Response of a new and a commonly grown forage sorghum cultivar to limited irrigation and planting density

Jahanzad, Emad; Jorat, M; Moghadam, H Akbari; Sadeghpour, Amir; Chaichi, M. R.; Dashtaki, M.

doi:10.1016/j.agwat.2012.11.001

Cited by 80 publications

(60 citation statements)

References 30 publications

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“…Similar types of findings was reported by Jahanzad et al (2013) and Asay et al (2002), these researchers reported that drought stress reduced dry matter yield and increased protein content in sorghum forage and tall fescue, respectively. However in their study the reduction amount of dry matter was very high and finally the protein yield reduced significantly when limited irrigation was imposed.…”

Section: Protein Yieldsupporting

confidence: 85%

“…Further, various researchers reported that impaired mitosis, cell elongation and expansion result reduced plant height, leaf area and crop growth under drought stress (Nonami, 1998;Kaya et al, 2006;Hussain et al, 2008). Now, in these days it is well established that reduced dry matter yield of forage is associated with drought stress (Marsalis et al, 2009;Marsalis & Bean, 2010;Rostamza et al, 2011;Jahanzad et al, 2013). Result of this study suggested that use of zeolite increased dry forage yield (P < 0.01) by 20% from 11202 kg.…”

Section: Forage Dry Mattermentioning

confidence: 54%

“…Silage corn have almost all these features, except the high protein content and this phenomenon make it better than other forage plants (Curran & Posch, 1999). Various researchers reported the scarcity of irrigation water may cause reduction in dry matter yield of forage crops (Vasilakoglou et al, 2011;Keshavarz & Farahbakhsh, 2012;Jahanzad et al, 2013). Knowledge about the influence of drought on nutritive quality of forage plants is inconsistent and limited.…”

Section: Introductionmentioning

confidence: 99%

“…Knowledge about the influence of drought on nutritive quality of forage plants is inconsistent and limited. Some studied like Jahanzad et al (2013) reported that drought condition may cause reduction in NDF and ADF concentration while it can improve the concentration of CP, DMD, WSC and DMD in forage sorghum cultivars. Similar type of findings was reported by Newman (2014) under drought stress conditions.…”

Section: Introductionmentioning

confidence: 99%

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Effect of different irrigation regimes and zeolite application on yield and quality of silage corn hybrids

Paknejad¹,

Seif²,

Azizi³

et al. 2017

JEBAS

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Present study was carried out to evaluate the effects of irrigation regimes and zeolite on the yield and quality parameters of silage corn hybrids. Study was conducted at Seed and Plant Improvement Institute in Karaj, Iran during 2013. The experiment was arranged in a three-replicated split-spilt plot based on randomized complete blocks design (RCBD) including three irrigation regimes as main plots (irrigation after 70, 100 and 130 mm evaporation from standard class A evaporation pan), two levels of zeolite as sub plots (0, 10 ton/ha) and three hybrids of silage corn (KSC704, KSC705 and KSC720) as sub subplot. Results of this study indicated that increasing water stress from optimum irrigation (Ir70) to moderate (Ir100) and low irrigation (Ir130) caused 25 and 37% reduction in forage dry matter yield but no significant difference was reported in protein yield. Moreover, application of zeolite have significant effect on forage yield and also have significant effect on protein yield (P<0.01). Forage quality parameters including water soluble carbohydrates, crude protein, acid detergent fiber and neutral detergent fiber increased and dry matter digestibility reduced when there was limited irrigation imposition. Among the tested corn seed hybrids KSC704 hybrid produced the highest dry forage yield and in terms of protein yield, no significant difference was reported between KSC720. KSC705 hybrid had the lowest acid detergent fiber and neutral detergent fiber and the highest dry matter digestibility.

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Section: Protein Yieldsupporting

confidence: 85%

Section: Forage Dry Mattermentioning

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of different irrigation regimes and zeolite application on yield and quality of silage corn hybrids

Paknejad¹,

Seif²,

Azizi³

et al. 2017

JEBAS

View full text Add to dashboard Cite

show abstract

“…Increasing water stress from optimum irrigation (I 100 ) to moderate (I 75 ) and severe limited irrigation (I 50 ), resulted in 20% and 34% reduction in forage dry matter yield. Jahanzad et al (2013) showed a stepwise reduction in total dry matter (TDM) and grain yield (GY) of sorghum in both treatments of with and without surfactant as the limited water severity increased. However, surfactant application at any irrigation level resulted in higher grain yield (GY) and total dry matter (TDM) compared to no-surfactant treatments (Chaichi et al, 2015).…”

Section: Total Forage Yieldmentioning

confidence: 99%

Surfactant and Limited Irrigation Effects on Forage and Seed Production and Water Use Efficiency in Alfalfa (Medicago Sativa L.)

Jafarian¹,

Chaichi²,

Moghaddam³

2015

JAS

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Alfalfa is one the most important forage resources in arid and semiarid regions of the world. To evaluate the response of alfalfa to limited irrigation and surfactant application, an experiment was conducted at Research Farm of College of Agriculture, University of Tehran, Iran, during 2013 and 2014 growing seasons. The experimental treatments were arranged as split plots based on a complete randomized block design with three replications. The limited irrigation treatments comprised of replenishment of 100%, 75% and 50% of weekly evaporation and plant water requirements assigned to the main plots. Water treatments of control (water alone) and water + surfactant, assigned to the subplots. The quantitative and physiological characteristics of alfalfa forage were recorded at 10% flowering stage. The seed yield of alfalfa was measured after the plants reached full physiological maturity stage. The result of the experiment showed that as the severity of limited irrigation increased, plant height, tiller number per plant, RWC, total forge yield and seed yield followed a decreasing trend. Across all the limited irrigation systems, surfactant application increased plant height, RWC, seed yield and total forge yield. As the severity of limited irrigation increased, water use efficiency (WUE) in forage yield followed a significant increasing trend. The highest forage (7500 kg/ha) and seed yield (820 kg/ha) under limited irrigation treatments were achieved at 75% weekly evaporation and plant water requirements + surfactant, while the highest irrigation water use efficiency for forage (1.5 kg/m 3 ) and seed (0.16 kg/m 3 ) production was observed in limited irrigation treatment of 50% weekly evaporation and plant water requirements + surfactant.

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Seeding and nitrogen fertilization effects on the yield and quality of brachytic dwarf brown midrib forage sorghum hybrids

Elango

Chopra

Roth

2020

Crop Forage & Turfgrass Mgmt

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Brown midrib (BMR) forage sorghum [Sorghum bicolor (L.) Moench] silage is an alternative to corn (Zea mays L.) silage for areas with limited soil moisture. Traditional forage varieties are tall and prone to lodging, with low forage quality. Brachtyic dwarf BMR lines are shorter and lodging‐resistant and have higher forage quality. Newer earlier‐maturing hybrids have expanded the potential adaptation of forage sorghums to northern latitudes. A 2‐yr study was conducted during the 2014 and 2015 growing seasons with brachytic dwarf BMR forage hybrids to determine the effects of different seeding and N fertilization rates on forage dry matter yield and quality. The experimental design was a split‐split‐plot with four replications. The main plots were two hybrids (‘AF7202’ and ‘AF7401’), the subplots were two seeding rates (80,000 and 120,000 seeds acre−1), and the sub‐subplots were two N rates (110 and 150 lb acre−1). Significant differences were observed between hybrids for all parameters except neutral detergent fiber digestibility (NDFD) in 2015. The early hybrid, AF7202, had higher yields and higher starch content and net energy for lactation levels than dwarf hybrid AF7401 and was more responsive to higher N. AF7401 had higher crude protein content and NDFD. Crude protein increased as N level increased for both hybrids but other forage quality traits were unaffected. Neither variety responded to an increased seeding rate. The earlier brachytic dwarf forage sorghums, such as AF7202, managed with recommended seeding rates and possibly higher N rates, have potential for high forage yield and quality in central Pennsylvania.

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Response of a new and a commonly grown forage sorghum cultivar to limited irrigation and planting density

Cited by 80 publications

References 30 publications

Effect of different irrigation regimes and zeolite application on yield and quality of silage corn hybrids

Effect of different irrigation regimes and zeolite application on yield and quality of silage corn hybrids

Surfactant and Limited Irrigation Effects on Forage and Seed Production and Water Use Efficiency in Alfalfa (Medicago Sativa L.)

Seeding and nitrogen fertilization effects on the yield and quality of brachytic dwarf brown midrib forage sorghum hybrids

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