PHYSIOLOGICAL-STUDIES ON SALINITY AND NITROGEN INTERACTION IN ALFALFA PLANTS .3. NITRATE REDUCTASE-ACTIVITY

被引：13
|
作者：
KHAN, MG [1 ]
SILBERBUSH, M [1 ]
LIPS, SH [1 ]
机构：
[1] BEN GURION UNIV NEGEV, JACOB BLAUSTEIN INST DESERT RES, DESERT AGROBIOL RES CTR, PLANT ADAPTAT UNIT, IL-84993 SEDE BOQER, ISRAEL
来源：
JOURNAL OF PLANT NUTRITION | 1995年 / 18卷 / 11期
关键词：
D O I：
10.1080/01904169509365079
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Nitrate reductase activity (NRA) was determined to investigate the effect of salinity and nitrogen (N) interactions on alfalfa [Medicago sativa (L) cv. Gilboa] during its vegetative growth. Increasing levels of sodium chloride (NaCl) (0, 30, 65, and 100 mM) decreased NRA in both plant parts, i.e., root and leaf, however to a lesser extent in leaves. The inclusion of N either as nitrate (NO3) or ammonium (NH4) (0, 3, and 6 mM) to the nutrient medium resulted in a substantial enhancement of NR activity in salinized and non-salinized plants as well.
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页码：2495 / 2500
页数：6
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