CHARACTERIZATION OF MAIZE (Zea mays L.) LANDRACES OF BANDARBAN IN KHARIF SEASON

Abstract

An expcnmcnt wav carried OUIunder field conditions 10characterize 10 maize landraces during the period from Marth 2019 10 July 2019 in Kbarif season at the research field of Sher-c-Bangla Agricultural University. Dhaka. Bangladesh. Planting materials of the landraces were collected from different locations of Bandarban hill di-trict. The landraces were characterized in terms of plant growth and yield parameters on morphologrcal traus. Each of the landraccs were termed as a variety and was named by the color of the grains. As such the veneries (VI) = While. V2= Off white, V)- Purple, V.- Black. Vj= Red. V~= Yellow. V.". Pink. V..= Yellow and Brown scattered. V9= Brown and VIO- Variegated. High level of significance of variation was found 111110ngthe landraccs. Maximum time (67.67 days) for flowering was taken by V10 and minimum lime (53.67 days) was taken by VI. V~ took highest time (128.67 days) and VI look lowest lime (105 days) 10 mature. Tallest plant was found in VIO (210.50 em) and shortest planl was found in V. (160 em). Varieties differed in leaf number, leaf length, leaf width, rOOIlength, root spread circumference and tassel length. TIle maximum cob length (2ll.4 em) was recorded from V I and the minimum from V, (IS.25 em). The highest cob circumference (16.70 ern) was in V. whereas. thc lowest (10 crn) was III VIO• VI had the maximum grain rows cob" (16.17) whereas. V6 had the minimum (10.75). VI exhibited the maximum number of grains 1'0\\ I (26.70) and V" had the minimum (13.50). IlighcsI number of grnms per cob was counted at VI (335.17) and lowest number was at V" (164.31). Varieties also differed in stern dry mailer. leaf dry weight. shell weight and chaffweight. The greatest grain weight per plant was auaincd in VI (62.55 g) while. the 10\\csI was in V6 (27 g). VI showed the maximum 100 grains weight (23.36 g) and V. showed the minimum (14.94 g). VI showed the highest grain yield (3.10 I ha I) and V. showed the lowest gram yield (J.28 I ha"). V. presented the highest stover yield (6.89 I ha I) and V. thc 10\\cSI (4.40 t ha'). Ihghc,1 biological yield (8.92 t hal) was exhibited by V. and lowest biological yield (5.68 t ha I) was cxhrbued b) \ ... VI showed the maximum harvest index (40.72%) while V, showed the rmnimum harvest Index (19.28° 0).