Article
Agronomy
Xiaoyong Li, Zhen Li, Yan Xie, Bo Wang, Jie Kuai, Guangsheng Zhou
Summary: Plant density and rice-straw returning have effects on oilseed rape yield and lodging resistance. Low density and low straw returning can improve seedling survival rate, while high density and high straw returning increase seed number and reduce lodging index.
FIELD CROPS RESEARCH
(2021)
Article
Agronomy
Jie Xiang, Laura H. Vickers, Martin C. Hare, Peter S. Kettlewell
Summary: The study investigated the effect of film antitranspirants (AT) on drought damage in spring rapeseed during the flowering stage. Results showed that water stress significantly affected gas exchange and yield components. Application of AT improved water use efficiency but did not significantly impact seed yield. The study suggests that AT application has the potential to mitigate drought damage in rapeseed, and higher concentrations of AT may need to be studied in the future.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Agronomy
Jing Li, Yangguo Zhou, Hehe Gu, Zhifeng Lu, Rihuan Cong, Xiaokun Li, Tao Ren, Jianwei Lu
Summary: The imbalance of nitrogen (N) and potassium (K) in intensive crop production systems exacerbates N loss. Optimizing N and K nutrient management is urgent to improve crop yield and reduce environmental risks. In this study, the effects of N and K co-application on rapeseed seed yield and sustainable N management were investigated. The results showed that co-application of N and K was necessary for high seed yield, and the contribution of N fertilizer depended on K nutritional status. Inadequate K supplies reduced seed yield by decreasing branches and pods per plant. K deficiency inhibited N absorption by rapeseed, leading to soil N surplus, especially under high N conditions. On the contrary, N application followed by K fertilizer promoted N absorption, raised NUE, and decreased N surplus. Compared to no N and K fertilization, combined N and K fertilization significantly increased seed yield, with a higher increase than N or K fertilization alone. The co-application of 180 kg hm-2 of N and 120 kg hm-2 of K2O achieved high seed yield and sustainable N management in rapeseed. Therefore, cooperative N and K fertilization management is critical for increasing seed yield and NUE. In practice, attention should be paid to K fertilizer input besides N fertilization to achieve higher seed yield and minimize ecological nutrient footprint.
EUROPEAN JOURNAL OF AGRONOMY
(2023)
Article
Agricultural Engineering
Yiren Qing, Yaoming Li, Lizhang Xu, Zheng Ma, Xiaoli Tan, Zheng Wang
Summary: This study discussed the main reason for high oilseed rape loss in mechanized harvesting and proposed a 2-degree-of-freedom collision method (2-DFCM) for selecting varieties with high resistance. The results showed that 2-DFCM is more reliable, convenient for field testing, and accurately identifies pod characteristics, which is important for breeding oilseed rape varieties.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Plant Sciences
Petr Skarpa, Dominika Mikusova, Jiri Antosovsky, Milan Kucera, Pavel Ryant
Summary: The study showed that using modified conventional polyurethane coated CAN fertilizer in a single application during the growth stage of the 9th true leaf significantly increased yield, thousand seed weight, and oil production for Brassica napus L. The coated CAN fertilizer has the potential to achieve slow nitrogen release, ensuring nitrogen supply for rapeseed plants throughout the vegetation period and eliminating the risk of nitrogen loss.
Article
Environmental Sciences
Vojtech Lukas, Igor Hunady, Antonin Kintl, Jiri Mezera, Tereza Hammerschmiedt, Julie Sobotkova, Martin Brtnicky, Jakub Elbl
Summary: The suitability of UAV-derived normalized difference vegetation index (NDVI), blue normalized difference vegetation index (BNDVI), and normalized difference yellowness index (NDYI) for predicting seed yield at the flowering stage of oil seed rape was verified through regression analysis. The results showed that seed yield had a strong positive linear dependence on BNDVI and NDYI, while the correlation with NDVI was weaker. High accuracy in yield prediction was achieved using BNDVI and NDYI.
Article
Plant Sciences
Xiaoqin Tian, Yani Zhao, Zuying Chen, Zhuo Li, Yonghong Liu
Summary: Film side planting (FS) is a new technology in southwest China that saves water and is resistant to drought. In order to determine the optimal nitrogen (N) amount for FS rapeseed, field experiments were conducted with different levels of soil fertility. The results showed that the higher the soil fertility, the lower the N amount needed to achieve high yield. The optimal N amount for FS rapeseed under low soil fertility was 360 kg ha(-1) or more, while under high soil fertility it was 272-312 kg ha(-1).
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Article
Plant Sciences
Zheng-Jun Guan, Min Zheng, Zhi-Xi Tang, Wei Wei, C. Neal Stewart Jr
Summary: In this study, differential expression of total protein in leaves of two transgenic oilseed rape lines and their non-transgenic parent plant was analyzed. Fourteen differential protein spots were identified, including eleven upregulated and three downregulated proteins, involved in photosynthesis, transporter function, metabolism, protein synthesis, and cell growth and differentiation. These changes in protein spots may be attributed to the insertion of foreign transgenes in transgenic oilseed rape, but transgenic manipulation does not necessarily cause significant changes in the proteomes of oilseed rape.
Article
Environmental Sciences
Wangfei Zhang, Yongxin Zhang, Yue Yang, Erxue Chen
Summary: Accurate and timely knowledge of crop phenology is crucial for planning farming activities. The PolSAR technique has potential for crop phenology retrieval due to its short revisit time, all-weather monitoring, and sensitivity to vegetation structure. In this study, averaged Stokes-related parameters derived from multiple PolSAR data were explored for oilseed rape phenology identification, showing high sensitivity to oilseed rape growth stages.
Article
Plant Sciences
Jianwen Zhang, Songchao Zhang, Jiqiang Li, Chen Cai, Wei Gu, Xiaohui Cheng, Haohan Wang, Xinyu Xue
Summary: This study investigated the effects of different pollination methods on growth traits and yields of hybrid oilseed rape. The results showed that there were differences in plant height, branch height, number of effective siliques, and rapeseed yield under different pollination methods.
Article
Plant Sciences
Ying Wang, Kaixuan Wang, Tanzhou An, Ze Tian, Xiaoling Dun, Jiaqin Shi, Xinfa Wang, Jinwu Deng, Hanzhong Wang
Summary: Branch architecture is a vital factor affecting rapeseed planting, and this study identifies related genes and regulatory mechanisms through evaluating and analyzing branch angle and branch dispersion degree. Significant loci and candidate genes are identified, providing a theoretical basis for further research on gene cloning and genetic improvement of branch architecture.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Multidisciplinary Sciences
Alessandro Foscari, Giulia Leonarduzzi, Guido Incerti
Summary: This study conducted a manipulative experiment on Brassica napus var. oleracea to monitor the dynamics of δN-15 in purified DNA, source leaf, and root materials over a 60-day growth period. The results showed that the δN-15 dynamics of leaves and roots depend on the labeled chemical species, with some unexpected findings regarding isotopic fractionation and N-15 depletion in plant DNA. While the study did not assess the fractionation coefficient (epsilon) associated with DNA bases biosynthesis, it provides valuable insights into the dynamics of specific plant molecular pools over a long observation period using heavy labelling techniques.
Article
Agriculture, Multidisciplinary
Youqiang Wang, Zhe Zhao, Sheliang Wang, Lei Shi, Fangsen Xu
Summary: This study demonstrates a synergistic effect of co-application of nitrogen and boron on rapeseed NUE and yield production. High boron efficiency genotypes have the potential to increase yield and reduce nitrogen inputs under boron deficient conditions.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2022)
Article
Plant Sciences
Hafiz Hassan Javed, Yue Hu, Muhammad Ahsan Asghar, Marian Brestic, Majid Ali Abbasi, Muhammad Hamzah Saleem, Xiao Peng, Abu Zar Ghafoor, Wen Ye, Jing Zhou, Xiang Guo, Yong-Cheng Wu
Summary: The modern era of agriculture focuses on the impact of the environment on crop growth and development, and shading is a crucial factor that has been neglected. This study investigated the effects of shading at flowering and pod development stages on rapeseed nutrition, carbohydrates, and yield. The results showed that shading disturbed nitrogen accumulation and transportation, and led to reduced dry matter and yield. The study also revealed the critical growth stage affected by shading. In addition, the study highlighted the different responses of rapeseed genotypes to shading stress.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Mariusz Stepaniuk, Aleksandra Glowacka
Summary: This study assessed the yield efficiency of sulphur-enhanced fertilisers in winter oilseed rape and found that the impact depended on the dose and application method.