Association among Yield and Grain’s Physical Attributes in Spring Wheat Genotypes

Ahmed, Hafiz Ghulam Muhu-Din; Ullah, Aziz; Bhutta, Muhammad Asim; Yasmeen, Ammara; Rehman, Hafeez Ur; Farooq, Umar

doi:10.17582/journal.sja/2022/38.5.173.180

Cited by 1 publication

(1 citation statement)

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“…Significant positive relationships can also be observed between dry biomass weight and grain yield of all 3 organic amendments treatments (NPK: r = 0.937, P = 0.019; NPK+M: r = 0.971, P = 0.006; NPK+GM+SR: r = 0.88, P = 0.049). Positive correlation between aboveground dry matter production and grain yield was also reported similarly in other studies (WAJID et al, 2007;ULLAH et al, 2011) (Figure 3). Based on the results of the two-way ANOVA, N treatment had a significant effect (P = 0.001) on LAI, but the Tukey HSD test with α 0.05 did not show significant differences (P = 0.078-0.939) between control and organic amendments treatments (Figure 4).…”

Section: Relationships Between Vegetative Indicators and Yieldsupporting

confidence: 88%

Effects of organic amendments on yield determining properties and macronutrient content of maize

Tóth,

Tóth

2024

Agrokem

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The use of organic fertilization is declining in Hungary due to the sharp fall of livestock stand since the middle of the 1980s. Most farmers are forced to use solely chemical crop enhancers. A bifactorial small plot experiment was carried out between 10 May 2023 and 19 October 2023 in Keszthely, in order to examine the effects of farmyard manure (M), green manure (GM) and stem residues (SR) on the nutrient uptake and nitrogen utilization efficiencies of maize at equidistantly increasing (0–70–140–210–280 kg N ha–1) nitrogen doses. The relationship between some vegetative traits (dry biomass weight, Leaf Area Index (LAI)) and yield, furthermore leaf relative water content (RWC) was also examined. According to the results, organic fertilizer substitution significantly increased the N content both in whole plant and grain samples of NPK+M and NPK+GM+SR treatments, compared to the chemically fertilized control (NPK). In case of P and K only slight differences were observed. Whole plant K contents of NPK+M were significantly higher than in the other treatments (P = 0.045; P = 0,005), furthermore P contents in grain samples were significantly higher in NPK+M (P = 0.004) and NPK+GM+SR (P = 0.05) than in control. Harvest index (HI [%]) of NPK+M and NPK+GM+SR were 1.06 and 1.05 times higher than in NPK. Depending on the treatment, P0023 maize hybrid absorbed 58.7–74.64% of total N uptake in the grain (HIN%), and the utilization of 1 kg N fertilizer for the extra yield above the yield of the individual control was 0.39–1.38 kg (AREN). Significant positive correlations were observed between dry biomass weight and yield (NPK: r = 0.937, P = 0.019; NPK+M: r = 0.971, P = 0.006; NPK+GM+SR: r = 0.88, P = 0.049), furthermore LAI and yield (NPK: r = 0.9, P = 0.037; NPK+M: r = 0.983, P = 0.003; NPK+GM+SR: r = 0.784, P = 0.117). Highest RWC values – which may be related to better soil aggregate stability – were measured in NPK+GM+SR treatment, therefore there may be a great potential in this treatment among drought conditions. The effect of organic amendments is particularly noticeable with smaller nitrogen doses so they should be used to reduce inorganic fertilizer application and the resulting environmental risks.

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Section: Relationships Between Vegetative Indicators and Yieldsupporting

confidence: 88%