scholarly journals Effect of sowing date and plant spacing on seed production of cauliflower

2015 ◽  
Vol 40 (3) ◽  
pp. 491-500
Author(s):  
MF Hossain ◽  
N Ara ◽  
MR Uddin ◽  
MR Islam ◽  
MG Azam
Keyword(s):  
Seed Production ◽  
Seed Yield ◽  
Agricultural Research ◽  
Sowing Date ◽  
Research Station ◽  
Plant Spacing ◽  
Sowing Dates ◽  
North Western ◽  
Number Of Seeds ◽  
Number Of Branches

The experiment was conducted at Regional Agricultural Research Station, Ishurdi, Pabna during rabi season of 2011-2012 and 2012-2013 to find out the appropriate sowing date and optimum plant spacing for seed production of cauliflower (var. BARI Phulcopi-1). Four sowing dates viz. 20 September, 1 October, 10 October and 20 October and three plant spacing viz. 60 cm × 50 cm, 60 cm × 60 cm and 60 cm × 70 cm were used as treatment variables. Significant variation in seed yield and yield contributing characters of cauliflower were observed due to execution of different sowing dates and plant spacing. Number of branches plant-1, number of pods plant-1 and number of seeds pod-1 showed the highest in 1 October sowing as a result the highest seed yield (361.69 kgha-1) was obtained from same date of sowing. Sowing on 10 October and 20 October reduced seed yield drastically compared to that obtained from 1 October sowing. The lowest seed yield (188.54 kgha-1) was obtained from 20 October sowing. On the contrary, closer spacing (60 cm × 50 cm) produced the highest seed yield (315.88 kgha-1) and the wider spacing (60 cm × 70 cm) produced the lowest seed yield (254.07 kgha-1). However, combination of 1 October sowing with 60 cm × 50 cm plant spacing produced the highest seed yield (414.81 kgha-1) due to higher number of seeds pod-1. The seed yield decreased after 10 October sowing irrespective of plant spacing. So, early sowing (1 October) with closer spacing (60 cm× 50 cm) would be economically profitable for cauliflower seed production in North-Western part of Bangladesh.Bangladesh J. Agril. Res. 40(3): 491-500, September 2015

Genetic Analysis of Pigeonpea [Cajanus cajan (L.) Millsp.] Hybrids for Yield and Yield Attributes

2020 ◽  
Author(s):  
Sandeep S. ◽  
Sujatha K. ◽  
Manikya Minnie C. ◽  
Sudha Rani C.
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Agricultural Research ◽  
Test Weight ◽  
Research Station ◽  
High Genetic Diversity ◽  
Yield Attributes ◽  
Pod Length ◽  
Number Of Seeds ◽  
Number Of Branches

An experiment was carried-out with forty-eight hybrids of pigeonpea and two checks for nine characters at Agricultural Research Station, Tandur (Professor Jayashankar Telangana State Agricultural University). Analysis of variance revealed significant differences among the hybrids for all the nine characters studied. The results of genetic parameters revealed that, high genotypic (GCV) and phenotypic coefficients of variations (PCV) were observed for seed yield and number of pods per plant. Six characters viz., number of branches per plant, number of pods per plant, number of seeds per pod, pod length, test weight and seed yield exhibited high heritability estimates coupled with high genetic advance as per cent of mean which suggested that these traits were amenable for further improvement following simple selection methods. Character association revealed significant positive association of seed yield with plant height,number of branches per plant, number of pods per plant, number of seeds per pod and pod length. Based on divergence studies, the hybrids were grouped into nine clusters in Tocher’s method, cluster II (14 hybrids) was the largest followed by cluster I (13), cluster VI (9), cluster IV (6), cluster IX (4) and the remaining clusters were solitary (III, V, VII and VIII). Out of the nine characters studied, seed yield, days to 50% flowering, test weight and plant height contributed 85.62 per cent of the total divergence and these traits were found to be important factors for genetic differentiation in the hybrids. The overall results of the study revealed that, hybrids under cluster IV and VIII and cluster VII and VIII had maximum and minimum inter cluster distances respectively and possessing high genetic diversity for the characters viz. plant height, number of branches per plant, number of seeds per pod and yield.

scholarly journals Effect of Planting Windows for Seed Production of Soybean (Glycine max L.) in off Season under Kaylan Karnataka Region

2020 ◽  
pp. 130-138
Author(s):  
K. Lokesh ◽  
. Basavegowda ◽  
Mallikarjun Reddy ◽  
. Siddaram ◽  
P. D. Suhas ◽  
...  
Keyword(s):  
Seed Production ◽  
Seed Yield ◽  
Seed Quality ◽  
Agricultural Research ◽  
Research Station ◽  
Planting Time ◽  
Agricultural Research Station ◽  
Yield And Quality ◽  
Sowing Dates

Aim: To identify the best planting time for obtaining higher seed yield and quality of Soybean in off season. Study Design: Randomized completely block design (RCBD) Place and Duration of Study: Agricultural Research Station, Halladkere, Bidar, Karnataka between 2016 and 2017. Methodology: A field experiment was conducted at Agricultural Research Station, Halladkere, Bidar to find out the best off season planting time for quality seed production of Soybean. The certified seeds of soybean varieties, JS-335 and Dsb-21 were sown with recommended package of practices at appropriate field condition from November to February at every fortnight with a spacing of 30 cm X 10 cm. The quality parameters related to seed were carried out in the laboratory of seed science department. Further, soybean seeds were treated with fungicide (carbendazim 25% + mancozeb 75%) at the rate of 3 gram per kg of seeds. Results: From the present investigation, it was observed that among the different sowing dates, soybean varieties (JS 335 and DSb 21) sown during 1st fortnight of November recorded significantly higher plant growth parameters as well as seed yield followed by 2nd fortnight of November during off season. Further, climatic factors like rainfall, maximum and minimum temperature and relative humidity played a major role in the off season to produce higher seed yield and quality of Soybean. Conclusion: Among various sowing dates, November 1st Fortnight sowing resulted in highest seed yield with better seed quality in both cultivars (JS-335 and Dsb-21) of soybean.

Seed yield and quality of soybean [Glycine Max (L.) Merill] as influenced by cultivar and sowing date in vertisols of Andhra Pradesh during kharif season

2017 ◽  
Author(s):  
K. Prabhakar ◽  
Y. Padmalatha ◽  
K. Venkataramanamma ◽  
P. Muniratnam ◽  
V. Radhakrishnamurthy
Keyword(s):  
Seed Yield ◽  
Andhra Pradesh ◽  
Agricultural Research ◽  
Sowing Date ◽  
Germination Percentage ◽  
Research Station ◽  
Yield And Quality ◽  
Sowing Dates ◽  
Glycine Max L

In order to study the effect of planting date and cultivar on seed yield and germinating ability of soybean, an experiment was conducted for two seasons (2014 – 15 and 2015 – 16 ) at Regional Agricultural Research Station, Nandyal, Andhra Pradesh. Two popular varieties, viz., JS-335 and JS-93-05 were sown on four sowing dates i.e. July 2nd fortnight (FN), August 1st FN, August 2nd FN and September 1st FN during the two consecutive kharif crop seasons in FRBD design, replicated thrice. The variety JS-335 recorded significantly higher yield (1296 kg ha-1) than JS-93-05 (690 kg ha-1) . Early sowings during July 2nd FN and August Ist FN recorded significantly at par yields (1087 kg ha-1, 1101 kg ha-1 respectively) with good initial and aging germination percentage (81%, 58.8% respectively). Though September 1st FN sown crop recorded significantly lowest seed yield (860 kg ha-1), the initial and aging germination percentage were highest (88.6%, 66.0%).

scholarly journals Effective Seed Yield and Flowering Synchrony of Parents of CIMMYT Three-Way-Cross Tropical Maize Hybrids

Agriculture ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 161
Author(s):  
Alberto A. Chassaigne-Ricciulli ◽  
Leopoldo E. Mendoza-Onofre ◽  
Leobigildo Córdova-Téllez ◽  
Aquiles Carballo-Carballo ◽  
Félix M. San Vicente-García ◽  
...  
Keyword(s):  
Seed Production ◽  
Seed Yield ◽  
Grain Filling ◽  
Sowing Date ◽  
Planting Density ◽  
Planting Dates ◽  
Flowering Synchrony ◽  
Sowing Dates ◽  
Grain Filling Period ◽  
Hybrid Maize

Genotype, environmental temperature, and agronomic management of parents influence seed yield in three-way cross hybrid maize seed production. The objective of this research was to generate information on the seed production of six three-way cross hybrids and their progenitors, adapted to tropical lowlands. Data on days to—and duration of—flowering, distance to spike and stigmas, and seed yield of five female single crosses and five male inbred lines were recorded for different combinations of four planting densities and four sowing dates in Mexico. The effect of planting density was not significant. The male inbred line T10 was the earliest and highest seed yield and T31 the latest, occupying second place in yield. The single crosses T32/T10 and T13/T14 were the earliest and had the highest effective seed yield. At the earliest sowing date, the females were later in their flowering, accumulated fewer growing degree days (GDD), and obtained higher yields since the grain-filling period coincided with hot days and cool nights. To achieve greater floral synchronization and therefore greater production of hybrid seed, differential planting dates for parents are recommended based on information from the accumulated GDD of each parent. The three-way cross hybrids were classified according to the expected seed yield of the females and the complexity in the synchronization of flowering of their parents.

Sowing date affects yield components of canarygrass seed

2003 ◽  
Vol 83 (2) ◽  
pp. 357-362 ◽  
Author(s):  
J. L. Bodega ◽  
M. A. De Dios ◽  
M. M. Pereyra Iraola
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Dry Matter ◽  
Developmental Stages ◽  
Block Design ◽  
Sowing Date ◽  
Growing Seasons ◽  
Sowing Dates ◽  
Four Blocks ◽  
Number Of Seeds

Canarygrass (Phalaris canariensis L.) crops are sown from June to mid-September in the southeastern area of the province of Buenos Aires, Argentina. Sowing dates in this range result in different growing temperatures and photoperiods that affect the duration of developmental stages, biomass production, and seed yield and its components. For Argentina, there are no reported studies that address these effects. This study on the effects of sowing date was conducted during four growing seasons (1996–1999) at the Instituto Nacional de Tecnologí a Agropecuaria (INTA) Experimental Station at Balcarce, Argentina, using a population provided by Dr. Jaime Lloveras, University of Leyda, Spain. Different seeding dates were chosen from June to mid-September. The experiment was a randomized complete block design with four blocks. When the sowing date was delayed, total dry matter (DM) decreased. For early sowing dates seed yield was constant, but after 10 August it was reduced by 1.5% for each day of delay. Earlier sowing increased the duration of pre-anthesis development with greater uniformity in panicle size and the number of seeds. Seed yield was related lin early to the number of seeds and plant dry matter yield (DMY). The rate of progress from emergence to anthesis (1/days from emergence to anthesis) was proportional to the mean photoperiod. Under the environmental conditions in Balcarce, the accumulated required thermal units for anthesis was reduced when sowing was delayed from June to September. This reduction was related to the photoperiod and was estimated as –189.3 growing degree-days per hour of photoperiod increment. Key words: Canarygrass, seed yield, sowing date, yield components

scholarly journals Effect of head decapitation and planting density on quality seed production of sprouting broccoli (Brassica oleracea var. italica L.)

2015 ◽  
Vol 7 (1) ◽  
pp. 471-476 ◽  
Author(s):  
D.K. Mehta ◽  
Tarun Singh ◽  
Rajesh Kanwar
Keyword(s):  
Brassica Oleracea ◽  
Seed Production ◽  
Seed Yield ◽  
Seed Quality ◽  
Quality Parameters ◽  
Planting Density ◽  
Plant Spacing ◽  
Yield And Quality ◽  
Number Of Branches

A study was carried out to evaluate the effect of head decapitation and planting density on plant growth, seed yield and quality of sprouting broccoli, Brassica oleracea var. italica L. using cultivar ‘Green Head’. The twenty treatments comprised of combinations of four head decapitation methods viz., D1 (decapitation of primary head at appearance and harvesting seeds from secondary heads), D2 (decapitation of primary head at marketable stage and harvesting seeds from secondary heads), D3 (removal of secondary heads at appearance and harvesting seeds primary head) and ‘D4’ (No decapitation- control) and five planting densities viz., S1 (60x60 cm), S2 (60x45 cm), S3(45x45 cm), S4 (60x30 cm), and S5 (45x30 cm). Decapitation of primary head at appearance and harvesting seeds from secondary heads (D1) and planting density S3 (45x45 cm) independently as well as in combination gave highest seed yield per plot and per hectare. This combination was also found comparable to other combinations for other characters like days to 50% flowering, days to seed harvesting, plant height at harvesting (cm), number of branches per plant, number of siliqua per plant, siliqua length (cm), number of seeds per siliqua and seed quality parameters. Therefore, it is suggested that decapitation of primary head at appearance and harvesting seeds from secondary heads (D1) in combination with plant spacing of 45x45 cm i.e. D1S3 can be recommended for commercial seed production of sprouting broccoli.

scholarly journals Studies on growth and yield characters of chickpea (Cicer arietinum L.) varieties suitable for mechanical harvesting

2020 ◽  
Vol 7 (3) ◽  
pp. 634-637
Author(s):  
S. Jaffar Basha ◽  
◽  
V. Jayalakshmi ◽  
S. Khayum Ahammed ◽  
N. Kamakshi ◽  
...  
Keyword(s):  
Seed Yield ◽  
Agricultural Research ◽  
Pooled Analysis ◽  
Test Weight ◽  
Growth And Yield ◽  
Research Station ◽  
Rabi Season ◽  
Higher Plant ◽  
Number Of Branches ◽  
Plot Design

The growth and yield characters of chickpea varieties suitable for mechanical harvesting were evaluated through field experiment conducted for three consecutive years (2016__17 to 2018__19) during rabi season on vertisols under rainfed conditions at Regional Agricultural Research Station, Nandyal, Andhra Pradesh. The investigation was carried out in split plot design with three replications. Two plant geometries (30.0 × 10.0 cm and 22.5 × 10.0 cm) were assigned to main plots and six chickpea varieties (viz., GBM 2, Dheera, CSJ 515, HC 5, Phule G 08108 and BRC 1) were assigned to sub plots. Pooled analysis of experimental results indicated that significantly higher number of branches per plant (8.7) and number of pods per plant (31.1) and test weight (24.3 g) were observed under 30.0 × 10.0 cm when compared to 22.5 × 10.0 cm. Higher plant height (44.8 cm), height of lowest pod bearing branch (30.0 cm), lower days to 50 % flowering (42.1 days) and higher test weight (31.2 g) were observed in Dheera. Higher number of branches per plant (9.2) and number of pods per plant (34.2) were observed in GBM 2. Higher seed yield was observed in Phule G 08108 (1708 kg ha-1) which is followed by GBM 2 (1675 kg ha-1) Dheera (1569 kg ha-1) and BRC 1 (1493 kg ha-1). Higher harvest index (56.4%) was also observed in Phule G 08108. Chickpea varieties GBM2, Dheera and BRC1 were best suitable for mechanical harvesting and higher seed yield due to their excellent morphology.

scholarly journals Combining ability analysis for seed yield and its attributes in Indian mustard [Brassica juncea (L.) Czern and Coss]

2021 ◽  
Vol 23 (3) ◽  
pp. 319-323
Author(s):  
D.A. PATEL ◽  
Keyword(s):  
Seed Yield ◽  
Combining Ability ◽  
Seed Weight ◽  
Block Design ◽  
Indian Mustard ◽  
Research Station ◽  
Randomized Block Design ◽  
Additive Gene ◽  
Number Of Seeds ◽  
Number Of Branches

The experimental material comprised of forty eight genotypes consisting of five Mori based CMS lines and seven Mori based fertile lines crossed in line x tester mating design. The resultant thirty five hybrids along with their twelve parents and standard check (GDM 4) were evaluated in randomized block design at Castor-Mustard Research Station, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar during, rabi 2018-2019. The analysis of variance for combining ability revealed that variance due to gca was significant for all the characters except number of seeds per siliqua, seed yield per plant and 1000 seed weight. Whereas, variance due to sca was significant for all the traits. This indicates significant contribution of hybrids for specific combining ability variance component. The ratio of σ2gca/σ2sca below than unity for days to maturity, siliqua length, number of seeds per siliqua, seed yield per plant, 1000 seed weight and oil content which suggested greater role of non-additive gene action in the inheritance of these traits. Among the parents, female SKM 9928 and Kranti were good general combiner for seed yield per plant, total number of branches per plant and total number of siliquae per plant. Whereas, male parent Mori 'R' 1-18 was good general combiner for seed yield per plant, total number of branches per plant and total number of siliquae per plant. Best three hybrids which possessed significant positive SCA effects for seed yield per plant were SKM 301 x SKM 303, SKM 9928 x Pusa Agrani and Kranti x Mori ‘R’ 1-18.

scholarly journals Effect of sowing date and plant density on bolting of four sugar beet (Beta vulgaris L.) varieties

2015 ◽  
Vol 4 (2) ◽  
pp. 256-270
Author(s):  
Entessar Al-Jbawi ◽  
Waeel Sabsabi ◽  
Gharibo Gharibo ◽  
Abd El-Muhsien Al-Sayed Omar
Keyword(s):  
Sugar Beet ◽  
Plant Density ◽  
Agricultural Research ◽  
Sowing Date ◽  
The Other ◽  
Research Station ◽  
Sowing Dates ◽  
Plant Densities ◽  
Autumn Sowing ◽  
Plot Design

This experiment was conducted in Homs Agricultural Research Station, Homs, Syria during 2007/2008 and 2008/2009 seasons to study the effect of sowing date and plant density on bolting for four sugar beet varieties, tow are monogerm varieties i.e. Parade and Etna, while the other are multigerm varieties i.e. Nadir and Mammoth. Three sowing dates were applied, began from 15/9 to 15/10, the interval between the sowing dates was 15 days. Three plant densities were executed (133 000, 100 000 and 80 000 plantha-1). Split plot design was used with three replicates. The combined analysis exhibited the significant effect of varieties (V), sowing dates (S), and plant densities (D) on all types of bolting (Early, medium, late and total). Least significant test (L.S.D 0.05) clarified that early autumn sowing (15/9 and 1/10) increased total bolting percent 74.86 and 44.88 % respectively, as compared with date (15/10) 15.57% (control). The plant density (133 000 plant ha-1) decreased total bolting percent 43.56% as compared with the other plant densities (80 000 and 100 000 plant ha-1) 46.35 and 45.40% respectively. The results showed that the monogerm varieties were superior and more resistant to bolting as compared with the multigerm ones. DOI: http://dx.doi.org/10.3126/ije.v4i2.12647 International Journal of Environment Vol.4(2) 2015: 256-270

scholarly journals Effect of Sowing Dates on the Yield of Sunflower

2015 ◽  
Vol 18 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Bulbul Ahmed ◽  
Mousumi Sultana ◽  
Jesmin Zaman ◽  
Santos Kumar Paul ◽  
Md Mokhlesur Rahman ◽  
...  
Keyword(s):  
Agricultural Research ◽  
Maximum Yield ◽  
Sowing Date ◽  
Research Field ◽  
Research Station ◽  
Rabi Season ◽  
Agricultural Research Institute ◽  
Seed Formation ◽  
Yield Attributes ◽  
Sowing Dates

The experiment was carried out at Agronomy Research field of Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur and Regional Agricultural Research Station, Hathazari, Chittagong to find out optimum sowing date of sunflower during rabi season 2012-13. The sunflower var. BARI Surjomukhi-2 was used. Five sowing dates; 10 November, 20 November, 30 November, 10 December and 20 December were tested. It was revealed that yield and yield attributes of sunflower were significantly influenced by sowing dates. The maximum plant height (172.13 cm), head diameter (18.33), weight of seed / per head (66 g), 1000- seed weight (68 g) and yield (2.5 t ha?1) were obtained from 20 November sowing. The lowest yield (1.83 t ha?1) was obtained from 20 December sowing. The 20 November sowing received the higher duration for maturity (127 days), first flowering (57 days) and seed formation (20 days) while 20 December sowing showed shorter duration for maturity, first flowering and seed formation of 119, 54 and 14 days respectively. It was concluded that the 20 November sowing would be the optimum time of sowing for achieving maximum yield of sunflower.Bangladesh Agron. J. 2015, 18(1): 1-5

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