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Original Articles

Daggrade van katoenproduserende gebiede in Suid-Afrika

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Pages 211-215 | Accepted 08 Jul 1992, Published online: 15 Jan 2013

Verwysings

  • Anoniem . 1988 . Nasionale cultivaraanbevelings vir katoen 1988/89. Katoenbladskrif D.I. Boerdery in Suid-Afrika. Dept. Landbou-ontwikkeling, Direktoraat Landbou-inligting, Pretoria.
  • Bernhardt , J. L. and Shepard , M. 1978 . Validation of a physiological day equation: Development of the Mexican Bean Beetle on snap beans and soybeans . Environ. Ent. , 7 : 131 – 135 .
  • Bilbro , J. D. 1975 . “ Relationship of air temperatures to first- bloom dates of cotton. ” . In Texas Agric. Exp. Sta. MP-1186.
  • Burke , J. J. , Hatfield , J. L. and Mahan , J. R. 1989 . Quantifying thermal stress in cotton through the thermal kinetic window. Proc. Beltwide cotton Prod. Res. Conf. Nashville. National Cotton Council of America, Memphis, Tennessee, USA.
  • Dippenaar , M. C. and Human , J. J. 1991 . Minimum nagtem- peratuur en groeiseisoenlengte van katoenproduserendegebiede in Suid-Afrika . S. Afr. Tydskr. Plant Grond. , 8 : 78 – 84 .
  • Ehlers , J. H. and Van Heerden , H. G. 1976 . Agroklima- tologiese behoeftes: Gebiede waar katoen verbou kan word. Katoenbladskrif C.3. Boerdery in Suid-Afrika. Dept. Landbou- ontwikkeling, Direktoraat Landbouinligting, Pretoria.
  • Fry , K. E. 1983 . “ Heat-unit calculations in cotton crop and insect models. ” . In U.S.D.A. Agric. Res. Ser. Adv. Agric. Tech. AAT-W- 23.
  • Hesketh , J. D. and Low , A. 1968 . Effect of temperature on components of yield and fibre quality of cotton varieties of diverse origin . Cotton Gr. Rev. , : 243 – 246 .
  • Human , N. B. 1986 . Delimitation of areas climatically suitable for six irrigated subtropical crops in the eastern Transvaal. M.Sc.(Agric) thesis, University of the Orange Free State, Bloemfontein.
  • Lindsey , A. A. and Newman , J. E. 1956 . Use of official weather data in springtime—temperature analysis of an Indiana phenological record . Ecology , 37 : 812 – 823 .
  • Quisenberry , J. E. and Kohel , R. J. 1975 . Growth and development of fibre and seed in upland cotton . Crop Sci. , 15 : 463 – 467 .
  • Sevacherian , V. , Stern , V. M. and Mueller , A. J. 1977 . Heat accumulation for timing Lygus control measures in a safflower-cotton complex . J. Econ. Entomol. , 70 : 399 – 402 .
  • Sevacherian , V. and El-Zik , K. M. 1983 . A slide rule for cotton crop and insect management. Cooperative Ext. Div. Agric. Sci., Univ. California, Leaflet 21361.
  • Steyn , A. G.W. , Smit , C. F. and Du Toit , S. H.C. 1984 . Moderne statistiek vir die praktyk. Pretoria : Van Schaik . 3de uitgawe. J.L
  • Van Ark , H. 1981 . Eenvoudige biometriese tegnieke en proefontwerpe met spesiale verwysing na entomologiese navorsing. Wetenskaplike pamflet No. 396. Afdeling Landbou-inligting, Dept. Landbou en Watervoorsiening. Die Staatsdrukker, Pretoria.
  • Wang , J. Y. 1960 . A critique of the heat unit approach to plant response studies . Ecology , 41 : 785 – 790 .
  • Young , J. H. , Willson , L. J. and Stabala , M. A. 1983 . Temperature—its effect on cotton and cotton insects. 831 Agric. Exp. Sta. Div. Agric. Oklahoma State Univ. Res. Rep

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