Plant variety and cultivar identification is one of the most important aspects in agricultural systems. The large number of varieties or landraces among crop plants has made it difficult to identify and characterize varieties solely on the basis of morphological characters because they are non stable and originate due to environmental and climatic conditions, and therefore phenotypic plasticity...

The comparative responses of two broccoli cultivars (Brassica oleracea var. Italica, cv. Parthenon and cv. Naxos) to a 15 d exposure to different NaCl levels were investigated. Salinity led to increased concentrations of Na(+) and Cl(-) ions in both cultivars, a disruption of the endogenous minerals levels in the shoots and roots-that varied with the cultivar and salt concentration-and decrease...

A major restriction on sand pear (Pyrus pyrifolia) production is black spot disease caused by the necrotrophic fungus Alternaria alternata. However, the pear response mechanism to A. alternata is unknown at the molecular level. Here, host responses of a resistant cultivar Cuiguan (CG) and a susceptible cultivar Sucui1 (SC1) to A. alternata infection were investigated. We found that the primary ...

The influence of cultivar and crop year on mineral components of apple fruits was investigated using three cultivars cultivated at Morioka Branch, Fruit Tree Research Station in 1980 to 1982. The mineral components measured were 9 elmemts, i.e. sodium, potassium, magnesium, calcium, iron, manganese, copper, zinc, and phosphorus. The potassium, magnesium, manganese, and phosphorus contents were ...

The effect of variation of harvest season and cultivar on the total phenolic content (TPC), total flavonoid content (TFC), HPLC-UV/DAD profile and antioxidant properties in Vaccinium ashei (Rabbiteye blueberry) leaves grown in Brazil was evaluated. The cultivars collected in December and March were Aliceblue, Powderblue, Climax, Bluegem and FloridaM. It was observed that leaves from March had t...

Sinorhizobium fredii USDA257 forms nitrogen-fixing nodules on primitive soybean (Glycine max) cultivar Peking but fails to nodulate the improved cultivar McCall. Cultivar specificity is governed by a plasmid-borne locus, nolXBTUV. By DNA sequence analysis, we have identified two open reading frames, y4yA and y4yB, immediately downstream of nolX. Northern (RNA) blot analysis indicated that the e...

Traditional rice cultivars in Sri Lanka conserve different abiotic and biotic tolerant traits but the yield of traditional rice cultivars is not as much of improved cultivars. Abiotic stress tolerance of some traditional rice cultivars were evaluated in previous studies at Faculty of Agriculture, Mapalana, Sri Lanka and this study attempted to understand the possibility of enhancing the yield a...

Quantitative and qualitative changes in total leaf soluble proteins were determined in a spring cv. Zagross and in a winter cv. Azar 2 cultivar of allohexaploid wheat (Triticum aestivum L.) exposed to 4°C for two weeks. The data obtained were used to test whether these different genotypes of wheat responded differentially to cold treatment. Seedlings were grown in a controlled growth chamber fo...

The effects of exogenously applied silicon (Si) on plant growth and the isoform patterns of NAD-dependent malate dehydrogenase (NAD-MDH, EC 1.1.1.37) and NADPdependent malic enzyme (NADP-ME, EC 1.1.1.40) were studied in two pea genotypes (cultivar Auralia and mutant line 1/220) subjected to differential Mn treatments (50, 200 and 500 μM Mn) under control conditions. The excess Mn inhibited plan...

Fusarium head blight (FHB) is a serious disease of wheat worldwide. Cultivar resistance to FHB depends on biochemical factors that confine the pathogen spread in spikes. Breeding for cultivar resistance is considered the most practical way to manage this disease. In this study, different spectroscopy and microscopy techniques were applied to discriminate resistance in wheat genotypes against FH...