scholarly journals Seed Characterization and Relationships between Seed and Cotyledon Properties in Lagenaria spp. Accessions

HortScience ◽  
2020 ◽  
pp. 1-8
Author(s):  
Nebahat Sari ◽  
Emily Silverman ◽  
Danny Reiland ◽  
Todd C. Wehner
Keyword(s):  
Seed Weight ◽  
Germplasm Collection ◽  
Seed Morphology ◽  
Bottle Gourd ◽  
African Countries ◽  
Department Of Agriculture ◽  
Seed Length ◽  
Seed Width ◽  
The Relationship ◽  
Common Character

Bottle gourd [Lagenaria siceraria (Molina) Standl.] is widely produced in some Asian and African countries as a fresh vegetable as well as for seed consumption. A major use of bottle gourd is for rootstocks in grafted watermelon production. There are several centers where bottle gourd genetic resources are maintained, with the U.S. Department of Agriculture (USDA) germplasm collection being one of the most important. There is little published information on the relationship between seed morphology and the early establishment of seedlings in bottle gourd. The objective of this study was to determine seed characterization, morphology, and cotyledon shape in 163 Lagenaria spp. accessions and measure any relationship between seed and cotyledon characteristics. In USDA Lagenaria germplasm, it has been determined that the common character in seeds was medium in terms of seed size (53% of accessions), intermediate in seed surface lustre (39% of accessions), brown in seedcoat color (89% of accessions), thin and uniform in seed margin (35% of accessions), and tan in seed margin color (64% of accessions). According to the research results, seed weight ranged from 0.11 g (PI 500820) to 0.36 g (PI 675112), seed length from 13.17 mm (PI 500820) to 23.68 mm (PI 675112), and seed width from 5.86 (PI 500808) to 11.21 mm (PI 491274). Cotyledon length ranged from 5.46 cm (PI 368640) to 2.47 cm (PI 381850). The widest cotyledon was 3.00 cm (PI 534552), and the narrowest was 1.50 cm (PI 381831). Interesting correlations were observed for seed weight with seed length (R2 = 0.259), and cotyledon length with cotyledon width (R2 = 0.547).

scholarly journals Germplasm Collection and Seed Diversity of Cowpea (Vigna unguiculata (L.) Walp.)

2018 ◽  
Vol 6 (4) ◽  
Author(s):  
Nadiya A. Al-Saady ◽  
Saleem K Nadaf ◽  
Ali H. Al-Lawati ◽  
Saleh A. Al-Hinai
Keyword(s):  
Vigna Unguiculata ◽  
Seed Weight ◽  
Germplasm Collection ◽  
Principal Component ◽  
Color Pattern ◽  
North Coast ◽  
Critical Examination ◽  
Seed Color ◽  
Seed Length ◽  
100 Seed Weight

Cowpea (Vigna unguiculata L.) is a legume crop cultivated in whole of Arabian Peninsula countries including Oman as a dual crop for both food and fodder during summer. Both consumers and farmers prefer large size seeds. This paper presents the results of collecting missions of indigenous cowpea germplasm and analysis of seed diversity of collected accessions. The collecting mission led to the accumulation of seed samples of 64 accessions with large number from the governorates of Sharqiya (North Eastern) (19), followed by Dhofar (Southern) (17), Al-Dakhiliyah (Interior) (10), South Batinah (South Coast) (9), North Batinah (North coast) (5) and Dhahira & Buraimi (4). The accessions were diverse in respect to all the seed traits studied, i.e. seed length (cm) and width (cm), 100-seed weight (g) and seed color. The accessions were grouped into 14 genetically diverse clusters based on the Principal Component Analysis, which revealed the contribution of seed length and 100-seed weight to the total variation existing in indigenous germplasm collected from all the governorates of Oman. The results of critical examination of seed color pattern of these samples indicated the presence of as many as 31 groups of which the largest group had 16 accessions followed by a group with 4 accessions, 2 groups with 3 accessions each and 9 groups with 2 accessions. There were 19 accessions numbering 193, 197, 251, 269, 276, 280, 293, 297, 301, 303, 325, 327, 328, 331, 332, 333, 339, 343 and 347 which formed groups of their own due to a unique combination of seed coat colors.

scholarly journals Evaluation of Seed Nut Size as Index of Selection for Superior Seed Quality Attributes in Two Biotypes of Cashew (Anacardium occidentale)

2015 ◽  
Vol 72 (1) ◽  
pp. 69-81
Author(s):  
T. O. Kehinde ◽  
M. A. Adebisi ◽  
A. O. Alegiledoye ◽  
O. O. Ajani ◽  
K. A. Shofuyi
Keyword(s):  
Growth Rate ◽  
Seed Germination ◽  
Seedling Growth ◽  
Seed Weight ◽  
Seed Quality ◽  
Seed Length ◽  
Seedling Vigour ◽  
Seedling Growth Rate ◽  
Seed Width ◽  
100 Seed Weight

Abstract Quality seed nuts are germane to propagation of the cashew plant. Seed nut fraction and genotypes have been identified to influence seed quality of crop plant. Unexpectedly, seed size effect has not been well documented in Brazilian and local biotypes of cashew grown in Nigeria. An experiment was initiated to investigate the effect of three nut sizes and two biotypes of cashew on seed quality (physical and physiological) traits. Seed nut were collected from three cashew plants of the same age of each of the biotypes and were allowed to stay for 60 days after collection. The experiment was carried out in a factorial arrangement laid out in a completely randomized design with three replicates using two factors (nut size and biotypes) in 2011 cropping season in both laboratory and screen house tests. Data were collected on physical characters such as seed length, seed width, 100 seed weight and seed imbibition rate while physiological characters were seed germination and early vigour traits. Data obtained were analysed statistically using Tukey HSD test at 5% probability level. The result revealed that some of the characters were significantly different from one another. Seed nut fraction and biotype had considerable effect on seed length, seed width, seed imbibition rate and 100 seed weight. The two factors (nut size and biotype) interaction had profound effect on seed width only. On seed physiological quality, biotype effect was significant on seedling fresh and dry weights and seedling growth rate whereas seed nut size had considerable effect on seed germination, seedling vigour index, seedling fresh weight and seedling growth rate. The interaction effect of nut size and biotype recorded significant effect on the above four characters. Brazilian biotype had superior physical characters (seed length, width and weight) but with low imbibitions rate while medium and large nut sizes gave the highest seed germination and seedling vigour. Also, medium and large nuts had the highest seedling fresh weight whereas the highest seedling growth rate was recorded with small size seed. However, large, medium and small nut sizes of local biotype had the highest imbibition rate, whereas small, medium and large nut size of Brazilian biotype gave the highest 100 seed weight. On seedling emergence, large nuts of local biotype recorded the highest seedling emergence and seedling vigour index. Medium nuts of the two biotypes of cashew are recommended for cashew seed multiplication. Further research on physiology of cashew nut sizes during storage and osmo and hydro priming treatment effect are necessary and therefore advocated.

Seed morphology of the genus Scrophularia L. (Scrophulariaceae) from Turkey and its taxonomic implications

Phytotaxa ◽  
2020 ◽  
Vol 434 (1) ◽  
pp. 35-64
Author(s):  
FUNDA ÖZBEK ◽  
MEHMET ERKAN UZUNHİSARCIKLI ◽  
MURAT EKİCİ ◽  
EBRU DOĞAN GÜNER ◽  
NUR MÜNEVVER PINAR
Keyword(s):  
Electron Microscopy ◽  
Morphological Characteristics ◽  
Principal Component ◽  
Diagnostic Value ◽  
Morphological Characters ◽  
Seed Morphology ◽  
Seed Length ◽  
Taxonomic Implications ◽  
Seed Width ◽  
Scanning Electron

73 taxa of the genus Scrophularia (Scrophulariaceae) from Turkey have been investigated using light stereomicroscope (LM) and scanning electron microscopy (SEM) in order to describe their seed morphological characteristics and to evaluate the diagnostic value of these features as a contribution to the genus systematics. The seeds are oblong, ellipsoid, ovoid or obovoid in shape and light or dark brown, blackish-brown to black in colour. The seed length ranges from 0.41 to 2.04 mm and seed width from 0.24 to 1.33 mm. All investigated taxa have bireticulate-alveolate ornamentation with vesicles on the corners of secondary reticulum cells except of S. zuvandica. The alveoli are oblong, orbicular and linear with a size of 7.63–143.1 × 21.62–314.2 µm. Cluster analysis and principal component analysis have been used to determine the contribution of seed morphological characters to the taxa relationships. Numerical analysis has revealed that the seed size and the secondary reticulum properties have significant importance in taxonomy of the genus for distinguishing taxa from each other.

scholarly journals Seed development stages of kale (Brassica oleracea var. acephala L.) genotypes in Turkey

2011 ◽  
Vol 32 (No. 4) ◽  
pp. 147-153 ◽  
Author(s):  
E. Demir ◽  
A. Balkaya
Keyword(s):  
Brassica Oleracea ◽  
Seed Development ◽  
Germination Rate ◽  
Maximum Level ◽  
Brassica Species ◽  
Seed Morphology ◽  
Seed Length ◽  
Seed Moisture ◽  
Seed Width ◽  
Embryo Length

This research determined the stages of kale (Brassica oleracea var. acephala L.) seed development in Samsun province, Turkey, between 2002 and 2003. Plants of inbred kale lines (55TE07, 55TK09, 52PE09, 61ÇY01 and 67DE01) were grown. On the basis of seed and embryo colour, seed morphology (seed length, seed width and embryo length), seed development can be divided into 7 discrete but contiguous stages. The germination rate of inbred lines was at its maximum, or near to its maximum, until the seed moisture declined to 50%. Germination rates reached a maximum level at 65 days after pollination (DAP). It was concluded that kale seeds should be harvested when pods became brown in stage 7 (65 DAP). This study will be used for comparisons with seed development in other Brassica species.  

Phenotypic Variation and Seed Characters Evaluation in Different Provenances of Albizia Lebbeck (L.) Benth.

2014 ◽  
Vol 37 (1) ◽  
pp. 35-40
Author(s):  
I. Thakur ◽  
Sukesh Dhuppe ◽  
J. Sharma
Keyword(s):  
Coefficient Of Variation ◽  
Seed Weight ◽  
Genetic Parameters ◽  
Tree Height ◽  
Seed Traits ◽  
Albizia Lebbeck ◽  
Seed Length ◽  
Phenotypic Characters ◽  
Seed Width ◽  
100 Seed Weight

The present investigation on Albizia lebbeck (L.) Benth. was carried out to estimate the genetic variability for some phenotypic characters and seed traits of trees selected from fifteen different provenances. Analysis of variance showed significant differences for all the characters viz; tree height, diameter, crown spread, seed length, seed width and 100 seed weight. Phenotypic coefficient of variation (PCV), genotypic coefficient of variation (GCV) and estimates of genetic parameters viz; heritability, genetic advance and genetic gain have also been discussed.

scholarly journals Faba bean (Vicia Faba L.) Germplasm Collection and its Diversity in Oman

2018 ◽  
Author(s):  
Nadiya AlSaady ◽  
Saleem Nadaf ◽  
Ali Al-Lawati ◽  
Saleh Al-Hinai
Keyword(s):  
Vicia Faba ◽  
Faba Bean ◽  
Seed Weight ◽  
Germplasm Collection ◽  
Principal Component ◽  
Seed Color ◽  
College Of Agriculture ◽  
Mountain Areas ◽  
Sultan Qaboos University ◽  
Seed Width

Faba bean (Vicia faba L.) is one of the popular pulse crops grown for traditional consumption, not only in Oman but also in Arabian Peninsula and other countries. In Oman, the famers living in and around high altitude mountain areas mostly grow it. This paper highlights features of variation in seed color and diversity in seed traits found in collected accessions from the joint collecting missions of 2008-2010 between the staff of College of Agriculture, Sultan Qaboos University and the Ministry of Agriculture & Fisheries throughout all the governorates of the Sultanate of Oman. 41 seed samples/accessions were collected from 38 sites. Of these, the highest number of accessions was collected from Batinah South governorate (38) represented mostly by the mountains of Rustaq, followed by the mountains of Interior/Al-Dakhliyah (8), and Dhahira & Buraimi (4). Only one accession was collected from mountains of the Eastern/ Al-Sharqiyah governorates. The seed accessions were found diverse with respect to all seed characters studied, i.e. seed length (cm) and width (cm) and 1000-seed weight (g) besides seed color. The faba bean accessions were classified into 9 genetically diverse clusters based on the Principal Component Analysis, which indicated that the contribution of seed width and 100-seed weight to the total variation existing in indigenous germplasm collected from all the governorates of Oman. It was found from the critical analysis of seed colors that 38 accessions were homogenous (pure) with one color and three were heterogeneous with combinations of colors.

A survey of the castor oil content, seed weight and seed-coat colour on the United States Department of Agriculture germplasm collection

2010 ◽  
Vol 8 (3) ◽  
pp. 229-231 ◽  
Author(s):  
M. L. Wang ◽  
J. B. Morris ◽  
D. L. Pinnow ◽  
J. Davis ◽  
P. Raymer ◽  
...  
Keyword(s):  
Seed Weight ◽  
Oil Content ◽  
Germplasm Collection ◽  
The United States ◽  
Coat Colour ◽  
Biodiesel Production ◽  
United States Department ◽  
Department Of Agriculture ◽  
Seed Coat Colour ◽  
States Department

Castor (Ricinus communis L.) is an important non-edible oilseed crop that can potentially be used as feedstock for biodiesel production. There are 1033 accessions in the United States Department of Agriculture (USDA) castor germplasm collection. The range of oil content in these accessions has never been surveyed. For exploiting castor as a feedstock for biodiesel production, the entire USDA castor collection was procured from the National Plant Germplasm System (Germplasm Resources Information Network) and the oil content was measured with nuclear magnetic resonance. The variation of oil content among all castor accessions ranged from 37.2 to 60.6% with an average of 48.2%. One hundred seed weights were determined and seed-coat colour was also recorded from each accession. One hundred seed weight ranged from 10.1 to 73.3 g with an average of 28.3 g. There was a significant correlation between seed weight and oil content but the correlation value was low (r = 0.1572, P < 0.0001). Fifty accessions with a wide range of oil content were selected to be field grown for further evaluation. The results obtained from this survey will be useful for castor breeders seeking germplasm accessions with high oil content in the collection.

Correlation and Multiple Regression Model for Economic Traits of Local Rice (Oryza sativa L.) in Upland Rice System

2018 ◽  
Vol 879 ◽  
pp. 71-77 ◽  
Author(s):  
Tanaporn Kajonphol ◽  
Nipaporn Seetaput ◽  
Monamorn Precharattana ◽  
Chontira Sangsiri
Keyword(s):  
Oryza Sativa ◽  
Multiple Regression ◽  
Plant Height ◽  
Seed Weight ◽  
Panicle Length ◽  
Economic Traits ◽  
Seed Length ◽  
Seed Width ◽  
Total Seed ◽  
100 Seed Weight

This study was conducted to stabilize the correlation parameter for economic traits of local rice (Oryza sativa L.). The results revealed that the number of tiller (NT) was positively correlated with plant height (PH, r = 0.55211), number of panicle (NP, r = 0.48390), panicle length (PL, r = 0.31181), seed length (SL, r = 0.33430), total seed weight (TSW, r = 0.28122), however, the negatively correlated with seed width (SW, r = -0.26725). Plant height (PH) was negatively correlated with seed width (SW, r = -0.42971) and 100 seed weight (HS, r = -0.28991). Number of panicle (NP) was positively correlated with panicle length (PL, r = 0.32888) and total seed weight (TSW = 0.75128). Panicle length (PL) was positively correlated with number of seed (NS, r = 0.38332), seed length (SL, r = 0.53582) and total seed weight (TSW, r = 0.51078). Number of seed (NS) was positively correlated with total seed weight (TS, r = 0.54696). Seed length (SL) was positively correlated with 100 seed weight (HS, r = 0.46799) and total seed weight (TSW, r = 0.33826). Seed width (SW) was positively correlated with 100 seed weight (HS, r = 0.66074). In this experiment, multiple regression formula was Y(TSW) = -51.31 + 0.045(PH) + 2.77(NP) + 0.21(NS) + 8.88(HS) with R2 = 0.5644. Our results represent the relationship among traits and making for design a crop model in rice planting system.

Seed flora of La Pérouse Bay, Manitoba, Canada: a DELTA database of morphological and ecological characters

2000 ◽  
Vol 78 (4) ◽  
pp. 481-496 ◽  
Author(s):  
E R Chang ◽  
T A Dickinson ◽  
R L Jefferies
Keyword(s):  
Morphological Characteristics ◽  
Seed Morphology ◽  
Hudson Bay ◽  
Soil Cores ◽  
James Bay ◽  
Seed Shape ◽  
Seed Length ◽  
Ecological Information ◽  
The World ◽  
Seed Width

An identification database for seeds in coastal habitats at La Pérouse Bay, Manitoba, Canada, was developed using the DELTA (DEscriptive Language for Taxonomy) format and the program INTKEY. The database should be applicable throughout the coastal lowlands of the Hudson Bay and James Bay regions as similar plant assemblages are present. The database, based upon morphological characteristics and also incorporating ecological information, was used to identify seed specimens found in soil cores and seed traps. The most useful characters for identifying seeds were seed length, seed width, and seed shape. The database is available on the World Wide Web at http://prod.library.utoronto.ca/polyclave/. The seed flora is also documented in the form of a checklist, the first one published for the La Pérouse Bay region; this checklist is also applicable to other coastal areas in the Hudson Bay lowlands.Key words: Arctic, DELTA, floristics, identification, seed morphology.

Detection and Mapping of RAPD Markers Associated with QTL Affecting Seed Size and Shape in Common Bean

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 547b-547
Author(s):  
Soon O. Park ◽  
Dermot P. Coyne ◽  
Geunhwa Jung ◽  
E. Arnaud-Santana ◽  
H. Ariyarathne
Keyword(s):  
Linkage Group ◽  
Common Bean ◽  
Seed Size ◽  
Phenotypic Variation ◽  
Seed Weight ◽  
Rapd Markers ◽  
Rapd Marker ◽  
Seed Shape ◽  
Seed Length ◽  
Ri Lines

Seed size is an important trait in common bean. The objective was to identify RAPD markers associated with QTL for seed weight, seed length, and seed height in a molecular marker-based linkage map in a recombinant inbred (RI) population from the common bean cross of the larger seeded (100 seed/39 to 47 g) PC-50 (ovate seed shape) × smaller seeded (100 seed/26 to 35 g) XAN-159 (flat rhomboidal seed shape). The parents and RI lines were grown in two separate greenhouse and two field (Wisconsin, Dominican Republic) experiments using a RCBD. Continuous distributions for seed weight, seed length, and seed height were observed for RI lines indicating quantitative inheritance. One to three QTLs affecting seed weight explained 17% to 41% of the phenotypic variation. Two to three QTLs for seed length explained 23% to 45% of the phenotypic variation. One to four QTL associated with seed height explained 17% to 39% of the phenotypic variation. A RAPD marker M5.850 in linkage group 3 was consistently associated with seed weight, seed length, and seed height in all experiments and explained 7% to 13% of the phenotypic variation for these traits. A seedcoat pattern morphological marker (C) in linkage group 1 was associated with seed weight and seed height in two greenhouse experiments.

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