MAGNETIC-RESONANCE-IMAGING OF WATER IN FLOWER BUDS OF BLUEBERRY

被引：22

作者：

ROWLAND, LJ ^{[1
]}

LIU, DH ^{[1
]}

MILLARD, MM ^{[1
]}

LINE, MJ ^{[1
]}

机构：

[1] ARS,BELTSVILLE AGR RES CTR,ENVIRONM CHEM LAB,BELTSVILLE,MD 20705

来源：

HORTSCIENCE | 1992年 / 27卷 / 04期

关键词：

VACCINIUM-CORYMBOSUM; DORMANCY; CHILLING REQUIREMENT; NUCLEAR MAGNETIC RESONANCE (NMR);

D O I：

10.21273/HORTSCI.27.4.339

中图分类号：

S6 [园艺];

学科分类号：

0902 ;

摘要：

Dormant and chilled highbush blueberry (Vaccinium corymbosum L.) flower buds were examined by magnetic resonance imaging (MRI). T2 relaxation times of water molecules were too short to create images from flowers within buds that were dormant and had received no chilling, but they were sufficiently long to create images from buds that had their chilling requirement satisfied. To explain the change in relaxation times, we concluded that water is present in a motionally restricted form in flowers of dormant blueberry buds and in a freer form in flowers of buds after the chilling requirement has been satisfied. T2 values for chilled blueberry buds indicated that one population of water molecules with a detectable T2 time was present in flowers of chilled buds with a relaxation time of almost-equal-to 8 to 15 ms.

引用

页码：339 / 341

页数：3

共 12 条

[1]

[Anonymous], 1969, DATA REDUCTION ERROR

[2]

AUSTIN ME, 1987, HORTSCIENCE, V22, P1247

[3]

DRAPER A, 1987, HORTSCIENCE, V22, P320

[4] BOUND VERSUS FREE-WATER IN DORMANT APPLE BUDS - A THEORY FOR ENDODORMANCY [J].

FAUST, M ;

LIU, DH ;

MILLARD, MM ;

STUTTE, GW .

HORTSCIENCE, 1991, 26 (07) :887-890

[5]

FULLERTON GD, 1988, BIOMEDICAL MAGNETIC, P115

[6]

GIANFAGNA TJ, 1985, HORTSCIENCE, V20, P909

[7] H-1-NMR IMAGING ANALYSIS OF CHANGES OF FREE-WATER DISTRIBUTION IN BARLEY AND SOYBEAN SEEDS DURING MATURATION [J].

KANO, H ;

ISHIDA, N ;

KOBAYASHI, T ;

KOIZUMI, M .

JAPANESE JOURNAL OF CROP SCIENCE, 1990, 59 (03) :503-509

[8]

LANG GA, 1985, HORTSCIENCE, V20, P809

[9]

MCFALL JS, 1990, P NATL ACAD SCI USA, V87, P1203

[10]

MOULTON JE, 1978, 355 MICH STAT U AGR

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