000 02354nab a22003857a 4500
001 G57027
003 MX-TxCIM
005 20240919021133.0
008 231016s1974 xxk|||p|op||| 00| 0 eng d
022 _a0021-8596
022 _a1469-5146 (Online)
024 8 _ahttps://doi.org/10.1017/S0021859600051881
040 _aMX-TxCIM
041 0 _aeng
072 0 _aF30
082 0 4 _a75-016179
100 1 _aGoldsworthy, P.R.
_931898
245 0 0 _aGrowth and yield of highland maize in Mexico
260 _aUnited Kingdom :
_bCambridge University Press,
_c1974.
340 _aPrinted
500 _a7 ref
500 _aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0021-8596
500 _aPeer review
520 _aThe growth and yield of five highland varieties of tropical maize were studied. Grain yields were between 4-7 and 8-8 t/ha. Crop growth rates (C) increased to a maximum of between 25 and 35 g/m2/day at silking and then declined. Grain growth rates (maximum|21 g/m2/day) exceeded current C during most of the grain-filling period. After silking, when C exceeded grain growth rate, dry matter accumulated in the stem|and husk, resulting in an increase of from 200 to 600 g/m2. Later, as grain growth rate increased and exceeded current C, some of this accumulated material was incorporated|into the grain, and stem weight decreased. A comparison of the dry weight changes after flowering in these varieties with those reported for a hybrid that yielded 12 t grain/ha indicates that the smaller yield of the Mexican varieties was associated with smaller grain growth rates and the incorporation into the grain of a smaller fraction of the dry weight produced after flowering. These results suggest that the capacity of the grain 'sink' to utilize assimilates limited yields in the tropical varieties.
546 _aText in English
591 _aCOMOD
650 7 _aMaize
_2AGROVOC
_91173
650 7 _aPlant breeding
_gAGROVOC
_2
_91203
650 0 _921209
_aPlant growth
_2AGROVOC
650 7 _91313
_aYields
_2AGROVOC
651 7 _2AGROVOC
_91318
_aMexico
700 1 _aColegrove, M.
_931899
773 0 _tThe Journal of Agricultural Science
_n75-016179
_gv. 83, no. 2, p. 213-221
_dCambridge University Press, 1974.
_wG444500
_x0021-8596
942 _cJA
_2ddc
_n0
999 _c16892
_d16892