The effect of water deficit and sowing date on yield components and seed sugar contents of sweet corn (Zea mays L.)

Abstract

Considering the little amount of research on this crop in Iran and especially in Kermanshah, this paper was devoted to its study. In order to study the effect of sowing date and water stress on yield and yield components and seed sugar content in sweet corn cv.SC403, an experiment was conducted in the research farm and laboratories of the department of agronomy and plant breeding at Razi University, Kermanshah, in 2008. This investigation was performed as a factorial experiment based on randomized complete block design (RCBD) with four replications. The sowing date factor included four dates (4 May, 24 May, 13 June and 3 July) and three levels of water stress (control, moderate and severe water stress). The accumulated evaporation included: 70 (control), 120 (moderate water stress) and 170 (severe water stress) from evaporation pan class A. With respect to the results of this experiment, if the purpose in sowing of sweet corn is quantitative yield, the 3 rd of July under no water stress treatment (control) will be the best date (8547.2 kg ha-1). The sowing date of 3 rd July and the moderate water stress treatment did not have significant effect on quantitative yield. Thus, in arid and semi arid areas such as Kermanshah where water saving is important, this sowing date maybe very useful for water saving. But if the purpose is to have high qualitative yield in sweet corn (seed sugar), the sowing date of 4 May under severe water stress (1.48% sucrose) maybe the best choice.

Growth, Phenology, Yield and Nutrient Uptake of Sweet Corn as Influenced by Cultivars and Planting Times under Irrigated Subtropics of Shiwalik Foot Hills

“…A variation in cob characteristics was observed among the different cultivars of sweet corn (Table 3). Among the cob characteristics significant differences in respect of cob girth was observed among the cultivars and was might be regarded due to the genetic character of the variety (Konuskan (2000), Gozubenli et al, (2001 Oktem et al, (2004) and Farsiani et al, (2011) …”

Trabzon İline Ait Bazı Yerel Mısır Popülasyonlarının Agronomik Performansları

“…Bu karakter yönünden yerel popülasyonlar içerisinde Arsin, Akçaabat ve Hayrat ilk sıralarda yer almıştır (Çizelge 4). Koçandaki tane sırası sayısı başlıca genetik yapı tarafından belirlenir (Farsiani et al, 2011). Genotipler, farklı genetik yapıları nedeniyle koçanda tane sırası sayısı yönünden önemli derecede farklılık göstermişlerdir.…”

Türkiye’nin En Yüksek Ovasında Tatlı Mısır Çeşitlerinin Agronomik Performansı: Kalite Karakterleri

“…This result may be the genetic structure of the varieties, as well as the environmental conditions and cultivation techniques of the research site. Indeed, the ear length is significantly influenced by sowing date (Turgut and Balci, 2002), insufficient moisture conditions (Farsiani et al, 2011;Ertek and Kara, 2013) and high plant density is decreased, whereas it increased in a high nitrogen dose (Turgut, 2000).…”

“…However, a numerous researches on the subject; it was noted that there was a significant difference between the varieties of sweet corn in terms of ear diameter (Oktem and Oktem, 2006;Sonmez et al, 2013). According to researches done on sweet corn, the effect of sowing date (Oktem et al 2004), irrigation (Farsiani et al, 2011;Ertek and Kara, 2013), and plant geometry and nitrogen dose (Turgut, 2000) was determined significantly. Thus, according to the varieties the ear diameter was varied significantly in Izmir conditions 41.0-43.0 mm (Esiyok and Bozokalfa, 2005), in Şanlıurfa conditions 37.9-47.6 mm (Oktem and Oktem, 2006), in Eskisehir conditions 48.0-54.1 mm (Sonmez et al, 2013), in the USA conditions the values was between 44.7-50.0 mm (Maynard and Bluhm, 2017) which are close to our findings.…”

“…In fact, it was determined that SSC was significantly varied according to the locations (Esiyok et al, 2004) and decreased with high nitrogen doses (Sakin and Azapoglu, 2017). The sugar content of sweet corn in late sowing dates and high plant density (Burcu and Akgun, 2018), in low and high nitrogen doses (Okumura et al, 2014), with the delay of the harvest dates (Szymanek et al, 2015) decreased, and increased in water stress conditions (Farsiani et al, 2011).…”