Evaluation of Drought Tolerance in Mid and Late Mature Corn Hybrids Using Stress Tolerance Indices

Shirinzadeh, A.; Zarghami, Reza; Azghandi, A`li Vatan Pur; Shiri, Mohammadreza; Mirabdulbaghi, M.

doi:10.3923/ajps.2010.67.73

Cited by 16 publications

(10 citation statements)

References 11 publications

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“…In this direction, three particular crosses, namely (B10 x B3), (C15 x C12) and (C16 x C12) exhibited an excellent performance under drought conditions with the mean grain yield per plant approaching closely that of the check S.C.10 that displayed relative susceptible to drought with DSI value being 1.43. Similar results obtained by Stanisław (2001); Shirinzdeh et al (2010) between maize hybrids. The intensity of drought was rather strong with grain yield per plant being reduced by 26% under drought.…”

Section: Drought Susceptibility Indexsupporting

confidence: 79%

GENETIC RELATIONSHIPS AMONG SOME MAIZE (Zea mays L.) GENOTYPES ON THE BASIS OF GENE ACTION AND RAPD MARKERS UNDER DROUGHT STRESS

Khaled

El-Sherbeny

Elsayed

2013

Egyptian Journal of Genetics and Cytology

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Section: Drought Susceptibility Indexsupporting

confidence: 79%

GENETIC RELATIONSHIPS AMONG SOME MAIZE (Zea mays L.) GENOTYPES ON THE BASIS OF GENE ACTION AND RAPD MARKERS UNDER DROUGHT STRESS

Khaled

El-Sherbeny

Elsayed

2013

Egyptian Journal of Genetics and Cytology

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“…The year effect in Ψ s was significant at RS. An optimum availability of N nutrients (Farooq et al, 2009) led to an increase in yield, even at a decreased water and turgor potential as reported by Shirinzadeh et al (2010). The applied N significantly affected Ψ p at RS in 2009 and the effect was linear (Table 2).…”

Section: Resultsmentioning

confidence: 72%

Water and Nitrogen Productivity of Maize under Semiarid Environments

et al. 2015

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Irrigated agriculture is a facing shortage of water and N in semiarid environments where these inputs are limiting factors for crop production. Experiments were conducted to optimize the water and N requirements for maize (Zea mays L.) under semiarid environmental conditions. Crop physiological and agronomics characteristics were evaluated for three irrigation regimes and five N fertilizer levels during 2009 and 2010. The experiments were conducted in a split‐plot design by triplicating water regimes in the main plots and N levels in the subplots. Total dry matter production and crop growth rate increased with an increase in the N application rate up to 300 kg ha−1 for all irrigation regimes. In contrast, maximum grain yield was achieved with application of 250 kg N ha−1. Polynomial analysis (third order) showed that 275 kg N ha−1 was optimum for grain yield at normal irrigation. Higher amounts of irrigation and N significantly increased water use efficiency (WUE). Since optimal N rates for maximum grain yield was 250 kg ha−1 with 525 mm irrigation water ha−1 during both growing seasons, this may be considered in formulating good agricultural practices for the soil and weather conditions resembling those of this study.

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“…Optimum availability of nutrients under stress condition leads to an increased concentration of some proteins such as proline and glycine betaine that act as an osmoticums and maintain the optimum water potential (Farooq, Wahid, Kobayashi, Fujita, & Basra, 2009). Furthermore, some of the reports suggest that N application results in increased crop yield even at low ψ w and ψ p (Shirinzadeh, Zargharni, Azghandi, Shiri, & Mirabdulbaghi, 2010).…”

Section: Water Relation In Plantmentioning

confidence: 99%

Offsetting land degradation through nitrogen and water management during maize cultivation under arid conditions

et al. 2018

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The best management of soil, irrigation, and crop nutrients is among major components of sustainable agriculture that reduces groundwater contamination, prevents soil degradation, and guarantees the best resource use efficiency. Trials were conducted to optimize maize (Zea mays L.) yield by experimenting various irrigation water regimes, nitrogen (N) application rates, and methods in 96 pots under arid environmental conditions during autumn 2012. Crop hydrological and agronomic characteristics were assessed under a completely randomized design with factorial arrangements. Water and N stress to the plants under observation significantly reduced the water potential, osmotic potential, and turgor pressure of the leaves. Crop growth rate and total dry matter production were significantly improved by an increase in N fertilizer application up to 300 kg ha−1 (equivalent to 4.8 g N pot−1) for all water regimes. Grain per cob, 1,000‐grain weight, and final grain yield were higher at 100% field capacity with the application of 300 kg N ha−1 under the soil N application method than those under foliar N application treatments. The best N rate for optimum grain production was attained by 300 kg ha−1 with 575‐mm supplemental irrigation water ha−1. The quadratic equation fitting revealed that the effect of N on crop growth parameters was higher than that of the supplemental irrigation; therefore, a water deficit may partly be managed by adding N to the soil. These water and N managements may be used in formulating agricultural practices to avoid degradation of lands for soil and environmental conditions similar to those of the current study warranting a field research.

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Evaluation of Drought Tolerance in Mid and Late Mature Corn Hybrids Using Stress Tolerance Indices

Cited by 16 publications

References 11 publications

GENETIC RELATIONSHIPS AMONG SOME MAIZE (Zea mays L.) GENOTYPES ON THE BASIS OF GENE ACTION AND RAPD MARKERS UNDER DROUGHT STRESS

GENETIC RELATIONSHIPS AMONG SOME MAIZE (Zea mays L.) GENOTYPES ON THE BASIS OF GENE ACTION AND RAPD MARKERS UNDER DROUGHT STRESS

Water and Nitrogen Productivity of Maize under Semiarid Environments

Offsetting land degradation through nitrogen and water management during maize cultivation under arid conditions

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