Effect of Different Planting Dates, Seed Rate and Nitrogen Levels on Wheat

Hameed, Ejaz; Shah, Wajid Ali; Shad, Anwar Ali; Bakht, Jehan; Muhammad, Tilah

doi:10.3923/ajps.2003.467.474

Cited by 44 publications

(26 citation statements)

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“…The negative impacts of late sowing were more pronounced in dual-purpose system and negatively affected forage and crude protein yields. These results agree with previous research findings where significantly higher plant height, yield attributes, and grain yield were reported under early sowing in the end of October than later sowing [45][46][47][48]. Negative impacts of late sowing on barley growth and grain yield and its components also were reported by Royo et al [49]; Singh et al [50]; Fayed et al [25]; Farooq et al [26], and Tahir et al [27], agreeing with present results.…”

Section: Discussionsupporting

confidence: 93%

Sowing Date and Genotype Influence on Yield and Quality of Dual-Purpose Barley in a Salt-Affected Arid Region

et al. 2021

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Dual-purpose barley is an alternative approach to producing high-quality forage yield plus an acceptable grain yield in marginal environments of arid regions that are characterized by lack of forage. Field experiment was performed in two consecutive growing seasons at an arid region affected by salinity in irrigation water and soil at Western Sinai Peninsula in Egypt. The study aimed to optimize sowing date and screen salt-tolerant barley genotypes that perform better in terms of forage yield and quality as well as grain and biomass yield production in salt-affected environment. Sowing dates, genotypes, and their interaction significantly impacted most of the studied variables such as forage yield, crude protein yield, and grain and biomass yields. The early sowing in late October yielded higher than intermediate sowing in mid-November and late sowing in early December. Some of the tested genotypes performed better than others as indicated by about 50% higher forage yield, 6% crude protein content, 39% grain and 21% biological yields (total aboveground dry matter), suggesting higher adaptation capacity. Interestingly, grain and biological yields did not differ significantly between dual-purpose approach and grain-only pattern. In conclusion, dual-purpose barley was found favorable for producing grain and forage production in similar environments under early sowing date.

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Section: Discussionsupporting

confidence: 93%

Sowing Date and Genotype Influence on Yield and Quality of Dual-Purpose Barley in a Salt-Affected Arid Region

et al. 2021

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“…The longest periods were observed at 1 November (166.50 and 165.93 days) in the two investigated seasons, respectively, while the lowest values at 15 th December (145.53 and 144.90 days) in the two studied seasons. Similar findings are in agreement with (Hameed et al, 2004). The early sown wheat has availed the longest period for completion of phonological stages and thus attained maximum values for GDD (Ahmed and Farooq, 2013).…”

Section: Chlorophyll Contentsupporting

confidence: 93%

Effect of Sowing Date on Growth, Accumulated Heat, Yield and Its Components of Some Bread Wheat Genotypes

Yahya

2020

Annals of Agricultural Science, Moshtohor

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Significant differences were detected among the studied sowing dates, where; the first sowing date gave the heaviest shoot dry weight and the highest leaf area index at 50, 65 and 80 days in the two studied seasons. The highest value of CGR at 50-65 days at the first sowing date in the first season, also CGR and NAR achieved the highest values at 65-80 days from sowing at 30 November in the second season and at 15 December in the first season. Number of days taken to emergence, tillering and jointing were gradually reduced with wheat planting from 15 December to 1 November, however, number of days to maturity was gradually increased. Moreover life cycle of wheat gradually decreased with delayed planting. Sowing date at 1 st of November achieved the highest values of GDD in tillering, jointing, booting, heading and maturity, while sowing date at 15 th December achieved lowest values of GDD in both studied seasons. The highest chlorophyll content, heat use efficiency, harvest index and heaviest biological and grain yield/ fed were obtained at sowing date 30 November in the two studied seasons. Tested wheat genotypes significantly difference, where Gemmieza 11 cultivar and Line 4 had the heaviest shoot dry weight and highest leaf area index at 50, 65 and 90 days in both seasons. Moreover, at 80-95 days Giza 171 gave the superiority for net assimilation rate in both seasons and for crop growth rate in the second season only, also at 50-65 days Line 3 and 65-80 days Line 4 gave the highest value of CGR in the first season. Moreover, maximum days and accumulated GDD detected for Giza 171 at jointing stage and Line 4 at maturity in the two seasons. Giza 171 gave the highest value for chlorophyll content and 1000-kernel weight in both seasons and HUE, plant height and harvest index in the first season, while biological yield in the second season. The highest number of tillers/m 2 was recorded in Sids 13 cultivar and spike length for Gemmieza 11 in both studied seasons. Also, Line 3 had the highest biological yield in the first season and Line 4 for HI in the second season. The interaction between sowing dates and genotypes had significant, where; in most cases, delayed sowing (15 December) had adverse effects on shoot dry weight, leaf area index, crop growth rate, net assimilation rate, phenological stages and growing degree days but the intensity varied among wheat genotypes. Sustaining the growth in late sown conditions of Shandaweel 1, Giza 171, Line 3 and Line 4 was clear indication of its adaptability measures to terminal heat stress. Planting of Giza 171, Gemmieza 11 and Line 4 on 15 or 30 November seemed the most productive combination. The finding of this investigation may help both physiologists and breeders in determining the sowing dates and genotypes could be selected for good growth and high yield.

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“…These results are in harmony with those obtained by The effects of cultivars and sowing dates on plant height were significant in both growing seasons and the interaction in second season was also significant due to the thermal time (Table 4). Similar results were also reported by Hameed et. al.…”

Section: -Plant Heightsupporting

confidence: 92%

Influence of Sowing Date on Yield and Its Components for Some Triticum Durum Cultivars Having Thermal Responses in Middle Egypt

El-Sawi

Moustafa

2014

Egyptian Journal of Agricultural Research

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The present investigation was carried out at Mallawy Agricultural Research Station, El-Minia Governorate, Egypt during the two successive seasons; 2010/ 2011 and 2011/2012. The objective of this investigation was to study the effect of sowing dates expressed in the accumulated temperature on yield and its components of three durum wheat genotypes (Triticum durum), i.e., Beni sweif-1, Beni sweif-4 and Beni sweif-5 in three sowing dates, namely; 21 st November, 10 th December and 30 th December during the two winter growing seasons. The studied characteristics included plant height, and number of spikes/m², number of kernels/spike, 1000-kernel weight, grain yield, straw yield and grain filling period. The results showed that all the sowing dates and cultivars reached to maturity at 140.2 days after sowing (DAS) (1652.2 °C days) in season 1 and at 152.4 DAS (2016.4 °C days) in season 2. Heading date and anthesis were significantly affected by cultivars and sowing dates in both growing seasons, also the interaction in the second season. Days to maturity were significantly affected by sowing dates in the two growing seasons and cultivars in the first season. Plant height was significantly affected by cultivars and sowing dates in both growing seasons; also significant interaction was observed between cultivars and sowing dates in the second season only. Number of spikes/m² was significantly affected by sowing dates in both growing seasons; also cultivars in the second season on spike/m 2. Number of kernels/spike and thousand kernel weight were significantly affected by cultivars, sowing dates and the interaction between cultivars and sowing dates in the second season only. Grain yield/plot was significantly affected by sowing dates in both growing seasons and cultivars in the second season. Straw yield was significantly affected by sowing dates in both growing seasons because the sowing dates (thermal time) was the main limiting factor to straw and grain yield in two growing seasons 2010/2011 and 2011/2012. Grain filling period was significantly affected by sowing date in both growing seasons and the interaction cultivar × sowing date was significant in the second season. The current study showed that the first sowing date was the optimum date for Beni sweif-1 in both growing seasons. These results are discussed in relation to future improvement of yield in respect to the variation of meteorological data in winter season with a spot light on thermal time.

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Effect of Different Planting Dates, Seed Rate and Nitrogen Levels on Wheat

Cited by 44 publications

References 1 publication

Sowing Date and Genotype Influence on Yield and Quality of Dual-Purpose Barley in a Salt-Affected Arid Region

Sowing Date and Genotype Influence on Yield and Quality of Dual-Purpose Barley in a Salt-Affected Arid Region

Effect of Sowing Date on Growth, Accumulated Heat, Yield and Its Components of Some Bread Wheat Genotypes

Influence of Sowing Date on Yield and Its Components for Some Triticum Durum Cultivars Having Thermal Responses in Middle Egypt

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