000			03170naa a22004097a 4500
001			G65936
003			MX-TxCIM
005			20240919021051.0
008			220705s1997 mx ||||| |||| 10| 0 eng d
020			_a968-6923-93-4
040			_aMX-TxCIM
041			_aeng
072		0	_aF01
072		0	_aF30
090			_aCIS-3685
100	1		_aBarreto, H. _95574
245	1	4	_aThe alpha lattice design in plant breeding and agronomy : _bgeneration and analysis
260			_aMexico, DF (Mexico) _bCIMMYT : _c1997.
340			_aComputer File
520			_aThe use of incomplete block designs has gained wider acceptability among researchers in developing countries as a tool to control random variation, particularly for evaluation trials of many genotypes. In the CIMMYT Maize Program, alpha (0,1) lattice designs have been used since 1986 for evaluating groups of more than 200 genotypes, generally planted in single row plots. Relative efficiencies of 1.0-2.0 have been observed, but the use of the alpha-lattice designs has thus far been restricted mainly to genotype evaluation trials. There is little information on the use of these designs in agronomic experiments, although they could be useful where there is no factorial type relationship among treatments, where the number of treatments is relatively large (e.g., > 16), and where soil heterogeneity at the test site is high. Among the most important constraints to the use of these designs are: the lack of an appropriate language-independent software interface for entering and transforming data files, the difficulty of handling information in a common format, and the lack of integration with other analytical tools (graphing applications, selection algorithms, regression, etc.). A software module in English and Spanish that facilitates and integrates the use of the ALPHANAL and LATANOVA programs (Scottish Agricultural Statistics Service, Edinburgh)for the design and analysis of alpha (0,1) lattices is described. The software also allows for the processing of lattice-adjusted means using selection software developed by the CIMMYT Maize Program. This type of easy-to-use software offers an additional resource for improving the efficiency of agricultural research in national agricultural programs in developing countries.
536			_aGenetic Resources Program
546			_aText in English
591			_a9802|AGRIS 9702|anterior|R97-98PROCE|FINAL9798
594			_aCCJL01
650		7	_aAgronomic characters _2AGROVOC _91008
650		7	_aPlant breeding _gAGROVOC _2 _91203
650		7	_927975 _aLattice design _2AGROVOC
650		7	_91173 _aMaize _2AGROVOC
650		7	_94432 _aExperimentation _2AGROVOC
653	0		_aCIMMYT
700	1		_aEdmeades, G.O. _95520
700	1		_aChapman, S. _9458
700	1		_aCrossa, J. _gGenetic Resources Program _8CCJL01 _959
711	2		_4El Batan, Tex. (Mexico); 25- 29 Mar 1996 _927976 _aDeveloping Drought- and Low N-Tolerant Maize _d(March 25-29, 1996 : _cEl Batan, Tex., Mexico)
773			_dMexico : CIMMYT, 1997. _gp. 544-551 _tDeveloping Drought- and Low N-Tolerant Maize. Proceedings of a Symposium _wG64620 _z968-6923-93-4
942			_cPRO _2ddc _n0
999			_c3770 _d3770