black chaff

[′blak ¦chaf]

(plant pathology)

A bacterial disease of wheat caused by Xanthomonas translucens undulosa and characterized by dark, longitudinal stripes on the chaff.

References in periodicals archive ?

Sr2/Yr30, Lr34/Yr18, Lr46/Yr29 on the basis of phenotypic markers like pseudo black chaff (Pbc) and leaf tip necrosis (Ltn1 and Ltn2) were conducted in augmented design during the years 2010-11 and 2011-12 at Wheat Research Institute, Faisalabad and Summar Agricultural Research Station, Kaghan.

leaf tip necrosis-1 (Ltn-1), leaf tip necrosis-2 (Ltn-2) and pseudo black chaff. This research work was conducted at the Wheat Research Institute, Faisalabad, Ayub Agricultural Research Institute Faisalabad during the year 2011-12.

pseudo black chaff for Sr2/Yr30, leaf tip necrosis (Ltn-1) for Lr34/Yr18.

Phenotypic characterization of 220 selected lines through markers applications: Among tested entries, 67 entries showed leaf tip necrosis-1 (Ltn-1), 23 entries showed leaf tip necrosis-2 (Ltn-2) and 62 entries showed pseudo black chaff (Table 4).

PHENOTYPIC CHARACTERIZATION OF WHEAT SELECTED LINES FOR RESISTANCE AGAINST LEAF STRIPE AND STEM RUST THROUGH PHENOTYPIC MARKERS APPLICATION

When she looked out the window, the sky was filled with swirling black chaff.

The Catacombs

Rusty resembles Langdon in plant type with the exception that Rusty has black chaff conferred by the Bg gene on chromosome 1A.