June 1971

Cover: Magnetic honeybee trap to right allows much greater accuracy in the evaluation of honeybee pollination activity. Bees are tagged with a tiny metal disc, allowing recapture at the hive entrnnce

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California Agriculture, June 1971

Volume 25, Number 6

research articles

A new tagging and recapture method for evaluating honeybee pollination activity
by Norman E. Gary
pp4-6, doi#10.3733/ca.v025n06p4
Summary | Expanded Abstract | PDF

Response of lettuce to soil fumigation for nematode control in central coastal districts
by N. C. Welch , W. H. Hart , B. Lear
pp6-7, doi#10.3733/ca.v025n06p6
Summary | Expanded Abstract | PDF

Petioles tell the nitrogen story for strawberries
by Albert Ulrich , William W. Allen
pp8, doi#10.3733/ca.v025n06p8
Summary | Expanded Abstract | PDF

INIA 66R …a new high-yielding wheat selection
by C. O. Qualset , J. D. Prato , J. A. Rupert , H. E. Vogt , W. H. Isom , W. F. Lehman
pp9, doi#10.3733/ca.v025n06p9
Summary | Expanded Abstract | PDF

Barriers to outcrossing in alfalfa seed production …flowering alfalfa …field size …bare ground
by L. G. Jones , J. T. Feather , V. L. Marble , R. B. Ball
pp10-12, doi#10.3733/ca.v025n06p10
Summary | Expanded Abstract | PDF

Oblonga …a clonal olive rootstock resistant to verticillium wilt
by Hudson Hartmann , W. C. Schnathorst , John Whisler
pp12-15, doi#10.3733/ca.v025n06p12
Summary | Expanded Abstract | PDF

editorial, news, letters & science briefs

EDITORIAL: In agricultural information
by Vernon T. Stoutemyer
pp2, doi#10.3733/ca.v025n06p2
PDF

General Information

Wheat-oats genetics research at U. C. Riverside
Editors
pp3, doi#10.3733/ca.v025n06p3
PDF