Morphometric relationships in Hordeum vulgare (Triticeae, Poaceae). II. Hordeum agriocrithon, H. distichum, H. lagunculiforme, H. spontaneum, and H. vulgare

1983 ◽  
Vol 61 (7) ◽  
pp. 2023-2031 ◽  
Author(s):  
Bernard R. Baum
Keyword(s):  
Hordeum Vulgare ◽  
Phylogenetic Trees ◽  
Morphometric Data ◽  
Hordeum Vulgare L ◽  
Frequency Distributions ◽  
Entire Data ◽  
Morphometric Analyses ◽  
The Status ◽  
Discriminant Analyses ◽  
Cross Tabulation

Morphometric analyses of five morphs in Hordeum vulgare L. consisted of: computation of general statistics and frequency distributions by character for the entire data and for each morph separately; cross tabulation; various discriminant analyses; computation of Jardine and Sibson's (1968. Math. Biosci. 2: 465–482) information radius between the morphs followed by Bk clustering; and computation of phylogenetic trees from the transformed information radius matrix using three related methods. It is concluded that on the basis of morphometric data, excluding the traditional characters, that at least three morphs within H. vulgare (sensu lato) ought to be recognized as taxonomic entities. These are known as H. spontaneum C. Koch, H. distichum L., and H. vulgare (wild, two-row, and six-row barley, respectively). The hybrids and hybrid derivatives, often referred to as H. agriocrithon Åberg, are not regarded as entities but as products of interaction. The status of H. lagunculiforme Bakht. is uncertain and needs to be further investigated. It is postulated that a lagunculiforme-like entity might have been the progenitor of the group.

Classification of cultivated barley (Hordeum vulgare). 2. Elaboration of cultivar groups

1987 ◽  
Vol 65 (10) ◽  
pp. 2152-2160 ◽  
Author(s):  
Bernard R. Baum
Keyword(s):  
Hordeum Vulgare ◽  
Cross Validation ◽  
Hierarchical Cluster ◽  
Stopping Rules ◽  
Hordeum Vulgare L ◽  
Morphometric Characters ◽  
Cultivar Groups ◽  
Discriminant Analyses ◽  
Hierarchical Cluster Analyses

Two barley (Hordeum vulgare L.) cultivar groups were established from 329 world-representative accessions of named cultivars scored for 37 morphometric characters. The two groups are similar to the popular division of two rowed and six rowed, one group containing mostly two-rowed barleys but also a few of the other kind and the second group mostly six rowed barleys together with some two-rowed. Both groups include naked and covered types, "iregular," "deficiens," and other types. The implications of the two groups for barley cultivar nomenclature are discussed. The two cultivar groups were discerned by the application of various hierarchical cluster analyses in combination with three different stopping rules as indicators to cluster numbers, supported by classificatory discriminant analysis with cross validation, and their relationships illustrated by canonical discriminant analyses.

Morphometric relationships in Hordeum vulgare (Triticeae, Poaceae). I. H. spontaneum

1983 ◽  
Vol 61 (7) ◽  
pp. 2015-2022 ◽  
Author(s):  
Bernard R. Baum ◽  
L. Grant Bailey
Keyword(s):  
Hordeum Vulgare ◽  
Infraspecific Variation ◽  
Morphometric Analyses ◽  
Discriminant Analyses

This paper is the first contribution to a reexamination of Hordeum vulgare (sensu lato). It sets forth and defines the characters which formed the basis of our studies, and reports the results of our morphometric analyses of the morph H. spontaneum C. Koch. An evaluation of previous taxonomic treatments of infraspecific variation was carried out. Åberg's (1940. Symb. Bot. Upsal. 4(2): 1–156) varieties are rejected on the basis of inadequate criteria. Nabelek's (1929. Wiss. Arch. Landwirtsch. Abt. A, 1: 804–807) varieties, though well-defined, are not supported by the results of our discriminant analyses. It is concluded that, although the spontaneum morph is highly variable, it does not lend itself to the recognition of infraspecific segregates.

Ultrastructure and Senescence in an Achloroplastic Mutant of Hordeum vulgare L. cv. Dyan

1992 ◽  
Vol 50 (1) ◽  
pp. 844-845
Author(s):  
R.H.M. Cross ◽  
C.E.J. Botha ◽  
A.K. Cowan ◽  
B.J. Hartley
Keyword(s):  
Cell Wall ◽  
Hordeum Vulgare ◽  
Leaf Tissue ◽  
Ultrastructural Changes ◽  
Hordeum Vulgare L ◽  
Mesophyll Cells ◽  
Lethal Mutant ◽  
Cytoplasmic Matrix ◽  
Close Proximity ◽  
Pinocytotic Vesicles

Senescence is an ordered degenerative process leading to death of individual cells, organs and organisms. The detection of a conditional lethal mutant (achloroplastic) of Hordeum vulgare has enabled us to investigate ultrastructural changes occurring in leaf tissue during foliar senescence.Examination of the tonoplast structure in six and 14 day-old mutant tissue revealed a progressive degeneration and disappearance of the membrane, apparently starting by day six in the vicinity of the mitochondria associated with the degenerating proplastid (Fig. 1.) where neither of the plastid membrane leaflets is evident (arrows, Fig. 1.). At this stage there was evidence that the mitochondrial membranes were undergoing retrogressive changes, coupled with disorganization of cristae (Fig. 2.). Proplastids (P) lack definitive prolamellar bodies. The cytoplasmic matrix is largely agranular, with few endoplasmic reticulum (ER) cisternae or polyribosomal aggregates. Interestingly, large numbers of actively-budding dictysomes, associated with pinocytotic vesicles, were observed in close proximity to the plasmalemma of mesophyll cells (Fig. 3.). By day 14 however, mesophyll cells showed almost complete breakdown of subcellular organelle structure (Fig. 4.), and further evidence for the breakdown of the tonoplast. The final stage of senescence is characterized by the solubilization of the cell wall due to expression and activity of polygalacturonase and/or cellulose. The presence of dictyosomes with associated pinocytotic vesicles formed from the mature face, in close proximity to both the plasmalemma and the cell wall, would appear to support the model proposed by Christopherson for the secretion of cellulase. This pathway of synthesis is typical for secretory glycoproteins.

ИЗМЕНЧИВОСТЬ ЯЧМЕНЯ (Hordeum vulgare L.) РАЗНОГО ГЕОГРАФИЧЕСКОГО ПРОИСХОЖДЕНИЯ ПО ЭЛЕМЕНТАМ СТРУКТУРЫ УРОЖАЯ

2012 ◽  
pp. 33-40
Author(s):  
А.В. ЖЕЛЕЗНОВ ◽  
◽  
Н.Б. ЖЕЛЕЗНОВА ◽  
Т.В. КУКОЕВА ◽  
Н.В. БУРМАКИНА ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Hordeum Vulgare L

ВНУТРИВИДОВОЙ ПОЛИМОРФИЗМ ЯРОВОГО ЯЧМЕНЯ (Hordeum vulgare L.) ПО УСТОЙЧИВОСТИ К ДЕЙСТВИЮ СВИНЦА

2014 ◽  
pp. 78-87 ◽  
Author(s):  
А.В. ДИКАРЕВ ◽  
◽  
В.Г. ДИКАРЕВ ◽  
Н.С. ДИКАРЕВА ◽  
С.А. ГЕРАСЬКИН ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Hordeum Vulgare L

Using AMMI approach to delineate genotype by environment interaction and stability of barley (Hordeum vulgare L.) genotypes under northern Indian shivalik hill conditions

2020 ◽  
Vol 80 (03) ◽  
Author(s):  
Om Prakash Yadav ◽  
A. K. Razdan ◽  
Bupesh Kumar ◽  
Praveen Singh ◽  
Anjani K. Singh
Keyword(s):  
Hordeum Vulgare ◽  
Grain Yield ◽  
Principal Component ◽  
Genotype By Environment Interaction ◽  
Environment Interaction ◽  
Hordeum Vulgare L ◽  
Genotype By Environment ◽  
Biplot Analysis ◽  
Principal Component Axis ◽  
Ammi Analysis

Genotype by environment interaction (GEI) of 18 barley varieties was assessed during two successive rabi crop seasons so as to identify high yielding and stable barley varieties. AMMI analysis showed that genotypes (G), environment (E) and GEI accounted for 1672.35, 78.25 and 20.51 of total variance, respectively. Partitioning of sum of squares due to GEI revealed significance of interaction principal component axis IPCA1 only On the basis of AMMI biplot analysis DWRB 137 (41.03qha–1), RD 2715 (32.54qha–1), BH 902 (37.53qha–1) and RD 2907 (33.29qha–1) exhibited grain yield superiority of 64.45, 30.42, 50.42 and 33.42 per cent, respectively over farmers’ recycled variety (24.43qha–1).

Sign in / Sign up

Export Citation Format

Share Document