搜索结果: 1-11 共查到“农学 Lactuca”相关记录11条 . 查询时间(0.093 秒)
Incidence of Lettuce Downy Mildew (Bremia lactucae) and Powdery Mildew (Golovinomyces cichoracearum) in Natural Populations of Prickly Lettuce (Lactuca serriola)
wild plant pathosystem disease incidence
2015/3/11
The study was focused on the wild pathosystem Lactuca serriola–lettuce downy mildew (Bremia lactucae) and lettuce
powdery mildew (Golovinomyces cichoracearum). Observations were focused mainly on rec...
Nutrients content and yield in selected cultivars of leaf lettuce (Lactuca sativa L. var. crispa)
leaf lettuce (Lactuca sativa L. var. crispa) cultivars nutrients
2015/1/24
Five cultivars of leaf lettuce (Lactuca sativa L. var. crispa) – Bergamo, Dubáček, Frisby, Lollo Rossa and Redin – were evaluated in two-year experiments carried out at the Faculty of Horticultur...
Description of morphological characters of lettuce (Lactuca sativa L.) genetic resources
biology characterization descriptors gene bank collections gene pool germplasm conservation morphotypes origin regeneration resistance taxonomy variability
2015/1/24
Lettuce (Lactuca sativa) is the most important crop in the group of leafy vegetables. It is characterized by considerable morphological and genetic variation. The crop comprises seven main groups of c...
Effect of hydration treatments on seed parameters of different lettuce (Lactuca sativa L.) seed lots
lettuce seed treatment prehydration osmotic priming germination
2015/1/20
The influence of hydration treatments on seed parameters of lettuce seed lots with different initial quality was investigated. Nine seed lots were treated by prehydration (for 3, 6, 12 and 24 hours) a...
Description of morphological characters of wild Lactuca L. spp. genetic resources (English-Czech version)
descriptors determination germplasm infraspecific variation Lactuca spp. wild lettuce specie
2015/1/20
Of about 100 Lactuca species, there are only 22 represented in world gene bank collections. The description of morphological and other important features of wild lettuce accessions and a correct taxon...
Effect of electric pulse charged to culture soil on improvement of nutritional soil condition and growth of lettuce (Lactuca sative L.)
Electrically Pulsed Soil Lettuce Inorganic Nutrients Minerals Weathering
2013/3/4
This study is intended to measure variations of nutritional soil condition and mass spectrometric patterns to describe the specific effects of electric pulse charged to culture soil which induced an i...
A Cyto-histological Study on Shoot Differentiation and Mesophyll Morphology of the Excised Lettuce (Lactuca sativa L.) Cotyledons as Affected by Light Conditions during Seedling Growth
Cell Cotyledon Lettuce Light Mesophyll Shoot differentiation
2009/8/6
Light quality and quantity of the environment, where lettuce seedlings were grown, affected the mesophyll tissue and the shoot formation in cotyledons excised and cultured in vitro. When cultured on M...
Variation of Sesquiterpene Lactones Content in Lactuca and Cichorium Species
bitterness component breeding genetic variation HPLC medicinal plant
2009/7/7
Lettuce (Lactuca spp.) and chicory (Cichorium spp.) are known as traditional medicinal plants with several pharmaceutical effects attributed to the sesquiterpene lactones (SLs) present in their latex....
Nodal Culture of Flower Stalk of Lettuce,Lactuca sativa and L.serriola
‘Bronze’ × Lactuca serriola secondary flower stem shoot formation tetraploid lettuce
2009/7/6
Nodal culture of flower stalk was carried out to maintain the breeding line of lettuce. The flower buds of lettuce and its interspecific hybrids with Lactuca serriola and tetraploid lettuce were initi...
Metabolism of Tolclofos-methyl in Lettuce（Lactuca sativa）
tolclofos-methyl metabolism in lettuce Lactuca sativa malonylglucose conjugate
2009/3/7
The metabolic fate of tolclofos-methyl labeled with 14C at the phenyl ring was studied in greenhouse-grown lettuce after a single application to leaves at two different rates (75 and 750 g a.i./ha)....
Relationships among Morphological Characters, Isozymes Polymorphism and DNA Variability – the Impact on Lactuca Germplasm Taxonomy
AFLP esterase flow-cytometry genetic resources Lactuca spp morphology PAGE electrophoresis wild le� uce species relative DNA content taxomomy
2014/3/19
Fifty one accessions of nineteen Lactuca species, the hybrid L. serriola × L. sativa and the related species
Mycelis muralis were evaluated for morphological variability, esterase (EST) polymorphism...