Lodging on plant rice can lead to reduces yields. Developing varieties with lodging resistance do through the breeding activities. Crossing between local Bangka and superior have been carried out obtained F8 lines of upland rice. Before releasing released into varieties, it must meet high uniformity criteria. This research aims determine level lines. was conducted using an experimental method. ...

By a theorem of A. Björner [4], for every interval [u, v] in the Bruhat order of a Coxeter group W , there exists a stratified space whose strata are labeled by the elements of [u, v], adjacency is described by the Bruhat order, and each closed stratum (resp., the boundary of each stratum) has the homology of a ball (resp., of a sphere). Answering a question posed in [4], we suggest a natural g...

We study abelian varieties A with multiplication by a totally indefinite quaternion algebra over a totally real number field and give a criterion for the existence of principal polarizations on them in pure arithmetic terms. Moreover, we give an expression for the number π 0 (A) of isomorphism classes of principal polarizations on A in terms of relative class numbers of CM fields by means of Ei...

We show that the totally nonnegative part of a partial flag variety $G/P$ (in sense Lusztig) is regular CW complex, confirming conjecture Williams. In particular, closure each positroid cell inside Grassmannian homeomorphic to ball, Postnikov.

Let O be a maximal order in a totally indefinite quaternion algebra over a totally real number field. In this note we study the locus QO of quaternionic multiplication byO in the moduli spaceAg of principally polarized abelian varieties of even dimension g with particular emphasis in the two-dimensional case. We describe QO as a union of Atkin-Lehner quotients of Shimura varieties and we comput...

Grain quality currently represents a major problem in high yielding rice production in Iran and many other rice producing areas of the world. Quality assessment of rice involves the function of sensory tests and physicochemical determinations based on the chemical composition, cooking quality, gelatinization temperature and physical properties of cooked rice. These research genetic materials we...

Grain quality currently represents a major problem in high yielding rice production in Iran and many other rice producing areas of the world. Quality assessment of rice involves the function of sensory tests and physicochemical determinations based on the chemical composition, cooking quality, gelatinization temperature and physical properties of cooked rice. These research genetic materials we...