Results 11 to 20 of about 7,285,916 (251)

Effects of seedling age and root pruning on root characteristics and dry matter accumulation dynamics in machine-transplanted rice

Plant, Soil and Environment
To investigate the impact of different seedling transplanting times on rice growth, the present study evaluated seedling age and root pruning using treatments consisting of root pruning (RC20, RC30, and RC40) and no root pruning (CK20, CK30, and CK40 ...
Tingjue Wang, Wei Xiong, Fuming Kuang, Dongdong Sun, Zixuan Geng, Jinnan Que, Ruize Hou, Dequan Zhu   +7 more
doaj   +2 more sources

Improvement of Root Characteristics Due to Nitrogen, Phosphorus, and Potassium Interactions Increases Rice (Oryza sativa L.) Yield and Nitrogen Use Efficiency

Agronomy, 2021
Although nitrogen (N), phosphorus (P), and potassium (K) co-application improves crop growth, yield, and N use efficiency (NUE) of rice, few studies have investigated the mechanisms underlying these interactions.
Ming Du, Wenzhong Zhang, Jiping Gao, Meiqiu Liu, Yan Zhou, Dawei He, Yanze Zhao, Shiming Liu   +7 more
doaj   +1 more source

Combined Effect of Microplastics and Cd Alters the Enzymatic Activity of Soil and the Productivity of Strawberry Plants

Plants, 2022
The synergistic effect between heavy metals and microplastics can affect soil properties as well as plant performance and yield. The objective of this study was to evaluate the combined effect of microplastics and cadmium on a soil–plant system ...
Andrés Pinto-Poblete, Jorge Retamal-Salgado, María Dolores López, Nelson Zapata, Angela Sierra-Almeida, Mauricio Schoebitz   +5 more
doaj   +1 more source

On the characteristic roots of matrices [PDF]

Proceedings of the American Mathematical Society, 1965
Let A = (a ij) be an nXn complex matrix. For i = 1, 2, , n and p > 0 define R(i, p) = I ait I P) l/p. It is well known [2 ] that the characteristic roots of A lie in the union of the disks (1) I aii,-z| < R(i, 1) (i = 1, 2, .. * * n). A. Brauer [3 ] improved this result by replacing these disks with the n(n 1)/2 ovals of Cassini (2) | aii,z IIai -z I <
openaire   +1 more source

Effect of zinc foliar application and mycorrhizal inoculation on morpho-physiological traits and yield parameters of two barley cultivars

Italian Journal of Agronomy, 2019
Zinc (Zn) plays a vital role in biological systems. Plants require an appropriate balance of this essential micronutrient for growth and optimum yield.
Narjes Moshfeghi, Mostafa Heidari, Hamid Reza Asghari, Mehdi Baradaran Firoz Abadi, Lynette K. Abbott, Yinglong Chen   +5 more
doaj   +1 more source

Effect of container size and types on the root phenotypic characters of Capsicum

Journal of Horticultural Sciences, 2021
Capsicum genus comprised of several cultivars is considered as an important spice crop worldwide. Roots play a vital role in a plant to mine water from the deeper layers of the soil.
M S V Raviteja, R H Laxman, K Rashmi, S Kannan, M R Namratha, K Madhavi Reddy   +5 more
doaj   +1 more source

Effects of stumping on fine root architecture, growth, and physiology of Hippophae rhamnoides [PDF]

PeerJ, 2023
Background Fine roots are vital to a plant’s ability to absorb water and nutrients. Stumping is a practice that may encourage fine root growth and the rapid recovery of decaying Hippophae rhamnoides plants.
Haoyue Wang, Wei Qi, Yuefeng Guo, Yajie Xu   +3 more
doaj   +2 more sources

A characteristic polynomial for rooted graphs and rooted digraphs

Discrete Mathematics, 2001
The paper investigates the characteristic polynomial \(p(G,\lambda)\) by concentrating exclusively on rooted graphs and digraphs \(G\). It is shown that when \(G\) is a rooted digraph, this polynomial essentially counts the number of sinks in \(G\). When \(G\) is a rooted graph, the authors give combinatorial interpretations of several coefficients and
Gary Gordon, Elizabeth W. McMahon
openaire   +2 more sources

On the Characteristic Roots of Real Matrices [PDF]

Proceedings of the American Mathematical Society, 1971
If A A is a real
openaire   +1 more source

Heat Stress Tolerance: A Prerequisite for the Selection of Drought- and Low Phosphorus-Tolerant Common Beans for Equatorial Tropical Regions Such as Ghana

Plants, 2022
Forty common bean accessions of multiple genetic background trait attribution regarding drought tolerance were selected based on mean yield performance from an earlier field test evaluation conducted using augmented RCBD.
David Appiah-Kubi, James Yaw Asibuo, Louis Butare, Stephen Yeboah, Zippora Appiah-Kubi, Alexander Wireko Kena, Henry Oppong Tuffour, Richard Akromah   +7 more
doaj   +1 more source