共 50 条
- [13] FLINT WP, 1923, ILL AGR EXPT STA B, V243
- [14] FORBES SA, 1905, STATE ENT, V23, P123
- [15] GERNERT WB, 1917, CORN HYBRIDS SCI, V46, P390
- [16] HASE A, 1929, INT CORN BORER INVES, P77
- [17] Hayes WP, 1925, J AGRIC RES, V31, P0575
- [19] HINDS WE, 1914, ALA AGR EXPT STA B, V176, P49
- [20] HOLBERT J. R., 1935, Iowa State College Journal of Science, V9, P413