Germination and Early Growth Assessment ofTamarindus indica Lin Sokoto State, Nigeria

Abstract

Germination and early growth assessment ofTamarindus indica L. were conducted to determine the suitable medium for germination and seedlings establishment of the species in Sokoto State, Nigeria. The viable seeds of the study species were treated with Conc. H2SO4for 30 minutes and boiling water for one hour and by soaking in water at room temperature for 12 hours. The treated seeds were placed in Petri dishes containing filter paper for germination assessment. The results indicated 68–95% germination ofT. indicaseeds within 3–19 days. Conc. H2SO4treatment gave the highest germination percentage of 95%.T. indicaseeds were treated with Conc. H2SO4for 30 minutes and sown into four (4) different potting mixtures for early growth assessment. Collar diameter, seedlings height, and leaf number were the parameters measured. Seedlings grown in the mixture of river sand and cow dung (2 : 1) had the highest seedlings height and leaf number, while the highest collar diameter was obtained from seedlings grown in the mixture of river sand and poultry droppings (2 : 1). However, growingT. indicain the mixture of river sand and cow dung (2 : 1) after 30 minutes pretreatment was recommended.

Effects of Diverse Pretreatments on Seed Germination in Cleome gynandra L. (Capparidaceae) - A Threatened Species, Collected from Different Agro-Ecological Zones in Benin

“…Moreover, further collections (seeds) of Cleome gynandra genetic resources in Benin Republic are continuing with regards to mastering the seed physiology of the species, indispensable pledge for its preservation by accelerating a better regeneration. Pretreatments as applied by different authors (Fredrick et al, 2016;Bello and Gada, 2015;Niang et al, 2015;Ahoton et al, 2009) combined with the methodology used in the present report are in progress and will permit to surround the various types of dormancy, and then to enhance the possibilities of their levee towards raising germination capacity and speed in Cleome gynandra. This may be encouraging for a better regeneration of the species and therefore its conservation.…”

Dormancy Breaking and the Influence of Gibberellic Acid on the Early Growth of Tamarindus indica Seedlings in Mubi, Nigeria

“…The seeds were removed, washed with several changes of clean water. The seeds of the first group were sown in moisten cotton wool on a petri dish while those of the second group were planted in the potting medium to determine the rate of water uptake and germination [8].…”

“…Ten seeds were soaked for one minute and another ten for 2 minutes respectively; the treatments were allowed to cool down to 20C. The first group was placed on moistened cotton wool while the other group was sown in the potting medium to determine the rate of water uptake and germination [8].…”

“…Cold Water Treatment: Seeds for this treatment were soaked in cold water at room temperature for 24 and 48 hours respectively; half of the pre-treated seeds were sown in the potting medium and the remaining half on moistened cotton wool to determine the rate of water uptake and germination [8]. The control was set up by sowing the seeds directly without treatment in polythene bags and Petri dish to determine the rate of water uptake and germination.…”

“…The pulp is used as a sweetener in sorghum and millet porridge while the other parts of the plant are used as antioxidant [3], anti-hepatoxic [4] antiinflammatory, anti-mutagenic [5] and anti-diabetic [6] The plant is a slow-growing one; and longlived tree that reaches under favorable condition, a height of 12-24 m and a trunk circumference of 7.5 m. The matured tree under favorable conditions may annually yield 150-225 kg of fruits [15,7]. Tamarind wood is useful in making furniture, wheels, mallets, mortars, pestles, ploughs, tent pegs, canoes, side planks for boats, cart shafts and axles, and naves of wheels, toys, oil presses, sugar presses, printing blocks, tools and tool handles, turnery, and so on [8].…”