Studies of Genetic Variability of Tomato (Solanum lycopersicum L.) Hybrids under Protected Environment

2021 ◽  
Vol 12 (5) ◽  
pp. 264-270
Author(s):  
Kanchhi Maya Waiba ◽  
◽  
Parveen Sharma ◽  
Kasi Indra Kumar ◽  
Shivani Chauhan ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Block Design ◽  
Himachal Pradesh ◽  
Climatic Zones ◽  
Hybrid Combination ◽  
Solanum Lycopersicum L ◽  
Horticultural Traits ◽  
Randomized Complete Block Design ◽  
The Mean ◽  
The One

A study was conducted to estimate genetic variability among horticultural traits and to evaluate these hybrids for protected environmental cultivation during spring-summer season, 2019 (April-September). Twelve hybrids of tomato were evaluated under modified naturally ventilated poly-house at the Vegetable Research Farm, Department of Vegetable Science and Floriculture, Chaudhary Sarwan Kumar Himachal Pradesh Krishi Vishvavidyalaya following Randomized Complete Block Design (RBD) with three replications, Palampur, Himachal Pradesh, India. Based on the mean performance, hybrid CLN2126×CLN1314G was found promising for yield plant-1 (4.37 kg) yield m-2 area (26.24 kg), TSS (6.53 °B), days to 50% flowering (26.66 days), days to first picking (67.33 days), number of fruits per plant (64.01), inter-nodal length (17.71 cm), number of nodes plant-1 (16.70 nodes) and plant height 316.87 cm). So, an ideal plant type producing a higher yield per plant will be the one having traits like a higher number of fruits per plant, and lesser days to first picking. It is concluded that the hybrid combination CLN2126×CLN1314G is promising for these traits. This can be included for multi-locational testing in different agro-climatic zones of Himachal Pradesh under protected environment.

scholarly journals Morpho-physiological Traits and Mineral Composition on Local Maize Population Growing in Agro Ecological Conditions in Kosova

2013 ◽  
Vol 5 (2) ◽  
pp. 232-237
Author(s):  
Sali ALIU ◽  
Imer RUSINOVCI ◽  
Shukri FETAHU ◽  
Kemajl BISILIMI
Keyword(s):  
Block Design ◽  
Physiological Traits ◽  
Cellulose Content ◽  
Maize Breeding ◽  
Maize Population ◽  
Maize Populations ◽  
Randomized Complete Block Design ◽  
Morphological And Physiological Traits ◽  
The Mean ◽  
Field And Laboratory Conditions

Twelve local maize populations were evaluated at the experimental farm, University of Prishtina, Kosovo. The study was conducted to assess the magnitude of genetic variation in local maize populations for different morphological-physiological and chemical composition under field and laboratory conditions. Randomized complete block design (RCBD) with three replications was used for laying out the experiment. The results showed that there were significant differences for most morphological and physiological traits under study. The mean grain yield of all populations was 102.96 g plant-1. The protein and oil contents ranged between 11.53 to 9.43% and 4.23 to 4.87% respectively. The cellulose content varied from 6.03 to 6.37%. There were also big differences regarding phenotypic correlations. The present study revealed considerable amount of diversity among the local maize populations which could be manipulated for further improvement in maize breeding.

scholarly journals Agronomic Efficiency of Hybrids of Corn to Nitrogen, Phosphorus and Potassium Targeting Fresh Corn

2019 ◽  
Vol 11 (9) ◽  
pp. 120
Author(s):  
Cecília L. P. Resende ◽  
Leandro F. Damaso ◽  
Mylla C. R. Ávila ◽  
Daniel D. C. Carvalho ◽  
Patrícia G. S. Melo ◽  
...  
Keyword(s):  
Block Design ◽  
Corn Hybrids ◽  
Agronomic Efficiency ◽  
Quality Of Water ◽  
Randomized Complete Block Design ◽  
Technological Level ◽  
Phosphorus And Potassium ◽  
The One ◽  
Nitrogen Phosphorus

The efficiency and responsiveness agronomic to the main macronutrients is becoming increasingly important due to the risk of supply, since it is a finite resource. In addition, excess fertilizer decreases the quality of water and air. Thus, the objective of this work was to assess the corn hybrids in terms of their efficiency and responsiveness to nitrogen (N), phosphorus (P) and potassium (K), and identify the ones most suitable for fresh consumption, according to the product type and technological level to be adopted by the farmer. The randomized complete block design in a 10 × 3 (hybrids and doses) factorial scheme was adopted for the experiment, with three replications, for two season crops (2013/14 and 2014/15). Ten hybrids (2B512PW, 2B587PW, 2B707PW, 30F35HR, 30F53YH, AG1051, BRS1055, BM3061, P3646H e P3862YH) were used in isolation under low availability (without application) and partial, of N, P and K, in an isolated manner, also evaluated under the recommended dose, aiming at fresh consumption. The most efficient and responsive hybrid must first be identified in isolation, based on the availability it is subjected to and later, by its sale, focused on fresh consumption. The hybrids indicated for low availability (low technological level) were BRS1055 and 30F53YH, with respect to responsiveness or agronomic efficiency, the hybrid P3862YH was the one that presented the best performance and indicated for technological levels of medium to high, considering the classification obtained for the nitrogen, phosphorus, and potassium for production vegetable corn.

scholarly journals Effect of Seeding Rate On Growth And Yield Of Okra (Abelmoschus Esculantus) In Zuru Northern Guinea Savanna Of Nigeria

2018 ◽  
Vol 6 (02) ◽  
Author(s):  
Yohanna J, A. ◽  
Muhammad A, M.
Keyword(s):  
Block Design ◽  
Total Yield ◽  
Growth And Yield ◽  
Land Resource ◽  
Seeding Rate ◽  
Randomized Complete Block Design ◽  
Number Of Leaves ◽  
Resource Space ◽  
Plant Stand ◽  
The Mean

Field experiment was carried out during 2010 rainy season to find the effect of seeding rate on the growth and yield of okra (Abelmuschus esculentus) in Zuru Northern Guinea Savannah. Zuru is located in Zuru Local government area of Kebbi State (Latitude 11o 251 to 11o 551 North and Longitude 4o 51 to 5o 251 East of the equator). The experiment consisted of three treatments that is planting okra at one plant per stand (S1), two plants per stand (S2) and three plants per stand (S3). The experiment was laid out in randomized complete block design (RCBD) and the treatments replicated three time. The result of the experiment has shown that plant height and number of leaves/plant at 3, 6 and 9 weeks after planting (    WAP) were significantly influenced by seeding rate (P<0.05). At 3, 6 and 9 WAP tallest plants were obtained from okra plants planted at three plants/stand (27.83, 54.0 and 77.0cm) respectively followed by okra planted at two plant/stand (24.77, 50.67 and 74.33 leave/plant respectively ). However, more number of leaves/plant were obtained from okra plant at one plant/stand (9.67, 24.67 and 48.0 leaves/plant respectively) followed by okra planted at two plants/stand (8.33, 18.33 and 36.33 leaves/plant respectively). Seeding rate had significant influence on time of 50 percent flowering with one plant/stand first attaining 50 percent flowering stage just within 36.33 days followed by okra planted at two plants/stand (38 days). The mean fresh fruit yield of okra was also significantly influenced by seeding rate with the highest yield of fresh fruits obtained from three plants/stand (83.34/ha) followed by okra planted at two plants/stand (55.56/ha). However, the result of the findings recommends that, okra should be planted at two plants/stand for medium sized and marketable okra fresh fruits since at three plants/stand leads to the production of undersized fresh fruits which do not often attract customers. At one plant/stand, there seemed to be early fruiting and bigger sized fresh fruits but low total yield due to underutilization of land resource/space. Planting at one plant/stand should therefore be avoided

scholarly journals Growth Performance of Lettuce Using Fermented Products as Organic Fertilizers

2019 ◽  
Vol 1 (3) ◽  
pp. 65
Author(s):  
Kareen Lynn E. Negado
Keyword(s):  
Growth Performance ◽  
Block Design ◽  
Organic Fertilizers ◽  
Control Groups ◽  
Lettuce Seeds ◽  
Randomized Complete Block Design ◽  
Number Of Leaves ◽  
The Mean ◽  
And Control ◽  
Fermented Products

This study evaluates the growth performance of lettuce (Lactuca sativa L.) utilizing various fermented products as organic fertilizers. Growth performance is determined through the plant’s weight and leaves and significant differences in growth among various treatments: (a) fish trash, (b) scrap seaweeds, (c) kangkong, and control groups urea (positive) and water (negative) was also determined. Kangkong leaves are fermented for 10 days, fish trash for 14 days and 1 month for seaweeds. Lettuce seeds are sown before transplanting (15 days after germination) into pots and placed in raised beds. Randomized complete block design is utilized in the experiment. Growth performance is measured through the number of leaves 10, 20, and 30 days after transplant and mass of plant upon harvest. After 30 days, the lettuce was harvested. Based on the findings, the soil and fermented products are acidic and the needed organic matter for optimum growth of lettuce are not sufficient as well as some nutrients of the fermented products. Among the organic fertilizers, kangkong at 30 ml performs best in terms of the growth performance of lettuce. Urea performs best in terms of the mass upon harvest. Significant differences exist in the mean number of leaves of lettuce treated with various amounts of organic fertilizers with the plants that receive urea. Lettuce produce more number of leaves and with the highest mass upon harvest when treated with urea compared with organic fertilizers applied after 30 days from transplant. Keywords: fermented kangkong; fish trash; growth performance; lettuce; scrap seaweeds

Genetic Variability for Pod Yield and Component Traits in Sugar Snaps (Pisum sativum var. saccharatum)

2020 ◽  
Author(s):  
Ajay Chauhan ◽  
Akhilesh Sharma ◽  
Parveen Sharma ◽  
Viveka Katoch ◽  
Sanjay Chadha ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Block Design ◽  
Internodal Length ◽  
Breeding Lines ◽  
Pod Yield ◽  
Horticultural Traits ◽  
Component Traits ◽  
Additive Gene ◽  
High Heritability ◽  
Positive Direct

Background: Edible podded pea is an oriental vegetable crop which shares the cultivation pattern with the garden pea. Fresh tender pods lacking parchment layer are consumed whole like beans. It is a newly introduced crop in India and therefore, it would be imperative to identify the most promising genotypes vis-à-vis traits of interest, those contributing towards maximization of yield. The present investigation was, therefore, planned to assess the genetic parameters of variability for pod yield and related horticultural traits in order to identify the most promising edible pod pea genotypesMethods: Thirty six genotypes comprising of 29 F7 advanced breeding lines and nine lines from different institutes including three checks namely, ‘Arka Apoorva’, ‘Arka Sampoorna’ and ‘Mithi Phali’ were evaluated in randomized complete block design over three replications during winters 2016-2017 at C.S.K. Himachal Pradesh Krishi Vishvavidyalaya, Palampur for pod yield and related horticultural traits.Result: Sufficient genetic variability was observed for all morphological and yield contributing attributes. The magnitude of phenotypic (PCV) and genotypic (GCV) coefficients of variation were high for pod yield while branches per plant, internodal length, harvest duration and pods per plant showed high PCV and moderate GCV. High heritability along with high genetic advance was observed for internodal length, plant height, average pod weight and pod yield per plant indicating the importance of additive gene action. Pod yield per plant revealed positive correlation at both phenotypic and genotypic levels with pods per plant, average pod weight, pod length and pod breadth. Pods per plant and average pod weight at both phenotypic and genotypic levels had maximum positive direct and indirect effects to the total association of component traits suggesting the importance of these traits towards pod yield. 

scholarly journals Estimates of Heritability and Genetic Advance for Yield Components of Cowpea (Vigna unguiculata L. Walp) under Drought Stress Conditions

2021 ◽  
Vol 3 (3) ◽  
pp. 10-17
Author(s):  
A. Sheidu ◽  
T. M. Igyuve ◽  
A. E. Ochigbo
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Flowering Plant ◽  
Genetic Advance ◽  
Narrow Sense ◽  
Narrow Sense Heritability ◽  
Randomized Complete Block Design ◽  
The Mean ◽  
Parental Mating ◽  
Pod Number

The study was conducted at the Teaching and Research Farms, Federal University of Agriculture, Makurdi, Nigeria. Five Cowpea genotypes (FUAMPEA-1, IT99K-573-1-1, SAMPEA-16, SAMPEA-8, BIU LOCAL) were crossed and advanced to F1, F2, BC1 and BC2 populations using bi-parental mating design. The six generations were evaluated in a Randomized Complete Block Design with three replications. Significant test of the mean performances among the entries showed significant differences among the generations for the characters studied. Wide ranges of narrow sense heritability (18 to 79%), broad sense heritability (21 to 92%) and genetic advance (5.7 to 24.1%) were obtained for characters studied. Broad and narrow sense heritability as well as genetic advance was moderate to high for most of the characters studied such as days to 50% flowering, plant height, days to pod maturity, number of seeds per pod, number of pods per plant, hundred seed weight, root length and grain yield for the three sets of cowpea crosses. The results also revealed the possibility of exploitation for grain yield and drought tolerance in the crosses studied.

scholarly journals Evaluation of Chickpea (Cicer arietinum L.) Genotypes for Yield and Drought Tolerance under Rain Fed and Irrigated Conditions

2020 ◽  
pp. 33-42
Author(s):  
R. Divya Madhuri ◽  
V. Jayalakshmi ◽  
M. Shanthi Priya
Keyword(s):  
Andhra Pradesh ◽  
Yield Loss ◽  
Agricultural Research ◽  
Block Design ◽  
High Yield ◽  
Research Station ◽  
Drought Tolerant ◽  
Major Constraint ◽  
Randomized Complete Block Design ◽  
The Mean

In Southern India, drought stress is a major constraint to chickpea production and yield stability. Drought tolerant index (DTI) that provides a measure of drought based on yield loss under drought condition in comparison to normal condition was used for screening drought-tolerant genotypes. This study was conducted to determine drought tolerant genotypes with high yield in stress and non-stress conditions utilising physiological traits. Thirty chickpea genotypes were tested in a randomized complete block design with three replications under rain fed and irrigated conditions at Regional Agricultural Research Station, Nandyal, Andhra Pradesh, India during rabi, 2018-2019. The analysis of variance carried out for yield and drought tolerant traits revealed highly significant differences among the genotypes for all characters under rain fed as well as irrigated conditions. NBeG 776, NBeG 779, NBeG 868, ICCV 181606, MH 13 and MH 14 are drought tolerant. NBeG 776, NBeG 779 and NBeG 868 are suitable under both rain fed and irrigated conditions with significantly higher yields over their respective means. ICCV 181606, MH 13 and MH 14 are suitable exclusively for rain fed condition with significantly superior yields over the mean.

scholarly journals Genetic variability and yield components of yard long bean (Vigna unguiculata var. sesquipedalis L.)

2021 ◽  
Vol 82 (3) ◽  
pp. 107-122
Author(s):  
Zakia Sultana ◽  
Nahid Ahmed ◽  
Mohammad Saiful Islam ◽  
Abdur Rahim
Keyword(s):  
Genetic Variability ◽  
Vigna Unguiculata ◽  
Block Design ◽  
Pod Yield ◽  
Randomized Complete Block Design ◽  
Days To Maturity ◽  
Cluster Distance ◽  
High Heritability ◽  
Positive Effect ◽  
Pod Number

Yard long bean (Vigna unguiculata var. sesquipedalis L.) is one of the important leguminous vegetables in Bangladesh. However, yield of this vegetable is much lower in Bangladesh compared to other yard long beangrowing countries. Therefore, it is crucial to improve the yield of this vegetable. In the present study, genetic variability, heritability, character association and genetic diversity were evaluated on randomized complete block design with three replications among seven-yard-long bean genotypes. The genotypes were significantly variable for the studied characters. High genotypic and phenotypic coefficient of variation was observed in number of pods per plant and pod yield per plant. Accordingly, high heritability together with high genetic advance in percent of mean was observed in number of pod per plant, pod diameter and hundred seed weight. The correlation studies revealed that pod yield per plant showed significant positive correlation with number of seed per pod, number of pods per plant while significantly negative correlation with days to marketable harvest at both genotypic and phenotypic level. Path analysis revealed days to first flowering, days to maturity, number of pods per plant, pod weight and number of seeds per pod had direct positive effect on pod yield per plant. The studied genotypes were clustered into 3 groups with highest of inter-cluster distance between cluster I and III while lowest between cluster II and III. The genotypes of cluster I exhibited higher mean performance while lower in cluster III for important traits including pod yield per plant.

scholarly journals Investigation of rice quality milling in abrasive and blade whiteners in terms of breakage percentage and degree of milling

2018 ◽  
Vol 7 (10) ◽  
pp. 198-211
Author(s):  
Mohsen Heidarisoltanabadi ◽  
Hamidreza Salemi ◽  
Behshad Tahani ◽  
Sasan Fathi
Keyword(s):  
Power Consumption ◽  
Block Design ◽  
Rice Cultivars ◽  
Working Capacity ◽  
Moisture Contents ◽  
Randomized Complete Block Design ◽  
Breakage Rate ◽  
Degree Of Milling ◽  
Blade System ◽  
The Mean

Reduction of rice losses is very important. In this study, appropriate moisture contents for milling of three common rice cultivars were determined in abrasive and blade whiteners. To this end, a factorial test based on a randomized complete block design with three replications was carried out in two milling systems: abrasive and blade whiteners, on three paddy cultivars: Sorkheh, Sazandegi, and Tarom and at four moisture contents: 8, 10, 12 and 14% (on wet basis). The paddy cultivars were dried and converted into white rice in abrasive and blade systems. In each treatment, the rice-breakage percentage, the DOM, the working capacity and the power consumption of each system were measured. The results showed that cultivar Sorkheh had the lowest rice-breakage rate. In addition, the mean breakage rate and DOM were significantly lower in the abrasive whitener than in the blade whitener. Based on results, most appropriate milling moisture contents for the cultivars Sorkheh, Sazandegi, and Tarom were 10, 12, and 10%, respectively, in the abrasive system, and 10, 12, and 12%, respectively, in the blade system. The working capacity and power consumption in the abrasive system were 1.7 and 3.43 times as much as those in the blade system, respectively.

scholarly journals Study of Combining Ability and Nature of Gene Action for Yield and Yield Related Traits in Maize (Zea mays L.)

2019 ◽  
pp. 1-8
Author(s):  
Birender Singh ◽  
Abhinav Abhishek ◽  
R. B. P. Nirala ◽  
S. S. Mandal ◽  
Tushar Ranjan
Keyword(s):  
Grain Yield ◽  
Zea Mays L ◽  
Gene Action ◽  
Block Design ◽  
Diallel Mating Design ◽  
Randomized Complete Block Design ◽  
Additive Gene ◽  
Ear Height ◽  
The Mean ◽  
Half Diallel

The present investigation was carried out using thirty eight genotypes (eight parents, twenty eight F1's and two checks) using Griffing's half diallel mating design. The experiment was laid out in a randomized complete block design with three replications during kharif 2017 at the research farm of Bihar Agriculture College, Sabour. Observations were recorded for six pre-harvest characters viz days to 50% anthesis, days to 50% silking, anthesis silking interval, days to 75% brown husk, plant height, ear height and seven post-harvest characters viz cob length, cob diameter, number of kernel rows per cob, number of kernels per row, 1000 seed weight, shelling percentage and grain yield at 15% moisture. The mean sum of square of treatments was found to be significant for days to 75% brown husk and shelling per cent and highly significant for all other characters. The mean sum of square for GCA was found to be significant for cob length, no. of kernel row per cob, no. of kernels per row and highly significant for remaining all the characters except days to 75% brown husk and shelling%. The mean sum of square for SCA was significant for days to 75% brown husk and highly significant for all the remaining characters. On the basis of GCA effect for grain yield at 15% moisture, the parents BML-7, VQL-1 and SML-1 were found to be good general combiners. The ratio of GCA variance to SCA variance was found to be less than 1 for all the traits which indicated the preponderance of non-additive gene action. On the basis of SCA effects better performing crosses for grain yield at 15% moisture were DTPYC-9 × LM-13, CLQRCY-44 × VQL-1, CML-161 × SML-1 and CML-161× BML-7.

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