Benefits from Intercropped Forage Sorghum–Red Clover Under Drought Stress Conditions

Pourali, Sanaz; Aghayari, Fayaz; Ardakani, Mohammad Reza; Paknejad, Farzad; Golzardi, Farid

doi:10.1007/s10343-023-00833-4

Cited by 8 publications

(7 citation statements)

References 41 publications

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“…Previous studies have consistently shown that increasing the L:S of forage sorghum and sorghum-sudangrass leads to a reduction in fiber content and an increase in CPC, DMD, RFV, and energy content of the forage [1,48,49]. These improvements in forage quality under drought stress have been attributed to the superior nutritional value of leaves compared to stems, as demonstrated by earlier research [10,13,50]. Bhattarai et al [32] found that drought stress increases the CPC and DMD but decreases the ADF and NDF of sorghum forage.…”

Section: Forage Qualitymentioning

confidence: 57%

“…The observed positive correlation between increased fiber content and plant height growth may be attributed to the plant's efforts to reduce lodging, which ultimately decreases forage digestibility [13,51]. Sorghum exhibits an adaptive response to water scarcity, prioritizing leaf growth over stem growth as leaves require fewer resources and are less affected by water stress [10,21,52]. Under drought stress, sorghum increases its leaf-tostem ratio, which indicates the plant's allocation of resources toward leaf growth for the maintenance of photosynthesis [1,10].…”

Section: Forage Qualitymentioning

confidence: 99%

“…Sorghum exhibits an adaptive response to water scarcity, prioritizing leaf growth over stem growth as leaves require fewer resources and are less affected by water stress [10,21,52]. Under drought stress, sorghum increases its leaf-tostem ratio, which indicates the plant's allocation of resources toward leaf growth for the maintenance of photosynthesis [1,10]. This prioritization of photosynthesis over structural support is essential for the plant's survival under water-limited conditions, emphasizing the intricate interplay between physiological and morphological adaptations of sorghum to cope with environmental challenges [2,9].…”

Section: Forage Qualitymentioning

confidence: 99%

“…Various strategies have been developed to mitigate the adverse effects of limited irrigation on crops, including the cultivation of drought-tolerant species and cultivars [4,5], optimized irrigation scheduling [6,7], and the use of suitable and water-saving irrigation methods [2,8,9]. For instance, growing drought-tolerant crops such as sorghum can improve water-use efficiency and reduce the impact of water stress on yield [1,10]. The high yield and drought tolerance of sorghum make it a crucial crop for providing livestock feed and human food in arid and semi-arid regions [11].…”

Section: Introductionmentioning

confidence: 99%

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Irrigation Management Strategies to Enhance Forage Yield, Feed Value, and Water-Use Efficiency of Sorghum Cultivars

Ghalkhani

Golzardi

Khazaei

et al. 2023

Plants

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Water scarcity is a major obstacle to forage crop production in arid and semi-arid regions. In order to improve food security in these areas, it is imperative to employ suitable irrigation management techniques and identify drought-tolerant cultivars. A 2-year field experiment (2019–2020) was conducted in a semi-arid region of Iran to assess the impact of different irrigation methods and water deficit stress on forage sorghum cultivars’ yield, quality, and irrigation water-use efficiency (IWUE). The experiment involved two irrigation methods, i.e., drip (DRIP) and furrow (FURW), and three irrigation regimes supplied 100% (I100), 75% (I75), and 50% (I50) of the soil moisture deficit. In addition, two forage sorghum cultivars (hybrid Speedfeed and open-pollinated cultivar Pegah) were evaluated. This study revealed that the highest dry matter yield (27.24 Mg ha−1) was obtained under I100 × DRIP, whereas the maximum relative feed value (98.63%) was achieved under I50 × FURW. Using DRIP resulted in higher forage yield and IWUE compared to FURW, and the superiority of DRIP over FURW increased with the severity of the water deficit. The principal component analysis indicated that, as drought stress severity increased across all irrigation methods and cultivars, forage yield decreased, while quality increased. Plant height and leaf-to-stem ratio were found to be suitable indicators for comparing forage yield and quality, respectively, and they showed a negative correlation between the quality and quantity of forage. DRIP improved forage quality under I100 and I75, while FURW exhibited a better feed value under the I50 regime. Altogether, in order to achieve the best possible forage yield and quality while minimizing water usage, it is recommended to grow the Pegah cultivar and compensate for 75% of soil moisture deficiency using drip irrigation.

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Section: Forage Qualitymentioning

confidence: 57%

Section: Forage Qualitymentioning

confidence: 99%

Section: Forage Qualitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Irrigation Management Strategies to Enhance Forage Yield, Feed Value, and Water-Use Efficiency of Sorghum Cultivars

Ghalkhani

Golzardi

Khazaei

et al. 2023

Plants

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“…According to Eskandari et al [2009], legumes contain less cellulose and hemicellulose than cereals. Thus, according to a study conducted by Pourali et al [2023] on growing sorghum with clover, increasing the proportion of sorghum in the mixture crop increased the ADF and NDF content of the resulting forage. According to Bakhtiyari et al [2020], a high content of ADF and NDF decreases forage digestibility.…”

Section: Introductionmentioning

confidence: 99%

The proportion of components in field pea and spring triticale mixtures and harvest stage affect crude fiber content and forage digestibility

Górski,

Płaza

2024

Agron. Sci.

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The work presents results of a study conducted in 2016–2018 to determine the effect of component share in the mixture and harvest stage on concentration of crude fibre and its fractions as well as digestibility of field pea/spring triticale mixtures. The following two factors were examined in a field experiment: factor I – component share in a mixture: field pea in pure stand 100%, spring triticale in pure stand 100%, field pea 75% + spring triticale 25%, field pea 50% + spring triticale 50%, field pea 25% + spring triticale 75%; factor II – harvest stage: field pea flowering stage (BBCH 65), field pea flat green pod stage (BBCH 79). The concentration of crude fibre and its fractions (NDF, ADF, ADL) were determined in the dry matter in addition to dry matter digestibility and organic matter digestibility. The lowest content of crude fiber and its fractions, among the mixtures, was revealed in the mixture with the share of components of pea and spring triticale 75% + 25% and 50% + 50%, respectively. Harvesting mixtures at a later stage caused an increase in crude fiber content and its fraction in dry matter. The superior dry matter digestibility and organic matter digestibility were found for field pea and field pea/spring triticale mixtures containing 75% + 25% and 50% + 50% of the respective components and harvested at the stage of field pea flowering.

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Arbuscular Mycorrhizal Fungi Under Intercrop, Regenerative, and Conventional Agriculture Systems

Robdrup,

Hubbard,

Gorim

et al. 2024

Arbuscular Mycorrhizal Fungi and Higher Plants

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Arbuscular mycorrhizal fungi (AMF) increase in diversity and abundance in agricultural systems that emphasize soil health practices, including regenerative agriculture and intercropping. Regenerative agriculture in principle includes any practice that increases biodiversity and living roots and integrates livestock while reducing tillage, bare soil, and agrichemical inputs. Intercropping increases biodiversity in an annual system and reduces disease prevalence and weeds while improving soil conditions and yielding more than the equivalent monocrop. These principles and practices simultaneously support AMF proliferation in soils and in turn AMF provide multiple benefits to crops. AMF colonize roots, trading photosynthates for nutrients acquired beyond the reach of the plant root system. While colonizing roots, they trigger innate plant immunity and confer resistance to some insect, fungal, and bacterial pests. Colonized plants hold more water and thus are more resistant to drought. In soils with ample AMF propagules, multiple plants are likely to become connected to their neighbors by a common mycorrhizal network (CMN). Plants connected by a CMN are likely to share beneficial microbes, resistance to disease, and resources. A better understanding of crop root traits and AMF is important to building a wholistic picture of ecological interactions that can be leveraged to maintain agricultural production in intercropped, regenerative, and conventional systems.

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Benefits from Intercropped Forage Sorghum–Red Clover Under Drought Stress Conditions

Cited by 8 publications

References 41 publications

Irrigation Management Strategies to Enhance Forage Yield, Feed Value, and Water-Use Efficiency of Sorghum Cultivars

Irrigation Management Strategies to Enhance Forage Yield, Feed Value, and Water-Use Efficiency of Sorghum Cultivars

The proportion of components in field pea and spring triticale mixtures and harvest stage affect crude fiber content and forage digestibility

Arbuscular Mycorrhizal Fungi Under Intercrop, Regenerative, and Conventional Agriculture Systems

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