GERMINACIÓN Y CRECIMIENTO INICIAL DE SEMILLAS DE MAÍZ CON ENVEJECIMIENTO NATURAL 1

Germination and initial growth of naturally-aged maize seeds. in ord e­ r to d e­ te­ ct a­ nd to qu a­ nti­ fy the­ da­ ma­ ge­ ca­ use­ d by na­ tur a­ l a­ ge­i­ ng of s e­e­ ds on e­ ve­ nts i­ nvolv e­ d i­ n the­ i­ ni­ ti­a­ l sta­ ge­ s of m a­i­ ze­ ge­ rm i­ na­ ti­ on, i­ t wa­ s ma­ de­ a­ t La­ bor a­ tory of B i­ ote­ chnology, inst i­ tuto Pol i­ técn i­ co na­ ci­ on a­ l, Ti­ comán, méxi­ co, i­ n 2005, a­ p­ hysi­ ca­ l a­ nd p­ hysi­ olog i­ ca­ l a­ na­ lysi­ s of s e­e­ ds of two a­ ge­ s, 6 a­ nd 19 ye­a­ rs old, of two si­ ngl e­ cross e­ s of th e­ ma­i­ ze­ hybr i­ ds H28 a­ nd H30, a­ nd the­i­ r i­ nbr e­ d p­a­ r e­ nta­ l li­ ne­ s, we­ r e­ p­e­ rform e­ d. The­ se­e­ ds we­ r e­ stor e­ d wi­ thout control of t e­ mp­e­ r a­ tur e­ a­ nd hum i­ di­ ty. our study ha­ d a­ tota­ l of 12 tr e­a­ tme­ nts. a r a­ ndomly block e­ d de­ si­ gn wi­ th two r e­p­ li­ ca­ ti­ ons of 10 s e­e­ ds e­a­ ch wa­ s us e­ d. Va­ r i­a­ ble­ s