نتایج جستجو برای: چغندر لبویی beta vulgaris
تعداد نتایج: 210782 فیلتر نتایج به سال:
The insecticidal activity of five alkylfurans against the generalist insect herbivore beet armyworm, Spodoptera exigua, was examined. Two naturally occurring compounds, the avocadofurans 2-(pentadecyl)furan (1) and 2-(heptadecyl)furan (2), previously isolated from specialized avocado idioblast oil cells, and three homologues, 2-(tetradecyl)furan (3), 2-(hexadecyl)furan (4), and 2-(octadecyl)fur...
Life cycle adaptation to latitudinal and seasonal variation in photoperiod and temperature is a major determinant of evolutionary success in flowering plants. Whereas the life cycle of the dicotyledonous model species Arabidopsis thaliana is controlled by two epistatic genes, FLOWERING LOCUS C and FRIGIDA, three unrelated loci (VERNALIZATION) determine the spring and winter habits of monocotyle...
This study examined the ability of two biochars converted from anaerobically digested biomass to sorb heavy metals using a range of laboratory sorption and characterization experiments. Initial evaluation of DAWC (digested dairy waste biochar) and DWSBC (digested whole sugar beet biochar) showed that both biochars were effective in removing a mixture of four heavy metals (Pb(2 +), Cu(2+), Ni(2+...
The efficacy of transgenic cotton genotypes containing Cry1Ac, Cry1F, and Cry1Ac stacked with Cry1F (WideStrike®, Dow Agrosciences, Indianapolis, IN) were investigated during 2001-2003 against the beet armyworm, Spodoptera exigua (Hübner) (=BAW), and the fall armyworm, Spodoptera frugiperda (J. E. Smith) (=FAW), in laboratory bioassays and small experimental field plots. In all experiments, cot...
Research and Marketing Act funds have been allotted to the Western Regional Research Laboratory for work on the technology of sugar beets. Liaison between the Laboratory and industry has been established through the Committee on processing problems, appointed by the industry. This committe has met at the Laboratory to discuss subjects meriting investigation and has proposed four problems: (1) s...
Fluctuations in the natural environment introduce variability into the biological systems that exist within them. In this paper, we develop a model for the influence of random fluctuations in the environment on a simple epidemiological system. The model describes the infection of a dynamic host population by an environmentally sensitive pathogen and is based on the infection of sugar beet plant...
Three new grayanane diterpenoids, pierisoids C‒E (1-3), as well as 10 known ones (4-13), were evaluated from the flowers of Pieris formosa, which is used as an insecticide in rural areas of China. Their structures were elucidated on the basis of extensive 1D and 2D NMR spectroscopic data analyses. Significant antifeedant activity of 1, 3 and 10 against the beet armyworm (Spodoptera exigua) was ...
بهمنظور بررسی کارایی اختلاط علفکشهای دسمدیفام (7/1%)+ فنمدیفام (9/1%)+ اتوفومیست (11/2%) با نام تجاری بتانال پُروگرِس اُاِف، کلریدازون (پیرامین) و کلوپیرالید (لونترل) در کنترل علفهایهرز خرفه (Portulaca oleracea L.)، تاجریزی سیاه (Solanum nigrum L.)، تاجخروس ریشه قرمز (Amaranthus retroflexus L.) و سلمهتره (Chenipodium album L.) در مزارع چغندرقند (Beta vulgaris L.)، آزمایشی در قالب طرح بلوک...
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