The sunflower stem weevil, Cylindrocopturus adspersus (LeConte) (Coleoptera: Curculionidae), has caused yield losses across much of the western Great Plains. Little is known about the field biology of this pest. Simple prediction models, such as degree-day models, are an integral tool for development of C. adspersus management strategies. Using data collected in Colorado, Kansas, and Nebraska, ...

Low-pressure steam explosion (LPSE) combined with alkaline peroxide (AP) pretreatment was first employed to separate hemicellulose from Lespedeza stalks. The monosaccharide composition and molecular weight distribution of the obtained hemicellulose fractions were characterized in this study. The results show that the hemicellulose extracted from Lespedeza stalks consisted of xylose, glucose, ga...

Abstract Plant mechanical failure (lodging) causes significant yield loss for crops such as maize. Understanding this has relied on static measurements of plant biomechanics. In study, digital image correlation techniques are used to capture dynamic motion understand the behaviour maize stalks in presence and absence brace roots, which stem-borne aerial roots known stabilize stalks. The data sh...

Visit our website at: http://pituitary.mgh.harvard.edu On magnetic resonance imaging, some patients with clinical neuroendocrine disorders have thickened pituitary stalks, the anatomical structure which connects the hypothalamus to the pituitary (Figure 1). These disorders can be classified as neoplastic, inflammatory, or infectious in origin, although there are rare forms of congenital malform...

After corn mechanical harvest in autumn the cold region of northeast China, straw mulching leads to high soil topsoil water content and slow ground temperature rise spring sowing season, which may result a no-tillage planter being unable operate time, delayed date, poor seedling emergence quality, low grain yield. Based on problems moisture season conservation tillage with mulching, an experime...

in this study, we aimed to determine the effects of halo-priming on yield and yield components of four wheat cultivars in a saline soil. a field study was conducted in factorial based on randomized complete block design (rcbd). soil ph was 8/1 and electrical conductivity was 9 ds/m. wheat cultivars (falat, ghods, chamran and shoori4) were primed with cacl2 solutions (control, 0, 50 and 100 mm)....

Fusion of lipid bilayers proceeds via a sequence of distinct structural transformations. Its early stage involves a localized, hemifused intermediate in which the proximal but not yet the distal monolayers are connected. Whereas the so-called stalk model most successfully accounts for the properties of the hemifused intermediate, there is still uncertainty about its microscopic structure and en...

this research which aims to survey the relation between tobacco leaf yield and its components is done by using 118 varieties of tobacco in a research farm of guilan tobacco research institute. regarding to five random selections of plants, twenty three traits of each variety were evaluated. correlation between dry matter of leaf yield with plant height, stem diameter, leaf length, leaf width, l...

to study the nature and magnitude of gene effects, heritability and number of effective factors for grain yield and some yield components in rice, six generations viz., p1, p2, f1, f2, bc1 and bc2 were prepared from the crosses of shapasand × irfaon-215 and irfaon-215 × saleh and grown in a randomized complete design with three replications. results of analysis of variance showed significant di...

In order to evaluate the relationship between morphological characters in rice lines two populations at F3 generation were grown in research field of Agricultural Sciences and Natural Resource University, Sari, Iran, during 2012. Statistical analysis on important agronomic traits showed that maximum standard deviation belonged to total grain number followed by filled grains per panicle and grai...