scholarly journals Influence of Day-length Enhancement through Night-breaking by Artificial Lighting on Off-season Dragon Fruit Production

2021 ◽  
pp. 1-10
Author(s):  
A.S. M. Harunor Rashid ◽  
Md. Golam Azam ◽  
S. M. Kamrul Hasan Chowdhury
Keyword(s):  
Agricultural Research ◽  
Fruit Production ◽  
Fruit Weight ◽  
Day Length ◽  
Superior Performance ◽  
Research Station ◽  
Artificial Lighting ◽  
Fruit Length ◽  
Yield Pillar ◽  
Dragon Fruit

The effect of artificial lighting in order to enhance day length for off-season dragon fruit production was examined for the first time in Bangladesh. A two factorial experiment was conducted at dragon fruit orchard of Agricultural Research Station, Pahartali, Khulshi, Chattogram to find out the best lighting duration and bulb for off-season dragon fruit production. Two factors were bulb and lighting duration for this experiment. The performance 6 hours lighting duration was significantly superior than other treatments in case of bud/pillar (43.80), fruit/pillar (43.80), fruit length (9.31 cm), fruit breadth (8.5 cm), individual fruit weight (344.62 g), yield (16.58 t/ha). 100 W IB having light intensity 225.96 lux showed superior performance over other treatments in case of bud/ pillar (49.44), fruit/pillar (34.56), fruit length (9.54), fruit weight (336.99 g), TSS (9.28%), yield (18.13 t/ha). The treatment combination (100 W IB for 6 hrs lighting) produced the highest number of fruit/ pillar (36.33), bud/pillar (54.00), fruit length (9.66 cm), fruit breadth (8.99 cm), yield/ pillar (12.41 kg) and yield (19.85 t/ha).In control dragon fruit was unable to produce flowering due to short day length. So artificial lighting of 6 hrs with 100 W IB from 18 pm to 24 am was superior method for off-season dragon fruit production.

scholarly journals Fruit characterization of different avocado (Persea americana Mill.) genotypes in eastern mid-hills of Nepal

2018 ◽  
Vol 1 (1) ◽  
pp. 142-148
Author(s):  
Krishna Poudel ◽  
Manoj Kumar Shah ◽  
Jawahar Lal Mandal ◽  
Jiban Shrestha
Keyword(s):  
Seed Weight ◽  
Agricultural Research ◽  
Fruit Weight ◽  
Persea Americana ◽  
Research Station ◽  
Fruit Characteristics ◽  
Weight Percentage ◽  
Fruit Length ◽  
Fruit Diameter

The total of thirteen different avocado (Persea americana Mill.) genotypes were collected for evaluating the fruit characteristics in the laboratory of Agricultural Research Station, Pakhribas during November 2017. The fully matured fruits from the farmer's field at Patle, Dhankuta were collected. The criteria for selecting the genotypes were fruit weight, fruit length, fruit diameter, seed weight, pulp weight, pulp to fruit ratio and the seed weight percentage. The result suggests the potentiality of the genotypes PAKAV002 and PAKAV010 in most of the evaluated characters as compared to the tested genotypes. The genotypes PAKAV008 and PAKAV007 were disliked as they have 32.59% and 28.39% of seed weight to the total fruit weight. The genotypes PAKAV002 and PAKAV010 had the average fruit weight ranging (307.1 g and 346.8 g), maximum of pulp to fruit ratio 62.34% and 56.97%. Similarly, genotypes PAKAV010 (11.425%), PAKAV013 (11.96%) and PAKAV002 (14.47%) had low seed weight to the total fruit weight which is regarded important factor for avocado selection and evaluation. This result shows that the genotypes PAKAV002 and PAKAV010 should be further evaluated for fruit characteristics and the quality.

scholarly journals Genetic divergence analysis in papaya (Carica papaya L.) Genotypes

2016 ◽  
Vol 41 (4) ◽  
pp. 647-656
Author(s):  
N Ara ◽  
M Moniruzzaman ◽  
Ferdousi Begum ◽  
M Moniruzzaman ◽  
R Khatoon
Keyword(s):  
Genetic Diversity ◽  
Plant Height ◽  
Genetic Divergence ◽  
Carica Papaya ◽  
Agricultural Research ◽  
Research Station ◽  
Plant Weight ◽  
Mean Values ◽  
Fruit Length ◽  
Cluster Distance

The experiment on papaya (Carica papaya L.) consisting of fourteen genotypes from diversd gene pool was conducted at the Regional Agricultural Research Station, Ishurdi, Pabna during April 2013 to May 2014 to study the nature and magnitude of genetic divergence and eventually identification of suitable genotypes for use in breeding program. Multivariate analysis was subjected to assess the genetic diversity and Mahalanobis’ generalized distance (D2) was used to assess the divergence present among the genotypes. The fourteen genotypes were grouped into four clusters. The cluster IV had the maximum genotypes (5) followed by cluster I having 4 genotypes and cluster II having 3 genotypes. Cluster III had the minimum genotypes (2). The inter-cluster distances were greater than intra-cluster distances in all cases, suggesting wider genetic diversity among the genotypes of different groups. The highest intracluster distance was observed in cluster III and the lowest in cluster II. The maximum inter-cluster distance was estimated between clusters I and IV (11.3212), moderate distance between clusters II and IV (9.961) and clusters III and IV (7.568), and that of the lowest between clusters I and III. Cluster III recorded the highest mean values for fruit length, plant height at last harvest, number of fruits/plant, weight of fruits/plant and fruit yield, while cluster IV exhibited the maximum mean values for pulp thickness, plant height at 1st harvest and the second highest mean values for fruit length, fruit breadth and TSS. Therefore, more emphasis should be given on cluster III for selecting genotypes as parents for crossing with the genotypes of cluster IV which may produce new recombinants with desired traits.Bangladesh J. Agril. Res. 41(4): 647-656, December 2016

scholarly journals Variability And Performance Of Superior Velvet Apple (Diospyros Discolor) Germplasm In The Hilly Region

1970 ◽  
Vol 36 (2) ◽  
pp. 223-230
Author(s):  
M Ahmed ◽  
SN Mozumder ◽  
ZA Firoz ◽  
SM Faisal
Keyword(s):  
Agricultural Research ◽  
Fruit Weight ◽  
Poor Correlation ◽  
Research Station ◽  
Edible Portion ◽  
Agricultural Research Station ◽  
Hilly Region ◽  
And Performance ◽  
The Hill ◽  
Better Than

The study was conducted at the Hill Tracts Agricultural Research Station, Ramgarh during two years in 2007 and 2008 to evaluate the variability and performance of selected 11 velvet apple germplasm. A lot of variations in different parameters were observed among the trees. The age of plant varied from 7 to 25 years having tree volume 58 m3 to 428 m3. The number of fruits ranged from 42 to 674 per plant with single fruit weight 118 to 283 g. The length and diameter ranged from 6.63cm to 7.7cm and 5.73cm to 8.3cm, respectively. The maximum edible portion (68.3%) was recorded in DD RAM 011, while it was the lowest (47.6%) in DD RAM 001. The highest TSS% ranged from 7.28% to 14.9%. Highest yield per plant (103.67 kg) was observed in DD RAM 001 and it was lowest in DD RAM 008 (5.99 kg). All the parameters showed poor correlation among them. Considering the factors of weight and size, edible portion %, TSS %, taste, sweetness, and yield per plant, the line DD RAM 011 was found better than others. Keywords: Variability; performance; velvet apple; hilly areas DOI: http://dx.doi.org/10.3329/bjar.v36i2.9248 BJAR 2011; 36(2): 223-230

scholarly journals Effect of Boron for Correcting the Deformed Shape and Size of Jackfruit

1970 ◽  
Vol 6 (1) ◽  
pp. 37-42 ◽  
Author(s):  
NK Halder ◽  
ATM Farid ◽  
MA Siddiky
Keyword(s):  
Agricultural Research ◽  
Age Groups ◽  
Fruit Weight ◽  
Research Station ◽  
Female Ratio ◽  
Four Levels ◽  
Fruit Characters ◽  
Male To Female ◽  
Boron Fertilization ◽  
Hill Soils

A field study on jackfruit (cv. local) was conducted at Brown Hill Soils (Eutrochrepts) of South Eastern Hilly regions (AEZ/29) under Hill Tracts Agricultural Research Station, Ramgarh, Khagrachri during the years of 2002-2003 and 2003-2004. The objective was to reduce the number of deformed fruits through boron fertilization and to obtain increased number of normal fruits/tree. Four levels of boron (0, 5, 10 and 15 g tree-1) and three age groups (10, 15 and 20 years) of jackfruit trees were considered in the study. The effect of boron application on plant of different age groups was found highly significant on flower and fruit characters of jackfruit. However, the highest level of boron applied (15 g tree-1) to the highest age group of plants (20 years) produced significant number of normal fruits (78 and 140 tree-1) and reduced the number of deformed fruits per tree in two consecutive cropping years 2002-2003 and 2003-2004, respectively. The highest mean normal fruits (111/tree) and lowest percent of deformed fruits (24%) were recorded due to application of highest level of B (15 g tree-1). The significant increasing in female flowers and male to female ratio contributed towards the increased number of normal fruits having more fruit weight and normal size. Key words: Jackfruit, boron, fertilization, deformed fruits. doi:10.3329/jard.v6i1.1655 J Agric Rural Dev 6(1&2), 37-42, June 2008

scholarly journals Genetic divergence of indigenous pummelo genotypes

2016 ◽  
Vol 3 (1) ◽  
pp. 37-43
Author(s):  
Md Sarowar Alam ◽  
Md Sultan Mia ◽  
Md Salim ◽  
Jubair Al Rashid ◽  
Md Saidur Rahman
Keyword(s):  
Genetic Divergence ◽  
Agricultural Research ◽  
Principal Component ◽  
Fruit Weight ◽  
Research Station ◽  
Mean Values ◽  
Cluster Distance ◽  
Minimum Number ◽  
Total Divergence ◽  
And Performance

The genetic divergence was studied in33pummelogenotypes using D2 statistics and principal component analysis at Regional Agricultural Research Station, BARI, Akbarpur, Moulvibazar during 2012 to 2014. The genotypes were grouped into 5 clusters and the maximum number of genotypes was included in cluster IV and V and the minimum number in cluster I. The inter cluster distance in all of the cases were higher than the intra cluster distance indicating wider genetic diversity among the accessions of different groups. The highest inter-cluster distance was observed between cluster I and II followed by cluster II and V and the lowest between III and IV. The highest intra- cluster distance was observed for the cluster II and the lowest for the cluster III. For cluster II, the highest mean values for plant height (6.13m), individual fruit weight (1141.67g), fruit length (13.03 cm) and breadth (13.15 cm), number of segments per fruit (14.41), number and weight of seeds per fruit (123.67 and 50.41g), yield per plant (50.94 kg) were observed. The first axis largely accounted for the variation among the pummelo accessions (26.16%) followed by second axis (18.75%). The first 8 axes accounted 90.56 % of the total variation. The characters individual fruit weight (g) and weight of seeds per fruit (g) showing positive value in both the vectors contributed maximum towards divergence. Considering magnitude of genetic distance, contribution of different traits toward the total divergence, magnitude of cluster means for different traits and performance the genotypes of cluster I, II, and IV may be considered as parents for future hybridization program.Res. Agric., Livest. Fish.3(1): 37-43, April 2016

scholarly journals Performance of Heat Tolerant Maize Genotypes under Moisture Stress during Rainy Season in Karnataka

2021 ◽  
pp. 9-16
Author(s):  
B. N. Shwetha ◽  
B. M. Chittapur ◽  
P. H. Kuchanur ◽  
B. G. Koppalkar ◽  
A. S. Halepyati ◽  
...  
Keyword(s):  
Rainy Season ◽  
Agricultural Research ◽  
Block Design ◽  
Canopy Temperature ◽  
Moisture Stress ◽  
Superior Performance ◽  
Semiarid Region ◽  
Research Station ◽  
Stress Studies ◽  
Heat Tolerant

This research was formulated to study the response of heat tolerant genotypes to prolonged period of water stress prevalent under rainfed situation. The trial was conducted at Agricultural Research Station, Dhadesugur, University of Agricultural Sciences, Raichur, Karnataka, India, during rainy season (kharif) 2019. The present study comprised of three stress tolerant genotypes (RCRMH 2, RCRMH 3 and RCRMH 4) with four moisture stress stages (imposed between 20-40, 40-60, 60-80 and 80-100 DAS) which were sown during June, July and August, and the design employed was Randomized complete block design. The results revealed that superior performance of RCRMH 3 (5321 kg ha-1) over other genotypes whether stressed or not, but all the genotypes were on par with each other in terms of physiological parameters viz., proline accumulation, relative water content, canopy temperature, NDVI, relative chlorophyll content and ASI, and these parameters exhibited good correlation with yield and hence found ideal for stress studies. The present study indicated that these cultivars sustain maize production under moisture stress condition and therefore, are suitable to semiarid region characterized by inclement weather.

scholarly journals Rootstock Effects on Growth and Quality of `Gala' Apples

HortScience ◽  
2004 ◽  
Vol 39 (6) ◽  
pp. 1231-1233 ◽  
Author(s):  
Yahya K. Al-Hinai ◽  
Teryl R. Roper
Keyword(s):  
Agricultural Research ◽  
Fruit Size ◽  
Apple Fruit ◽  
Fruit Weight ◽  
Research Station ◽  
Final Size ◽  
Crop Load ◽  
Yield Efficiency ◽  
Load Effects

The effect of rootstock on apple size is not clear due to inconsistent results of published studies. This study was conducted over 3 years at the Peninsular Agricultural Research Station near Sturgeon Bay, WI on 6-year-old `Gala' apple trees (Malus domestica Borkh) grafted on Malling 26 (M.26), Ottawa 3, M.9 Pajam 1, and Vineland (V)-605 rootstocks. Fruit diameter was measured weekly. Fruit weight and volume were estimated by a quadratic regression of weekly measurements. Fruit weight was positively correlated with fruit volume. Rootstock had no effect on fruit growth and final size even with the removal of crop load effects. Crop load was a highly significant covariate for fruit size, but canopy light interception and seed count were not. Trees on M.26 EMLA had slightly higher yield in 2000 but rootstock did not affect yield efficiency any year. Rootstock had no influence on fruit quality attributes during 2001; however, in 2002, fruit obtained from trees on Pajam-1 tended to be less firm. Generally, apple fruit size was influenced by crop load and other factors, but not by rootstock.

scholarly journals Performance of hybrid lines of pointed gourd (Trichosanthes dioica Roxb) for yield and yield attributes

2018 ◽  
Vol 43 (3) ◽  
pp. 383-393
Author(s):  
N Ara ◽  
M Moniruzzaman ◽  
KS Rahman ◽  
M Moniruzzaman ◽  
R Sultana
Keyword(s):  
Agricultural Research ◽  
Block Design ◽  
Morphological Characters ◽  
Fruit Weight ◽  
Research Station ◽  
Leaf Margin ◽  
Yield Attributes ◽  
Pointed Gourd ◽  
Hybrid Lines ◽  
Light Green

A field experiment was conducted at the Regional Agricultural Research Station, Ishurdi, Pabna during the growing season of 2013-14 with eighteen hybrid lines of pointed gourd and BARI Hybrid Patal -1 as check to observe their performances for yield, yield attributes and other morphological characters. The experiment was laid out in randomized complete block design with three replications. The maximum vine length (242.00 cm) and nodes/plant (18.30) was recorded from PG018xM2. Shoots/plant ranged from 12.50 (PG027xM2) to 4.66 (PG008 M1). The maximum number of fruits/plant (160.00) was obtained from PG009xM2 followed by PG012xM1 (154.66). Individual fruit weight was recorded highest (50.10 g) in PG027xM2, which was very close to PG008xM2 (48.00) and PG018xM2 (47.00 g). Weight of fruits/plant ranged from PG009xM2 (6.86 kg) to PG022xM1 (3.01 kg). The highest pulp weight was recorded in PG027xM2 (44.20 g) which was statistically similar to PG008xM2 (42.20 g). Three different leaf colour (light green, green and deep green), two types of leaf tip (pointed and blunt) and four types of leaf margin (slightly serrated, serrated, entire and undulated) were found among the hybrid lines. Four fruit colour (whitish, light green, green and dark green), four fruit stripes (no stripe, white, green white and light green) and three types of fruit curvature (slightly curved, curved and straight) were observed in different lines. The line PG009xM2 showed better performance in respect of fruits/plant and weight of fruits/plant and thus gave the highest yield (45.74 t/ha). The lines PG008xM2, PG007xM2, PG017xM2, PG027xM2 and PG014xM1 also produced better yield (39.23 - 35.58 t/ha). Therefore, the lines PG014xM1, PG007xM2, PG008xM2, PG009xM2 and PG017xM2 should be subjected for further evaluation to release as variety.Bangladesh J. Agril. Res. 43(3): 383-393, September 2018

scholarly journals Mean performance and heritability studies of some ridge gourd (Luffa acutangula L.) genotypes

2019 ◽  
Vol 6 (1) ◽  
pp. 45-55
Author(s):  
Nusrat Jahan Methela ◽  
Mohammad Shafiqul Islam ◽  
Nazmunnahar Mitu ◽  
Md Abdul Latif
Keyword(s):  
Block Design ◽  
Fruit Weight ◽  
Research Station ◽  
Fruit Length ◽  
Randomized Complete Block Design ◽  
High Heritability ◽  
The Mean ◽  
Luffa Acutangula ◽  
Weight Number ◽  
Fruit Diameter

In the present investigation, 29 genotypes of ridge gourd were grown during 2016-2017 at the experimental field of Regional Horticulture Research Station, Patuakhali, Bangladesh. The experiment was laid out in randomized complete block design with three replications. The mean sum of squares is due to various sources of variance for different characters of ridge gourd genotypes. The results indicated highly significant variation among the genotypes for the 11 characters studied viz., such as fruit length, fruit diameter, single fruit weight, number of fruits per plant, yield of fruit per plant. The genotype BD2975 showed the highest performance in fruit length (42.05cm) and weight of fruits (258.90g). While the genotype PK3 showed the highest performance in number of fruits per plant (28.67), respectively. Of eleven traits, eight showed high heritability (over 80%). The highest genotypic and phenotypic coefficients were recorded in the parameter fruit yield per plant (39.59% and 40.96%). Res. Agric., Livest. Fish.6(1): 45-55, April 2019

scholarly journals Effects of Short Day Conditioning, Chilling and GA3 Treatments to Yield and Fruit Quality in Strawberry Plug Transplants Aiming Early Fruit Production

2013 ◽  
Vol 41 (1) ◽  
pp. 263
Author(s):  
Emine ÖZDEMİR ◽  
Nurettin KAŞKA ◽  
Kazim GÜNDÜZ ◽  
Sedat SERÇE
Keyword(s):  
Fruit Quality ◽  
Total Yield ◽  
Titratable Acidity ◽  
Fruit Production ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Day Length ◽  
Fruit Characteristics ◽  
Short Day ◽  
Growing Seasons

In this study, we tested the effects of short day (SD), chilling (Ch) and gibberalic acid (GA3) treatments on the yield and fruit characteristics of ‘Camarosa’ and ‘Sweet Charlie’ plug plants under a freeze-protected greenhouse in Mediterranean conditions for two growing seasons in 2006-2007 and 2007-2008. The treatments included control (ambient day length and temperature); SD (8 h days) and ambient temperature; SD + Chilling (Ch) (18/12°C day/night temperatures); SD + Ch (10°C); SD + Ch (2°C); and, GA3 (10 ppm applied to the plants in November). In each growing season, the plug plants were planted in mid-August using bag culture. Yield, fruit weight, firmness, total soluble solids (SS), titratable acidity (TA), and SS/TA ratio were investigated. Considerable amounts of early yield (March and April) were recovered from ‘Sweet Charlie’; 116 and 72 g/plant in the first and second growing seasons, respectively. ‘Sweet Charlie’ also had consistently higher total yield than ‘Camarosa’ (457 vs. 400 g/plant in the 2006-2007 season and 446 vs. 406 g/plant in the 2007-2008 season). Treatment did not have a consistent effect on the fruit quality traits measured. The results indicated that although SD conditioning, Ch and GA3 treatments may have an effect on the total and early yield of strawberries, these effects may be cultivar-dependent and further regulated by environmental factors. Therefore, we propose that low-chilling varieties be utilized for early fruit production that can initiate flower buds in warmer, longer days.

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