in order to determine the critical period of weed control (cpwc), yield and yield components of black seed (nigella sativa l.) affected by weed competition and control periods, a field experiment was conducted based on randomized complete block design with 12 treatments and three replications at the agricultural research station, ferdowsi university of mashhad, iran in 2012. two sets of weed-in...

Information on the impact of climate change growth weed species and their sensitivity to herbicides could help establish an efficient management strategy. Due excessive use acetolactate synthase (ALS)-inhibitor herbicides, resistance those is increasing globally. It is, thus, crucial find out whether efficacy these will in future due increase temperatures carbon dioxide concentration. Therefore...

Field and greenhouse studies were conducted to investigate the compatibility of MSMA in a tank mixture with glyphosate or glufosinate for broadleaf and grass weed control. Glyphosate, glufosinate, and MSMA were evaluated at 0.53, 13, and 23 rates, with 13 rates of 0.84 kg ae/ha, 0.5 kg ai/ha, and 2.2 kg ai/ha, respectively. Glyphosate and glufosinate provided similar levels of control for most ...

The potential application of in vitro embryo production (IVP) technologies partially depends on the development of reliable, repeatable and efficient techniques for recovery of oocytes from genetically valuable animals. While oocyte collection from living animals has been widely used in the bovine species, its exploitation in sheep has been limited (Galli et al., 2001). Most work reported in sh...

Natural products are one of the resources for discovering novel pesticide leads. Here, by molecular hybridization between natural enamino diketone skeleton and reported herbicide lead compound I, a series 3-(1-aminoethylidene)-6-methyl-2H-pyran-2,4(3H)-dione derivatives (APD) were rationally designed, synthesized tested herbicidal activity in greenhouse. The bioassay results showed that most ta...