Md. Golam Azam*
Plant Breeding Division, Agricultural Research Station, BARI, Pahartali, Chattogram-4225, Bangladesh
M Shalim Uddin
Plant Genetic Resource Center, BARI, Gazipur-1701, Bangladesh
SM Kamrul Hasan Chowdhury
Plant Pathology Division, Agricultural Research Station, BARI, Pahartali, Chattogram-4225, Bangladesh
ASM Harunor Rashid
Horticulture Division, Agricultural Research Station, BARI, Pahartali, Chattogram-4225, Bangladesh
Haimonti Barua
Plant Breeding Division, Agricultural Research Station, BARI, Pahartali, Chattogram-4225, Bangladesh
Rozina Afroz Chhanda
Plant Genetic Resource Center, BARI, Gazipur-1701, Bangladesh
Sajia Rahman
Plant Genetic Resource Center, BARI, Gazipur-1701, Bangladesh
Shamim Ara Bagum
Seed Technology Division, BARI, Gazipur-1701, Bangladesh
Mossammat Shamsunnahar
Plant Genetic Resource Center, BARI, Gazipur-1701, Bangladesh
Md. Nazirul Islam
Horticulture Division, BARI, Gazipur-1701, Bangladesh
Morphological variability, Qualitative characters, Quantitative characters, Heatmap, Dendrograph
Fruits orchard of Agriculture Research Station (ARS), Pahartali, Chattogram and Regional Agriculture Research Station (RARS), Hathazari, Chattogram
Variety and Species
The study was conducted in the fruits orchard of Agriculture Research Station (ARS), Pahartali, Chattogram and Regional Agriculture Research Station (RARS), Hathazari, Chattogram during 2019-20. The experimental areas lie between 22.180N latitudes and 91.890E longitudes at an average elevation of 20 m above sea level. The experimental unit belongs to Agroecological Zone 23 known as Chittagong Coastal Plains. The physiographic unit of these areas is low hills and valleys. The soils are predominantly moderately fine textured and the pH of soil is about 6.5. The organic matter ranges from 0.7 %- 1.47 % in top soil and 0.38 % – 0.76 % in sub soil. About 22 diverse guava germplasm were included in the experiment. Among these genotypes, 20 were collected from “Kanchan nagor” area of Chattogram region. The genotypes of “Kanchan nagor” area are usually sweet in taste and have huge variability in maturity, fruit size and shape, skin color, flesh color and yield. The remaining two genotypes were Bangladesh Agricultural Research Institute (BARI) released guava variety namely BARI Peyara 2 and BARI Peyara 4. The data was recorded as per the descriptor of National Bureau of Plant.
Genetic Resources (NBPGR), India. Shape and flesh color of fruit and mature leaves was assessed by eye estimation and stated in language on the basis of the descriptors for guava developed by NBPGR. Skin color of fruit was determined at full mature stage. Surface smoothness of fruit of all selected guava germplasm was determined by finger touch and eye estimation method. Texture of pulp, pulp flavor, seed hardness and sweetness/taste of fruit were determined by a panel of judges though organoleptic test. Data were recorded like plant height(m), base girth (cm), no. of branch, canopy (N-S), canopy(E-W), leaf shape, mature leaf color, fruit shape, fruit surface, fruit breadth(cm), fruit length(cm), fruit weight(g), fruit skin color, pulp color, pulp texture, pulp flavour, fruit taste, TSS, seediness, seed hardness and yield/ plant (kg).
Data analysis Statistical analyses were performed using R-statistics software Version 4.0.2 for Windows (R Development Core Team, 2020). The hierarchical clustering was performed using Spearman's rank correlation algorithm.
Journal of Agricultural Science & Engineering Innovation (JASEI) U.S. ISSN 2694 -4812 Vol. 1, No. 2, 2020
Journal