Asian Plant Research Journal <p style="text-align: justify;"><strong>Asian Plant Research Journal (ISSN: 2581-9992)</strong> aims to publish high quality papers <a href="/index.php/APRJ/general-guideline-for-authors">(Click here for Types of paper)</a> in all aspects of plant research. The journal also encourages the submission of useful reports of negative results. This is a quality controlled, OPEN peer reviewed, open access INTERNATIONAL journal.</p> <p style="text-align: justify;">&nbsp;</p> Asian Plant Research Journal en-US Asian Plant Research Journal 2581-9992 Gibberellic Acid Application and Plant Spacing Effects on Growth and Yield of Lettuce (Lactuca sativa L.) <p><strong>Aims: </strong>This study aimed to optimize the levels of gibberellic acid (GA<sub>3</sub>) and plant spacing on growth and yield of lettuce.</p> <p><strong>Study Design:</strong> The experiment was laid out in Randomized Complete Block Design with three replications.</p> <p><strong>Place and Duration of Study:</strong> Horticulture farm of Sher-e-Bangla Agricultural University, Dhaka-1207, from November 2013 to January 2014.</p> <p><strong>Methodology: </strong>The experiment consisted of two factors. Factor A- two levels of gibberellic acid (GA<sub>3</sub>,) application, viz. G<sub>1</sub>= 25 ppm and G<sub>2</sub>= 50 ppm in relation to a control G<sub>0 </sub>and factor B- four plant spacing <em>viz</em>. S<sub>1</sub>=15cm x 15cm, S<sub>2</sub>=20 cm x 20 cm, S<sub>3</sub>=25 cm x 25 cm and S<sub>4</sub>=30 cm x 30 cm. GA<sub>3</sub> was applied twice as a foliar application by hand sprayer at 20 and 30 days after sowing. First, second and final harvesting was done at 25, 35 and 45 days after sowing respectively.</p> <p><strong>Results: </strong>The growth and yield characters of lettuce showed significant variation for different levels of GA<sub>3</sub> and plant spacing. Among GA<sub>3</sub> levels, 25 ppm GA<sub>3</sub> produced the maximum number of leaves (15.6), leaf area (283.9 cm<sup>2</sup>), fresh weight (91.6 g plant<sup>-1</sup>), dry weight (11.8 g plant<sup>-1</sup>), fresh yield (1794 g plot<sup>-1</sup>) and gross yield (12 t ha<sup>-1</sup>) at final harvesting compared to control where GA<sub>3 </sub>was not used. Under plant spacing, highest plant height (17.5 cm), leaf area (281.1 cm<sup>2</sup>), fresh weight (99.1 g plant<sup>-1</sup>) and dry weight (12.1 g plant<sup>-1</sup>) was revealed from wider spacing 30 cm x 30 cm followed by optimum spacing 25cm x 25cm. Meanwhile, closure spacing 15 cm x 15 cm showed maximum fresh yield (1710 g plant<sup>-1</sup>) and gross yield (15.5 t ha<sup>-1</sup>) due to higher plant density at final harvesting. Besides, lower chlorophyll content (0.43%) and the highest number of leaves (16.2) was found from 25 cm x 25 cm at final harvesting. So, optimum spacing 25 cm x 25 cm would be more suitable considering different points of view. Moreover, the treatment combinations 25 ppm GA<sub>3</sub> with 25 cm x 25 cm exhibited highest benefit-cost ratio (2.04) than other treatments.</p> <p><strong>Conclusions: </strong>It is concluded that the combinations 25 ppm GA<sub>3</sub> application with 25cm x 25cm spacing would be optimum for better growth and yield of lettuce</p> Taslima Akter Md. Nazrul Islam Md. Jahedur Rahman Rebaka Sultana Chaity Dey Puja Farzana Islam Md. Rezwan Sarker Md. Mofizur Rahman ##submission.copyrightStatement## 2020-09-04 2020-09-04 1 13 10.9734/aprj/2020/v6i230122 Biorational Management of Pulse Beetle (Callosobruchus chinensis L.) in Gram Seed <p>The pulse beetle, <em>Callosobruchus chinensis</em> is one of the major pests in stored pulse causes 40-50% losses of pulses in storage. Experiments were conducted to study the efficacy of some selected biorational insecticides on percent mortality of beetle, percent weight loss of seeds, no. of eggs laid per female, percent hatchability, larval duration, pupal period and adult longevity of pulse beetle, <em>Callosobruchus chinensis </em>under laboratory condition. Among the different botanicals, neem oil (77%) was found the most effective showing 78% mortality of pulse beetle in direct method followed by Mahogany oil (69%) and karanja oil (62%). In case of indirect method, the highest percent mortality was recorded from karanja oil (37%) which was followed by Neem oil (33%) and Mahogany oil (33%). Among different microbial derivatives, Libsen was found most effective considering mortality followed by Suspend 5SG and Ambush 1.8EC. The highest percentage of weight reduction was observed in Karanja oil (15%) and the lowest (14%) was in Mahogany oil. The highest percentage of weight reduction was obtained from Ambush 1.8EC (16%) and the lowest percentage of weight reduction was obtained from Suspend 5SG (13%). No. of eggs laid per female was the highest in mahogany oil (24) and lowest in Libsen (19).&nbsp; Percent of hatchability was highest in mahogany oil (21%) and lowest in Libsen (16%). Larval duration was the highest in mahogany oil (16 days) and the lowest was in Suspend 5SG(13days). Pupal period highest in neem oil (7 days) and the lowest was in (6 days). The highest adult longevity (22 days) from the seeds treated with karanja oil. The lowest adult longevity (18 days) from seeds treated with Libson. Thus, Karanja, Neem and Mahogany oil, Libsen, Ambush 1.8EC and Suspend 5SG were found effective against pulse beetle in storage. Therefore, these biorationals might be included in the development of IPM packages for the management of pulse beetle in the storage.</p> Md. Al-Mehedi Hasan Sonia Sultana Keya Akter Tasnia Ummul Wara Mehedi Hasan Mohammad Mahir Uddin ##submission.copyrightStatement## 2020-09-19 2020-09-19 14 22 10.9734/aprj/2020/v6i230123 Performance of White Maize under Different Spacing and Integrated Fertilizer Management <p>An experiment was conducted during December, 2017 to May, 2018 at the Agronomy field of Sher-e-Bangla Agricultural University, Dhaka to evaluate the performance of white maize variety under different spacing and integrated fertilizer management. The experiment comprised two different factors; (1) two plant spacing <em>viz.</em> S<sub>1</sub> (60 cm × 20 cm) and S<sub>2 </sub>(40 cm × 20 cm) and (2) four levels of integrated fertilizer application <em>viz</em>. T<sub>1</sub>: All chemical fertilizer (recommended dose), T<sub>2</sub>: maize straw compost +½ of recommended dose,T<sub>3</sub>: cowdung+½ of recommended dose and T<sub>4</sub>: vermicompost +½ of recommended dose. The experiment was set up in split plot design with three replications. Results revealed that both the individual and the interaction treatments had effect on different growth and yield parameters of white maize. In respect of the spacing effect, the wider spacing S<sub>1 </sub>showed higher plant height, number of leaves plant<sup>-1</sup>, cob length, cob circumference, number of grains cob<sup>-1</sup>, shelling percentage, 100 grains weight and harvest index where S<sub>2 </sub>showed higher grain yield. The integrated fertilizer had significant effect on different growth and yield parameters of white maize. In respect of the integrated fertilizer effect, the highest values in plant height, number of leaves plant<sup>-1</sup>, leaf area index and crop growth rate, cob length, cob circumference, number of grains cob<sup>-1</sup>, shelling percentage, 100 grains weight, grain yield, stover yield and biological yield were highest with T<sub>3</sub> whereas, the lowest corresponding values were recorded from T<sub>2</sub>. Among the interaction treatments, higher seed yield was obtained with the interaction treatment S<sub>2</sub>T<sub>3</sub> (10.01 t ha<sup>-1</sup>) while S<sub>1</sub>T<sub>2 </sub>showed significantly the lowest seed yield (5.27 t ha<sup>-1</sup>). The highest seed yield was mostly attributed to the number of grains per cob (328-433) and 100 seed weights (29.67-33.33 g).</p> Tahmina Ahmmed Md. Jafar Ullah M. A. Mannan Mst. Shammi Akter ##submission.copyrightStatement## 2020-09-24 2020-09-24 23 32 10.9734/aprj/2020/v6i230124 Floristic Diversity in Secondary Forest under Munduruku Indigenous Agroextractivism <p><strong>Aims: </strong>Knowledge is currently low about composition, richness and abundance of native plant species from secondary forests in traditional communities in the Tapajós River Basin, Western Amazon. These forests are of great importance to indigenous populations being niches of resistance to the advances of monocultures. The objective of this work was to evaluate the floristic composition of a secondary forest with typical indigenous extractive interventions.</p> <p><strong>Study Design:</strong> The secondary forest studied located in indigenous Village. This forest had 15 years of natural regeneration and was therefore an anthropized forest, where the indigenous people removed wood, fibers, oils and fruits, thus characterizing the agroextractivism on this environment and a very particular floristic composition always in evolution.</p> <p><strong>Place and Duration of Study:</strong> The research was in Santarem city, Pará state, in Ipaupixuna Village (02°32´46” S, 54°20'15” W) between June 2019 to December 2019.</p> <p><strong>Methodology:</strong> The research had a descriptive approach for floristic study, but in the same time had a quantitative point of view with the use of regression analysis. The parameters evaluated were: 1. Species abundance, 2. Floristic Richness; 3. Plant diversity measured by the Jentsch Mixing Coefficient; 4. Relations between Circumference &amp; Height of trees. The size of the sampled area was 1 (one) hectare of secondary forest.</p> <p><strong>Results:</strong> A high abundance was found for <em>Tapirira guianensis </em>Aubl followed by <em>Buchenavia huberi </em>Ducke and <em>Bellucia grossularioides (L.) </em>Triana. Fabaceae was the family of greatest quantitative expression in this 15-year-old secondary forest in indigenous landscapes followed by Arecaceae.</p> <p><strong>Conclusion:</strong> The secondary forest studied of 15 years of natural regeneration and random anthropogenic interventions by agroextractivists activities of Munduruku Indigenous people showed medium floristic richness and low floristic diversity. Interventions to enrich this secondary forest with plant species with high economic potential can bring environmental and economic benefits to these indigenous people.</p> Patrícia Chaves de Oliveira Beatriz Costa de Oliveira Queiroz de Souza Elói Gasparin ##submission.copyrightStatement## 2020-09-24 2020-09-24 33 40 10.9734/aprj/2020/v6i230125 Nutritional Health Benefits and Bioactive Compounds of Mangifera indica L (Mango) Leaves Methanolic Extracts <p>Mango leaves (<em>Mangifera indica</em>) contain a lot of beneficial phytopharmacological compounds to remedy various diseases through its nutritional bioactives. <em>Mangifera indica </em>leaves were successfully collected from healthy mango tree. The qualitative phytochemical analysis of obtained, indicated the presence of many medicinally important secondary metabolite present which are alkaloids, tannins, saponins, flavonoids, and total phenol with no trace of cardiac glycosides. This indicates that the (<em>Mangifera indica</em>) possess high profile values and can be used to treat various kinds of diseases. The quantitative phytochemical analysis of mango leave extract obtained revealed that, the content of total phenol was high (1.342 ± 0.001mg/g) and the least concentration was observed in cardiac glycosides (0.136 ± 0.001mg/g). It also contain 1.054 ± 0.001mg/g of flavonoid. The extract was found to contain 0.977 ± 0.001mg/g of tannins. The concentration of alkaloid observed was 0.300 ± 0.141mg/g. Saponins was 0.244 ± 0.001mg/g concentration. The proximate composition of a nutritional benefits of mango leaves. It has crude protein value of 18.59%, for the carbohydrates is higher in it has a value of 30.60%. The percentage ash content which is an indicator of the quality of mineral nutrients present has a value of 11.49%. Crude firbre content has a value of 13.99%. Estimation of vitamins in the leaves of Mango, where vitamin A, B, C, E (121, 189, 30, 10). The mineral compositions in the leaves of Mango are Na, K, Ca, Mg, Fe, Zn, P, N, Mn (28, 589, 368, 98, 343, 14, 480, 2, 3). The metalocompounds play a vital roles in human health physiology. This research classified a large number of nutritional benefits available from various sources and used in the treatment of various diseases such as Cardiovascular, anemia, Obesity, Diabetes, Cancer, Alzheimer, Parkinson, Inflammation, and Allergy. These are cured by herbal nutrition or food herb dietary condiment for phytotherapeutic purposes. The presence of various phytochemicals in the tested plant reveals that this plant may be a good source for production of new drugs for various ailments.</p> Bashir Alabi Ali Abdullahi Attah Alfa Kokori Bajeh Tijani Egbeja Tsobaza Idris Umar Sabdat Unoyiza Yahaya Junaidu ##submission.copyrightStatement## 2020-09-25 2020-09-25 41 51 10.9734/aprj/2020/v6i230126