Impact of the flower smut Ustilago cynodontis (Ustilaginaceae) on the performance of the clonal grass Cynodon dactylon (Gramineae) [0.03%]
黏帚霉菌（Ustilago cynodontis Ustilaginaceae）对克郎顿草（Cynodon dactylon Gramineae）性能的影响
G Garcia-Guzman,J Burdon
G Garcia-Guzman
Effects of the flower-infecting smut fungus Ustilago cynodontis on the growth, survival, and competitiveness of the clonal rhizomatous perennial grass Cynodon dactylon were explored through a series of glasshouse experiments. Ustilago cynod...
Population structure, genetic diversity, and clone formation in Quercus chrysolepis (Fagaceae) [0.03%]
环裂叶青冈的种群结构、遗传多样性和无性系产生
A Montalvo,S Conard,M Conkle et al.
A Montalvo et al.
Stands of canyon live oak (Quercus chrysolepis, Fagaceae) are maintained for fuelwood, fire management, recreation, and as habitat for wildlife. Information about the link between the oak's reproductive ecology and its extent of genetic div...
Patterns of genotypic variation and phenotypic plasticity of light response in two tropical Piper (Piperaceae) species [0.03%]
两种热带派派尔物种光照响应的基因型变异和表型可塑性模式
A Nicotra,R Chazdon,C Schlichting
A Nicotra
Patterns of phenotypic plasticity and genotypic variation in light response of growth and photosynthesis were examined in two species of rain forest shrub that differ in ecological distribution within the forest. We further examined correla...
Allozyme frequencies in New Jersey and North Carolina populations of Atlantic white-cedar, Chamaecyparis thyoides (Cupressaceae) [0.03%]
新泽西和北卡罗来纳州乔松居群的酶频度分布(杯 Pressaceae)
J Kuser,T Meagher,D Sheely et al.
J Kuser et al.
The present study was conducted to assess the distribution of genetic variation within and among populations of Chamaecyparis thyoides in both marginal and centrally located populations. Allozyme frequency analyses of ten loci from foliage ...
Class II tassel seed mutations provide evidence for multiple types of inflorescence meristems in maize (Poaceae) [0.03%]
穗型雄蕊突变体表明玉米中存在多种花序分生组织类型
E Irish
E Irish
The tassel seed mutations ts4 and Ts6 of maize cause irregular branching in its inflorescences, tassels, and ears, in addition to feminization of the tassel due to the failure to abort pistils. A comparison of the development of mutant and ...
Analysis of form and function in North American columnar cacti (tribe Pachycereeae) [0.03%]
北美洲柱状仙人掌（Pachycereeae族）的形态和功能分析
D Cornejo,B Simpson
D Cornejo
Simple and multivariate linear models were used to demonstrate the influence of mechanical design and climate on stem morphology and branching architecture in 25 species of North American columnar cacti. The effect of phyletic inertia was t...
The mode of origin of root buds and root sprouts in the clonal tree Sassafras albidum (Lauraceae) [0.03%]
Sassafras albidum（ Lauraceae）根芽和根萌的起源方式
M Bosela,F Ewers
M Bosela
The developmental anatomy of root buds and root sprouts was examined in the clonal tree Sassafras albidum. Root samples from 13 clones that varied widely in age and vigor were sectioned and two types of buds were found, "additional" buds an...
Morphological variation of henequen (Agave fourcroydes, Agavaceae) germplasm and its wild ancestor (A. angustifolia) under uniform growth conditions: diversity and domestication [0.03%]
在相同生长条件下番杏（阿威氏龙舌兰）种质及其野生祖先（不列颠哥伦比亚省狭叶龙舌兰）的形态变异：多样性与人工驯化
P Colunga-Garciamarin,F May-Pat
P Colunga-Garciamarin
Extant variants of henequen (Agave fourcroydes Lem.) and wild populations of its putative ancestor A. angustifolia Haw. were grown in the Mexican state of Yucatan for 10 yr under homogeneous conditions. A statistical and numerical analysis ...
A new microphyllous plant from the Lower Devonian of Yunnan Province, China [0.03%]
中国云南下泥盆统发现一类新的微小叶植物化石种群
C Li,D Edwards
C Li
Sterile and fertile shoots of a microphyllous vascular plant are described from the Lower Devonian Posongchong Formation (? upper Siegenian), Yunnan Province, southern China and placed in the new taxon Halleophyton zhichangense gen. et sp. ...
Evaluation of atpB nucleotide sequences for phylogenetic studies of ferns and other pteridophytes [0.03%]
ATPB核苷酸序列在蕨类植物和其他pteridophyta系统学研究中的评估
P Wolf
P Wolf
Inferring basal relationships among vascular plants poses a major challenge to plant systematists. The divergence events that describe these relationships occurred long ago and considerable homoplasy has since accrued for both molecular and...