scholarly journals Effect of Varieties and Planting Time on the Performance of Onion under Tropical Planes of Kerala

Author(s):  
S. Aruna ◽  
P. Indira ◽  
Jalaja S. Menon

Background: Onion (Allium cepa L.) is an important and indispensable item of every kitchen. It is used as a vegetable, spice and condiment and commands an extensive internal market. Even though onion is one of the major crops in India, its cultivation is not yet popular in Kerala. Successful onion production depends on the selection of varieties that are adapted to different conditions imposed by specific environment and best planting time. In this background, the current study aimed to evaluate five onion varieties in the tropical planes of Kerala and also to study the effect of different planting time and varieties on the performance of onion in Kerala.Methods: Five onion varieties were evaluated in four different dates of planting with an interval of fifteen days. Planting commenced from 10th November to 25th December 2017 in a split plot design with four replications. Yield attributing characters such as number of leaves per plant, leaf length, bolting percentage, neck thickness, bulb weight and yield were noted. Result: All the parameters showed a significant variation over different dates of planting. There was a significant variation in number of leaves per plant, leaf length, bolting percentage, total bulb yield and neck thickness among the varieties. Interaction effect of varieties and dates of planting was significant only for leaf length and total bulb yield. Highest bulb weight was recorded in 25th Nov. planting. Highest yield was recorded in 25th Nov. which was on par with 10th Dec. and 10th Nov. plantings. Arka Kalyan recorded a highest yield, which was statistically on par with Agrifound Dark Red and Arka Pragati. Varieties when planted on 25th Dec. recorded a lowest neck thickness. Agrifound White exhibited a non-bolting behavior in all the dates of planting. Overall performance and yield of onion was found to be better when planting was done on 25th November.

2013 ◽  
Vol 37 (4) ◽  
pp. 573-582 ◽  
Author(s):  
MH Rashid ◽  
AKMA Islam ◽  
MAK Mian ◽  
T Hossain ◽  
ME Kabir

Thirty genotypes collected from India, Burma, and Bangladesh were studied for thier genetic divergence using Mahalanobi´s D2 and Rao´s canonical analysis. Altogether five clusters were formed. The pattern of distribution of genotypes into five clusters was random demonstrating that the geographical isolation might not be the only factor causing genetic diversity. Leaf length and sulfur content contributed predominantly towards genetic divergence. Cluster III recorded the highest means for number of leaves per plant, leaf length, bulb length, plant height, and bulb yield. The results obtained from D2 analysis were confirmed by canonical analysis. The genotype G12 showed highest mean performance for moisture content (88.49%), G13 for leaf length (39.06 cm), G15 for neck diameter at vegetative stage (11.21 mm), bulb length (49.09 mm), plant height (64.82 cm) and as well as bulb yield (13.17 t/ha), G19 for percent sulfur content (0.84) and G26 for number of leaves per plant (12), respectively. DOI: http://dx.doi.org/10.3329/bjar.v37i4.14375 Bangladesh J. Agril. Res. 37(4): 573-582, December 2012


Author(s):  
M. Mustafa Haris ◽  
Khuwaja Safiullah Osmani ◽  
M. Mobin Younusi

A Field experiment was conducted to study the effect of different levels of sulphur on growth and yield of onion under drip irrigation on years (2013-2014) at RHREC, College of Horticulture, Bangalore. The experiment was conducted with a Randomized block design with four replications. The treatments comprised of 7 combinations (0, 15, 30, 45, 60, 75 and 90 kg S/ha) in which sulphur was supplied through gypsum. The results indicated significantly higher bulb yield (61.96t ha-1) and yield components like average bulb weight, bulb yield per plot and marketable bulb yield was obtained due to application of recommended dosage of fertilizer plus 45 kg S ha-1. The growth components viz., plant height, number of leaves, collar thickness and neck thickness showed significant with the application of result in the recommended dosage of fertilizer plus 45 kg S ha-1. Compared to other levels of sulphur.


2019 ◽  
Vol 37 (2) ◽  
pp. 204-209
Author(s):  
Valter C de Andrade Júnior ◽  
Amanda G Guimarães ◽  
Tiago D Firme ◽  
Aline Aparecida A Costa ◽  
Márcia Regina da Costa ◽  
...  

ABSTRACT Correlations and path analysis between characteristics can aid the selection of important attributes in breeding programs. Thus, the objective of this work was to perform genotypic, phenotypic correlations and path analysis under commercial yield of garlic bulbs, depending on morphological and agronomic variables. The experiment was carried out in 2017 at the Universidade Federal dos Vales do Jequitinhonha e Mucuri and Universidade Federal de Lavras, using ten garlic genotypes, eight trials and two commercial cultivars, Caçador and Jonas. We evaluated: plant height; number of leaves, total bulb number; total bulb mass, total bulb yield, marketable bulb yield and number of cloves per bulb. The genotypic and phenotypic correlations were positive and significant between marketable yield of bulbs with bulb mass, total yield and number of cloves per bulb, indicating that selection based on these characteristics will help increase the yield of garlic. However, only the number of cloves per bulb had a direct effect and a relevant indirect effect on the marketable yield of garlic.


2010 ◽  
pp. 132-140 ◽  
Author(s):  
MA Islam ◽  
MH Reza ◽  
SMAHM Kamal ◽  
MA Wazed ◽  
KM Islam

An experiment was conducted with a local cultivar of garlic to study the effects of planting date and gibberellic acid on the growth and yield of garlic at the field laboratory of the Department of Crop Botany, Bangladesh Agricultural University, Mymensingh during November 2001 to April 2002. Early planting influenced the plant height, leaf number, bulb diameter and total dry matter. With the delay in planting time starting from November 7, the yield was chronologically reduced in later plantings. Significantly the highest bulb yield (2.67 t/ha) was recorded when planting was done on November 7 and lowest yield (0.92 t/ha) was obtained from December 22 planted crop. Bulb yield was higher in control plants than those of GA3 treated plants. The interaction effects of planting date and different concentrations of GA3 differed significantly in respect of plant height, number of leaves, bulb diameter and dry weight of roots, leaves and bulbs and yield of garlic.


2017 ◽  
Vol 14 (3) ◽  
Author(s):  
Tri Dewi Andalasari ◽  
Yafisham Yafisham ◽  
Nuraini Nuraini

The use of ferns as orchid growing media feel expensive, so it is necessary to find an alternative media as a media surrogate fern that has been used. This study aimed to explore alternative growing media and fertilizer is good for growth and development of dendrobium orchids. Selection of a good planting medium and the proper use of fertilizers can be expected to support healthy plant growth and quality of orchids. experiments were conducted at Greenhouse Faculty of Agriculture Lampung University. The experiment was conducted using a randomized design perfectly with the treatment group factorial (6x2). The first factor is the type of growing medium consists of wood charcoal (M1), fern (M2), husk + sawdust (M3), acacia bark (M4), cocochip (M5) and coconut bark (M6). The second factor is the type of foliar fertilizer consists of Gandasil (P1) and Hyponex (P2). Data were analyzed by analysis of variance followed by HSD test at 5% level. The results showed that the use of media orchids ferns produce good vegetative growth, no different to use of planting medium charcoal, charcoal husk + sawdust, bark and bark acacia tree coconut, but it is different than the use of cocochip shown in variable plant height, number of leaves , leaf length and leaf width. While fertilizers orchid leaves that produce good growth is fertilizer of Gandasil


2016 ◽  
Vol 26 (3) ◽  
pp. 293-298 ◽  
Author(s):  
Anna Kapczyńska ◽  
Małgorzata Malik

The growth and flowering of ‘Rupert’ and ‘Ronina’ lachenalia (Lachenalia) in a greenhouse environment were manipulated by varying planting times and flurprimidol treatments. Bulbs were planted in November, December, January, and February. At each planting date, the following flurprimidol treatments were tested: soaking the bulbs before planting (15 and 30 mg·L−1) or a single foliar spray (15, 30, 45, and 60 mg·L−1). The results showed that foliar application of flurprimidol was ineffective in controlling inflorescence stem height and inflorescence length; only soaking bulbs of ‘Rupert’ in flurprimidol at the concentration of 30 mg·L−1 shortened the inflorescence stem height. Moreover, soaking bulbs in the concentration of 30 mg·L−1 may be recommended for potted lachenalia production, as shorter and wider leaves were obtained and every planted bulb emerged and flowered. The later the date of planting of the bulbs, the more quickly the plants began to flower. As planting time was delayed, inflorescence stem length and leaf length decreased, and the number of florets and leaf width increased. Soaking the bulbs in the retardant (30 mg·L−1) delayed the emergence of flowers for 5–6 days, but the retardant did not affect the number of leaves or the number of florets per inflorescence. Regardless of the factors applied, the two cultivars of lachenalia differed with respect to each of the analyzed traits.


2020 ◽  
Vol 8 (1) ◽  
pp. 111
Author(s):  
Fransiskus Palobo ◽  
Siska Tirajoh ◽  
Merlin K. Rumbarar ◽  
Muhammad Thamrin

One effort to increase corn production is through the use of new superior varieties (NSV) hybrid corn and composite corn. This study aims to determine the performance of growth and yields of four NSV hybrid corn and composite corn. The study was conducted in Merauke Regency, Papua since August to December 2018. The design used was Randomized Group Design (RGD) based on one factorial with 5 sub factors, each hybrid corn; HJ 21 Nasa variety, Nasa 29 variety and composite corn; Lamuru variety, Bisma variety, Sukmaraga variety. The results of the study at various ages of plant height were not affected significantly, the number of leaves were significantly affected by 30 days after planting (DAP) and at harvest time. Leaves width at various ages had no significant effect, while leaves length and stem diameter were all observed at the highest leaf length with the effect of 30 days after planting (DAP) Nasa 29 (75 cm) but 60 days after planting (DAP) and at harvest HJ 21 Agritan 93 cm. Then the largest stem diameter of Nasa 29 (1.7 cm) was 30 days after planting (DAP) and 60 days after planting (DAP)- at harvest was each 2.5 cm. Difference of the longest cob length of HJ 21 agritan 38.4 cm, diameter of the largest cob 5.1 cm, the highest number of lines per cob 15.8 seeds, the heaviest weight of 1000 HJ 21 Agritan 420.6 g, heaviest dry harvest Nasa 29 (12.4 t/ha) and the heaviest dry pipelines Nasa 29 (9.2 t/ha). The overall performance of the results significantly affected both hybrid corn and composite corn.


2015 ◽  
Vol 39 (3) ◽  
pp. 529-545 ◽  
Author(s):  
Saima Sultana ◽  
Alok Kumar Paul ◽  
Deeder Sultana ◽  
Jharna Rani Sarker

An experiment was carried out to assess the effect of integrated organic and inorganic nitrogen on growth and nutrient concentration in summer onion (Allium cepa var. BARI Piaz-2). The study was done on a silty clay loam soil of Sher-e-Bangla Agricultural University Farm, Dhaka during kharif (March to October) season. The soil of the experimental site belongs to the Tejgaon series of AEZ No. 28, Madhupur Tract, classified as Shallow Red Brown Terrace Soils in Bangladesh soil classification system. Twelve treatments were used in the experiment and in each treatment, different combinations of urea, cowdung, and vermicompost were used to supply nitrogen (N) at the rate of 120 kg/ha. The treatments were arranged in a RCBD with three replications included- control or no fertilizer supplied (T1), 120 kg N/ha supplied from urea (T2), 100 kg N/ha supplied from urea with 20 kg from cowdung (T3), 100 kg N/ha supplied from urea with 20 kg from vermicompost (T4), 80 kg N/ha supplied from urea with 40 kg from cowdung (T5), 80 kg N/ha supplied from urea with 40 kg from vermicompost (T6), 60 kg N/ha supplied from urea with 60 kg from cowdung (T7), 60 kg N/ha supplied from urea with 60 kg from vermicompost (T8), 40 kg N/ha supplied from urea with 80 kg from cowdung (T9), 40 kg N/ha supplied from urea with 80 kg from vermicompost (T10), 120 kg N/ha supplied from cowdung (T11), 120 kg N/ha supplied from vermicompost (T12). Data on plant height, number of leaves, leaf length, bulb length, and bulb weight of onion were recorded. Samples of bulb and leaf were analyzed for determining the total nitrogen, phosphorous, potassium, and sulphur content. Height of plant ranged from 24.25 to 39.25 cm with lowest and highest value from T1 and T5, respectively. Like plant height, the longest leaf length (34.35 cm) and bulb length (2.79 cm) was observed in T5, whereas the shortest leaf length (21.20 cm) and bulb length (2.40 cm) was recorded in T1 treatment. Similarly treatment T5 showed the highest value for both bulb weight (30.40 g) and bulb yield (12.16 t/ha), whereas the lowest bulb weight (14.90 g) and bulb yield (5.96 t/ha) was obtained from T1 treatment. Statistically insignificant variations were recorded on number of leaves/plant. The highest nitrogen, phosphorous, potassium and sulphur content in bulb (2.30, 0.185, 1.71 and 0.96%, respectively) and in leaf (2.91, 0.183, 2.45, and 0.98%, respectively) were recorded in treatment T5. Whereas, the lowest nitrogen, phosphorous, potassium, and sulphur content in bulb (1.41, 0.055, 0.89, and 0.66%, respectively) and in leaf (2.15, 0.053, 1.71 and 0.63%, respectively) was found in T1. Therefore, the overall results suggest that treatment T5 which supplied 40 kg N/ha from cowdung and rest 80 kg from inorganic urea resulted in maximum plant growth and nutrient concentration and can be recommended for optimum production of summer onion DOI: http://dx.doi.org/10.3329/bjar.v39i3.21995 Bangladesh J. Agril. Res. 39(3): 529-545, September 2014


2021 ◽  
Vol 17 (34) ◽  
pp. 208
Author(s):  
Koffi Eric-Blanchard Zadjéhi ◽  
Diarrassouba Nafan ◽  
Yao Saraka Didier Martial ◽  
Sie Raoul Sylvère

Le manque de méthodes standardisées pour la pépinière d’oignon a suscité la présente étude. Elle a pour objectif d’évaluer deux pratiques culturales de pépinière d’oignon à travers les caractéristiques végétatives des plantules. À cet effet cinq variétés (Bati, Damani, Cara, Karibou et Safari) et deux milieux de conduite de pépinière : terre et alvéole ont été mis en comparaison sur le site expérimental de l’Université Peleforo GON COULIBALY de Korhogo de janvier à février 2020. Sur terre, trois doses de semis (3, 4 et 5 g/m2) et dans les alvéoles trois graines par poquet ont été expérimentées. Les données morphologiques ont été collectées 40 jours après semis. Le logiciel SPSS 22.0 a été utilisé pour le traitement statistique des données collectées. Une analyse de variance incorporant la comparaison des moyennes selon Newman et Keuls au seuil de 5% a été réalisée pour comparer les caractéristiques morphologiques des différentes variétés entre elles. Il ressort de cette étude que les plantules élevées dans les alvéoles ont eu en moyenne les tailles les plus élevées (17,32 cm). Sur terre, les tailles ont varié de 14,77 cm (dose de 05 g/m2) à 16,09 cm (dose 03 et 04 g/m2). Les doses de semis 03 et 04 g/m2 ont enregistré les plantules les plus robustes relativement au nombre de feuilles (03), les poids frais (0,35 g) et sec (0,035 g) et le taux de matière sèche (10%). Les variétés Damani, Karibou et Safari ont eu les meilleures performances relativement aux caractéristiques morphologiques. La robustesse de la plantule est corrélée positivement à sa taille et au nombre de feuilles. Au vu des résultats, la pépinière d’oignon peut être conduite dans les alvéoles ou sur terre à la dose 04 g/m2. La sélection des plantules en pépinière peut se faire en se basant uniquement sur la taille de la plantule et le nombre de feuilles. The lack of standardized methods for the onion nursery prompted this study. Its objective was to evaluate two cultivation practices of the onion nursery through the vegetative characteristics of the seedlings. For this purpose, five varieties (Bati, Damani, Cara, Karibou and Safari) and two nursery management: soil and well plate, were compared on the experimental site of Peleforo GON COULIBALY University in Korhogo from January to February 2020. On soil, three doses of seeding (3, 4 and 5 g/m2) and, in the plate, 3 seeds/holes were tested. Morphological data were collected 40 days after sowing. In this sample, SPSS 22.0 software was used for statistical data processing. An analysis of variance incorporating the comparison of means according to Newman and Keuls at the 5% threshold was used to compare the morphological characteristics of the different varieties. It appears from this study that the seedlings reared in the well plate were averagely the highest with 17.32 cm. On soil, the heights varied from 14.77 cm (dose 05 g/m2) to 16.09 cm (dose 03 and 04 g/m2). Seeding doses of 03 and 04 g/m2 recorded the most robust seedlings in relation to the number of leaves (03), fresh (0.35 g) and dry (0.035 g) weights and dry matter rate of 10%. The Damani, Karibou and Safari varieties had the best performances concerning morphological characteristics. The robustness of the seedling is positively related to its size and the number of leaves. Besides well pate, a seeding rate of 04 g/m2 can be recommended for the management of the nursery on soil. The selection of seedlings in the nursery can be done based only on the size of the seedling and the number of leaves.


2017 ◽  
Vol 14 (1) ◽  
Author(s):  
Tri Dewi Andalasari ◽  
Yafisham Yafisham ◽  
Nuraini Nuraini

The use of ferns as growing media orchids ranging deemed expensive , so it is necessary to find an alternative media as a media surrogate fern that has been used .This study aimed to explore alternative growing media and fertilizers are good for growth and development of dendrobium orchids . Selection of a good planting medium and the proper use of fertilizers can be expected to support healthy plant growth and quality of orchids .Greenhouse experiments were conducted at the Faculty of Agriculture University of Lampung . Treatment arrangement was factorial by randomized complete block design with three replication. The treatment is done byp factorial ( 6x2 ) . The first factor is the type of growing medium consists of wood charcoal ( M1 ) , ferns ( M2 ) , husk + sawdust ( M3 ) , acacia bark ( M4 ) , cocochip ( M5 ) and coconut bark ( M6 ) . The second factor is the type of foliar fertilizer consists of Gandasil ( P1 ) and Hyponex ( P2 ) . Data were analyzed by analysis of variance followed by HSD test at 5% level .The results showed that the use of media orchids ferns produce good vegetative growth , not unlike the use of planting medium charcoal , charcoal husk + sawdust , bark and bark acacia tree oil , but it is different than the use of cocochip shown in variable plant height , number of leaves , leaf length and leaf width . While foliar fertilizers that produce good growth is fertilizer Gandasil . Key word: dendrobium , growing media , foliar fertilizers


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