Results 1 to 10 of about 21,573 (144)

Different Concentrations of Chemical Topping Agents Affect Cotton Yield and Quality by Regulating Plant Architecture

Agronomy, 2023
Manual removal of the main stem tips of cotton (Gossypium hirsutum L.) is a traditional topping approach in China. However, chemical topping has become an inevitable trend.
Jingshan Tian, Mingwei Du, Ling Gou
exaly   +4 more sources

Topping influences crop photosynthesis and alters the absorption and redistribution of nutrients: a case study of tobacco [PDF]

Frontiers in Plant Science
Topping eliminates apical dominance in tobacco, enhancing the quality of the upper leaves. However, the mechanisms by which topping influences photosynthesis and the leaf structure, and regulation of chemical composition remain unclear.
Nuo Shi, Heng Yao, Ge Wang, Gaokun Zhao, Yuping Wu, Guanghai Zhang, Guanghui Kong, Na Wang, Yuxiang Bai, Yu Du, Dingchun Zi, Limei Zhang, Tikun Zhang, Yongping Li, Peng Zhou   +14 more
doaj   +3 more sources

Effects of topping and non-topping on growth-regulating hormones of flue-cured tobacco (Nicotiana tabacum L.)—a proteomic analysis

Frontiers in Plant Science, 2023
IntroductionUntil now, the mechanism underlying the impact of topping on hormone regulation in tobacco plants remains unclear, and most studies investigating the hormone signaling pathways in plants rely on genes or transcriptional pathways.MethodsThis ...
Kaiyuan Gu, Li-E Yang
exaly   +4 more sources

Topping Inhibited Potassium Uptake via Regulating Potassium Flux and Channel Gene Expression in Tobacco

Agronomy, 2022
Potassium (K+) is mainly absorbed by plants from the soil and is primarily transported within the plant through the xylem. Topping has been reported to cause efflux and loss of K+ in plants; however, its effect on the real-time flow rate and genotypes ...
Taibo Liang, Huaxin Dai, Waleed Amjad Khan, Yadi Guo, Xiangyu Meng, Guiyao Wang, Yanling Zhang   +6 more
doaj   +2 more sources

Topping and grafting affect the alkaloid content and gene expression patterns of tobacco (Nicotiana tabacum L.)

Plant Direct, 2023
In this study, we aimed to determine molecular mechanisms underlying the effects of topping and grafting in tobacco (Nicotiana tabacum L.) by comparing the alkaloid contents and enrichment pathways of differentially expressed genes (DEGs) among plants ...
Mengyue Zhang, Yuanyuan Zhao, Hongzhi Shi   +2 more
doaj   +2 more sources

Effect of Plant Topping on Seasonal Development, Physiological Changes, and Grain Yield of Soybean [PDF]

Plants
Soybean (Glycine max L.) is vulnerable to environmental stresses, such as heavy rainfall and high winds, which promote lodging and reduce plant performance during the monsoon season.
Sora Lee, Chaelin Jo, Miri Choi, Jihyeon Lee, Nayoung Choi, Chaein Na   +5 more
doaj   +2 more sources

Effects of chemical topping on cotton development, yield and quality in the Yellow River Valley of China

Journal of Integrative Agriculture, 2022
Topping is a cultivation method that is widely practiced due to the indeterminate growth character of cotton (Gossypium hirsutum L.). Among the different methods of accomplishing topping, manual topping is common in the Yellow River Valley of China ...
He-Zhong Dong
exaly   +3 more sources

Chemical Topping and Planting Density Interactively Affect Cotton Growth and Partitioning Index

Agronomy
Due to the labor shortage, replacing manual topping with chemical topping has become an important practice in cotton-producing areas such as Xinjiang, China. Similarly, increasing planting density is a common strategy to enhance cotton yields. This study
Yutong Zhang, Yongfan Chen, Shuai Sun, Pengzhong Zhang, Zeshan Zhang, Xuejiao Wang, Xuelian Tang, Mingfeng Yang, Dao Xiang, Sen Wang, Fen Ji, Lizhen Zhang   +11 more
doaj   +2 more sources

Morphological, physiological, and biochemical responses of two industrial hemp (Cannabis sativa L.) cultivars to different levels of topping [PDF]

Journal of Cannabis Research
Background For the cultivation of hemp (Cannabis sativa L.), topping (the removal of the apical meristem) is a key cultivation practice, affecting plant morphology, physiological function, biomass allocation, and the yield of inflorescences and ...
Spyridoula Chavalina, Vasileios Ioannidis, Dimitrios Bilalis, Fotini Lamari, George Zervoudakis, Georgios Salachas   +5 more
doaj   +2 more sources

Transcriptome analysis reveals key genes involved in the regulation of nicotine biosynthesis at early time points after topping in tobacco (Nicotiana tabacum L.)

BMC Plant Biology, 2020
Background Nicotiana tabacum is an important economic crop. Topping, a common agricultural practice employed with flue-cured tobacco, is designed to increase leaf nicotine contents by increasing nicotine biosynthesis in roots.
Yan Qin, Shenglong Bai, Wenzheng Li, Ting Sun, David W. Galbraith, Zefeng Yang, Yun Zhou, Guiling Sun, Bingwu Wang   +8 more
doaj   +2 more sources