Radicchio ( Cichorium intybus l.) variety selection for the Chilean central area

2016 ◽  
Vol 198 ◽  
pp. 197-206 ◽  
Author(s):  
Ricardo Pertuzé ◽  
Rodrigo Bravo ◽  
Paola Silva
Keyword(s):  
Central Area ◽  
Cichorium Intybus ◽  
Variety Selection ◽  
Selection For

Xerohalophyte semishrub Kochia prostrata — variety selection for arid land reclamation

2020 ◽  
Author(s):  
Н. Шамсутдинов ◽  
Г. Кенжегалиев
Keyword(s):  
Land Reclamation ◽  
Animal Husbandry ◽  
Dry Mass ◽  
Biological Traits ◽  
High Productivity ◽  
Early Maturation ◽  
Fodder Production ◽  
Variety Selection ◽  
Green Fodder ◽  
Selection For

Исследования проводились в 20092019 годах в Казахском научно-исследовательском институте животноводства и кормопроизводства. Изучение и отбор различных образцов кохии простёртой в коллекционных питомниках, контрольные и конкурсные испытания позволили поэтапно выявить перспективные генотипы, обладающие высокой скоростью отрастания и высокорослостью, которые в дальнейшем использовались для создания сортов пастбищного и сенокосного типа. При изучении исходного материала были выявлены различия между зеленоватым и серым подвидами кохии по многим морфобиологическим признакам. При этом зеленоватый подвид характеризовался раннеспелостью и хорошим отрастанием, обуславливающими его пастбищное использование. Серый подвид был более пригоден для производства сена, сочетая в себе высокорослость, прямостоячесть и позднеспелость. В процессе селекции пастбищных форм было выявлено преимущество образцов северо-туранских каменистых экотипов. Образцы К-210, К-211 и К-510, К-521, имея облиственность 69710, были наиболее продуктивными 1,331,40 и 1,321,34 т/га соответственно. При создании сортов сенокосного типа наиболее перспективными оказались песчаные экотипы, имея высоту 7174 см, облиственность 5457, высокое содержание протеина (1214) и урожайность сена 2,803,26 т/га. На основе образца К-210, превосходящего стандарт по сбору сухой массы на 34,3, был получен сорт Пастбищный, обладающий высотой 62 см, тонкостебельностью и высокой облиственностью (70). Сорт характеризовался повышенной устойчивостью к болезням, хорошим отрастанием, засухоустойчивостью и зимостойкостью. Для получения сорта для сенокосного использования был отобран образец песчаного экотипа К-513, превысивший по урожайности стандарт на 31. Высота растения составила 77,7 см, облиственность 5458, форма куста прямостоячая, позволяющая проводить уборку наиболее ценных в кормовом отношении частей куста. The investigation took place at the Kazakh Research Institute of Animal Husbandry and Fodder Production in 20092019. Promising genotypes of Kochia prostrata were used to develop varieties for green fodder and hay production. Green and grey subspecies showed variation in many morphological and biological traits. The green subspecies was more suitable for pasture use due to its early maturation and fast aftergrowth, while tall-grown upright long-season grey subspecies for hay production. Genotypes K-210, K-211 and K-510, K-521 had leaf coverage of 69710 and high productivity 1.331.40 and 1.321.34 t ha-1, respectively. Sandy ecotypes were used to produce hay. Their height reached 7174 cm, leaf coverage 5457, protein content 1214 and hay yield 2.803.26 t ha-1. Genotype К-210 was used to develop the variety Pastbishchnyy, exceeding the standard in dry mass by 34.3. Its height reached 62 cm, leaf coverage 70, stem thin. The variety had high resistance to diseases, drought and frost as well as good aftergrowth. To develop a variety for hay production purposes К-513 line was selected exceeding the standard in productivity by 31. Plant height was 77.7 cm, leaf coverage 5458. Upright shrub type enabled harvesting the most valuable parts.

scholarly journals Alfalfa variety selection for maximum fiber content, protein and nitrogen fixation

2012 ◽  
Author(s):  
Christopher T. Ruhland ◽  
John Knox ◽  
Susan Ward ◽  
V. J. Agarwal ◽  
John Frey ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Fiber Content ◽  
Variety Selection ◽  
Selection For

The crystallography characteristic of (Mn,Fe)S single crystal

1990 ◽  
Vol 48 (4) ◽  
pp. 898-899
Author(s):  
Jiang Xishan
Keyword(s):  
Single Crystal ◽  
Cast Steel ◽  
Point Group ◽  
Central Area ◽  
Hexagonal Crystal ◽  
Growth Step ◽  
Left And Right ◽  
Relationship Of ◽  
Fcc Structure ◽  
New Discovery

This paper reports the growth step pattern and morphology at equilibrium and growth states of (Mn,Fe)S single crystal on the wall of micro-voids in ZG25 cast steel by using scanning electron microscope. Seldom report was presented on the growth morphology and steppattern of (Mn,Fe)S single crystal.Fig.1 shows the front half of the polyhedron of(Mn,Fe)S single crystal,its central area being the square crystal plane,the two pairs of hexagons symmetrically located in the high and low, the left and right with a certain, angle to the square crystal plane.According to the symmetrical relationship of crystal, it was defined that the (Mn,Fe)S single crystal at equilibrium state is tetrakaidecahedron consisted of eight hexagonal crystal planes and six square crystal planes. The macroscopic symmetry elements of the tetrakaidecahedron correpond to Oh—n3m symmetry class of fcc structure,in which the hexagonal crystal planes are the { 111 } crystal planes group,square crystal plaits are the { 100 } crystal planes group. This new discovery of the (Mn,Fe)S single crystal provides a typical example of the point group of Oh—n3m.

Framework for Selecting Vocabulary for Preliterate Children Who Use Augmentative and Alternative Communication

2019 ◽  
Vol 28 (3) ◽  
pp. 1000-1009
Author(s):  
Allison Bean ◽  
Lindsey Paden Cargill ◽  
Samantha Lyle
Keyword(s):  
Language Impairment ◽  
Augmentative And Alternative Communication ◽  
Developmentally Appropriate ◽  
School Age Children ◽  
Alternative Communication ◽  
School Based ◽  
Selection For ◽  
Nonverbal Children ◽  
Grammatical Structures ◽  
Insufficient Knowledge

Purpose Nearly 50% of school-based speech-language pathologists (SLPs) provide services to school-age children who use augmentative and alternative communication (AAC). However, many SLPs report having insufficient knowledge in the area of AAC implementation. The objective of this tutorial is to provide clinicians with a framework for supporting 1 area of AAC implementation: vocabulary selection for preliterate children who use AAC. Method This tutorial focuses on 4 variables that clinicians should consider when selecting vocabulary: (a) contexts/environments where the vocabulary can be used, (b) time span during which the vocabulary will be relevant, (c) whether the vocabulary can elicit and maintain interactions with other people, and (d) whether the vocabulary will facilitate developmentally appropriate grammatical structures. This tutorial focuses on the role that these variables play in language development in verbal children with typical development, verbal children with language impairment, and nonverbal children who use AAC. Results Use of the 4 variables highlighted above may help practicing SLPs select vocabulary that will best facilitate language acquisition in preliterate children who use AAC.

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