Statistical analysis of wheat yield under drought conditions

Leilah, A. A.; Sattar, Muhammad Naeem

doi:10.1016/j.jaridenv.2004.10.011

Cited by 196 publications

(152 citation statements)

References 13 publications

(19 reference statements)

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“…The traits such as plant height, spike length, days to heading, AS and test weight (hectoliter) had significant and positive correlation coefficients with grain yield in dryland condition, indicating its importance for selection with drought tolerance and higher yields. This finding is in agreement with the findings of Leilah and Al-Khateeb (2005). Dogan (2009) also indicated positive and significant correlations between grain yield and test weight.…”

Section: Discussionsupporting

confidence: 92%

“…Nonetheless, had highest direct effects on grain yield. Leilah and Al-Khateeb (2005) showed that biological yield and harvest index had high positive direct effects on grain yield per area and the highest indirect effects were observed with weight of grains per spike, number of spikes per m 2 and 100-grain weight. Taheri et al (2011) indicated a positive and significant correlation between stress tolerance index with grain yield, biomass and harvest index under normal conditions.…”

Section: Discussionmentioning

confidence: 97%

“…Some of researchers indicated that the positive correlation between grain yield and yield component traits in wheat such as harvest index (Ghaderi et al, 2009), biological yield (Ghaderi et al, 2009;Kandic et al, 2009), number of spike per square meter (Leilah and Al-Khateeb, 2005), plant height (Leilah and Al-Khateeb, 2005), grains per spike (Khan et al, 2010) and 1000 kernel weight (Leilah and Al-Khateeb, 2005).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Relationships between Grain Yield and Yield Components in Bread Wheat under Different Water Availability (Dryland and Supplemental Irrigation Conditions)

Mohammadi¹,

Sharifi

Karimizadeh³

et al. 2012

Not Bot Hort Agrobot Cluj

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Path and correlation analysis were executed to investigate the relationships between grain yield and other important yield components in bread wheat (Triticum aestivum L.) genotypes during two years (2009)(2010)(2011) under supplemental irrigation and dryland conditions. Field experiments were performed in a randomized complete block design with four replications. Grain yield showed positive correlation with plant height and test weight under supplemental irrigation condition. The similar results were also revealed between grain yield and plant height, spike length, days to maturity, agronomic score and test weight in dryland environment. The grain yield of bread wheat in dryland condition depended on the effect of plant height, days to maturity, agronomic score and 1000 kernel weight, whereas in supplemental irrigation was mainly related to plant height, spike length, 1000 kernel weight and test weight. The influence of 1000 kernel weight on grain yield in both environments seems to cause from the fact that grain yield in wheat is frequently the sink limited, and for this reason, the 1000 kernel weight has been reported as a promising trait for increasing grain yield in wheat under different conditions. The nearly equal value of correlation and path coefficients of plant height and grain yield showed plant height had positive and direct effect on grain yield, in both conditions and suggesting a criteria trait for improving of grain yield. The results showed that genotype 12 (CS/TH.SC//3*PVN/3/MIRLO/BUC/4/MILAN/5/ TILHI) is a high yielding potential genotype in moisture limited conditions.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Relationships between Grain Yield and Yield Components in Bread Wheat under Different Water Availability (Dryland and Supplemental Irrigation Conditions)

Mohammadi¹,

Sharifi

Karimizadeh³

et al. 2012

Not Bot Hort Agrobot Cluj

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“…The obtained result show that the foliar fungicide application had a positive effect on grain filling and thus on grain yield per spike. This result was in agreement with those reported by Leilah and Al-Khateeb and Zakizadeh et al [19,20]. Utique, Haidra and Tahent varieties did not show any significant differences between treatments.…”

Section: Effect Of Genetic Resistance and Fungicide Application On Yisupporting

confidence: 93%

Yellow Rust Effects on Grain Yield, and Yield Components of Some Spring Bread Wheat Cultivars under Rainfed Conditions

Sebei¹,

Ferjaoui²,

Bchini³

2018

WJAR

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Stripe rust caused by Puccinia striiformis, is currently the major foliar disease of spring bread wheat (Triticum aestivum L.) in Tunisia, causing serious yield losses and affecting grain quality. Farmers often use foliar fungicide application or resistant cultivars to counter yield loss, however, this is hampered by a lack of resistant varieties. To investigate the effects of genetic resistance and foliar fungicide application on disease level and yield components, six improved varieties were evaluated at the regional experimental station in Beja during three consecutive growing seasons. Under natural stripe rust infection, three varieties were detected as completely resistant and the others are susceptible. The pathogen affected the leaf area in the susceptible varieties and reduces the above ground biomass at harvest, seed weight and grain yield. Fungicide application reduces the disease severity on the sensitive genotypes and improves biomass, seed weight, grain yield, and harvest index. Yield benefits were much greater in the use of resistant genotypes than fungicide application on the susceptible varieties; consequently the resistance to stripe rust can have more significant benefits to farmer and to the wheat industry.

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“…The longer period of water withholding at ripening caused a 27.1-27.3% decrease in the grain number at normal CO 2 , but the higher CO 2 level was able to compensate for this. Leilah and Al-Khateeb (2005) found that the spike number, grain mass, harvest index and biomass quantity were the most important parameters for the analysis of drought effects, as these exhibited the closest correlation with changes in the available water reserves. In the present experiments, the longer period of drought at first node appearance had an outstanding effect on the grain mass.…”

Section: Discussionmentioning

confidence: 97%

Combined effect of the drought duration and elevated atmospheric CO2 level on physiological and yield parameters of winter wheat

Varga

Balla

Bencze

et al. 2010

Acta Agronomica Hungarica

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The unfavourable effects of climate change were studied in terms of changes in the stress tolerance of cereals. The yield and physiological parameters of two winter wheat genotypes (Mv Mambó, Mv Regiment) were analysed in the phytotron after water was completely withheld for 7 or 14 days in three phenophases. The plants were raised in climate chambers, one adjusted to ambient CO 2 concentration and the other to a higher level (750 μmol mol -1 ). The aim of the present work was to determine the correlations between the duration of water withholding and the phenological, physiological and yield parameters of winter wheat. It was hoped to identify how elevated CO 2 levels affected the stress sensitivity of plants and whether they contributed to counteracting the damaging effects of drought. In both varieties, the grain mass decreased to the greatest extent when water was withheld at first node appearance (5.9-71.3%). A longer period of drought at first node appearance and grain filling only reduced the grain number and mass in the case of enhanced CO 2 . The yield and physiological parameters of Mv Regiment, however, deteriorated substantially as a result of water deficiency, though this variety was better able to utilise surplus CO 2 , giving outstanding results at elevated CO 2 level.

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Statistical analysis of wheat yield under drought conditions

Cited by 196 publications

References 13 publications

Relationships between Grain Yield and Yield Components in Bread Wheat under Different Water Availability (Dryland and Supplemental Irrigation Conditions)

Relationships between Grain Yield and Yield Components in Bread Wheat under Different Water Availability (Dryland and Supplemental Irrigation Conditions)

Yellow Rust Effects on Grain Yield, and Yield Components of Some Spring Bread Wheat Cultivars under Rainfed Conditions

Combined effect of the drought duration and elevated atmospheric CO2 level on physiological and yield parameters of winter wheat

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