The Influence of Flag Leaf Removal and Its Characteristics on Main Yield Components and Yield Quality Indices on Wheat

Racz, I.; Hirișcău, Diana; Berindean, Ioana Virginia; Kadar, Rozalia; Muntean, Edward; Tritean, Nicolae; Russu, Florin; Ona, Andreea; Muntean, Leon Sorin

doi:10.3390/agronomy12102545

Cited by 7 publications

(2 citation statements)

References 65 publications

(63 reference statements)

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“…Leaves, especially flag leaves, are vital sources of carbohydrates. These carbohydrates produced via gas exchange and photosynthesis processes can directly influence wheat grain filling and yield [ 48 ]. Despite the similar number of plant leaves under well-watered and water-deficit conditions, the plant leaf area, and particularly the flag leaf area, were markedly affected by water deficiency.…”

Section: Discussionmentioning

confidence: 99%

Aeluropus littoralis stress-associated protein promotes water deficit resilience in engineered durum wheat

Ben Romdhane,

Al-Ashkar,

Ibrahim

et al. 2024

Heliyon

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Section: Discussionmentioning

confidence: 99%

Aeluropus littoralis stress-associated protein promotes water deficit resilience in engineered durum wheat

Ben Romdhane,

Al-Ashkar,

Ibrahim

et al. 2024

Heliyon

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“…In his study Nehe et al (2019) analyzed the positive associations between growth parameters and grain production in wheat. Additionally, the study showed that tolerant genotypes had higher total dry matter at maturity and larger leaf areas (Racz et al, 2022).…”

Section: Morphological Traitsmentioning

confidence: 91%

The role of endophytes and rhizobacteria to combat drought stress in wheat

MUKHTIAR,

LIHONG,

MAHMOOD

et al. 2023

Not Bot Horti Agrobo

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Wheat production suffers greatly from drought stress, resulting in yield losses. Endophytes and rhizobacteria have been recognized as a valuable source in mitigating of drought stress by improving plant resistance and growth. In this review, we discuss how endophytes and rhizobacteria help wheat cope with drought stress. During drought stress, endophytes have been found to increase plant water usage efficiency and decrease water loss. Endophytes are harmless microorganisms that live inside plant tissues. Rhizobacteria establish colonies in the root system through various procedures, including phytohormones production, modification of root architecture, and activation of stress-inducible genes, thereby promoting plant growth and enhancing stress resistance. Numerous studies have shown how endophytes and rhizobacteria can improve the potential of wheat to withstand drought. For instance, inoculation with endophytes like Piriformospora indica and Bacillus spp. has been proven to enhance wheat plant yield and drought resistance. Similarly, it has been proven that rhizobacteria like Pseudomonas spp. and Azospirillum brasilense enhance drought tolerance through a variety of mechanisms. To minimize the consequence of wheat under drought conditions, the efficient method is the use of endophytes and rhizobacteria as biofertilizers, which could ultimately boost yields and sustainability. More research needs to be done so that it can be used most effectively in the field and so that we can better understand how they work. We explained current understanding of the role and mechanisms of endophytes and rhizobacteria in minimizing drought stress effects in wheat. Additionally, we highlighted areas of limited knowledge and suggested directions for future research. This review will provide the new suggestion on the role of endophytes and rhizobacteria in mitigating the drought stress in plants.

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Variation in the role of the flag‐leaf in reproductive effort of semiarid rangeland bunchgrasses

Hamerlynck,

Quigley,

O'Connor

2024

Ecosphere

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Understanding the mechanisms underlying viable seed production of perennial bunchgrasses is critical to improving restoration and conservation success in Great Basin sagebrush steppe rangelands. We studied the effects of pre‐ and post‐anthesis flag‐leaf removal and post‐anthesis seed‐head shading on reproductive effort in two important rangeland restoration species, the exotic crested wheatgrass (Agropyron cristatum) and native squirreltail (Elymus elymoides). Flag‐leaf removal had distinct, species‐specific effects on seed filling. Pre‐anthesis flag‐leaf removal in crested wheatgrass reduced the proportion of filled seeds, while post‐anthesis removal did not. In contrast, squirreltail increased filled seed proportions regardless of flag‐leaf removal timing. Neither flag‐leaf removal treatment affected seed quality, as quantified by seed‐specific mass (in grams per square meter), which significantly reduced with seed‐head shading in both species. Seed‐head shading reduced total propagule production (unfilled + filled seeds) in crested wheatgrass but increased it in squirreltail, possibly due to our shading method protecting from seed‐head herbivory or high‐light stress. Flag‐leaf removal in the squirreltail also induced a negative shading effect on filled seed area, mass, and specific mass. These findings suggest flag leaves can modulate reproductive effort outside of seed provisioning, either by maintaining pre‐fertilized seed viability, as in crested wheatgrass, or acting as a competitive sink to the fully emerged seed‐head, as in squirreltail. Moreover, this study demonstrates photosynthetic activity by the seed‐head itself is critical to the expression of seed quality traits important to seedling establishment success of semiarid perennial bunchgrasses.

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The Influence of Flag Leaf Removal and Its Characteristics on Main Yield Components and Yield Quality Indices on Wheat

Cited by 7 publications

References 65 publications

Aeluropus littoralis stress-associated protein promotes water deficit resilience in engineered durum wheat

Aeluropus littoralis stress-associated protein promotes water deficit resilience in engineered durum wheat

The role of endophytes and rhizobacteria to combat drought stress in wheat

Variation in the role of the flag‐leaf in reproductive effort of semiarid rangeland bunchgrasses

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