BACKGROUND AND AIMS Both nutrient availability and defoliation affect the carbon-nutrient balance in plants, which in turn influences biomass allocation (e.g. shoot-to-root ratio) and leaf chemical composition (concentration of nitrogen and secondary compounds). In this study it is questioned whether defoliation alters biomass allocation and chemical defence in a similar fashion to the response...

A stack of 66 historical Indian palm leaves, which were produced in the 8 Century AD, is kept in the Museum Rietberg, Zuerich. On the leaves, there are figures and a long poem, inscribed in ancient Sanskrit language and narrating a love story. The original sequence of the leaves was lost long time ago. At one point in history, the stack of the leaves was damaged by a mouse biting pieces off. On...

Leaf size and shape play important roles in agronomic traits, such as yield, quality and stress responses. Wide variations in leaf morphological traits exist in cultivated varieties of many plant species. By now, the genetics of leaf shape and size have not been characterized in Brassica napus. In this study, a population of 172 recombinant inbred lines (RILs) was used for quantitative trait lo...

Reflectance, transmittance and absorptance spectral of "normal" and six types of nutrient-deficient (N, P, K, S, Mg, and Ca) maize (Zea mays L.) leaves were analyzed at 30 selected wavelengths from 500~2600 nm. The analysis of variance showed significant differences in reflectance, transmittance and absorptance in the visible wavelengths among leaf numbers 3, 4, and 5, among the seven treatment...

Brakke, M. K., Skopp, R. N., and Lane, L. C. 1990. Degradation of wheat streak mosaic virus capsid protein during leaf senescence. Phytopathology 80:1401-1405. Wheat streak mosaicvirwscapsid protein degraded in vivo by proteolysis rnented slightly more slowly than those with 45 kDa protein. Antiserum as leaves senesced. The capsid protein of virus purified from young systemto intact virions, co...

three separate experiments were conducted to investigate micropropagation of four pear cultivars. in the first trial, the effect of four cultural media (ms, ms/2, msn/2 and mql) were compared on such traits as shoot length, shoot number and color of leaf. from among the media, ms/2 and msn/2 resulted in the most shoot proliferation and the longest shoots respectively. ms medium produced green d...

Total, fluorescent, and pectolytic epiphytic bacterial population sizes were quantified on leaves of different age groups of broad-leaved endive during field cultivation from leaf emergence until harvest. Greater bacterial population densities (log(inf10) CFU per square centimeter) were observed on outer leaves than on inner leaves of the plants throughout the growing season. These differences ...

Achillea lanulosa has complex, highly dissected leaves that vary in shape and size along an altitudinal gradient. Plants from a high and an intermediate altitude population were clonally replicated and grown in a controlled environment at warm and cool conditions under bright light. There were genetic differences among populations and among individuals within populations in leaf size and shape....

The study was carried out to validate the effect of different flush induction protocol on carabao mango which conducted in Alion, Mariveles, Bataan, Philippines with following treatments: no intervention (T1), pruning only (T2), urea applied soil (T3), spray (T4), irrigation (T5), and complete (T6). Results revealed that providing water hasten mango. (T6) significantly had highest flushing perc...

BACKGROUND AND AIMS Hydrophytes generally exhibit highly acquisitive leaf economics. However, a range of growth forms is evident, from small, free-floating and rapidly growing Lemniden to large, broad-leaved Nymphaeiden, denoting variability in adaptive strategies. Traits used to classify adaptive strategies in terrestrial species, such as canopy height, are not applicable to hydrophytes. We hy...