Improvement of Sorghum Crop through Exogenous Application of Natural Growth-Promoting Substances under a Changing Climate

Ahmad, Wahid; Noor, Mehmood Ali; Afzal, Irfan; Bakhtavar, Muhammad Amir; Nawaz, Muhammad Mohsin; Sun, Xuefang; Zhou, Baoyuan; Ma, Wenqi; Zhao, Ming

doi:10.3390/su8121330

Cited by 43 publications

(25 citation statements)

References 35 publications

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“…Because all the treatments were applied as foliar spray, low concentrations were selected based on previous studies (Ahmad et al 2016;Amin et al 2013;Bakhtavar et al 2015;Kamran et al 2016;Kaya et al 2013). The sorghum plants were harvested at maturity, dried, chaffed with a fodder cutter into 2-cm pieces, and stored under shade.…”

Section: Preparation Of Pgrs For Foliar Spraysmentioning

confidence: 99%

Exogenous application of plant growth regulators (PGRs) induces chilling tolerance in short-duration hybrid maize

Waqas

Khan

Akhter

et al. 2017

Environ Sci Pollut Res

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Chilling stress hampers the optimal performance of maize under field conditions precipitously by inducing oxidative stress. To confer the damaging effects of chilling stress, the present study aimed to investigate the effects of some natural and synthetic plant growth regulators, i.e., salicylic acid (SA), thiourea (TU), sorghum water extract (SWE), and moringa leaf extract (MLE) on chilling stress tolerance in autumn maize hybrid. Foliar application of growth regulators at low concentrations was carried out at six leaf (V6) and tasseling stages. An increase in crop growth rate (CGR), leaf area index (LAI), leaf area duration (LAD), plant height (PH), grain yield (GY), and total dry matter accumulation (TDM) was observed in exogenously applied plants as compared to control. In addition, improved physio-biochemical, phenological, and grain nutritional quality attributes were noticed in foliar-treated maize plots as compared to non-treated ones. SA-treated plants reduced 20% electrolyte leakage in cell membrane against control. MLE and SA were proved best in improving total phenolic, relative water (19-23%), and chlorophyll contents among other applications. A similar trend was found for photosynthetic and transpiration rates, whereas MLE and SWE were found better in improving CGR, LAI, LAD, TDM, PH, GY, grains per cob, 1000 grain weight, and biological yield among all treatments including control. TU and MLE have significantly reduced the duration in phenological events of crop at the reproductive stage. MLE, TU, and SA also improved the grain protein, oil, and starch contents as compared to control. Enhanced crop water productivity was also observed in MLE-treated plants. Economic analysis suggested that MLE and SA applications were more economical in inducing chilling stress tolerance under field conditions. Although eliciting behavior of all growth regulators improved morpho-physiological attributes against suboptimal temperature stress conditions, MLE and SA acted as leading agents which proved to be better stress alleviators by improving plant physio-biochemical attributes and maize growth.

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Section: Preparation Of Pgrs For Foliar Spraysmentioning

confidence: 99%

Exogenous application of plant growth regulators (PGRs) induces chilling tolerance in short-duration hybrid maize

Waqas

Khan

Akhter

et al. 2017

Environ Sci Pollut Res

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“…For osmopriming, wheat seed was soaked in an aerated solution of KCl for 24 h, and the seed to solution ratio was 1:5 (w/v). After soaking, seeds were dried in the shade until their original weight was attained (Ahmad et al, 2016). The volume of spray (320 L ha -1 ) was calibrated using water prior to treatment application.…”

Section: Treatmentsmentioning

confidence: 99%

“…Priming can give a boost to the crop by early establishment (Bakhtavar et al, 2015;Ahmad et al, 2016). This warrants the need to optimize the herbicide dose for effective weed control in wheat sown by different methods.…”

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confidence: 99%

Seed Pre-Treatment and Planting Geometry Positively Influence Herbicide Efficacy in Wheat (Triticum aestivum)

et al. 2018

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Planta Daninha 2018; v36:e018170372 ULLAH, A. et al. Seed pre-treatment and planting geometry positively influence herbicide efficacy in wheat (Triticum aestivum) 1 151103-PD-2016 (9 páginas) PROVA GRÁFICA ABSTRACT -An experiment was conducted to evaluate the effect of priming, planting patterns and weed control treatments on weed spectrum, grain yield and profitability of wheat, during the growing season 2013-14. Two levels of seed priming (no priming, osmopriming) and planting patterns (broadcast, row plantation), and four levels of herbicide (pyroxulam at the rate of 14.08, 10.56, 7.04 and 7.521 g a.i. ha -1 ) were employed in the experiment, laid out in a randomized complete block design with split-split plot arrangement. The data regarding weed density, stand establishment, growth, and yield associated traits of wheat were recorded and analyzed by analysis of variance technique using statistical software DSAASTAT. The results revealed that the final emergence count was improved significantly by line sowing. The seed priming treatments resulted in early crop emergence and canopy spread, and it also decreased weed density and dry weight by 13% and 18%, respectively at 60 DAS (days after sowing). Moreover, grain yield was improved by 8% in priming treatment plots. Whereas, line sowing of wheat treatment decreased the weed density and dry weight by 17% and 25% respectively, with improved grain yield by 14% over the broadcast method. Pyroxulam at the rate of 14.08 g a.i. ha -1 applied at 60 DAS reduced total weed density and dry weight by 88% and 96% respectively and grain yield was improved by 36% over weedy check plots. In conclusion, osmoprimed seeds (1% KCl) sown in lines 22.5 cm apart gave higher wheat yields where weeds were properly controlled through application of pyroxulam applied at its recommended dose (14.08 g a.i. ha ) and also 75% of recommended dose under Faisalabad conditions. Keywords: seed priming, planting geometry, herbicides, weed spectrum. 14,08, 10,56, 7,04 e 7,521 RESUMO -Um experimento foi conduzido para avaliar os efeitos resultantes do sistema de pré-germinação, priming, padrões de plantio e tratamentos de controle de ervas daninhas sobre o espectro da erva daninha, rendimento de grãos e rentabilidade do trigo, durante o período de desenvolvimento da planta de 2013-14. As sementes foram preparadas de duas formas: sem a utilização do sistema de priming, e sob condicionamento osmótico, osmopriming. Os padrões de plantio foram semeadura a lance (broadcast) e em linha (row plantation) e quarto dosagens de herbicidas foram aplicadas (pyroxulam nas dosagens

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“…Moreover, Afzal et al (2015) suggested that 3% moringa leaf juice applied as a foliar spray at critical growth stages (tillering and booting stages) has the potential to increase the grain yield of late-sown wheat. Recently Ahmad et al (2016) stated that 3% moringa leaf extract (MLE) significantly enhanced the yield through improvement of crop growth. The improvement in growth and yield of crop at foliar application of MLE might be due to the presence of growth promoting substances as well as nutrient elements in moringa as suggested by many reseachers (Siddhuraju and Becker, 2003;Anwar et al, 2007;Jacob and Shenbagaraman 2011;Abdalla 2013).…”

Section: Effect Of Moringa Leaf Extract On Yield Of Bari Gom-26mentioning

confidence: 99%

Effect of foliar application of moringa leaf extract on growth and yield of late sown wheat

Jhilik

Hoque

Moslehuddin

et al. 2017

Asian J. Med. Biol. Res

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Abstract:Moringa oleifera leaf extract has a potential effect as a growth enhancer of many crops. An experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultural University, Mymensingh, Bangladesh to evaluate the effect of foliar application of moringa leaf extract on growth and yield of late sown wheat (BARI Gom-26). The experiment was laid out in a randomized complete block design with six treatments and three replications. The treatments were T 1 (Control), T 2 [moringa leaf extract (MLE) sprayed only at tillering stage], T 3 (MLE sprayed at tillering and jointing stages), T 4 (MLE sprayed at tillering, jointing and booting stages), T 5 (MLE sprayed at tillering, jointing, booting and heading stages), and T 6 (MLE sprayed only at heading stage). Application of moringa leaf extract significantly increased the growth and yield attributes as well as grain and straw yield of wheat. Among various treatments with moringa leaf extract the performance of T 4 (MLE sprayed at tillering, jointing and booting stages) was the best as it produced the tallest plant (87.87 cm), the highest fresh and dry weight of root (16.51 g and 11.37 g respectively), the highest number of spikelets spike -1 (19.70) and filled grains spike -1 (45.53), as well as the highest grain and straw yield (3.62 t ha -1 and 5.43 t ha -1 respectively) of wheat. Therefore, moringa leaf extract as a foliar spray can be applied at critical growth stages to increase the growth and yield potentiality of late sown wheat.

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Improvement of Sorghum Crop through Exogenous Application of Natural Growth-Promoting Substances under a Changing Climate

Cited by 43 publications

References 35 publications

Exogenous application of plant growth regulators (PGRs) induces chilling tolerance in short-duration hybrid maize

Exogenous application of plant growth regulators (PGRs) induces chilling tolerance in short-duration hybrid maize

Seed Pre-Treatment and Planting Geometry Positively Influence Herbicide Efficacy in Wheat (Triticum aestivum)

Effect of foliar application of moringa leaf extract on growth and yield of late sown wheat

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