Genetic variability in symbiotic nitrogen fixation between provenances ofAcacia nilotica (L.) Willd. ex Del.

Beniwal, R. S.; Toky, O. P.; Sharma, Parveen

doi:10.1007/bf02310679

Cited by 9 publications

(8 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Seed sources RWC, MV-3 and NV-4 were found more compatible with Rhizobium inoculation. The results are supported by those obtained in A. lebbek (Lal and Khanna, 1993) and A. nilotica (Beniwal et al, 1995). Dhar et al (1989) observed in significant increase in the total dry matter in L. leucocephala when inoculated with different strains of Rhizobium.…”

Section: Root-shoot Ratiosupporting

confidence: 77%

Effect of rhizobium inoculation on juvenile growth ofProsopis cineraria (L.) Druce at nursery stage

Kumari

Bardhwaj

Dhillon

et al. 2016

IJARe

View full text Add to dashboard Cite

Prosopis cineraria (L.) Druce is a large genus comprising of more than 44 species and found distributed throughout the arid and semiarid region of world. Differences on growth parameters of 20 different seeds sources of P. cineraria were assessed in polyethylene bags under nursery conditions at Hisar. These sources were inoculated with three Rhizobium strain viz., VRF-76, Ca-181 and Mf-23a. The seeds of P. cinerearia collected from different seed sources had considerable variation for different growth parameters. All the tested Rhizobium strains responded for different parameters but strains Ca-181 was found significantly superior for majority of parameters. It was followed by Rhizobium Mf-=23a. However the VRF-76 strain was least effective. The significantly highest collar diameter was recorded in seed source RWC inoculated with strain Ca-181. Maximum root length (47.3 cm) was recorded in strains Ca-181 inoculated seed source (NNV-3) whereas a significant reduced root length was recorded in VRf-76 inoculated seed sources. Seed sources NNV-2, MV-3 NNV-3 and RTG were found having higher mean root length. Inoculations with either of Rhizobium strains significantly increase the shoot length in comparison to control. Maximum shoot length was recorded in the seed source MV-3 inoculated with Rhizobium strain Ca-181. Seed sources NNV-2, MV-3, NNV-3CAZRI and RTG had higher mean shoot length. These seed sources had good compatibility with Rhizobium strain Ca-181 and Mf-23a.

show abstract

Section: Root-shoot Ratiosupporting

confidence: 77%

Effect of rhizobium inoculation on juvenile growth ofProsopis cineraria (L.) Druce at nursery stage

Kumari

Bardhwaj

Dhillon

et al. 2016

IJARe

View full text Add to dashboard Cite

show abstract

“…Nodulation was highly variable among provenances of Acacia auriculiformis (Ngulube 1990). Of the 18 Indian provenances of Acacia nilotica tested, the Sirsa provenance showed maximum nodulation and nitrogen fixing ability, and this was mainly attributed to genetic effects and particular provenance -Rhizobium combination (Beniwal et al 1995).…”

Section: Genetic Variabilitymentioning

confidence: 99%

Ecology of seed and seedling growth for conservation and restoration of tropical dry forest : a review

2001

View full text Add to dashboard Cite

Dry forests are among the most threatened ecosystems and have been extensively converted into grasslands, secondary forest, savanna or agricultural land. Knowledge of seed germination and seedling establishment is required for the success of efforts on restoration of these forests. This review focuses on the ecological requirements at seed and seedling stages, and collates the current knowledge of seed viability, dormancy, germination pattern and seedling behaviour of dry tropical tree species. The spatio-temporal variations within the tropical dry forest biome in soil moisture, light, temperature, nutrients and intensity of predation, significantly affect the seed and seedling traits of component species. The majority of dry tropical species possess orthodox seeds which are characterized by dormancy, while a few have recalcitrant seeds which possess little or no dormancy. Seed coat dormancy, which can be overcome by mechanical or acid scarification or sometimes by transit through animal guts, is most prevalent in the dry tropical forest species. Persistent species dominating the undisturbed portions of the forest have bigger seeds compared to those that mostly occur in disturbed regions and require shade for the survival of their seedlings. Shade demand is associated with drought endurance, and may be absolute in species such as Guettarda parviflora and Coccoloba microstachya, or facultative as in Plumeria alba and Bursera simaruba. The fluctuation in temperature significantly affects seed germination in several species of dry Afromontane forest trees of Ethiopia. Seedling mortality is primarily a function of moisture stress during the dry period. Adaptive responses of seedlings to drought stress include increased chlorophyll content, for example in Acacia catechu, and root biomass, as in several dry forest species (for example Drypetes parvifolia, Teclia verdoornia) of Ghana. Mulching, application of fertilizers, interplanting of leguminous species and mycorrhizal inoculation are useful tools for promoting seedling establishment in nutrient-poor dry tropical soils. Periodic forest fires, and predation affect recruitment and seedling development according to their intensity. Many species experiencing frequent fires have evolved thick seed coats, produce fire-hardy seedlings, or escape the effect by temporal separation of seed dispersal and fire events. Predation may result in abortion of fruits or may enhance germination and recruitment by scarification and dispersal, as in most species of the Guanacaste dry forest. Exposure to elevated CO 2 has increased relative growth rate, total leaf area and water use efficiency in most of the dry tropical seedlings tested, but the magnitude of the effect has varied markedly among species. Due to the availability of a large source of energy, large seeds show higher germination percentage, greater seedling survival and increased growth. Seeds originating from different provenances exhibit differences in germination and seedling growth (for example Prosopis cineraria, Albizia...

show abstract

“…In India, limited work has been done on collection and evaluation of the germplasm of Acacia nilotica except for a study reporting provenance variation in nitrogen fixing ability within this species (Beniwal et al, 1994). Seed germination is an important determinant for the population of a species in arid and semiarid environments.…”

Section: Introductionmentioning

confidence: 99%

Provenance variation in seed germination and seedling growth of Acacia nilotica ssp. indica in India

Krishan

Toky

1996

Genet Resour Crop Evol

Self Cite

View full text Add to dashboard Cite

Acacia nilotica ssp. indica, a multipurpose tree species occurs throughout semi-arid India. The present study reports the variation in seed germination and seedling growth of 21 sites (provenances) collected between the latitude 11 °N and 31 ° 23'N, and 19 m to 650 m altitude throughout India. There were significant differences (P < 0.05) between the sites for seed germination that varied from 16 to 90% in the incubator, and 14 to 84% in the nursery_ Significant variations were also observed in seedling growth up to 28 days in the incubator. There was no significant relationship between seed germination and seedling growth and the latitude or longitude of the original seed source. However, in general the South Indian provenances showed lower germination as compared to North Indian provenances. The observations are important for selection of vigorous provenances concerning seed germination and early seedling growth_

show abstract

Genetic variability in symbiotic nitrogen fixation between provenances ofAcacia nilotica (L.) Willd. ex Del.

Cited by 9 publications

References 19 publications

Effect of rhizobium inoculation on juvenile growth ofProsopis cineraria (L.) Druce at nursery stage

Effect of rhizobium inoculation on juvenile growth ofProsopis cineraria (L.) Druce at nursery stage

Ecology of seed and seedling growth for conservation and restoration of tropical dry forest : a review

Provenance variation in seed germination and seedling growth of Acacia nilotica ssp. indica in India

Contact Info

Product

Resources

About