Comparative Study of AMMI- and BLUP-Based Simultaneous Selection for Grain Yield and Stability of Finger Millet [Eleusine coracana (L.) Gaertn.] Genotypes

Finger millet, an orphan crop, possesses immense potential in mitigating climate change and could offer threefold security in terms of food, fodder, and nutrition. It is mostly cultivated as a subsistence crop in the marginal areas of plains and hills. Considering the changes in climate inclusive of recurrent weather vagaries witnessed every year, it is crucial to select stable, high-yielding, area-specific, finger millet cultivars. Sixty finger millet varieties released across the country were evaluated over six consecutive rainy seasons from 2011 to 2016 at the Agricultural Research Station, Vizianagaram. The genotype × environment interaction (GEI) was found to be significant in the combined ANOVA. Furthermore, the Additive Main effects and Multiplicative Interaction (AMMI) analysis asserted that genotypes and the GEI effects accounted for approximately 89% of the total variation. Strong positive associations were observed in an estimated set of eleven stability parameters which were chosen to identify stable genotypes. Furthermore, Non-parametric and Parametric Simultaneous Selection indices (NP-SSI and P-SSI) were calculated utilizing AMMI-based stability parameter (ASTAB), modified AMMI stability value (MASV), and Modified AMMI Stability Index (MASI) to identify stable high yielders. Both methods had inherent difficulties in ranking genotypes for SSI. To overcome this, the initial culling [i.e., SSI with culling strategy (C-SSI)] of genotypes was introduced for stability. In the C-SSI method, the top ten genotypes were above-average yielders, while those with below-average yield were observed in NP-SSI and P-SSI methods. Similarly, the estimation of best linear unbiased prediction (BLUP)-based simultaneous selections, such as harmonic mean of genotypic values (HMGV), relative performance of genotypic values (RPGV), and harmonic mean of relative performance of genotypic values (HMRPGV), revealed that none of the top ten entries had below-average yield. The study has proven that C-SSI and BLUP-based methods were equally worthy in the selection of high-yielding genotypes with stable performance. However, the C-SSI approach could be the best method to ensure that genotypes with a considerable amount of stability are selected. The multi-year trial SSI revealed that entries Indaf-9, Sri Chaitanya, PR-202, and A-404; and VL324 and VL146 were ascertained to be the most stable high-yielding genotypes among medium-to-late and early maturity groups, respectively.

Download Full-text

Performance analysis of spring wheat genotypes under rain-fed conditions in warm humid environment of Nepal

International Journal of Environment ◽

10.3126/ije.v4i2.12649 ◽

2015 ◽

Vol 4 (2) ◽

pp. 289-295

Author(s):

Ramesh Raj Puri ◽

Nutan Raj Gautam

Keyword(s):

Research Council ◽

Agricultural Research ◽

Research Station ◽

Environment Interaction ◽

Participatory Varietal Selection ◽

Early Maturity ◽

Lattice Design ◽

Agricultural Research Council ◽

Water Stress Tolerance ◽

Small Plot

Around 25% of total wheat area in Terai of Nepal falls under rain-fed and partially irrigated condition. A Coordinated varietal trial (CVT) was conducted during two consecutive crop cycles (2011-12 and 2012-13) under timely sown rain-fed conditions of Terai. The trial was conducted in Alpha Lattice design with two replications at Nepal Agricultural Research Council, National Wheat Research Program, Bhairahawa and Nepal Agricultural Research Council, Regional Agriculture Research Station, Nepalgunj. Observations were recorded for yield and yield traits and analyzed using statistical software Cropstat 7.2.The combined analysis of coordinated varietal trial showed that BL 3978 possessed the highest yield (2469.2 Kg ha-1) followed by NL 1097 (2373.2 Kg ha-1) and NL 1094 (2334.06 Kg ha-1). Genotype x Environment interaction for grain yield was significant (p<0.05) over locations and years. BL 3978 with early maturity (111 days) escaped the heat stress environment. Among the top three genotypes, BL 3978 was consistently higher in both favorable and unfavorable conditions. Earliness was one of the major traits for heat tolerant genotypes. The three identified genotypes will be further evaluated in participatory varietal selection or coordinated farmers field trial followed by small plot seed multiplication (seed increase) and release in the future for timely sown rain-fed conditions. These lines also appear suitable for inclusion in crossing program targeted for water stress tolerance variety development. DOI: http://dx.doi.org/10.3126/ije.v4i2.12649 International Journal of Environment Vol.4(2) 2015: 289-295

Download Full-text

Stability for disease, genotype x environment interaction for yield andits components in pigeonpea [Cajanus cajan (L.) Millsp.]

Legume Research - An International Journal ◽

10.18805/lr.v0iof.10761 ◽

2016 ◽

Author(s):

S Muniswamy ◽

R. Lokesha ◽

Yamanura ◽

Ramesh ◽

J. R. Diwan

Keyword(s):

Fusarium Wilt ◽

Seed Yield ◽

Agricultural Research ◽

Mosaic Disease ◽

Genotype X Environment Interaction ◽

Research Station ◽

Environment Interaction ◽

Stability Parameters ◽

Genotype X Environment ◽

Lattice Design

The material for study of genotype x environment (G x E) interaction comprised of 23 genotypes, which were tested in four environments, during kharif-2012 and 2013 at two locations in Agricultural Research Station, Kalaburagi and Raddevadgi located in north eastern dry zone (Zone 2) of Karnataka. The experiment was laid out in lattice design with two replications. Highly significant differences among genotypes were observed for all the characters except number of pods per plant and yield per plant. Environmental +(Genotype x Environment) interaction was significant for days to 50 per cent flowering, day to maturity, plant height, pod bearing length, number of pods per plant and seed yield per plant. The variance due to pooled deviation was highly significant for all the characters which reflect the presence of sufficient genetic variability in the material. Stability parameters for seed yield per plant indicated that ASHA(ch) was stable and desirable, followed by RVK-275 and GRG-811 which were specifically adopted for favourable and poor environments respectively. Two years of field screening for Fusarium wilt (FW) and Sterility Mosaic Disease (SMD) yielded three genotypes viz., GRG-811, GRG-2009 and ASHA for resistance to Fusarium wilt and moderate resistance to SMD. Hence, these genotypes can be used directly as a variety or choice of parent for hybridization programme.

Download Full-text

Manurial value of byproducts of bio-diesel feed stocks on finger millet grain and dry fodder productivity

Journal of Applied and Natural Science ◽

10.31018/jans.v1i2.64 ◽

2009 ◽

Vol 1 (2) ◽

pp. 241-244 ◽

Cited By ~ 1

Author(s):

S. Ramesh ◽

Balakrishna Gowda ◽

H.B. Raghu ◽

B. C. Shivakumar

Keyword(s):

Finger Millet ◽

Agricultural Research ◽

Plant Nutrients ◽

Research Station ◽

Farm Yard Manure ◽

Nutrient Sources ◽

Oil Cakes ◽

Neem Seed Oil ◽

By Products ◽

Oil Seed Cakes

A replicated field experiment was conducted at Agricultural Research Station (ARS), Madenur located in Hassan District, Karnataka in rainy season during 2007 to assess the manurial value of by-products of bio-diesel feed stocks-pongamia and neem oil seed cakes vis-à-vis conventional plant nutrients sources (combination of farm yard manure and inorganic fertilizers) on the grain and fodder productivity of finger millet, the staple food cereal of southern Karnataka. Grain and dry fodder productivity of finger millet crop grown using pongamia and neem seedoil cakes is comparable to that grown using conventional plant nutrient sources. Application of plant nutrients only through pongamia and neem seed oil cakes resulted in higher available soil Nitrogen, Potassium and Organic Carbon contents.

Download Full-text

Fertilizer responsiveness of short duration improved finger millet genotypes to different levels of NPK fertilizers

Indian Journal of Agricultural Research ◽

10.18805/ijare.a-4801 ◽

2018 ◽

Author(s):

U. Triveni ◽

Y. Sandhya Rani ◽

T.S. S.K. Patro ◽

N. Anuradha ◽

M. Divya

Keyword(s):

Grain Yield ◽

Finger Millet ◽

Agricultural Research ◽

Growth And Yield ◽

Research Station ◽

Npk Fertilizers ◽

Yield Increase ◽

Check Variety ◽

Different Levels ◽

Plot Design

A field experiment was carried out at Agricultural Research Station, Vizianagaram, during Kharif, 2016 under rainfed conditions to know the fertilizer responsiveness of promising finger millet varieties to graded doses of NPK fertilizers. Twenty treatment combinations were tested in split- plot design with three replications. Experimental results revealed that with 125% RDF grain yield increase was 10%, 27% and 48% higher than 100% RDF, 75% RDF and 50% RDF respectively. Among the finger millet genotypes, grain yield of VL-379(2037 kg/ha) and VL-352(1989 kg/ha) was significantly high and was at par with national check variety VR-708(1959 kg/ha). Both the test varieties (VL-379 and VL-352) were far superior to local check variety in terms of growth and yield characteristics. Higher net monetary returns and B:C ratio were obtained with VL-379, followed by VR-708 and VL-352 at 125% RDF.

Download Full-text

GENOTYPE BY ENVIRONMENT AND STABILITY ANALYSES OF DRYLAND MAIZE HYBRIDS

10.21107/amzeri.2020.2 ◽

2020 ◽

Author(s):

Achmad Amzeri ◽

◽

B.S. DARYONO ◽

M. SYAFII ◽

◽

...

Keyword(s):

Grain Yield ◽

Block Design ◽

Yield Potential ◽

High Yield ◽

Environment Interaction ◽

Phenotypic Analysis ◽

Stability Parameters ◽

Early Maturity ◽

Maize Hybrids ◽

The Stability

The phenotypic analysis of new candidate varieties at multiple locations could provide information on the stability of their genotypes. We evaluated the stability of 11 maize hybrid candidates in five districts in East Java Province, Indonesia. Maize hybrids with high yield potential and early maturity traits derived from a diallel cross were planted in a randomized complete block design with two checks (Srikandi Kuning and BISI-2) as a single factor with four replicates. The observed traits were grain yield per hectare and harvest age. The effects of environment, genotype, and genotype × environment interaction on yield were highly significant (P < 0.01). KTM-1, KTM-2, KTM-4, KTM-5, and KTM-6 showed higher average grain yield per hectare than the checks (Srikandi Kuning = 8.49 ton ha−1 and BISI-2 = 7.32 ton ha−1) at five different locations. The average harvest age of 11 candidates was less than 100 days. KTM-4 and KTM-5 had production yields that were higher than the average yield of all genotypes in all environments (Yi > 7.78 tons ha−1) and were considered stable on the basis of three stability parameters, i.e., Finlay–Wilkinson, Eberhart–Russell, and additive main effect multiplicative interaction (AMMI). KTM-2 had the highest yield among all tested genotypes (9.33 ton ha−1) and was considered as stable on the basis of AMMI but not on the basis of Finlay–Wilkinson and Eberhart–Russell. KTM-1 performed well only in Pamekasan, whereas KTM-6 performed well only in Sampang. Thus, these two genotypes could be targeted for these specific locations.

Download Full-text

Genetic Divergence in Groundnut (Arachis hypogaea L)

Bangladesh Journal of Plant Breeding and Genetics ◽

10.3329/bjpbg.v23i1.9317 ◽

1970 ◽

Vol 23 (1) ◽

pp. 45-49

Author(s):

MA Zaman ◽

M Tuhina-Khatun ◽

M Moniruzzaman ◽

MN Yousuf

Keyword(s):

Arachis Hypogaea ◽

Genetic Divergence ◽

Agricultural Research ◽

Block Design ◽

Research Station ◽

Early Maturity ◽

Randomized Block Design ◽

Arachis Hypogaea L ◽

Cluster Distance ◽

Moderate Yield

Comprising 34 groundnut genotypes an experiment was conducted in a randomized block design with three replication at the Research farm of Regional Agricultural Research Station, BARI, Hathazari, Chittagong during Rabi season (December 2009 to April 2010) for estimation of the multivariate analysis of divergence. The genotypes were grouped into five clusters. Cluster III contained the highest number of genotypes (12) and the cluster II contained the lowest (2). The inter-cluster distances in all cases were larger than the intra-cluster distance which indicated that wider diversity is present among the genotypes of distant grouped. The highest intra cluster distance was observed in cluster V and the lowest in II. The highest inter cluster distance was observed between the cluster IV and III followed by V and III and the lowest between cluster V and I. Days to 50% flowering, days to maturity, number of branches per plant, number of matured nuts per plant and karnel size were the most important contributors based on the latent vector. But the highest cluster means for matured nuts per plant, 100 karnel weight, 100 nuts weight and yield per plant were obtained from the cluster II. With moderate yield but early maturity varieties were found in cluster IV. Therefore, more emphasis should be given on cluster VI for selecting genotypes as parents for crossing with the genotypes of cluster II and III for getting new recombinants with early maturity and higher yield. Key Words: Genetic divergence; cluster analysis; D2 analysis; groundnut (Arachis hypogaea L) DOI: http://dx.doi.org/10.3329/bjpbg.v23i1.9317 BJPBG 2010; 23(1): 45-49

Download Full-text

Genotype by environment interaction analysis of wheat (Triticum aestivum L.) grain yield under rain-fed conditions in Zambia

SABRAO Journal of Breeding and Genetics ◽

10.54910/sabrao2021.53.4.5 ◽

2021 ◽

Vol 53 (4) ◽

pp. 609-619

Author(s):

B. Tembo

Keyword(s):

Grain Yield ◽

Agricultural Research ◽

Interaction Analysis ◽

Crop Improvement ◽

Genotype By Environment Interaction ◽

Research Station ◽

Environment Interaction ◽

Wheat Genotypes ◽

Lattice Design ◽

Genotype By Environment

Understanding genotype by environment interaction (GEI) is important for crop improvement because it aids in the recommendation of cultivars and the identification of appropriate production environments. The objective of this study was to determine the magnitude of GEI for the grain yield of wheat grown under rain-fed conditions in Zambia by using the additive main effects and multiplicative interaction (AMMI) model. The study was conducted in 2015/16 at Mutanda Research Station, Mt. Makulu Research Station and Golden Valley Agricultural Research Trust (GART) in Chibombo. During2016/17, the experiment was performed at Mpongwe, Mt. Makulu Research Station and GART Chibombo, Zambia. Fifty-five rain-fed wheat genotypes were evaluated for grain yield in a 5 × 11 alpha lattice design with two replications. Results revealed the presence of significant variation in yield across genotypes, environments, and GEI indicating the differential performance of genotypes across environments. The variance due to the effect of environments was higher than the variances due to genotypes and GEI. The variances ascribed to environments, genotypes, and GEI accounted for 45.79%, 12.96%, and 22.56% of the total variation, respectively. These results indicated that in rain-fed wheat genotypes under study, grain yield was more controlled by the environment than by genetics. AMMI biplot analysis demonstrated that E2 was the main contributor to the GEI given that it was located farthest from the origin. Furthermore, E2 was unstable yet recorded the highest yield. Genotype G47 contributed highly to the GEI sum of squares considering that it was also located far from the origin. Genotypes G12 and G18 were relatively stable because they were situated close to the origin. Their position indicated that they had minimal interaction with the environment. Genotype 47 was the highest-yielding genotype but was unstable, whereas G34 was the lowest-yielding genotype and was unstable.

Download Full-text

Stability parameters of commercial maize (Zea mays L.) hybrids

Genetika ◽

10.2298/gensr0603235b ◽

2006 ◽

Vol 38 (3) ◽

pp. 235-242 ◽

Cited By ~ 1

Author(s):

Vojka Babic ◽

Milosav Babic ◽

Nenad Delic

Keyword(s):

Block Design ◽

Average Yield ◽

Stability Parameters ◽

Early Maturity ◽

Maize Hybrids ◽

Randomized Complete Block Design ◽

Late Maturity ◽

Growing Conditions ◽

Set Up ◽

Coefficient Of Regression

Many authors showed the possibility of developing highly yielding and stable hybrids. The assumption was that commercial maize hybrids were characterized not only by the level of average yield bat also by their stability. Fifteen commercial maize hybrids of medium late and late FAO maturity groups (400-700) were used in the present study. The two-year four-replicate trials were set up in six locations according to the randomized complete-block design. Stability parameters were determined after the method of EBERHART and RUSSEL (1966), in which the genotype was considered stable if it had a high average yield, a coefficient of regression of approximately 1.0 and deviation from regression as small as possible. The obtained results show that early maturity hybrids responded better to more modest growing condition and had a greater deviation from regression, while late maturity hybrids had a coefficient of regression closer to unity and they generally better responded to improved growing conditions.

Download Full-text

Pre-scaling up of improved finger millet (Kako-1) variety, at Weyira district, under Halaba zone in Ethiopian

International Journal of Agricultural Science and Food Technology ◽

10.17352/2455-815x.000123 ◽

2021 ◽

pp. 297-301

Author(s):

Debara Mekonen ◽

Bekele Merkinel

Keyword(s):

Grain Yield ◽

Finger Millet ◽

Agricultural Research ◽

Smallholder Farmers ◽

Scaling Up ◽

Southern Ethiopia ◽

Early Maturity ◽

Ecological Zones ◽

Feedback Data ◽

Extension Personnel

Pre-scaling up of improved finger millet variety (kako-1) was conducted in 2019/20 mehere season in Halaba Zone, two selected kebeles under Weyira District,southern Ethiopia under rain fed conditions through involvement of farmers in participatory demonstration. The demonstration was carried out with the specific objectives:to popularize and demonstrate improved Finger millet technology (Kako-1) and to collect farmers feedback on improved finger millet variety. The demonstration was conducted at layignawu Badana and kufe kebele on farmers field of Weyira Districts on 10ha land coverage totally 20 beneficiary farmers field .Site and beneficiary farmers selection criteria were conducted purposively by cooperating with woreda and kebele extension personnel by willingness to accept technology, land availability and accessibility of the area. Training was given by focusing on agronomic practices and awareness creation for all selected beneficiary farmers and concerned extension personnel. Also, all necessary inputs (10kg/h kako-1 seed,100kg/h NPSB and 150 kg /h Urea) were provided from Hawassa agricultural research center.Yield and farmers feedback data were collected and analyzed by using descriptive statistics applying on SPSS software Accordingly, 2.7 tone/ha average mean grain yield was obtained. According to farmers’ feedback, the variety kako-1 has high tilling capacity, high grain yield, early maturity, high biomass yield and quality Therefore the variety need to extended to wide area.So, all concerned bodies need to work to facilitation of further extension of kako-1 variety for Halaba zone and other similar agro-ecological zones to improve finger millet production and productivity of smallholder farmers.

Download Full-text

Genetic Diversity In Exotic Maize (Zea mays L.) Hybrids

Bangladesh Journal of Agricultural Research ◽

10.3329/bjar.v38i2.15894 ◽

2013 ◽

Vol 38 (2) ◽

pp. 335-341 ◽

Cited By ~ 1

Author(s):

MA Zaman ◽

MA Islam

Keyword(s):

Plant Height ◽

Genetic Divergence ◽

Agricultural Research ◽

Research Station ◽

Early Maturity ◽

Mean Values ◽

Maize Hybrids ◽

Lattice Design ◽

Cluster Distance ◽

The Mean

An experiment in alpha lattice design with three replication including 39 exotic maize hybrids was conducted at the Research farm of Regional Agricultural Research Station, BARI, Ishuardi, Pabna during Rabi season 2010-11 for analysis the genetic divergence in exotic maize hybrids. The genotypes were grouped in to seven clusters. Cluster VI comprised the maximum genotypes (13) indicating overall genetic similarity among them. The minimum genotype (1) was contained in the cluster III and V. The highest inter-cluster distance was observed between cluster V and III followed by cluster I and III and cluster III and VII suggesting wide diversity between them and the genotypes in these cluster could be used in hybridization program for obtaining a wide spectrum of variation among the segregates. The highest intra-cluster distance was observed in cluster VII and the cluster III and V were contained only one genotype and hence, their intra cluster distance was zero. The mean values of cluster IV recorded the highest yield per hectare (11.60 ton/ha) with medium plant height, days to maturity, days to 50% tasseling, silking and shelling percentage. Selection on the basis of plant aspect and ear aspect the genotypes of cluster III ranked first but plant height was high with medium seed size, medium yield, medium shelling percentage and also in late in case of maturity. The mean values of cluster V shown overall medium in case of yield and all yield contributing characters. Qualitative characters contribute maximum towards genetic divergence. Therefore, the genotypes from cluster III, V and VI could be utilized as source materials for getting desirable new recombinants with early maturity and higher yield. Bangladesh J. Agril. Res. 38(2): 335-341, June 2013 DOI: http://dx.doi.org/10.3329/bjar.v38i2.15894

Download Full-text