Classification and quality of Acca sellowiana (O. Berg) Burret seeds as to tolerance to desiccation

The objective of this paper was to determine the physiological behavior and seed quality of five genotypes of Acca sellowiana regarding desiccation. Seeds were obtained from five plants of urban backyards in the cities of Dois Vizinhos - PR (A1, A2) and Vacaria - RS (A3, A4, A5). The experiment was conducted in a bifactor arrangement (5x3), with five genotypes and three levels of water content (28%, 15% and 5%), arranged into complete randomized block design, with four replicates of 50 seeds each. Seeds were germinated on absorbent paper soaked with water, being kept in BOD chamber under temperature of 25±3°C with photoperiod of 16 hours. Germination percentage, speed index and average time were assessed by counting seeds every two days for 50 days, starting from the moment of radicle emergence. No significant differences were observed for germination percentage and all genotypes surpassing 79% of germination. Desiccation of seeds had low influence on germination speed index and average time of germination, although genotype influence was verified due to genetic variability. Genotype A5 has seeds with superior quality from the others. Acca sellowiana seeds have orthodox behavior.

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Lignification of the plant and seed quality of RR soybeans sprayed with herbicide glyphosate

Revista CERES ◽

10.1590/s0034-737x2013000200019 ◽

2013 ◽

Vol 60 (2) ◽

pp. 286-292

Author(s):

Cristiane Fortes Gris ◽

Edila Vilela de Resende Von Pinho ◽

Maria Laene de Moreira Carvalho ◽

Rafael Parreira Diniz ◽

Thaís de Andrade

Keyword(s):

Seed Quality ◽

Lignin Content ◽

Block Design ◽

Accelerated Aging ◽

Soybean Seeds ◽

Randomized Block Design ◽

Physiological Quality ◽

Hand Weeding ◽

Herbicide Glyphosate

Differences in levels of lignin in the plant between conventional and transgenic cultivars RR has been reported by several authors, however, there are few studies evaluating the influence of spraying of glyphosate on the lignin in the plant and RR soybean seeds. The aim of this study was to evaluate the physiological quality of RR transgenic soybean seeds and the lignin contents of plants sprayed with the herbicide glyphosate. The assays were conducted both in greenhouse and field in the municipality of Lavras, MG, in the agricultural year 2007/08. The experiment was arranged in a splitplot design with four replicates, considering the treatments hand weeding and herbicide glyphosate as plots, and five RR soybean cultivars (BRS 245 RR, BRS 247 RR, Valiosa RR, Silvânia RR and Baliza RR) as splitplots. In the greenhouse, the cultivars tested were BRS 245 RR and Valiosa RR in a randomized block design with four replicates. The sprayings were carried out at stages V3, V7 and early R5 (3L/ha). The 1000 seed weight, mechanical injury, germination and germination velocity index, emergence velocity index, accelerated aging, electrical conductivity and water soaking seed test, lignin content in the seed coat, in the stem and legumes were determined. The spraying of glyphosate herbicide, in greenhouse and field, did not alter the physiological quality of seeds and the lignin contents in the plant.

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Yield and physiological quality of wheat seeds after desiccation with different herbicides

Journal of Seed Science ◽

10.1590/2317-1545v39n3172506 ◽

2017 ◽

Vol 39 (3) ◽

pp. 254-261 ◽

Cited By ~ 4

Author(s):

Fábio Henrique Krenchinski ◽

Victor José Salomão Cesco ◽

Danilo Morilha Rodrigues ◽

Vinicius Gabriel Caneppele Pereira ◽

Alfredo Junior Paiola Albrecht ◽

...

Keyword(s):

Seed Quality ◽

Block Design ◽

Dry Mass ◽

Wheat Crop ◽

Glufosinate Ammonium ◽

Randomized Block Design ◽

Seedling Length ◽

Physiological Quality ◽

Wheat Seeds

Abstract: Some desiccation techniques for harvesting wheat may affect seed quality. The objective of this study was to evaluate the effect of different desiccant herbicides applied to the wheat crop and their effects on the production and seed quality. The experiment was conducted with cultivar COODETEC 150 (CD 150) in two sites in Palotina (Paraná state, Brazil) with a randomized block design consisting of 7 treatments (desiccation herbicides) and 4 replications. Desiccation was realized when 50% of the plants were in stage 80 with seeds in powdery or mass consistency. The variables analyzed were percentage of moisture content after harvest, Yield, hectoliter weight, mass of 100 seeds, vigor, germination, fresh mass of seedlings, dry mass of seedlings and root length. The herbicides carfentrazone-ethyl and clethodim were the ones that promoted greatest reduction in vigor. The herbicide paraquat caused reduction in seedling length. There was a reduction in the mass of 100 seeds for glufosinate-ammonium, clethodim, diquat and carfentrazone-ethyl. Glufosinate-ammonium, paraquat, glyphosate, clethodim and diquat caused reduction in yield. Desiccation of Cultivar CD 150 at stage 80 is not recommended, since plant Yield and physiological seed parameters were adversely affected by herbicides.

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Quality of organically produced bell pepper seeds

Journal of Seed Science ◽

10.1590/2317-1545v39n2159173 ◽

2017 ◽

Vol 39 (2) ◽

pp. 100-105 ◽

Cited By ~ 1

Author(s):

José Luiz Nogueira ◽

Bruna Ariane da Silva ◽

Átila Francisco Mógor ◽

Camila Ribeiro de Souza Grzybowski ◽

Maristela Panobianco

Keyword(s):

Block Design ◽

Seedling Emergence ◽

Germination Percentage ◽

Bell Pepper ◽

Plant Management ◽

Ripening Stage ◽

Seed Moisture Content ◽

Organic System ◽

Randomized Block Design

Abstract: The production of bell pepper seeds may be affected by the plant management and harvesting point of fruits. The goal of this study was to evaluate the quality of organically produced bell pepper seeds according to free plant growth, branch thinning and ripening stage. The experiment was conducted in a greenhouse with randomized block design; plants were tutored to parallel tape supports, with and without branch thinning, and fruits were harvested at three ripening stages (completely green, green/reddish and red). The following determinations were made: seed moisture content of at the time of harvest and after post-harvest rest, number of seeds per fruit, seed germination, and seedling emergence. It is possible to conclude that the production of bell pepper seeds in an organic system is viable, resulting in seeds with a germination percentage and seedling emergence above 90%. The management system of plants without branch thinning results in the production of seeds with greater viability and higher quantity per fruit. The cultivation of bell peppers for seed production may be carried out with fruits at the green ripening stage (51 days after anthesis), without any quality loss.

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Castor bean cake in top-dressing application as a source of nitrogen on the production and quality of zucchini organic seeds

Bioscience Journal ◽

10.14393/bj-v36n0a2020-53563 ◽

2020 ◽

Vol 36 ◽

Author(s):

Natália de Brito Lima Lanna ◽

Estefânia Martins Bardiviesso ◽

Ana Emília Barbosa Tavares ◽

Priscilla Nátaly de Lima Silva ◽

Pâmela Gomes Nakada-Freitas ◽

...

Keyword(s):

Castor Bean ◽

Seed Quality ◽

Block Design ◽

The Other ◽

Control Treatment ◽

Macronutrient Content ◽

Randomized Block Design ◽

Fruit Mass ◽

Number Of Seeds

Studies in vegetables show that fertilization influences seed production positively, however, when the quality of the seeds is analyzed, the results are mostly inconsistent. The objective of this study was to evaluate the effect of castor bean cake (CBC) dose splitting in top-dressing application on the production and quality of zucchini organic seeds, as well as its effect on the macronutrient content of fruits and seeds. The experimental design was a randomized block design and four replications. There were 13 treatments with four doses of CBC in top-dressing (1.7, 3.4, 5.1 and 6.8 t ha-1) per three applications (33.3-33.3-33.3%, 50-50% and 33-50-17%) and the control treatment without any kind of top-dressing fertilization. The study evaluated the number of ripe fruits per plant, the production (number and mass) of seeds per fruit and per plant, the mass of one hundred seeds, seed germination, first germination count, and macronutrient content in the diagnosis leaf, in mature fruits (without seeds) and seeds. The number of ripe fruits per plant was not affected by the CBC doses in top-dressing, neither by the splitting of the applications. It was observed that the number of seeds per fruit, mass of seeds per fruit and mass of seeds per plant showed quadratic behavior. Regarding seed quality, only the 1.7; 3.4 and 5.1 t ha-1 doses produced seed with superior quality than the other doses. In conclusion, the CBC doses increased the number of seeds per fruit, mass of seeds per fruit and per plant up to the 4.5t ha-1 dose, approximately.

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KERAGAMAN VIABILITAS BENIH 20 GENOTIPE PEPAYA (Carica papaya L.)

JURNAL AGROTEKNOLOGI ◽

10.24014/ja.v7i2.3356 ◽

2017 ◽

Vol 8 (1) ◽

pp. 23

Author(s):

Noflindawati Noflindawati ◽

Tri Budiyanti ◽

Dewi Fatria

Keyword(s):

Seed Quality ◽

Block Design ◽

Maximum Growth ◽

Growth Potential ◽

Tropical Fruit ◽

Randomized Block Design ◽

High Viability ◽

Vigor Index ◽

Germination Vigor

Germination problems in the commerce in general are the seeds will experience a period save on condition of sub optium.The seeds that have high viability and vigor which is expected to be passed on to seed derivatives that are genetically seed quality can be maintained. The study aims to determine the diversity of physiological seed quality of 20 genotypes of papaya collection Tropical Fruit Research Institute. Research conducted at the KP Sumani Balitbu Tropika 2015. Materials: 20 genotype papaya seeds. Research using a randomized block design with three replications treatment of 20 genotypes of papaya. Results of the study showed germination of 20 genotypes of papaya tested ranged from 33-93%, vigor index among 11-81%, the maximum growth potential of among 16-100%, and the plant fresh weight ranges from 0.5 - 15 g. Genetic diversity germination, the seeds of papaya is very high. Characters germination, vigor index and wet weights, the character is inherited as too high the heritability

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Seed Maturity Indices of Semecarpus anacardium Linn under Garhwal Himalayan Condition: A Highly Valuable Medicinal Tree

European Journal of Medicinal Plants ◽

10.9734/ejmp/2020/v31i230215 ◽

2020 ◽

pp. 40-44

Author(s):

P. Rathiesh ◽

Ajeet Kumar Negi

Keyword(s):

Seed Quality ◽

Block Design ◽

Petri Dish ◽

Germination Percentage ◽

Semecarpus Anacardium ◽

Medicinal Tree ◽

Seed Maturity ◽

Randomized Block Design ◽

Maturity Indices ◽

Forest Division

In the Himalayan region, there are several tree species which are relatively less studied particularly in reference to their seed maturation. Semecarpus anacardium Linn (Marking Nut) is a medicinal tree which is found in Garhwal Himalaya and mostly propagated through seeds. In perennial crops, selection of fruits is an important management techniques adopted after fruit harvest as it plays an important role in production of high quality seedlings in nursery. Hence, studies were formulated to evaluate the influence of fruit colour variation on seed quality characters. Fresh marking nut were collected from Dehradun, Lansdowne and Kalagarh Forest Division, Uttarakhand, India. The fruits were categorized based on the colour into four different groups such as T1 as Ground collection (dried), T2 as fully ripened fruits, T3 as Semi ripened & T4 as unripened (fully green) and seeds were sown on petri dish with five replications of 20 seeds each by Randomized block design (CRD) under Laboratory condition. In all parameters, seed maturity indices- ground collection and fully ripened seeds showed significant results with respect to germination percentage, germination capacity, sedling vigour index, collar diameter and height.

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The role of glyphosate in RR soybean production and seed quality

Planta Daninha ◽

10.1590/s0100-83582014000200018 ◽

2014 ◽

Vol 32 (2) ◽

pp. 401-407 ◽

Cited By ~ 3

Author(s):

L.P. Albrecht ◽

A.J.P. Albrecht ◽

A.L. Braccini ◽

R.S. Oliveira Jr. ◽

L.H.S. Zobiole ◽

...

Keyword(s):

Yield Components ◽

Field Experiments ◽

Seed Quality ◽

Block Design ◽

Soybean Seeds ◽

Roundup Ready ◽

Development Stages ◽

Randomized Block Design

This study aimed to evaluate the production components and quality of RR soybean seeds (Roundup Ready®), after application of increasing rates of gliphosate. Field experiments were conducted in Mandaguari, Paraná, during two seasons. Treatments consisted of five doses of glyphosate. All applications were performed once, between development stages V4 and V5. The experiment was arranged in a completely randomized block design, with four replicates. Data were subjected to analysis of variance, and when significant, t-tests and a regression analysis were applied to verify the behavior of the treatments. The physiological and sanitary quality, yield and mass of one thousand seeds were evaluated. The results indicated that seed quality can be adversely affected by glyphosate, and also showed a probable reduction in yield components with increasing rates of application.

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Tolerance level of green seed in soybean seed lots after storage

Revista Brasileira de Sementes ◽

10.1590/s0101-31222007000300015 ◽

2007 ◽

Vol 29 (3) ◽

pp. 128-138 ◽

Cited By ~ 4

Author(s):

Gilda Pizzolante de Pádua ◽

José De Barros França-Neto ◽

Maria Laene Moreira de Carvalho ◽

Odair Costa ◽

Francisco Carlos Krzyzanowski ◽

...

Keyword(s):

Seed Quality ◽

Block Design ◽

Soybean Seed ◽

Accelerated Aging ◽

Mato Grosso ◽

Chlorophyll Contents ◽

Green Seed ◽

Root Diseases ◽

Randomized Block Design

The occurrence of green soybean seed due to forced maturation or premature plant death caused by drought or foliar and/or root diseases has been common in several Brazilian production areas. Physiological quality of seed lots with green seed may have their germination and vigor potentials affected and therefore discarded by the grain industry. The objective of this experiment was to determine the maximum tolerated level of green seed in soybean seed lots, which is information of major importance for seed producers when taking the decision whether to sell these lots. Soybean seed of the cultivars CD 206, produced in Ubirata, Parana, and ‘FMT Tucunare,’ produced in Alto Garças, Mato Grosso, were used in the study. Green seed and yellow seed of both cultivars were mixed in the following proportions: 0%, 3%, 6%, 9%, 12%, 15%, 20%, 30%, 40%, 50%, 75% and 100%. Seed quality was evaluated by the germination, accelerated aging, tetrazolium and electrical conductivity tests. The contents of a, b and total chlorophyll in the seed were also determined. A complete randomized block design in a factorial scheme (two cultivars x 12 levels of green seed) was used. Seed quality was negatively affected and chlorophyll contents incremented with the increase in the percentage of green seed. Seed germination, viability and vigor, measured by the accelerated aging test, were not reduced with levels of up to 3% green seed, for both cultivars. Levels above 6% green seed significantly reduced the quality of the seed. The quality of seed lots with 9% or more green seed was significantly reduced to the point that their commercialization is not recommended.

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Respons Pertumbuhan, Fisiologi, dan Produksi Kedelai terhadap Pemberian Pupuk Nitrogen dengan Dosis dan Waktu yang Berbeda

Jurnal Ilmu Pertanian Indonesia ◽

10.18343/jipi.26.1.24 ◽

2020 ◽

Vol 26 (1) ◽

pp. 24-31

Author(s):

Firdaus Puja Santana ◽

Munif Ghulamahdi ◽

Iskandar Lubis

Keyword(s):

Seed Quality ◽

Block Design ◽

N Fertilization ◽

Planting Date ◽

Seed Filling ◽

Randomized Block Design ◽

Two Factors ◽

Filling Phase ◽

Soybean Plants

Fertilization is needed to support the growth of soybean plants. Nitrogen is a type of fertilizer that is needed by soybeans in considerable amounts. Aplication of nitrogen at different times is able to affect the production and quality of soybean seeds. The purpose of this study was to attain information about the morphology, physiology, and production responses of two soybean varieties to the supply of N. This research was conducted at the Cikabayan Experimental Station, IPB University, Dramaga, Bogor Regency. This study used a completely randomized block design with two factors, namely two soybean varieties consisting of Tanggamus and Biosoy 1, and four combinations of N fertilizer doses that were without N fertilization, fertilized N at planting date, fertilized N at the seed filling phase, and fertilized N at planting date+seed filling phase with two replications. The dosage of urea fertilizer used was 25 kg ha-1, so that the N dosages is obtained 11,5 kg ha-1. The results showed that the application of N fertilizers at planting and during the seed filling phase (N3) was an effective time to increase soybean production. Keywords: fertilization, morphology, seed quality

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Influence Mf Nitrogen and Phosphorus on Yield and Seed Quality of French Bean

Bangladesh Agronomy Journal ◽

10.3329/baj.v18i2.28897 ◽

2016 ◽

Vol 18 (2) ◽

pp. 1-8

Author(s):

SS Kakon ◽

Md SU Bhuiyan ◽

SMA Hossain

Keyword(s):

Seed Yield ◽

Seed Quality ◽

Agricultural Research ◽

Block Design ◽

Winter Season ◽

Germination Percentage ◽

French Bean ◽

Research Field ◽

Nitrogen And Phosphorus

The experiment was conducted at the research field of Agronomy Division, Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur during Rabi (winter) season of 2010-11 to 2011-12 to determine the optimum rate of nitrogen and phosphorus fertilizer on yield and seed quality of French bean. A randomized complete block design was followed with ten treatment combinations such as N0P0, N0 P44, N50 P44, N100 P44, N150 P44, N200 P44, N150P0, N150P22, N150P33 and N150P55. Number of pods and yield of French bean were significantly increased with the increase in N (150) and P (44) kg ha--1. Averaged over the years, maximum number of pod (9.45 plant-1) and seed yield (1563.33 kg ha-1) were obtained when N and P were applied at the rate of 150 and 44 kg ha-1, respectively while lowest yield to N0P0 treatment in both the years. The treatment (N150P44 kg ha-1) gave the highest seed yield which was 51.4 and 54.30% higher than the control. Quality in terms of germination percentage and vigour index of harvested seed was also significantly influenced by higher doses of N and P while the lowest seed quality from plants that received no fertilizer in both the years.Bangladesh Agron. J. 2015, 18(2): 1-8

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