000			01543nab a22003497a 4500
001			G28884
003			MX-TxCIM
008			121211b |||p||p||||||| |z||| |
040			_aMX-TxCIM
041	0		_aEn
043			_aZA
072		0	_aF30
090			_aREP-2935
100	1		_aFarina, M.P.W.
245	0	0	_aDifferential tolerance to soil acidity among several South African maize genotypes
260			_c1982
340			_aPrinted
500			_aTables
520			_aLow soil pH is a main factor limiting maize yields in many parts of South Africa. In 2 greenhouse experiments, 10 maize inbreds and 8 hybrids grown for 30days and given lime and P at various rates differed markedly in tolerance of lowpH or P, with inbreds B0155W and B046W and hybrids FP7W and HL 1 least tolerant and inbreds M162W and I137TN and hybrids HL2, TX24 and SR52 most tolerant. Acid tolerance was closely related to P use efficiency. High leaf Al content was generally associated with poor growth in inbred lines, but not in hybrids, but differences between the 2 groups were probably due to environmental variables. Leaf Al, P, Mn, Ca and Mg
546			_aEnglish
595			_aRPC
650	1	0	_aAcid soils
650	1	0	_aPhosphorus
650	1	0	_aSouth Africa
650	1	0	_91314 _aZea mays _gAGROVOC
650	1	0	_91134 _aGenotypes _gAGROVOC
700	1		_aChannon, P., _ecoaut.
700	1		_aGevers, H.O., _ecoaut. _9506
700	1		_aMendes, P., _ecoaut.
773	0		_tCrop Production/Gewasproduksie _n609971 _gv. 11, p. 133-134, 137-139
942			_cJA
999			_c12001 _d12001