scholarly journals Generation Mean Analysis for Seed Yield and Wilt Resistance in Castor (Ricinus communis L.)

2021 ◽  
Author(s):  
D.K. Patel ◽  
Ankit Patel ◽  
C.J. Patel ◽  
A.L. Jat
Keyword(s):  
Seed Yield ◽  
Ricinus Communis ◽  
Block Design ◽  
Research Station ◽  
Gujarat State ◽  
Gene Effects ◽  
Significant Difference ◽  
Incidence Estimation ◽  
Allelic Interaction ◽  
Wilt Incidence

Background: Castor is an important non-edible oil seeds crop of Gujarat state. Yield potentiality of this crop has been considerably improved through several breeding techniques. Now days, a wilt (Fusarium oxysporum f. sp. ricini) of castor has become a serious problem. The present study therefore, was under taken to use populations of P1, P2, F1, F2, BC1 and BC2 generations in each of six crosses of castor. The six crosses were selected in such a way that two crosses in each group of resistance × resistance, resistance × susceptible and susceptible × susceptible made available for detail study of gene effects for wilt resistance.Methods: The experiment was laid out in a compact family block design with three replications during kharif, 2017. The experimental materials consisted of four pistillate lines viz., VP-1, Geeta, SKP-84 and SKP-106 and six inbred lines viz., VI-9, JI-35, 48-1, SH-72, SKI-215 and PCS-124 selected from the germplasm maintained at the Castor and Mustard Research Station, S.D. Agricultural University, Sardarkrushinagar. Each entry was planted in a single row of 10 dibbles maintaining 120 cm row to row and 60 cm plant to plant distances.Result: The analysis of variance revealed significant difference among different generations for wilt incidence and seed yield indicating considerable variability in the material tested. The estimation of the gene effects revealed that additive as well as non-additive gene effects were observed for wilt incidence and seed yield in all the six cross. In the cross, VP - 1 × JI- 35 the wilt incidence estimation of scaling test and gene effect was observed non-significant indicating non-allelic interaction was absent for this character, while for seed yield, all the crosses have significant scaling test indicating the presence of non-allelic interactions for this trait.

Nitrogen Requirement of Potato for Eastern Indo-Gangatic Plain of India

2020 ◽  
Vol 7 (03) ◽  
Author(s):  
S. K. YADAV ◽  
R. K. SINGH ◽  
V. K. DUA ◽  
S SINGH ◽  
SARALA YADAV ◽  
...  
Keyword(s):  
Tuber Yield ◽  
Potato Crop ◽  
Block Design ◽  
Nitrogen Level ◽  
Cost Ratio ◽  
Research Station ◽  
Net Benefit ◽  
Marketable Tuber ◽  
Benefit Cost Ratio ◽  
Significant Difference

A field experiment was carried out during 2015-16 and 2016-17 at ICAR-Central Potato Research Station, Patna, Bihar, in randomized block design with four replications with objective to quantity the optimum requirement of nitrogen to potato crop. Significantly the highest plant height was recorded with nitrogen level of 300 kg/ha. Distributions of the smallest size of tuber yield of potato were decreasing with increasing the level of nitrogen. There was about 26.0% more yield of the smallest size tuber of potato was recorded with zero nitrogen as compare to the highest level of nitrogen i.e. 300 kg/ha. Increasing the nitrogen over the level of 150 to 225 kg per hectare, increasing the yield of tuber gradually slower rate than nitrogen level from 0 to 150 kg/ha. Total and marketable tuber yield of potato were increasing significantly with increasing level of nitrogen up to 150 kg/ha. There was no significant difference in marketable tuber yield was found for nitrogen level between 150 and 225 kg/ha. Highest (1.66) net benefit cost ratio was also recorded with level of nitrogen @ 150 kg/ha in potato. Hence, application of nitrogen @ 150 kg/ha was found statistically and economically more beneficial for potato cultivation in Eastern Indo-Gangatic plain of India.

scholarly journals EFFECT OF HARDWOOD BARK MULCH ON THE WINTER SURVIVAL OF EIGHT CULTIVARS OF GARDEN CHRYSANTHEMUMS

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1097c-1097
Author(s):  
William F. Hayslett ◽  
P. R. Thangudu ◽  
Sabrina Shaw
Keyword(s):  
Field Study ◽  
Block Design ◽  
Winter Survival ◽  
Research Station ◽  
Percent Survival ◽  
Flowering Season ◽  
Significant Difference ◽  
Randomized Complete Block Design ◽  
Cold Hardy

A field study was conducted at Tennessee State University's research station to evaluate the effect of hardwood bark mulch on the winter survival of garden mums. A randomized complete block design was used. Cultivars used were adorn, encore, grandchild, jackpot, legend, minnautumn, minnwhite and triump. At the end of the flowering season the tops were removed leaving a four inch stubble in the mulch. The number of mum plants that resumed growth the following spring were counted for each cultivar. There was a difference in the winter survival of the different cultivars as well as a significant difference in the mulch treated and the control. Grandchild and jackpot were most cold hardy followed by encore, minnwhite, minnautumn, triump, legend, and adorn. Grandchild and jackpot with four inches of hardwood bark mulch had an 88 percent survival while the control had a 44 percent survival. Adorn. had a 51 percent survival with four inches of mulch and a 20 percent survival in the control. This data shows that hardwood bark mulch holds a great potential for providing excellent winter protection for garden mums.

scholarly journals Gene Action Studies in the Inheritance of Yield and Quality Attributing Traits in Diallel Cross of Cotton (Gossypium hirsutum L.)

2021 ◽  
Vol 9 (3) ◽  
pp. 105-109
Author(s):  
V. J. Zapadiya ◽  
Keyword(s):  
Plant Height ◽  
Block Design ◽  
F1 Hybrids ◽  
Research Station ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Gene Effects ◽  
Partial Dominance ◽  
Seed Cotton Yield ◽  
Genetic Components

A field experiment was conducted to evaluate the 45 F1 hybrids derived from 10×10 half diallel fashion along with ten parents and one standard check GN.Cot.Hy-14 were sown in randomized block design with three replications during kharif -2017 at Cotton Research Station, Junagadh Agricultural University, Junagadh. The genetic components of variation were determined for 12 characters viz., days to 50% flowering, days to 50% boll opening, plant height (cm), number of monopodia per plant, number of sympodia per plant, number of bolls per plant, boll weight (g), seed cotton yield per plant (g), ginning percentage (%), seed index (g), lint index (g) and oil percentage (%).The estimate of the components of variation revealed significant results for both additive (D) as well as dominance effects (H1 and H2) for all the characters except plant height non-significant H2 component, but in majority of traits (except plant height, lint index) H1 was higher than D indicating dominance components were important in the inheritance of seed cotton yield and its components. The average degree of dominance (H1/D)1/2 was found to be more than unity for all the traits (except plant height, number of monopodia per plant and lint index indicating partial dominance) indicating over dominance. Asymmetrical distribution of positive and negative genes in the parents was observed for all the traits. High estimates of heritability in narrow sense was observed for days to 50% flowering, days to 50 % boll bursting, number of monopodia per plant, ginning percentage (%), lint index (g) and oil content (%) suggesting that selection based on these attribute would lead to rapid improvement. Due to preponderance of non-additive gene effects of seed cotton yield per plant and most of its component traits, heterosis breeding would also be practically feasible in cotton.

Evaluation of Mung Bean Germplasm [Vigna radiata (L.) Wilczek] for Yield in Transitional Plain of Inland Drainage Zone of Rajasthan, India

2021 ◽  
Author(s):  
Champa Lal Khatik ◽  
Kailash Chandra ◽  
Mujahid Khan ◽  
Ved praksh ◽  
Hanuman Singh Jatav ◽  
...  
Keyword(s):  
Seed Yield ◽  
Mung Bean ◽  
Agricultural Research ◽  
Block Design ◽  
Soil Health ◽  
Vital Role ◽  
Research Station ◽  
State Farm ◽  
Drainage Zone ◽  
Farm Profitability

Background: Pulses are leguminous crops which not only increase the soil fertility, its fitness and maintain soil health but also essential to meet the nutritional demand of burgeoning human population particularly in developing countries. Mungbean is a major pulse crop of Zone IIa (Transitional Plain of Inland Drainage Zone) of Rajasthan state. Farm profitability can also be enhanced by augmenting farm productivity. Selection of high yielding genotypes may play a vital role to achieve sustainable high agricultural yield at farmer’s field. Therefore, it is prerequisite to identify the suitable genotypes for this zone since the available varieties were not tested for its adaptability. The current study was aimed to evaluate twelve mung bean genotypes for seed yield with four checks in Zone IIa of Rajasthan.Methods: The mung bean crop was raised during Kharif 2018 and 2019 at Agricultural Research Station, Fatehpur- Shekhawati, Sikar (Rajasthan). Seed yield and its ancillary characters have been observed by following standard protocols. Present experiment was conducted in randomized block design with three replications. The material was sown in a four row plot of 4 m length with a spacing of 30 cm between rows and 10 cm between plants.Result: The performance of genotypes RMG 1098, RMG 1132, RMG 1134, RMG 1139 and RMG 1147 were superior to the zonal, state checks and other tested genotypes. The selected high yielding mung bean genotypes can increase farm output per se and farm profitability by sustaining soil health, fitness and productivity of this region.

Assessment of Stylosanthes seed yield reduction caused by phytoplasma-associated diseases

2002 ◽  
Vol 42 (8) ◽  
pp. 1053 ◽  
Author(s):  
S. J. De La Rue ◽  
R. Hopkinson ◽  
K. S. Gibb
Keyword(s):  
Seed Yield ◽  
Reproductive Activity ◽  
Yield Reduction ◽  
Research Station ◽  
Initial Symptom ◽  
Symptom Expression ◽  
Yield Data ◽  
Leaf Disease ◽  
Significant Difference ◽  
Stylosanthes Scabra

The effect of Stylosanthes little leaf disease on Stylosanthes scabra cv. Seca seed yield was monitored over 2 consecutive seasons at Southedge Research Station in northern Queensland. The time of initial symptom expression was recorded during weekly assessments to determine what effect time of infection after planting had on seed yield. First flowering date was recorded to establish whether the developmental stage of the plant, as indicated by the onset of reproductive activity, at the time of symptom expression influenced the effect of Stylosanthes little leaf disease on yield. At the end of each season, both diseased and asymptomatic plants were harvested and seed yield determined. Seed yield data from the 1999 season showed that there was no significant difference between the mean yield of symptomatic plants, regardless of when they first showed symptoms, and that of asymptomatic plants. However, during the 2000 season plants that showed symptoms early in the season had a significantly lower seed yield than both asymptomatic plants and plants that became diseased later in the season. This decrease in productivity amounted to a yield loss of 98.8 and 56.5% when the plants showed symptoms at 79�and 110 days, respectively, after planting. If plants became diseased within 30 days of first flowering, they did not produce significant amounts of seed. Yield remained low even when the time between first flowering and initial symptom expression increased up to 60 days, after which yield was extremely variable but within the range of that observed for individual asymptomatic plants. It is concluded that Stylosanthes little leaf disease has little or no effect on seed yield if plants have been flowering for about 8 weeks before symptom expression.

Combining Ability and Gene Action Analysis for Seed Yield and Component Traits in F2 Generation of Vigna mungo L. Hepper by using Griffing Approach

2020 ◽  
Author(s):  
Amandeep Singh ◽  
R. K. Mittal ◽  
V. K. Sood ◽  
Kulveer Singh Dhillon ◽  
Shailja Sharma
Keyword(s):  
Seed Yield ◽  
Combining Ability ◽  
Gene Action ◽  
Block Design ◽  
Crop Improvement ◽  
Gene Effects ◽  
Early Maturity ◽  
Plant Seed ◽  
Combining Abilities ◽  
Half Diallel

Background: Urdbean (2n=2x=22), also known as blackgram is an important short duration legume crop belonging to family Fabaceae, widely cultivated in Asia. Urdbean occupies an important position among pulses owing to its high seed protein (25-26%), carbohydrates (60%), fat (15%), minerals, amino acids and vitamins. Owing to its low water requirement, it is also suitable for rainfed conditions. It adapts well to various cropping systems owing to its ability to fix atmospheric nitrogen in symbiosis with soil bacteria, rapid growth and early maturity. Half diallel analysis was adopted in present study to gather information on gca (general combining abilities) and sca (specific combining abilities) of 6 diverse parents and simultaneously estimating various types of gene effects involved in the expression of seed yield and related attributes in urdbean. Methods: The F1’s were developed during 2017 in 9 x 9 half diallel fashion by Sharma et al. 2019 and these F1’s were evaluated. Significant crosses on the basis of gene action and combining ability were selected for further advancement. The experimental material comprised of the six parents and 15 F2’s of a 6 x 6 half diallel cross among six cultivars of urdbean (four are purelines viz., Palampur-93, HPBU-111, DU-1 and KU-553 and rest of the two are advanced and indigenous lines viz., Him Mash-1 and IC-281994). The F2’s along with the parental genotypes were grown in a Randomized block Design (RBD) with three replications at Experimental Farm of the Department of Crop Improvement, COA, CSK HPKV Palampur (H.P.) during Kharif, 2018. Results: The cross combination, Him Mash-1× HPBU-111, was identified the best for high seed yield on the basis of sca. The specific crosses, Palampur-93 × IC-281994, Palampur-93 × KU-553 were good specific combiners for most of the traits viz., plant height, branches per plant, pods per plant, biological yield per plant, seed yield per plant, harvest index, 100-seed weight and crude protein content.

scholarly journals Effect of Different Levels of Paclobutrazol on the Yield of Asha and Farmers’ Variety of Peanut

2015 ◽  
Vol 21 (1) ◽  
Author(s):  
Mary Grace B. Gatan ◽  
Virgilio DM. Gonzales
Keyword(s):  
Seed Yield ◽  
Block Design ◽  
Stem Growth ◽  
Assimilate Partitioning ◽  
Growth Retardants ◽  
Wet Season ◽  
Significant Difference ◽  
Randomized Complete Block Design ◽  
Different Levels ◽  
Number Of Seeds

Peanut (Arachis hypogaea)  is commonly grown during the dry season and most farmers used the native variety. Growth retardants such as paclobutrazol (PBZ) was found to increase yield of some important crops. A study was conducted to determine the effect of different levels of paclobutrazol on the peanut yield of Asha and Farmers’ variety during the wet season. The experimental area was laid out using Randomized Complete Block Design (RCBD) factorial. Treatments were replicated thrice. Data were analyzed by Analysis of Variance (ANOVA) and  the Honest Significant Difference (HSD) test was used to compare treatment means. The increasing level of PBZ increased the number of pods of Asha by 29.97% while the most number of seeds was obtained from farmers’ variety. Applied PBZ Asha at 150mg/L recorded the highest shelling percentage that is 16.19% higher when compared to the untreated. Paclobutrazol application significantly increased seed yield of Asha and farmers’ variety by 43.34% and 20.86% at 150mg/L and 75mg/L, respectively. The increase in yield was due to the observed reduction in plant height and stem growth which possibly enhanced assimilate partitioning to pods. Asha applied with PBZ at 150mg/L obtained the highest seed yield of 4.2 tons/ha. Keywords— Agriculture, yield, peanut, paclobutrazol, experimental design, Pampanga, Philippines

scholarly journals Genetic Parameters of Agronomic Traits in Sweetpotato Accessions

2020 ◽  
Vol 12 (2) ◽  
pp. 240-246
Author(s):  
Wiwit Rahajeng ◽  
Joko Restuono ◽  
Febria Cahya Indriani ◽  
Purwono Purwono
Keyword(s):  
Sweet Potato ◽  
Genetic Parameters ◽  
Agronomic Traits ◽  
Block Design ◽  
Germplasm Collection ◽  
Research Station ◽  
Dry Matter Content ◽  
Root Yield ◽  
Wide Range ◽  
Significant Difference

Germplasm as a source of genes in sweetpotato breeding requires information on appearance and genetic parameters. The objectives of this research were to determine the performance and genetic parameters of sweet potato accessions. The research was conducted at Kendalpayak Research Station, Malang, East Java, Indonesia. The materials used were thirty sweet potato accessions from Indonesian Legumes and Tuber Crops Research Institute (ILETRI) germplasm collection. The research was arranged in a Randomized Block Design (RBD) with two replications. The variables observed included: the vines length, the weight of vines, the number and weight of the saleable root per plot, the number and weight of the non-saleable root per plot, the number and weight of root per plant, the root yield, the harvest index, and the dry matter content. The results of ANOVA showed a significant difference among the tested genotypes in almost all traits observed except on weight of non-saleable root. PCV estimation was higher than GCV estimation for all the observed characters. The weight of the saleable root per plot, the weight of root per plant, and the root yield that showed a wide range of PCV and GCV as well as high broad-sense heritability indicated that these traits had additive gene effect and more reliable for effective selection. The broad GCV in a population is effective for selection to obtain the superior variety.

scholarly journals Evaluation of Potato Genotypes for Plant and YieldCharactersin Field at Dailekh

2021 ◽  
Vol 19 (2) ◽  
pp. 16-24
Author(s):  
Binod Prasad Luitel ◽  
Bishnu Bahadur Bhandari ◽  
Bihani Thapa
Keyword(s):  
Tuber Yield ◽  
Block Design ◽  
Research Station ◽  
Spring Season ◽  
Marketable Yield ◽  
Significant Difference ◽  
Randomized Complete Block Design ◽  
The Mean ◽  
On Farm ◽  
Eye Depth

A field experiment was conducted at Horticulture Research Station (HRS), Dailekh, in Mid-Western hills of Nepal during 2019 and 2020, to evaluate the performance of ten potato genotypes for plant, and tuber yield characters. The potato genotypes were evaluated during spring season in a randomized complete block design with three replications. The genotypes showed highly significant difference for all the traits except tuber emergence. The mean squares for the year were also significant for all the traits except tuber emergence, stem numberplant -1 and total tuber yield. The interaction between genotypes and years did not show significant differences in all the traits except stem numberplant -1. Genotype CIP392797.22 produced more marketable yield (27.5 tha -1) and total tuber yield (30.2tha -1) than all other genotypes. The genotype CIP392797.22 is characterized as medium maturing, oval-shaped and dark red-skinned one with shallow eye depth in the tuber, and it imparted 13.2% higher marketable yield than Kufri Jyoti (24.3 tha -1). Thus, the genotype CIP392797.22 is recommended to evaluate on-farm for the verification and up-scaling among farmers at Mid-Western Nepal.

scholarly journals Evaluation of the performance of gum guar varieties in north eastern Karnataka, India

2016 ◽  
Vol 8 (2) ◽  
pp. 923-925
Author(s):  
B. Arunkumar ◽  
K. P. Viswanatha ◽  
Baba Fakruddin ◽  
D. Krishnamurthy
Keyword(s):  
Seed Yield ◽  
Agricultural Research ◽  
Research Station ◽  
Gujarat State ◽  
Agricultural Research Station ◽  
Legume Crop ◽  
North Eastern

The climatic situation in north eastern parts of Karnataka (except Bidar district) is almost similar to that of Rajastan. There is considerable area under rainfed situations and guar being a highly drought and temperature tolerant summer annual legume crop, there is hope for guar as an alternate and contingent crop during drought year in this region. With this objective effort were made to introduce, evaluate and to identify suitable gum guar varieties for North eastern parts of Karnataka. Ten gum guar varieties developed, released and cultivated in Rajasthan, Haryana and Gujarat state were evaluated in Agricultural Research Stations (ARS) located in Bidar, Gulbarga, Yadgiri, Bellary and Raichur districts of Karnataka during Kharif 2013-14. At Bidar, the top entry with respect to yield was HG-884 (679.00 Kg/ Ha), Variety RGC-1031 (793.00 Kg/Ha) performed well with respect to seed yield in Gulbarga district. Genotypes GAUG-13 (614.00 Kg/Ha) and RGC-986 (501.00 Kg/Ha) recorded higher seed yield respectively, in Bellary and Yadgiri district. At Raichur GAUG-13, recorded highest seed yield of 1432.00 Kg/Ha. Over the locations genotype GAUG-13 recorded highest seed yield of 759.00 Kg/Ha followed by HG-884 (700.40 Kg/Ha) and RGC-986 (696.60 Kg/Ha). The varieties tested exhibited considerable significance differences among themselves at four locations, except at one location (Agricultural Research Station, Bheemarayanagudi, Yadgir district). Variety GAUG-13, recorded highest seed yield over three locations indicating its wider adaptability.

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