Influence of nitrogen application on dry biomass allocation and translocation in two maize varieties under short pre-anthesis and prolonged bracketing flowering periods of drought

Molla, Md. Samim Hossain; Nakasathien, Sutkhet; Ali, ME; Khan, A. A.; Alam, M. R.; Hossain, Akbar; Farooq, Muhammad; Sabagh, Ayman El

doi:10.1080/03650340.2018.1538557

Cited by 24 publications

(19 citation statements)

References 43 publications

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“…In root development, Envoy, DZ19-1 and Wafia genotypes showed better results in stress conditions compared to other genotypes when examined in length and age. The decreasing trends of the shoot and root dry weight with increasing drought stress was reported previously by Chachar et al (2014) and Molla et al, (2019). Our results are line with the results of Jatoi et al (2014), who concluded that the root dry weight of wheat genotypes was reduced gradually with the increasing PEG concentrations.…”

Section: Root Dry Weightsupporting

confidence: 93%

GERMINATION, SEEDLING GROWTH AND PHYSIO-BIOCHEMICAL INDICES OF BREAD WHEAT (Triticum aestivum L.) GENOTYPES UNDER PEG INDUCED DROUGHT STRESS

Iyem¹,

Yıldırım²,

Kızılgeçi³

2021

AgricultForest

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The establishment of seedlings at early growth stages of plants is one of the important determinants for higher yield potential under stress conditions. Therefore, high germination rate and vigorous seedling growth under water stress conditions is preferred to increase productivity. Considering this issue, an experiment was conducted to know the response of drought stress on the germination and seedling growth traits of available wheat cultivars. The study was carried out at the Laboratory of Horticulture in Agriculture Faculty, Cukurova University, Turkey. Seeds of five bread wheat genotypes viz. Wafia, Lucilla, Envoy, DZ19-2 and DZ19-1 were placed and grown in Petri-dishes under polyethylene glycol (PEG 6000) induced drought stresses of 0 (control=distilled water), -0.2, -0.4 and -0.6 MPa conditions for evaluation the properties of germination and seedling growth. Regarding the root length and dry weight, the genotypes Wafia, Lucilla and DZ19-1were found superior and seemed to be relatively tolerant to drought stress over other genotypes. Regarding biochemical analysis, the proline content increased with increasing drought levels, where the maximum proline was observed in the DZ19-1 genotype. Due to drought stress, the shoot proline content increased in drought-tolerant wheat genotypes whereas the proline level decreased in the sensitive ones compared to the control. Considering the study, the genotype DZ19-1 can be treated as drought tolerant genotype, and further investigations are needed, however, to support our understanding of the drought stress effects during the whole life cycle of wheat.

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Section: Root Dry Weightsupporting

confidence: 93%

GERMINATION, SEEDLING GROWTH AND PHYSIO-BIOCHEMICAL INDICES OF BREAD WHEAT (Triticum aestivum L.) GENOTYPES UNDER PEG INDUCED DROUGHT STRESS

Iyem¹,

Yıldırım²,

Kızılgeçi³

2021

AgricultForest

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“…However, recent climate changes, especially abiotic stresses including drought, are imposing a pronounced fluctuation in maize production, increasing the risk of food insecurity [5][6][7]. Moisture deficiency has emerged as one of the most serious threats in arid and semi-arid climates by causing up to 40% yield reduction in maize [8][9][10]. Drought stress (DS) adversely affects root proliferation [11], crop morphology and physiology, hence reducing crop yield [12].…”

Section: Introductionmentioning

confidence: 99%

Foliar Potassium Sulfate Application Improved Photosynthetic Characteristics, Water Relations and Seedling Growth of Drought-Stressed Maize

et al. 2021

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Changing climates and frequent spells of drought have increased the risk of crop failure, especially in arid and semi-arid regions, thus multiplying the vulnerability of food-insecure populations. The exogenous application of potassium (K) can potentially ameliorate the adverse effects of drought in maize by maintaining cell osmotic potential and turgidity, provided its optimum doses are applied. The present experiment comprised two maize cultivars, viz. Islamabad Gold (drought tolerant) and Azam (drought susceptible), grown under well-watered (80% water-holding capacity (WHC)), mild drought (60% WHC) and severe drought (40% WHC) conditions. Different doses of K, viz. 0%, 1% and 2%, were also tested to screen out the most superior concentration. Drought stress markedly reduced root and shoot lengths (25% and 16%, respectively) along with their dry weights (20% and 10%, respectively). Moreover, a substantial reduction in leaf relative water content (RWC) (24%), stomatal conductance, transpiration and photosynthesis rates, chlorophyll pigments a, b and total chlorophyll contents (31%) were recorded, compared with well-watered conditions. However, foliar application of K2SO4 at 2% concentration outperformed other doses by improving growth attributes, RWC (10%), total chlorophyll (9%) and proline (12%) under severe drought conditions. Our findings confirmed the effectiveness of foliage-applied K2SO4 in ameliorating drought effects in rainfed maize; however, more doses and sources of K could be tested for developing it as a potent source to cope with water stress.

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“…Under drought stress, nitrogen metabolism, enzyme activities and protein synthesis can be impaired (Saneoka et al, 2004). However, plants have many mechanisms to adjust abiotic stress by changing the morpho-physiological characters (Todaka et al, 2012;Molla et al, 2019;Yassin et al, 2019). Neseim et al (2014) found that under drought stress, morphological characters such as root yield and white sugar/fedden (0.42 ha) were significantly reduced, whereas, total soluble phenols and free amino acid concentrations in leaves and roots were significantly increased that ultimately led to surviving under stress condition.…”

Section: Introductionmentioning

confidence: 99%

Yield and quality of two sugar beet (Beta vulgaris L. ssp. vulgaris var. altissima Döll) cultivars are influenced by foliar application of salicylic acid, irrigation timing, and planting density

Abdelaal

Rashed

Hossain

et al. 2020

AAS

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<p class="yiv0945129372msonormal">Two field experiments were conducted to evaluate the time of foliar application of 100 ppm salicylic acid (SA), two irrigation (IR) timings, three levels of spacing (SP) hill-1 with different plant density on growth, yield and quality characters of two sugar beet cultivars (‘Samba’ and ‘Farida’). The results revealed that the foliar application of 100 ppm SA at 30 days after planting (DAP) and 14 days after the first application significantly influenced top fresh mass and root biomass of sugar beet plants. Conversely, the increasing period between planting and first irrigation scheduling led to significant differences in fresh mass, sugar yield, and sucrose % as well as purity % of sugar beet. Plants density with 60 × 20 cm spacing hill-1 was found to be better than the other two spacings for major characters, particularly root fresh mass, and Total soluble solids and purity %. Inversely, spacing at 60 × 15 cm, between hills gave the maximum levels of top fresh mass, root yield and sugar yield in the first season. The interaction effect between spacing hill-1 at 60 × 20 cm and 100 ppm SA applied at 30 DAP gave the maximum levels of increment for most of the studied characters, particularly for cultivar ‘Farida’.<strong></strong></p>

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Influence of nitrogen application on dry biomass allocation and translocation in two maize varieties under short pre-anthesis and prolonged bracketing flowering periods of drought

Cited by 24 publications

References 43 publications

GERMINATION, SEEDLING GROWTH AND PHYSIO-BIOCHEMICAL INDICES OF BREAD WHEAT (Triticum aestivum L.) GENOTYPES UNDER PEG INDUCED DROUGHT STRESS

GERMINATION, SEEDLING GROWTH AND PHYSIO-BIOCHEMICAL INDICES OF BREAD WHEAT (Triticum aestivum L.) GENOTYPES UNDER PEG INDUCED DROUGHT STRESS

Foliar Potassium Sulfate Application Improved Photosynthetic Characteristics, Water Relations and Seedling Growth of Drought-Stressed Maize

Yield and quality of two sugar beet (Beta vulgaris L. ssp. vulgaris var. altissima Döll) cultivars are influenced by foliar application of salicylic acid, irrigation timing, and planting density

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