Influence of Pre-sowing Treatments on the Germination of Prosopis africana  (Guill. and Perr.) Taub. Seeds

Chukwu, Onyekachi; Egwunatum, A. E.; Udekwe, Maryprecious A.; Ezenwenyi, Jacinta U.

doi:10.9734/ajraf/2020/v5i430091

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…These negative correlation trends are expected and suggested that tall and slender tree with small diameter has lower crown ratio values. Similar pattern was observed by previous researchers (Chukwu et al 2018)…”

Section: Correlation Among Tree Growth Variables For Individual Domin...supporting

confidence: 93%

Crown stratification ratio models for Tectona grandis L. f in Oluwa Forest reserve, Nigeria

Temitope Faleye,

Aderemi Akomolede,

Kehinde Ajayi

et al. 2021

ABS

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This research investigated crown ratio models for Tectona grandis plantation in Oluwa Forest reserve (Ondo State, Nigeria) using variables of slenderness coefficient and merchantable height. With three non-linear regression functions - logistic, Chapman-Richard and exponential we showed that basal area, tree stem volume and mean tree height per hectare were of high significance. In the same vein, there were fewer tree species in the class of higher diameter and height than there were in lower class. There were also more trees in the co-dominant and intermediate classes than in the dominant and suppressed layers. The lack of emergence in the plantation reflected the past disturbance of the ecosystem. Most of the tree growth variables were significantly different in different canopy layers in the study area. Based on the evaluation models, the three functions investigated for tree crown ratio modeling gaveconstant and reliable results in all canopy layers considering their indices. Especially, Chapman-Richard and exponential functions gave consistent trends and good fits for crown ratio models. It is recommended to put strict measures in place to avert any level of illegalities that may likely disrupt the delicate equilibrium of the ecosystem. It is also recommended that complexity revealed in this study is sustained in the region, and encouraged in other parts of Nigeria.

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Section: Correlation Among Tree Growth Variables For Individual Domin...supporting

confidence: 93%

Crown stratification ratio models for Tectona grandis L. f in Oluwa Forest reserve, Nigeria

Temitope Faleye,

Aderemi Akomolede,

Kehinde Ajayi

et al. 2021

ABS

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“…Atriplex canescens (Nosrati et al, 2008), Tamarindus indica L. (Muhammad and Amusa, 2003). Treating seeds with acid removes waxy layer by chemical decomposition of the components of seed coat (Dachung and Verinumbe, 2006). H 2 SO 4 disrupts the seed coat and thus lumens of the macro-sclereids get exposed and allows the imbibition of water which triggers protein synthesis and encourages the germination (Jackson, 1994).…”

Section: Discussionmentioning

confidence: 99%

Leucaena leucocephala and Prosopis juliflora: A comparative study of their seedlings with better drought adapted features in the time of rainfall pattern shifting

Mishra,

Rajak

et al. 2023

IJPE

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Leucaena leucocephala (Lam.) de wit, and Prosopis juliflora (Sw) DC, were introduced across the country due to their wide importance andthey are posing threat to native trees and ecosystem because of their wild and invasive nature. Therefore, study of their invasive featuresbecomes important during the current rainfall shift as India is witnessing a decrease in average rainfall and rainy events but an increasein downpour events. Our study throws light upon these plants’ invasiveness and rainfall-adapted characteristics. We performed the studyin the Botanical Garden, Banaras Hindu University, Uttar Pradesh, India. The study included two experiments (1) Seed germination underdifferent treatments- 48% H2SO4 for 40 minutes (T1), Water at 100°C for 10 minutes (T2), one-day water-soaked seed (T3); (2) Seedlingssurvival percentage and growth-indices under different watering conditions i.e., 50 mL water per seedling every day (W1), 50 mL wateronce in four days (W2), 50 mL water once in ten days (W3). Result of this study revealed that P. juliflora exhibited better germinationspeed and percentage in all three treatments (T1, T2, T3) in comparison to the L. leucocephala, while under T1 treatment, both exhibitedbest germination. On the 60th day of experiment maximum survival percentage was recorded under W2 water condition but maximumroot length was observed under W3 treatment for L. leucocephala and P. juliflora while maximum stem height was found under W1 andW2 treatments for L. leucocephala and P. juliflora respectively. These finding would conclude that P. juliflora is more potential invaderin comparison to L. leucocephala as this gave the best result under the drought stress condition W2 and W3 for all the parameters andstudy performed. Study also highlight the need of mitigation measures to curb the unlimited growth of P. juliflora under the presentscenario of rainfall shift favouring the invasion of drought tolerating plants.

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Influence of Pre-sowing Treatments on the Germination of Prosopis africana (Guill. and Perr.) Taub. Seeds

Cited by 2 publications

References 8 publications

Crown stratification ratio models for Tectona grandis L. f in Oluwa Forest reserve, Nigeria

Crown stratification ratio models for Tectona grandis L. f in Oluwa Forest reserve, Nigeria

Leucaena leucocephala and Prosopis juliflora: A comparative study of their seedlings with better drought adapted features in the time of rainfall pattern shifting

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