Rice panicle blanking
AuthorsMaurice L. Peterson
J. N. Rutger
D. W. Henderson
Shiow Shong Lin
Authors AffiliationsMaurice L. Peterson is Professor of Agronomy., Plant Science Research Division, Agricultural Research Service, U. S. Department of Agriculture; J. N. Rutger is Research Geneticist, Plant Science Research Division, Agricultural Research Service, U. S. Department of Agriculture; D. W. Henderson is Professor of Water Science and Engineering, University of California, Davis; Shiow Shong Lin is a Graduate Student, University of California, Davis.
Hilgardia 26(4):3-5. DOI:10.3733/ca.v026n04p3. April 1972.
Panicle blanking, or the occurrence of “empty” kernels” on the rice panicle, may have caused yield losses of up to 12.5 per cent in 40 rice fields grown for certification in 1971. Although varieties differ in susceptibility to blanking, causes other than resistance appear to be responsible for the range in panicle blanking from 3.81 to 25.46% in different fields. Low night temperatures during pollen formation are believed to be the major cause of blanking. Pollen formation occurs during a 5-day period about 10 to 16 days before heading. Further studies aimed at finding solutions to this problem are in progress.
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