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 Monochoria africana N.E.Br. [Family Pontederiaceae]: Probable Reasons for Limited Distribution of This Rare Species in Kenya <p><em>Monochoria africana</em> N.E.Br. is an extremely rare plant with limited distribution in Kenya. Rare plant species are often specialists for a rare microhabitat and there is all likelihood that <em>Monochoria africana</em> is a habitat specialist. Our research on distribution of this species in Kenya has so far located it in a very small isolated microhabitat in the Tana River delta, coastal region of Kenya. So far, this plant has only been located in one community farm in a small village called Ozi, near Kipini, Latitude 2°30’33’’S and Longitude 40°27’20’’E. The methodology used in this study entailed direct observations, line transects, meander and patterned searches in its narrow area of endemism.</p> <p>In this short communication, the authors hypothesize various reasons for the limited distribution of this rare species. Viz: diverse edaphic factors, inbreeding depression, low levels of seed set, genetic bottlenecks, specialized pollination systems etc. At the Jomo Kenyatta University of Agriculture and Technology (JKUAT) department of Botany greenhouses, we have embarked on some studies to try and unravel probable reasons for rarity of <em>Monochoria africana.</em></p> Peter K. Njenga John K. Muchuku ##submission.copyrightStatement## 2020-08-05 2020-08-05 1 5 10.9734/aprj/2020/v6i130116 Zinc Enriched High Yielding Rice Variety BRRI dhan84 for Dry Season Rice Growing Areas of Bangladesh <p>A newly released zinc enriched, high yielding, slender and red pericarp grain containing rice variety BRRI dhan84, suitable for dry ecosystem (<em>Boro</em> season) of Bangladesh is an improvement over existing zinc enriched rice varieties for Bangladesh. The main objective of this research was to develop the of high yielding rice varieties with improved nutritional quality in term of high zinc (Zn≥24 mg/kg) in polished grain. The study was taken in 2004 by crossing between BRRIdhan29/IR68144//BRRI dhan28///BR11 and it takes near about 13 years to develop the targeted variety. After selection of one homozygous advanced line (BR7831-59-1-1-4-5-1-9-P1) the Regional Yield Trial (RYT) was conducted in <em>Boro</em> 2014-15 saeson and the Advanced Line Adaptive Research Trial (ALART) was evaluated at different farmers’ field in <em>Boro</em> 2015-16 season and different yield trials were conducted using Randomized Complete Block Desing (RCBD). The variety has satisfactorily passed the Proposed Variety Trial (PVT) conducted in the farmers’ field in <em>Boro</em> 2016-17 season. As a result National Seed Board (NSB) approved this variety for commercial cultivation in the dry season (<em>Boro</em> season) in 2017. It has modern plant type with 96 cm plant height and matures by 140 days. The salient feature of this variety is the red colored grain, earlier than check variety, the proposed variety showed higher yield than check variety BRRI dhan28. Identifying characters of this variety are dark green leaf, semi erect flag leaf, long slender and red colored grain. It can produce 6.0-6.5 t/ha grain yield. Thousand grain weight of the variety is 22.8 g and it has colored grain tip. The rice has zinc content 27.6 mg/kg, 25.9% amylose content with 9.7% protein content. BRRI dhan84 was released as a high yielding, zinc enriched rice variety to meet &nbsp;the nutritional (zinc) demand of the country. The zinc enriched BRRI dhan84 is a superb variety for cultivating in the dry (<em>Boro</em>) season and farmers can be economically benefited and the country will be nutritionally benefited by the cultivation of BRRI dhan84.</p> Md. Abdul Kader Partha Sarathi Biswas Tamal Lata Aditya Mohammad Anisuzzaman Tapas Kumer Hore Md. Ehsanul Haq ##submission.copyrightStatement## 2020-08-12 2020-08-12 6 13 10.9734/aprj/2020/v6i130117