000			02894nab a22003617a 4500
001			67819
003			MX-TxCIM
005			20250214142022.0
008			240813s1979 -us|||p|op||| 00| 0 eng d
022			_a0011-183X
022			_a1435-0653 (Online)
024	8		_ahttps://doi.org/10.2135/cropsci1979.0011183X001900030017x
040			_aMX-TxCIM
041			_aeng
100	1		_aBaenziger, P.S. _9423
245			_aDry matter accumulation in maize hybrids near isogenic for endosperm mutants conditioning protein quality
260			_aUnited States of America : _bJohn Wiley & Sons, _c1979.
500			_aPeer review
520			_aSix near isogenic genotypes of four maize (Zea mays L.) single-cross hybrids were grown in a randomized complete block design with a split-split-plot arrangement of treatments with four replications. The genotypes were sugary-2 (su2), waxy (wx) and opaque-2 (o2), the double mutant combinations [sugary-2 opaque-2 (su2 02) and waxy opaque-2 (wx o2)], and the normal counterpart. The plants in each plot were sib-pollinated twice by hand to insure full seed sets. Harvests were made at 7-day intervals beginning 10 days after pollination (DAP) and continuing through 73 DAP. The purpose of this experiment was to determine the effect of the six genotypes on kernel dry matter accumulation (grain weight), cob weight, and grain moisture percentage during the grain filling period. On the average su2, o2, wx o2, and su2 02 accumulated 13, 18, 20, and 25% less grain weight than normal. The reduction in kernel dry matter accumulation was the result of shorter grain filling periods and less rapid rates of grain filling during the reproductive phase. Waxy accumulated 4% less grain weight than normal. The lower grain weight accumulation of wx was because of a less rapid rate of grain filling and not because of a shorter grain filling period. Opaque-2 and su2 o2 showed a 9 and 11% reduction of cob weight, respectively, compared to the normal hybrids throughout development. Waxy, wx o2, and su2 hybrids were similar to normal in cob weight accumulations. All of the genotypes retained a higher moisture percent during development than their normal counterpart hybrids. However, on the average, 02 was not significantly different in moisture than normal at 73 DAP.
546			_aText in English
650		7	_aZea mays _2AGROVOC _91314
650		7	_aProtein content _2AGROVOC _91222
650		7	_aDry matter _2AGROVOC _96005
650		7	_aHybrids _2AGROVOC _91151
650		7	_aEndosperm _2AGROVOC _91097
650		7	_aMutants _2AGROVOC _94079
650		7	_aProtein quality _2AGROVOC _91223
650		7	_aMaize _2AGROVOC _91173
650		7	_aSeed filling _2AGROVOC _91911
700	1		_aGlover, D.V. _933927
773	0		_dUnited States of America : John Wiley & Sons, 1979. _gv. 19, no. 3, p. 345-349 _tCrop Science _wG444244 _x0011-183X
942			_2ddc _cJA _n0
999			_c67819 _d67811