| 000 | 03470nab a22006617a 4500 | ||
|---|---|---|---|
| 001 | G73684 | ||
| 003 | MX-TxCIM | ||
| 005 | 20211006075429.0 | ||
| 008 | 121211b |||p||p||||||| |z||| | | ||
| 022 | 0 | _a0721-7595 | |
| 040 | _aMX-TxCIM | ||
| 082 | 0 | 4 | _a1999-051636 |
| 100 | 1 | _aTodorov, D. | |
| 245 | 0 | 0 | _aEffect of putrescine, 4-PU-30, and abscisic acid on maize plants grown under normal, drought, and rewatering conditions |
| 260 | _c1998 | ||
| 340 | _aPrinted | ||
| 500 | _areferences US (DNAL QK745.J6) | ||
| 520 | _aThe experiments were carried out with maize (Zea mays L.) seedlings, hybrid Kneja 530, grown hydroponically in a growth chamber. Twelve-day-old plants were foliar treated with putrescine, N1-(2-chloro-4-pyridyl)-N2-phenylurea (4-PU-30), and abscisic acid (ABA) at concentrations of 10-5 M. Twenty-four hours later the plants were subjected to a water deficit program, induced by 15% polyethylene glycol (PEG; molecular weight, 6,000). Three days after drought stress half of the plants were transferred to nutrient solution for the next 3 days. The effects of the water shortage, rewatering, and plant growth regulator (PGR) treatment on the fresh and dry weights, leaf pigment content, proline level, relative water content (RWC), transpiration rate, activities of catalase and guaiacol peroxidase, hydrogen peroxide content, and level of the products of lipid peroxidation were studied. It was established that the application of PGRs alleviated to some extent the plant damage provoked by PEG stress. At the end of the water shortage program the plants treated with these PGRs possessed higher fresh weight than drought-subjected control seedlings. It was found also that putrescine increased the dry weight of plants. Under drought, the RWC and transpiration rate of seedlings declined, but PGR treatment reduced these effects. The accumulation of free proline, malondialdehyde, and hydrogen peroxide was prevented in PGR-treated plants compared with the water stress control. The results provided further information about the influence of putrescine, 4-PU-30, and ABA on maize plants grown under normal, drought, and rewatering conditions | ||
| 546 | _aEnglish | ||
| 595 | _aAC | ||
| 650 | 1 | 0 | _aAmides |
| 650 | 1 | 0 | _aAmines |
| 650 | 1 | 0 | _aAmino acids |
| 650 | 1 | 0 | _aAmino compounds |
| 650 | 1 | 0 | _aAnalytical methods |
| 650 | 1 | 0 | _aAromatic compounds |
| 650 | 1 | 0 | _aBiogenic amines |
| 650 | 1 | 0 | _aBiological development |
| 650 | 1 | 0 | _aChemical reactions |
| 650 | 1 | 0 | _aChemicophysical properties |
| 650 | 1 | 0 | _aDevelopmental stages |
| 650 | 1 | 0 | _aEnzymes |
| 650 | 1 | 0 | _aGramineae |
| 650 | 1 | 0 | _aGrowth inhibitors |
| 650 | 1 | 0 | _aisoprenoids |
| 650 | 1 | 0 | _aOxidation |
| 650 | 1 | 0 | _aOxides |
| 650 | 1 | 0 | _aOxidoreductases |
| 650 | 1 | 0 | _aPeroxides |
| 650 | 1 | 0 | _aPhysiological functions |
| 650 | 1 | 7 |
_aPlant anatomy _gAGROVOC _2 _91202 |
| 650 | 1 | 0 | _aPlant developmental stages |
| 650 | 1 | 0 | _aPlant growth substances |
| 650 | 1 | 0 |
_aPlant physiology _91210 |
| 650 | 1 | 0 | _aPlant physiology and biochemistry |
| 650 | 1 | 0 | _aPlant vegetative organs |
| 650 | 1 | 0 | _aPolymers |
| 650 | 1 | 0 | _aProximate composition |
| 650 | 1 | 0 | _aSesquiterpenoids |
| 650 | 1 | 0 | _aTerpenoids |
| 650 | 1 | 0 | _aTherapy |
| 650 | 1 | 0 | _aWeather hazards |
| 650 | 1 | 0 | _aZea |
| 700 | 1 |
_aAlexieva, V., _ecoaut. |
|
| 700 | 1 |
_aKaranov, E., _ecoaut. |
|
| 773 | 0 | _tJournal of plant growth regulation (USA). (Aut 1998). v. 17(4) p. 197-203 | |
| 942 | _cJA | ||
| 999 |
_c21589 _d21589 |
||