Investigations on yield in the cereals

[1] ARNY AC, 1918, J AGR RES, V14, P9

[2] BACKHOUSE WO, J GENETICS, V7

[3] Balls William L., 1909, STUDIES EGYPTIAN COT

[4] BALLS WL, 1914, P CAMB PHIL SOC

[5] BALLS WL, PHIL T ROY SOC B, V208

[6] BALLS WL, PHIL T ROY SOC B, V206

[7] BARBER CA, MEM DEP AGR INDIAN, V2

[8] Beaven E.S., 1920, J FARMERS CLUB 6

[9] BERRY AR, 1920, J AGR SCI, V10

[10] BIFFEN RH, 1904, J AGR SCI, V1

[1] ARNY AC, 1918, J AGR RES, V14, P9

[2] BACKHOUSE WO, J GENETICS, V7

[3] Balls William L., 1909, STUDIES EGYPTIAN COT

[4] BALLS WL, 1914, P CAMB PHIL SOC

[5] BALLS WL, PHIL T ROY SOC B, V208

[6] BALLS WL, PHIL T ROY SOC B, V206

[7] BARBER CA, MEM DEP AGR INDIAN, V2

[8] Beaven E.S., 1920, J FARMERS CLUB 6

[9] BERRY AR, 1920, J AGR SCI, V10

[10] BIFFEN RH, 1904, J AGR SCI, V1