2,339 research outputs found
Effects of Seed Priming on Growth and Yield of Chickpea Under Saline Soil
The present study was performed in order to assess influence of priming types and times on growth and development of Chickpea (Cicer arietinum L) in a saline soil. The seeds of Landrace Cultivar soaked by three treatment, NaCl (halopriming), Water (hydropriming), and Mannitol (osmopriming) for 8, 16, and 24 hours. Treated seeds had sown in agricultural research station (with salinity of 2.68 ds/m) of University of Mohaghegh Ardabili, Ardabil, Iran in 2007. Total dry matter accumulation between halo and hydro priming treatments had no differences until 80 days after sowing and the highest dry matter obtained from halo priming (increased with 37.9% and 16.7%, respectively relative to osmo and hydro priming). A similar Trend was observed for Leaf dry matter. Maximum leaf area (1489.7 cm2) obtained from halo priming at 94 days after sowing. Results showed an increase of 63.6% and 44.7% in yield of halo priming compared to osmo priming and hydro priming, respectively
Synthesis and studies of pyrazolo[3,4-b]piperidin-4-one derivatives
A series of isolated/fused of pyrazole, isoxazolo, pyrimidine, pyrimidine thione, spiro thiazolodine and spiro β-lactam derivatives incorporating to 4-acetyl-5-amino-3-methyl-1-phenyl-2-pyrazoline have been synthesized by different methods of chemical reactions. The structure assignments of these compounds, based on chemical and spectroscopic evidence were deduced from their IR, 1H NMR, elemental analysis and mass spectrometry
Lexical collocations in Arabic-English bilinguals\u27 writing across two proficiency levels
This chapter describes an investigation into the use of adjective+noun, verb+noun and noun+noun lexical collocations in a sample of texts from the Zayed Arabic-English Bilingual Undergraduate Corpus (ZAEBUC) (Palfreyman & Habash, 2021): one English and one Arabic text each by 20 undergraduate writers, rated at the B1 and B2 levels of the Common European Framework of References for languages (CEFR). It focuses on two of the most widely measured dimensions of collocational competence – frequency and exclusivity – using statistical data from two large online reference corpora. The chapter first discusses previous research findings in students’ collocational use as identified in other learner corpora, before describing the research methods and procedures used to identify and extract the collocations. It then goes on to present the main findings and makes comparisons both between languages and between the two different CEFR levels within each language. It also presents lists of the top 10 most frequent and most exclusive collocations from the texts that appear across all student writing within both the Arabic and English ZAEBUC sub corpora
Synthesis and studies of pyrazolo[3,4-b]pyridin-4-one derivatives
A series of isolated/fused of pyrazole, isoxazolo, pyrimidine, pyrimidine thione, spiro thiazolodine and spiro β-lactam derivatives incorporating to 4-acetyl-5-imino-3-methyl-1-phenyl-2-pyrazoline have been synthesized by different methods. The structure of chemical reactions based on chemical and spectroscopic evidence. The detailed synthesis and spectroscopic data were reported
- …