ISSN:
1573-5109
Schlagwort(e):
Acacia nilotica
;
provenances
;
nitrogen fixing ability
;
Chillum jar technique
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
Notizen:
Summary Differences in nitrogen fixing abilities of 18 provenances (16 from India, 2 from Israel) ofAcacia nilotica (L.) Willd. ex Del. were assessed in sterilized sand in chillum jars and unsterilized field soil in earthen pots, at Hisar (29°10′N lat., 75°46′E long., 215 m alt.), India. There were significant differences in growth and amount of nitrogen fixed and stored in plants (P 〈 0.01) between provenances. The values ranged from 10 to 34 mg N/plant in sterilized sand, and 11 to 44 mg N/plant in unsterilized soil. Maximum nodulation and nitrogen fixation occurred in Sirsa provenance followed by Pali, Coimbatore and Chandigarh provenances. Medinipur, Hisar (local provenance) and two exotics fixed significantly (P 〈 0.01) lower amounts of nitrogen. These differences attributed to genetic variability among provenances ofAcacia nilotica. There were strong and positive correlations between number and mass of nodules with total nitrogen fixed in the plants. The results are important from the point of view of exploiting the genetical variability inA. nilotica in amelioration of wastelands.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02310679
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