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Agronomy
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Innovative Natural Products in Agriculture for Enhancing Plant Tolerance and...
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Innovative Natural Products in Agriculture for Enhancing Plant Tolerance and Crop Yield

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Plant-Crop Biology and Biochemistry".

Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 2007

Special Issue Editor

Dr. Guanglong Zhu

E-Mail Website
Guest Editor
Joint International Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
Interests: crop production; agronomy; crop physiology; stress physiology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Climate change and human activity are progressively increasing the frequency of abiotic stresses, such as drought, salinity, heat, cold, flooding, nutrient deficiencies, heavy metal stress, and ultraviolet radiation, etc., which are becoming the major constraints for plant growth and crop production. The ever-increasing population and decreasing fertile soil resources generate a constant threat to food security. Therefore, it is essential to use new strategies to enhance plant growth and improve crop yield under stress for sustainable agricultural development. Some natural products are widely used to alleviate abiotic stress in crop production and improve crop yield, for example, the application of exogenous hormones and bioactive substances. A deeper understanding of how crops respond and natural products that can enhance plants’ tolerance to abiotic stresses and the underlying stress tolerance mechanisms is of crucial importance, which will certainly accelerate the breeding of stress-tolerant crops and the corresponding cultivation management. This Special Issue focuses on the effects of innovative natural products on plant growth and crop yield and quality under abiotic stress.

This Special Issue on “Innovative Natural Products in Agriculture for Enhancing Plant Tolerance and Crop Yield” will include studies on the innovative natural products that enhance plant tolerance to abiotic stress (not limited to the stress factors of drought, salinity, heat, cold, flooding, nutrient deficiencies, heavy metal stress, and ultraviolet radiation) and enhance plant growth, crop yield and quality, and the mechanisms of tolerance at the morphological, physiological, biochemical, and molecule levels. In this Special Issue, original research manuscripts, short communications, and reviews are welcome. Manuscripts submitted to Agronomy must not have been previously published or be under consideration for publication in another journal.

Dr. Guanglong Zhu
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Agronomy is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • natural products
  • abiotic stress
  • plant growth
  • crop yield
  • grain quality
  • physiological mechanism
  • stress tolerance
  • management strategy

Published Papers (1 paper)

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Research

18 pages, 36533 KiB  
Article
Source–Sink Balance Optimization Depends on Soil Nitrogen Condition So as to Increase Rice Yield and N Use Efficiency
by Xiaoxiao Li, Yongjin Zhou, Peng Shuai, Xinyu Wang, Shaobing Peng and Fei Wang
Agronomy 2023, 13(3), 907; https://doi.org/10.3390/agronomy13030907 - 18 Mar 2023
Cited by 3 | Viewed by 1746
Abstract
Genetic improvement has been devoted to increasing rice yield by increasing the spikelet number per panicle and the spikelet/leaf ratio. As a result, indica-japonica hybrid rice “Yongyou” varieties with large panicles and superhigh yield potential have been developed. These varieties exhibit significantly higher [...] Read more.
Genetic improvement has been devoted to increasing rice yield by increasing the spikelet number per panicle and the spikelet/leaf ratio. As a result, indica-japonica hybrid rice “Yongyou” varieties with large panicles and superhigh yield potential have been developed. These varieties exhibit significantly higher grain yield and nitrogen use efficiency for grain (NUEg) under moderate and high N supply conditions due to their large sink size, but their yield performance remains obscure under low N input and low soil fertility conditions. In the present study, we investigated four varieties including Yongyou2640 (YY2640, large-panicle india-japonica hybrid variety), Yangliangyou6 (YLY6, two-line indica hybrid variety), Quanyou6 (QY6, three-line indica hybrid variety), and Huanghuazhan (HHZ, indica inbred variety) under two low soil fertility treatments [LF (removing half of soil depth) and CK] and two N fertilizer rates (0 and 100 kg N ha−1) in Central China. The results showed that the grain yield of YY2640 was more responsive to fertility than that of other varieties, which was 19.4–42.3% higher than that of the other three varieties under CK N100 treatment, but it was 14.5–19.4% lower than that of YLY6 and QY6 under LF N0 and LF N100. A higher spikelet/leaf ratio resulted in more biomass and N partition to panicles rather than to leaves under LF N0 and N100. Slightly more post-flowering dry matter obtained from higher leaf N content and crop growth rate failed to compensate for the adverse effects of reduced pre-flowering dry matter accumulation and stem-to-grain translocation during grain filling. This led to the lower NUEg of YY2640 than YLY6 and QY6 under low soil fertility conditions. Based on these findings, the present study suggested that the source–sink relationship of the super hybrid varieties should be optimized according to the soil N supply condition. Full article
(This article belongs to the Special Issue Innovative Natural Products in Agriculture for Enhancing Plant Tolerance and Crop Yield)
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