Results 21 to 30 of about 529,159 (305)

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

open access: yesJournal 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   +5 more
doaj   +1 more source

On the characteristic roots of matrices [PDF]

open access: yesProceedings 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

open access: yesItalian 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   +5 more
doaj   +1 more source

A characteristic polynomial for rooted graphs and rooted digraphs

open access: yesDiscrete 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   +1 more source

Soil Characteristics Overwhelm Cultivar Effects on the Structure and Assembly of Root-Associated Microbiomes of Modern Maize [PDF]

open access: yes, 2019
Modern breeding primarily targets crop yield traits and is likely to influence root-associated microbiomes, which play significant roles in plant growth and health.
Redmile-Gordon, M. A.   +10 more
core   +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

open access: yesPlants, 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   +7 more
doaj   +1 more source

Effects of Sound Wave and Water Management on Growth and Cd Accumulation by Water Spinach (Ipomoea aquatica Forsk.)

open access: yesAgronomy, 2022
Vegetable contamination by cadmium (Cd) is of great concern. Water spinach (Ipomoea aquatica) is a common leafy vegetable in many countries and has a strong ability to accumulate Cd.
Su Wang   +4 more
doaj   +1 more source

Modelling diverse root density dynamics and deep nitrogen uptake — a simple approach [PDF]

open access: yes, 2009
We present a 2-D model for simulation of root density and plant nitrogen (N) uptake for crops grown in agricultural systems, based on a modification of the root density equation originally proposed by Gerwitz and Page in J Appl Ecol 11:773–781, (1974). A
Zhang, Kefeng   +4 more
core   +1 more source

On the Characteristic Roots of Real Matrices [PDF]

open access: yesProceedings of the American Mathematical Society, 1971
If A A is a real
openaire   +1 more source

Funneliformis mosseae Enhances Root Development and Pb Phytostabilization in Robinia pseudoacacia in Pb-Contaminated Soil

open access: yesFrontiers in Microbiology, 2019
It is possible that arbuscular mycorrhizal fungi play a pivotal role in root development and Pb phytostabilization in plants grown in Pb-contaminated soil.
Li Huang   +6 more
doaj   +1 more source

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