Isabella Vaughn evaluates grape and muscadine seedlings during early-stage selection, discarding individuals that lack desirable traits using highly accurate DNA markers that identify flower sex and seedlessness before plants reach maturity. Photo by Lacy Nelson, University of Arkansas System Division of Agriculture.

New KASP markers for seedlessness and flower sex show >99% accuracy across Vitis, Muscadinia, and their hybrids - streamlining early selection and accelerating grape breeding.
#JASHS https://doi.org/10.21273/JASHS05580-25
#plantscience

Six representative lettuce plants after 26 d under each of four far-red (FR) radiation (FR = 700–750 nm) substitution treatments with a total photon flux density (400–800 nm) of 400 µmol·m−2·s−1 and a CO2 concentration of 800 µmol·mol−1.

Far-red (FR) substitution for red (R) can significantly increase early-stage lettuce biomass accumulation under a moderate total photon flux density (TPFD), with some outcomes influenced by the CO2 concentration. #JASHS https://doi.org/10.21273/JASHS05550-25

For both trials, each perovskite sample (A) was placed on the gas exchange analyzer window, and (B) the light-emitting diode (LED) lights had to be lowered via a pulley system to achieve light intensities above 1200 µmol·m−2·s−1.

New research in #JASHS explores the intersection of energy and agriculture 🌱⚡️ #ferrarezilab evaluated the photosynthetic response of crops under perovskite-based solar cells. The results offer promising insights for the future of greenhouse
https://doi.org/10.21273/JASHS05528-25
#plantscience

Endogenous contents of proline (A) and glycine betaine (B) in citrus leaves sprayed with proline solutions at 0, 8, 16, 32, 64, and 128 mM, under two temperature conditions: 25 °C and freezing stress (FZS) (−6 °C). Mean values for temperature treatments followed by an inverted triangle (▼) and for proline concentrations followed by different lowercase letters indicate significant differences according to the F test (P ≤ 0.05) and Tukey’s test, respectively.

Research shows that foliar-applied proline boosts freezing tolerance in citrus by enhancing osmoprotection, antioxidant defense & metabolic resilience. High doses (64-128 mM) preserved photosynthesis & reduced stress damage.

#JASHS https://doi.org/10.21273/JASHS05536-25
#plantscience

Comparison of flowers and fruits between Cas9-OE MicroTom with SlPDS editing and unedited with Cas9-OE MicroTom that was not inoculated with Agrobacterium as the control.

Traditional methods for improving tomatoes are often slow. A faster technique using modified plant viruses with the CRISPR toolkit temporarily alters genes responsible for traits such as disease resistance and fruit quality. #JASHS https://doi.org/10.21273/JASHS05544-25
#plantscience

Research on Multi-scale and Multi-directional Negative Pressure Suction–type Separation of Fresh Tea Leaves Based on CFD and Bench Tests

New study provides theoretical support and engineering references for the research and development of multiscale air suction sorting equipment for fresh tea leaves.
#JASHS https://doi.org/10.21273/JASHS05552-25
#plantscience

‘US-Early Pride’ (A), ‘Sugar Belle’ LB8-9 (B), and ‘Tango’ (C) IPC and no-IPC trees during Winter 2022 after 3 years of field growth. IPC = individual protective cover.

IPCs work to maintain higher chlorophyll content, increase leaf area, and suppress HLB. While IPCs initially led to improved tree growth, the overall tree response varied depending on the duration of coverage and the scion cultivar and/or rootstock.
#JASHS https://doi.org/10.21273/JASHS05519-25

Phytotoxicity effect of dibutyl dithiophosphate (DBDTP) foliar applications on radish.

Radish seed treatments followed by drench applications have a potential positive effect. A dibutyl dithiophosphate hydrogen sulfide donor seed treatment could be beneficial for improving the growth of radishes under field conditions.
#JASHS https://doi.org/10.21273/JASHS05524-25
#plantscience

‘US-Early Pride’ (A), ‘Sugar Belle’ LB8-9 (B), and ‘Tango’ (C) IPC and no-IPC trees during Winter 2022 after 3 years of field growth. IPC = individual protective cover.

While Individual Protective Covers use for citrus protection against HLB initially led to improved tree growth, the overall tree response varied depending on the duration of coverage and the scion cultivar and/or rootstock.
#JASHS https://doi.org/10.21273/JASHS05519-25

A heap of fresh green cucumbers showcasing their vibrant color and natural texture.

New research provides a comprehensive annotation of cucumber lncRNAs using RNA-Seq data and offers insights into their potential regulatory functions in cold stress responses.

#JASHS https://doi.org/10.21273/JASHS05517-25
#plantscience

Sour jujube trees and fruit.

With its foot-long decorative branchlets and high flavonoid content in seeds, sour jujube TX2 has the potential to be used as an edible landscape plant and for nutraceutical or pharmacological uses.
#JASHS https://doi.org/10.21273/JASHS05525-25
#plantscience

Heatmap of the correlation coefficients between five Asparagaceae species. Darker colors denote stronger positive correlations; lighter shades indicate weaker correlations. CE = catechin equivalent; GAE = gallic acid equivalent; QE = quercetin equivalent.

Scientists found significant variability in the phytochemical content and genetic relationships among five Asparagaceae plant species. Furcraea watsoniana and Yucca filamentosa stand out for their high levels of bioactive substances.
#JASHS https://doi.org/10.21273/JASHS05532-25
#plantscience

Representative photo of the experiment setup (taken in May 2022, 21-month-old cacao trees).

Cacao yields low? New study found trees are severely under-fertilized! Optimal N far exceeds current practices. Higher N is key to robust growth & high yields. #Cacao #Agriculture #Fertilization #CropNutrition #JASHS https://doi.org/10.21273/JASHS05518-25
Volcani Institute

Tetraploid hemp (Cannabis sativa) plant of genotype XXXY. (A) Whole plant. (B-D) Male flowering nodes. Scale bar = 80 cm.

Tetraploidy can create industrial hemp populations with female bias of 5:1.

Read more in #JASHS doi.org/10.21273/JAS...
#plantscience

Close-up view of colorful bell peppers

Researchers found that the key factor affecting sweet pepper fruit size is air temperature during anthesis; high air temperature during this period leads to small fruit size.
#JASHS #plantscience
doi.org/10.21273/JAS...

hawthorn fruit with green to purple peel

Purple hawthorn fruit are a rare trait with considerable market and ornamental value. Accumulation of anthocyanins, with a decrease in carotenoid and chlorophyll contents, contributed to the change in fruit color from green to purple.
#JASHS doi.org/10.21273/JAS...
#plantscience

Close-up view of green onions sprouting from dark, rich soil, showcasing agriculture and plant growth.

Epicuticular waxes on onion foliage are important for interactions with insects, diseases, and the environment. A study of the heritability of a specific wax profile provides key information for the future development of thrips-resistant cultivars. #JASHS doi.org/10.21273/JAS...
#plantscience

Strawberries

Calcium sprays reduce susceptibility to water soaking, a common disorder of field-grown strawberries. Researchers are working to quantify Ca uptake through the strawberry fruit skin.

#JASHS doi.org/10.21273/JAS...
#plantscience

Pecan leaf and fruit

Scientists constructed the high-density genetic maps of two pecan cultivars. The results of their work can be used in marker-assisted selection for scab resistance in pecan-breeding programs.
#JASHS doi.org/10.21273/JAS...
#plantscience
#treenut

Tomato plants

Scientists studied a novel synthetic photorespiratory pathway demonstrated to reduce photorespiratory metabolic energy demands and increase plant vegetative biomass in model species to find out if it could boost tomato crop yield.

#JASHS doi.org/10.21273/JAS...
#plantscience

A hand holding freshly harvested organic carrots with soil in a garden setting.

A newly published study explores the role of genetic and environmental influences on carrot performance. The results will inform breeding strategies for improving carrot performance for #organic systems.

#JASHS doi.org/10.21273/JAS...
#plantscience

Clockwise from top left: leafy green on day of transplant; plant state post-harvest event; flasks in the process of an anthocyanin extraction; plant state pre-harvest event

Researchers are working to determine the optimal indicator of harvest readiness for peak phytonutrient production and the effect of consecutive harvests on phytonutrient concentrations and biomass yield with applications for future space missions.

#JASHS doi.org/10.21273/JAS...
#plantscience

Petunia plants

An investigation of the expression characteristics, subcellular localization, functional analysis, and downstream regulatory genes of PhSLB1 provides new genetic resources for improving petunia.

#JASHS doi.org/10.21273/JAS...
#plantscience

Progression of plant regeneration of strawberry Sweet Sensation® 'Florida 127".

Newly published results provide effective tissue culture and transformation methods for strawberry functional genomics research and gene editing guided cultivar improvement.

#JASHS doi.org/10.21273/JAS...
#plantscience
#horticulture

Red leaf lettuce

End-of-production cooling improved or increased foliar coloration, carotenoid, and anthocyanin concentration of red leaf lettuce. In addition, B-vitamin concentration generally increased while vitamin C decreased.
#JASHS doi.org/10.21273/JAS...
#plantscience

Statistics of differentially expressed genes (DEGS).

To reveal the molecular mechanism of salt stress, scientists conducted transcriptome sequencing on samples of pomegranate roots subjected to salt stress at different time periods and control conditions.

#JASHS doi.org/10.21273/JAS...
#plantscience

Paired images of lettuce accessions from five morphological types

Lettuce breeding lines adapted to the subtropics with longer shelf-life, less bolting, no tipburn, acceptable marketability, and head weight are identified.
#JASHS doi.org/10.21273/JAS...
#plantscience #horticulture

Top - phenotypes of sugary-enhancer sweet corn kernels differing at the se1 locus. Both ears are from the same homozygous sel sul inbred. Bottom overview of carotenoid and tocochromanol biosynthesis pathways in maize.

New study is informative for plant breeders working with high-carotenoid or high-vitamin E sweet corn. In the case of carotenoids and tocochromanols, biofortification efforts should be focused on sh2 and su1 endosperm types rather than se1 types.

doi.org/10.21273/JAS...
#plantscience #JASHS

'Aztec Fuji" apple orchard with a 60-degree Tatura trellis (V) system

Tree spacing and branch architecture are critical for the productivity of high-density orchards. Training branches based on the shortened branch configuration can increase the fruit weight and fresh and dry weights of leaf and leaf Ca.
doi.org/10.21273/JAS...
#JASHS #horticulture

Loquat fruit amid green leaves

New research reveals the change patterns of the main functional components of loquat leaves during growth and provides a scientific basis for the harvesting period of loquat leaves for use as raw materials in food processing.

#JASHS doi.org/10.21273/JAS...
#plantscience #medicinalplant