charlock

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charlock:

see mustardmustard,
common name for the Cruciferae, or Brassicaceae, a large family chiefly of herbs of north temperate regions. The easily distinguished flowers of the Cruciferae have four petals arranged diagonally ("cruciform") and alternating with the four sepals.
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charlock

1. a weedy Eurasian plant, Sinapis arvensis (or Brassica kaber), with hairy stems and foliage and yellow flowers: family: Brassicaceae (crucifers)
2. white charlock a related plant, Raphanus raphanistrum, with yellow, mauve, or white flowers and podlike fruits
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Spraying method: Supernatant of fungal fermentation broth and partially purified mixture protein in the volume of 50 ul/cm2, were sprayed on Sinapis arvensis and Triticum aestivum with 3 replications, in sterile conditions and with minimal physical stress.
The effects of phytotoxins on Sinapis arvensis for Primary screening: In this study, four strains of the pea plant tissue were extracted and purified.
The effects of supernatant and the condensed solution of phytotoxins on Sinapis arvensis: According to the observed macroscopic effects in the two-leaf stage of Sinapis arvensis, the necrosis symptoms had a slow rate from the first day to two days after inoculation, but showed high rate during the other days and approximately 60% of leaf surface was necrosed on the fifth day.
Average length of the seedling in 4-leaf stage was observed 6.1 cm and 9.8 cm before spray in Sinapis arvensis and wheat, and after 6 days after spraying the supernatant, the average length of seedling was observed 11.2 cm which showed 12.5 % increase in the growth toward before spraying and according to the Mann-Whitney test, there was no significant difference between the test and control (p<0/05).
who stated that in the presence of wild mustard, Sinapis arvensis L., the harvest index of wheat decreased by increasing nitrogen levels and among the nitrogen levels (100, 150 and 225 kg [ha.sup.-1]) the maximum of HI loss was observed in the highest level of nitrogen application.
They concluded that canola, Brassica napus L., wild mustard, Sinapis arvensis L.
Investigation of amount and timing of nitrogen application effects on wild mustard (Sinapis arvensis) impact on yield and yield components of winter wheat.
(2004) concluded that increasing nitrogen level from 150 to 225 kg [ha.sup.-1] increased the spike number loss of wheat, Triticum aestivum L., in the presence of Sinapis arvensis. Interference effects of S.
[14] noted that there was a negative correlation between wild mustard, Sinapis arvensis L., density and wheat grain yield.
Economic thresholds of Sinapis arvensis (wild mustard) in winter wheat fields.
Effects of lead and cadmium on seed germination, seedling growth and antioxidant enzymes activities of mustard (Sinapis arvensis L.).
Effect of competition between wheat (Triticum aestivum) and wild mustard (Sinapis arvensis) on dry matter attribution.