Effect of Seed Rate on Yield Components and Grain Yield of Ridge Sown Wheat Varieties

Abstract

W heat (Triticum aestivum L.) is the major staple food cereal crop in most of the countries and cultivated in wide range of environments. Its yield is greatly influenced by crop management factors. Among several crop management factors sowing method, seeding rate and selection of appropriate genotype have prime role in affecting wheat productivity (Chauhdary et al., 2016;Isidro-Sánchez et al., 2017). Appropriate sowing method not only aids in establishment of proper crop stand but also improves the conversion of light energy by balancing inter-plant competition thereby improving the crop yield (Ali et al., 2012;Ehsanullah et al., 2017;Rasool et al., 2017). Hence such cultivation system and/or sowing method should be adopted which could improve the soil properties such as moisture, temperature and root penetration in order to improve the plant growth and productivity (Krause et al., 2009). Ridge sowing of wheat improves the crop yield and water saving by improving the plant tillering capacity, soil moisture content and nutrient availability (Hussain et al., 2018). However, ridge sowing often Abstract | Wheat productivity could be improved by ridge sowing with optimized seed rate for different varieties. This 3-years study was conducted to determine the optimum seed rate for different varieties of ridge sown wheat for better yield and related components. Wheat varieties (Faisalabad-08, Punjab-11 and Galaxy-13) were sown on ridges using two different seed rates (125 and 150 kg ha -1 ). Increase in seed rate improved the emergence (plants per m 2 ), number of productive tillers per m 2 and grain yield (3-7%) of all wheat varieties although productive tillers per plant, number of grains per spike and 1000-grain weight was decreased. Faislabad-08 performed better regarding grain yield and related components among all varieties. Seed rate and varieties did not interact significantly for studied traits. Correlation analysis revealed that grain yield was positively correlated with number of productive tillers per m 2 during all years and grain weight during first year; while, negatively correlated with number of grains per spike during second year indicating that increase in grain yield was associated mainly with increase in number of productive tillers per unit area in response to seed rate. In conclusion, increase in seed rate improved the grain yield of ridge sown wheat by enhancing the number of productive tillers per unit area and could be exploited to improve the wheat productivity.

Effect of Different Seed Rates and Row Spacing on Yield Attributes and Yield of Late Sown Wheat (Triticum aestivum L.)

“…W ider row spacing (18 cm) produced the significantly higher number of tillers (68) and spikes (12.10) per metre row length over narrow row spacing (12 cm) and the higher grain yield (49.13) recorded at 18 cm row spacing which was statistically at par as 15 cm row spacing. These results are supported with Iqbal et al (2020). The grain yield and harvest index was registered with spacing 15 cm as 48.93q/ha and 40.53 per cent, respectively.…”

Sustainable management practices for durum wheat production: Analyzing specific agronomic interventions on productivity, grain micronutrient content, and quality

“…Increases the seeding rate resulted in a linear increase in grain yield, with a significant rise of 23.5% ( Table 4 ). This increase in grain yield was attributed to a higher number of productive tillers per meter square [ 29 ]. These findings suggest that adjusting the seeding rate based on the specific cultivation conditions could play a crucial role in addressing food insecurity, particularly in developing nations.…”

Grain Yield and Yield Related Traits of Bread Wheat as Influenced by N and Seeding Rates and Their Interaction Effects in 2020 under Irrigation at Western and North of Oromia, Ethiopia

“…Te current result is in agreement with Adinew [28] and Amare [8] who found that maximum productive tiller was recorded from minimum seed rate and vice versa under rain-fed conditions. On the other hand, Iqbal et al [65] reported that maximum productive tillers were obtained at 200 kg ha −1 seed rates than at lower seeding rates under rain-fed conditions.…”