Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Responses to Drought and Flooding02:41

Responses to Drought and Flooding

Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
Responses to Salt Stress02:02

Responses to Salt Stress

Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
Plant Hormones01:56

Plant Hormones

Plant hormones—or phytohormones—are chemical molecules that modulate one or more physiological processes of a plant. In animals, hormones are often produced in specific glands and circulated via the circulatory system. However, plants lack hormone-producing glands.
Plant Hormones01:56

Plant Hormones

Plant hormones—or phytohormones—are chemical molecules that modulate one or more physiological processes of a plant. In animals, hormones are often produced in specific glands and circulated via the circulatory system. However, plants lack hormone-producing glands.
Responses to Heat and Cold Stress02:45

Responses to Heat and Cold Stress

Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
Regulation of Transpiration by Stomata02:04

Regulation of Transpiration by Stomata

During photosynthesis, plants acquire the necessary carbon dioxide and release the produced oxygen back into the atmosphere. Openings in the epidermis of plant leaves is the site of this exchange of gasses. A single opening is called a stoma—derived from the Greek word for “mouth.” Stomata open and close in response to a variety of environmental cues.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Single- and tri-doping strategies with Mn<sup>2+</sup>, Sn<sup>2+</sup>, and Pb<sup>2+</sup> in cadmium-based metal halides for primary-color and tunable white-light emission.

Dalton transactions (Cambridge, England : 2003)·2026
Same author

Identification and Quantification of Isoprene-Derived Organosulfates in Atmospheric PM<sub>2.5</sub> Based on Synthetic Chemicals.

Rapid communications in mass spectrometry : RCM·2026
Same author

Divergent sensory-metabolic fingerprints in Longjing peach tea beverage: Decoding quality evolution under HPP versus UHT sterilization.

Food research international (Ottawa, Ont.)·2026
Same author

Tunable optical low-pass filtering based on chirped grating in arrays of graphene.

PloS one·2026
Same author

Characterizing Particulate Organic Carbon Isotopes from Typical Emission Sources and Ambient Air in Beijing.

ACS environmental Au·2026
Same author

Molecular mechanism of gallium nitrate in inhibiting bacterial biofilm formation through pykF modulation.

PloS one·2026

Related Experiment Video

Updated: Jun 27, 2026

Production of Arbuscular Mycorrhizal (AM) Fungal Inoculum and Phenotypic Evaluation of Rice and AM Symbiosis Under Saline Conditions
07:43

Production of Arbuscular Mycorrhizal (AM) Fungal Inoculum and Phenotypic Evaluation of Rice and AM Symbiosis Under Saline Conditions

Published on: March 14, 2025

Split Potassium Fertilization Modulates Endogenous Hormone Homeostasis to Optimize the Grain-Filling Process and

Xinyue Zhang1, Junjie Dong1, Youfa Li1

  • 1Jiaxing Academy of Agricultural Sciences, Jiaxing 314016, China.

Plants (Basel, Switzerland)
|June 26, 2026
PubMed
Summary
This summary is machine-generated.

Split potassium (K) fertilization mitigates high temperature damage in rice, improving grain yield and quality by optimizing hormone levels and grain filling. Strategic K application enhances rice resilience to heat stress.

Keywords:
endogenous hormonesgrain fillinggrain qualityhigh temperaturerice (Oryza sativa L.)split potassium application

Related Experiment Videos

Last Updated: Jun 27, 2026

Production of Arbuscular Mycorrhizal (AM) Fungal Inoculum and Phenotypic Evaluation of Rice and AM Symbiosis Under Saline Conditions
07:43

Production of Arbuscular Mycorrhizal (AM) Fungal Inoculum and Phenotypic Evaluation of Rice and AM Symbiosis Under Saline Conditions

Published on: March 14, 2025

Area of Science:

  • Agricultural Science
  • Plant Physiology
  • Agronomy

Background:

  • High temperatures during rice flowering and grain filling reduce yield and quality.
  • Split potassium (K) fertilization is a potential strategy to mitigate heat stress.
  • Mechanisms linking K fertilization, hormonal balance, and rice grain performance under heat remain unclear.

Purpose of the Study:

  • To investigate the effects of split K application on rice yield, grain quality, and hormonal metabolism under high temperature stress.
  • To elucidate the physiological mechanisms by which split K fertilization improves rice grain filling and quality under heat.

Main Methods:

  • A two-year pot experiment was conducted using four treatments: ambient temperature with full basal K (AT-K100), high temperature with full basal K (HT-K100), and two split K regimes under high temperature (HT-K70+30, HT-K30+70).
  • Measurements included rice yield, grain quality parameters (e.g., chalkiness), and endogenous hormone levels (abscisic acid (ABA), indole-3-acetic acid (IAA), zeatin riboside (ZR), and gibberellin A3 (GA3)) at key developmental stages (5 and 20 days after anthesis).

Main Results:

  • Split K application significantly altered endogenous hormone levels, decreasing ABA and increasing IAA, ZR, and GA3 at 5 days after anthesis (DAA), and maintaining higher IAA and GA3 until 20 DAA.
  • These hormonal changes optimized grain filling, prolonged filling duration, and improved filling rates, leading to increased grain weight and reduced chalkiness.
  • The HT-K70+30 treatment increased yield by 8.75% compared to HT-K100, primarily due to improved seed-setting rate and 1000-grain weight. Higher panicle-stage K application showed a more pronounced reduction in grain chalkiness.

Conclusions:

  • Split K fertilization effectively mitigates high temperature-induced damage to rice yield and quality by modulating hormonal metabolism and optimizing grain filling.
  • The timing and proportion of K application are critical; higher basal K favors yield, while increased panicle-stage K topdressing enhances grain quality.
  • Strategic K management offers a viable approach to improve rice production resilience under projected global warming scenarios.