2021, Jan & Jul (Vol. 12, No. 1 & 2)

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

Thu, 01 Jul 2021 00:00:00 GMT

CHARACTERIZATION OF MAIZE (Zea mays L.) LANDRACES OF BANDARBAN IN KHARIF SEASON Hasan, M.A.; Ullah, M.J. 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). J. Sher-c-Bangla Agric. Univ., 12(1 & 2): 59-66, January & July 2021

EFFECT OF MICRONUTRlENTS AND MULCHING ON GROWTH AND YIELD OF BROCCOLI (Brassica oleracea var. italica L.)

Thu, 01 Jul 2021 00:00:00 GMT

EFFECT OF MICRONUTRlENTS AND MULCHING ON GROWTH AND YIELD OF BROCCOLI (Brassica oleracea var. italica L.) Abira, Z.; Khatun, K.; Nizam, R.; Farhana, F.; Sarkar, M.R. A field experiment was conducted in the Horticulture Farm of Sher-e-Bangla Agricultural University ..• \:'brary ~ Dhaka. Bangladesh to study the effect of micronutricuts and mulching on growth, yield of broccoli. rhe\, ~ • cxpenmeni \\3.' laid out in facronal randomized block design with three replications. 111e experiment \: '. _ <::::-,l' consisted of four levels of micronutrients (To: No micronutrients, TI: Zn£. kg/hu. T1: Zn.o + 131 \ kg ba. ~<~ T,: In. n ~ 81, I 1'.101" kg/hn) and three levels of mulching (Mo: No mulch. ~tl: Water hyacmth. M:: ~ Black polythene). Mrcronutrients and mulching influenced significantly on most of the parameters. TIle data were recorded on various growth and yield parameters of broccoli. In case of micronutncnts. the highest curd yield (2-1.20 tJha) was found from T \ and the lowest curd yield (18.-14 IIl1a) was found from To. Regarding the treatment of mulching. Ml gave the highest curd yield (25.23 VIta) where the lowest (15.29 tfIm) wa... recorded from M". Considering the trcaunent combinations. the highest curd) ield (28.76 t/ha) \V,tS obmmed from T,M1 and the lowest yield (12.97 tIlm) was found from ToMn trcauncnt combinanon. J. Sher-e-Bangla Agric, Univ .. 12(I & 2): 51-58, January & July 2021

EFFECT OF FOUR PRE- STORAGE SEED TREATING CHEMICALS ON MAINTAINING SEED QUALITY AND REDUCING STORAGE COST OF RICE SEED

Thu, 01 Jul 2021 00:00:00 GMT

EFFECT OF FOUR PRE- STORAGE SEED TREATING CHEMICALS ON MAINTAINING SEED QUALITY AND REDUCING STORAGE COST OF RICE SEED Islam, M.S.; Hasan, M. A laboratory experiment was conducted III rbc department or Agronomy. SAU. Dhaka with two rice varieties (OR II and ORRI dhanS7) and live pre- storage seed treating chemicals (no pre-storage 5(.'\.'(1 treatment. ascorbic acid @ 500 mg kg I seed. common bleaching powder @ 2 g kg·1 seed. red- chilli @ 2 g kg I seed and uspmn (ci 2 g kg I seed). TIle trcnuncnts were arranged in a completely randomized design with four replications. Eighty coniamers of which forty were tilled with 250 g BR II and rest wuh 250 g BRRI 7 nee seeds. eeds of each contamer were treated as per rrearmem, Seed qualuy aunbutcs viz.. germinauon (°0). "lability (0.). germination speed index. seedling vigor index. seedling dry weight. mean root length of seedling. mean shoot length of seedling. mean total length of seedling and relauvc values of these parameters were recorded at storage, 8 months nflcr storage and 9 months after srorage. Results indicated that up to 8 months after storage germination, viability, relative seed germination and relative viability were statistically similar in both BR II and SHIH dhanS7. BUI at 9 months after storage. these # II.qflCU1r.. parameters were reduced drastically in BRII. whereas statistically similar to at II months after storage. IY _<'/!;}J~ • £~7~ ~ Ascorbic acid and red chilh showed improved status in these parameters al 9 months after storage i ~ 1- remarkably III ORII. whereas ml3RRJ dhan 87 effects were negligible. J. Sher-e-Bangia Agnc. Univ., J2( I & 2): 41-50, January & luly 2021

EFFICACY OF SOME SELECTED MEDICINAL PLANTS FOR THEIR POSSIBLE ALLELOPATHIC ACTIVITY ON BARNYARD GRASS AND OKRA

Thu, 01 Jul 2021 00:00:00 GMT

EFFICACY OF SOME SELECTED MEDICINAL PLANTS FOR THEIR POSSIBLE ALLELOPATHIC ACTIVITY ON BARNYARD GRASS AND OKRA Islam, S.N.; Islam, M.A.; Chowdhry, M.T.I. VlcdlclOal plant-, have been known as candidates of allclopmhic potcnual to their ability to cvlubu nllclochermcals .\n cxpcnmcnt wa-, conducted 10 evaluate the effect (If ullelopathic acnvhics of five medicinal plants. i.c .. asparaguv ( "I'(mlgll~ I"tlCC/IIfI.\'1.\wiid.). lcbbeck t Alhizia Iebbeck), dcvil's couon (.Ihmma tll/gll.\/tI). ~arlct gourd «('",dllell cortl/li,lw). and spreading hogwced (Boerhavia (/rill/It! 111111) on the root and ~h.)()t growth of okra and barnyard grass. Hvc concentrations of each medicinal pl.lIlt cvrracr viz, 1: (control: no extrncr), r, (0,0 I mg dry WI. cq, cxtract/ml.), T: (0.03 mg df') \\ t. C4. cvtracuml.). T, (0.1 mg dry 111. eq. extract/rnl.) and T. (0.3 mg dry WI. eq. extractrnl.) were used for the mrerfcrcncc rest. TI,,: experiment was laid out in a completely rnndcmizcd design (eRO) with three replications. Results indicated that all concentrations of plant extract showed an inhibitory effect on okra and barnyard gras- Among the concentrations of plant extract. T. (0.) 1Ilg. dry \\1, cq. extract} mL) showed the highest intcrrupuve effect on both okra and barnyard grass, In terms of root length of okra. spreading hogweed and scarlet gourd extract at T. (0.3 mg dry WI. eq. extract! mt.) showed the highest allclopathic effect and gave the 101\1,·,1 root length (0.533 mm). The spreading of hogwecd extract at T" (0.3 mg dry \~1, eq. extract mL) conccnmuion on barnyard grass seeds showed the highest allelopthic effect for the shoot and root length (i.e .. 1.9 mm and 0.93 nun. respectively). The interference results above ,ugg~t Ih31 Coccinea cordifolia and Bocrhuvia diffl/se L. might haw allelopathic potential due to some nativ C allclochcmicals, Therefore. ('OCciIlCU cordifolio and Boerhuvio di!li'.\1! L. could be used as mulch or soil additives to suppress weeds fur sustainable crop production. J.. Sher-e-Bangia Agric. Univ .. 12( I & 2): 33-40. January & July 2021