gibberellic Acid Improves the Maize Crop Productivity Under Scarce and Sufficient Soil Moisture Condition

Cited by 9 publications

References 10 publications

Exogenous application of gibberellic acid and selenium to endorse quality and yield of fodder maize under rainfed conditions

Exogenous application of gibberellic acid and selenium to endorse quality and yield of fodder maize under rainfed conditions

Desert endophytic fungi improve reproductive, morphological, biochemical, yield and fruit quality characteristics of tomato under drought stress

Molecular Aspects of MicroRNAs and Phytohormonal Signaling in Response to Drought Stress: A Review

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