Quantification of soil carbon (C) cycling as influenced by management practices is needed for C sequestration and soil quality improvement. We evaluated the 10-yr effects of tillage, cropping system, and N source on crop residue and soil C fractions at 0- to 20-cm depth in Decatur silt loam (clayey, kaolinitic, thermic, Typic Paleudults) in northern Alabama, USA. Treatments were incomplete fact...

Antifreeze proteins are found in a wide range of overwintering plants where they inhibit the growth and recrystallization of ice that forms in intercellular spaces. Unlike antifreeze proteins found in fish and insects, plant antifreeze proteins have multiple, hydrophilic ice-binding domains. Surprisingly, antifreeze proteins from plants are homologous to pathogenesis-related proteins and also p...

Meiotic pairing preferences between identical and homologous but not identical chromosomes were analyzed in spontaneous tetraploid/diploid chimeras of three male grasshoppers (Eyprepocnemis plorans) whose chromosome pair 11 were heterozygous for C-banding pattern and in four induced tetraploid/diploid chimaeral rye plants (Secale cereale) heterozygous for telomeric heterochromatin C-bands in ch...

In Turkey, the genus Chrysophthalmum Sch.Bip. ex Walp. is represented by 3 taxa, namely montanum (DC.) Boiss., C. dichotomum Boiss. & Heldr. and gueneri Aytaç Anderb.. herbaceous plant that grows on rock cracks limestone cliffs, in eastern southeastern regions of Turkey. this study, pollen cypsela morphology species was investigated with light microscope (LM) scanning electron (SEM). Furthe...

Triticale (X Triticosecale Wittmack) is an artificial hybrid of wheat (Triticum sp.) and rye (Secale sp.) first bred in laboratories during the late 19 century. In little more than a century, triticale has developed from a biological curiosity to a practical crop. Plant breeders have made efforts to overcome main problems of triticale: preharvest sprouting, susceptibility to diseases, sensitivi...

ABSTRACT Cyclic hydroxamic acids are secondary metabolites found in the family Poaceae and have been implicated in the allelopathy of rye (Secale cereale). The toxicity of these compounds against plant-parasitic nematodes is unknown. DIBOA (2,4-dihydroxy-(2H)-1,4-benzoxazin-3(4H)-one), DIMBOA (2,4-hydroxy-7-methoxy-(2H)-1,4-benzoxazin-3(4H)-one), and their degradation products BOA (benzoxazolin...