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Genotypes for morphological traits

Xem 1-20 trên 82 kết quả Genotypes for morphological traits
  • Twenty six genotypes were characterized based on their morphological characters as per DUS guidelines of castor viz., stem color, bloom, seed shape, plant type, leaf shape, type of internode, spike type, inflorescence spike type, seed coat color, branching habits, spike shape and capsule type.

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  • The present investigation was carried out with eighteen clones including four water logging tolerant checks at the Sugarcane Breeding Experimental Block of Norman Borlaug Crop Research Centre, Gobind Ballabh Pant University of Agriculture and Technology, Pantnagar, India. Genetic variability was studied for thirteen different morphological and quality parameters viz., germination percent, number of tillers, number of millable canes, cane height, cane thickness, cane weight, cane yield, CCS yield, juice brix, sucrose %, purity %, CCS % and juice extraction percent.

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  • The present investigation was carried out with the objective of studying genetic variability among seed morphological traits in safflower genotypes. The field experiment was conducted at the research farms of ICAR-IIOR, Rajendranagar, Hyderabad. Analysis of seed traits was carried out at of Department of Seed Science and Technology, College of Agriculture, Rajendranagar, Hyderabad.

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  • Pomegranate is quite popular among consumer for its striking, sweet acidic taste and refreshing arils. Pomegranate is one of the ancient fruit crops which were originated in Iran. Total 151 pomegranate genotypes along with their hybrid parents (Bhagwa, DF, Nana) combinely 154 used for morphological characterization.

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  • Tomato is one of the most popular and widely grown vegetables in the world which ranks next to potato. Although tomato is generally grown under irrigated conditions, its cultivation as a rainfed crop has gained importance particularly in semi-arid regions. It has been established that stress due to water deficit is a very important limiting factor at the initial phase of plant growth and establishment. Studies on physiological evaluation of tomato genotypes is limiting in the drought stress condition.

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  • An attempt was made to evaluate eighteen physio-morphological traits and grain yield in eighteen genotypes of upland rice under irrigated and flowering stage drought condition. High estimates of phenotypic (PCV) and genotypic (GCV) coefficient of variation were observed for sterile grains per panicle, grain yield apparent contribution rate, water potential, straw yield and total biomass at maturity in drought stress condition.

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  • A total of 75 sorghum germplasm lines including 74 Indigenous cultivar (IC) and one Exotic cultivar (EC) were characterized using 27 morphological descriptors provided by PPV & FRA for DUS testing in sorghum. Results revealed that maximum variation was present among genotypes for glume traits viz., colour (6 groups), neck of panicle (5 groups), length for flower with pedicel (5 groups), time of panicle emergence (4 groups), colour of dry anther (4 groups), panicle length of branches (4 groups), panicle shape (4 groups) and caryopsis colour (4 groups).

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  • The fourteen genotypes selected were grown during Kharif-2014 at in order to evaluate the performance of fourteen elite accessions of rice for yield and its component traits. The present experiment was laid under randomized complete block design with three replications at field under aerobic rice/biotechnology rice research laboratory, Department of Plant Biotechnology, University of Agricultural Sciences, GKVK campus, Bangalore, India during Kharif-2014.

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  • The present study, combining ability estimates were worked out through Line × Tester analysis of 32 hybrids developed by crossing eight lines with four testers to know the genetic architecture of 11 morphological traits under coastal saline condition. The present study was conducted at Plant Breeding Farm, Department of Genetic and Plant Breeding, Faculty of Agriculture, Annamalai University to estimate combining ability, gene action and proportional contribution of cross components in rice genotypes under coastal salinity.

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  • Genetic analysis of biparental progenies resulted that, the traits viz,. days to 50% RWC and plant height were governed by additive gene action for improvement of these traits while, days to flowering, productive tillers per plant, 1000- grain weight, and grain yield can be improved by heterosis breeding. Main objective of the study was to evaluate rice genotypes for yield and yield related traits for heterosis to develop new breeding lines that can perform better in water stress conditions.

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  • The occurrence of drought stress at seed filling stage is known to cause severe yield reduction in soybean especially where the crop is grown in rainfed conditions. Screening of large germplasm lines under natural drought conditions is extremely difficult to execute due to unusual rains. In the present study, about 328 germplasm lines are screened for terminal drought tolerance by spraying 0.2% of potassium iodide (KI) at R5 stage and the tolerant lines were again retested under similar conditions in the subsequent year.

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  • The present study was undertaken to assess the genetic diversity present in the ninety six oat (Avena sativa L.) germplasm lines representing the collection from various ecogeographical regions of the country. On the basis of mean performance of the genotypes for fodder traits; OL 10 for plant height (60.09cm), OL 1636 for leaf length (53.55cm) and JO 03-95 for leaf width (1.86 cm), OS 7 for GFY (3.38kg/plot) and JHO-2001-1 for DMY (0.61 kg/plot) were found to be superior...

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  • In order to appraise genetic parameters and variability in the crop, the information on the nature and degree of diversity in the genotypes is crucial. Thirty two genotypes along with two commercial varieties (PB-89 and SolanNirog) as check were evaluated for assessing genetic variability and heritability for seventeen different agro-morphological characters. The mean sums of squares due to genotype were highly significant for all of the characters.

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  • For the establishment of the distinctness among 31 accessions of Oryza glaberrima, eight morphological traits following Distinctness, Uniformity and Stability test (DUS) studied. Out of 31 accessions studied, two accessions viz., EC861804, EC861805 were found to be highly distinct as they possessed distinct traits namely purple split ligule, medium green leaves, erect flag leaf, presence of awn along with lodging tolerance indicating their usefulness as donors for crop improvement programmes. Analysis of variance revealed significant differences for all the characters studied.

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  • Studies were conducted on the performance and morphological characterization of okra for yield and YVMV disease. None of the genotypes found complete free from YVMV infection. However, on scoring test few of them got resistant mark for YVMV like IIHR 129, IIHR-123, and IIHR 120. The characters like plant height, plant canopy, fruit yield per plant, PDI and CI have found wide variation. The character’s association revealed that the association of traits is not only due to genes but also due to the favorable impact of environment.

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  • The present investigation is carried out to study the genetic divergence among 35 finger millet genotypes for fourteen morphological characters using Mahalanobis D 2 statistics during kharif, 2014.

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  • The present study aimed to estimate the genetic variability, heritability and genetic advance for yield and yield components of four faba bean genotypes and correlation coefficients between seed yield and other traits were also investigated.

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  • Castor genotypes (30) were evaluated for ten yield and yield attributing characters to study the genetic diversity existing among them by using Mahalanobis D2 statistics. Analysis of variance revealed significant difference among genotypes for all the ten character studied. Based on the D2 values the genotypes were grouped into six different clusters. Maximum inter cluster distance was observed between III and VI (6170.49) while, lowest divergence was noticed between clusters I and II (742.

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  • Fifty-five pea (Pisum sativum L.) genotypes were evaluated using eleven morphological traits to assess the interrelationship among yield and yield-related attributes and their direct and indirect effects on seed yield. Based on the correlation coefficient analysis, seed yield per plant showed positive and significant association with green pod yield per plant, shell weight per plant, number of pods per plant and length of pod both at genotypic and phenotypic levels.

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  • The present study was conducted to evaluate 50 chickpea germplasm accession to understand the magnitude of variability, heritability, genetic advance and the association of various yield components and their direct and indirect influence on yield of chickpea based on twelve agro-morphological traits.

    pdf8p nguathienthan2 25-12-2019 20 0   Download

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