RESPONSE OF PEA VEGETATIVE GROWTH TRAITS TO PLANTINGSPACES, SOWING DATE, AND GENOTYPES UNDER DIFFERENT LOCATIONS CONDITIONS

2019 ◽  
Vol 34 (11) ◽  
pp. 225-243
Keyword(s):  
Vegetative Growth ◽  
Growth Traits ◽  
Sowing Date

Response of two sunflower hybrids to planting dates and densities

2003 ◽  
Vol 51 (1) ◽  
pp. 25-35 ◽  
Author(s):  
A. Y. Allam ◽  
G. R. El-Nagar ◽  
A. H. Galal
Keyword(s):  
Seed Yield ◽  
Significant Influence ◽  
Plant Density ◽  
Growth Traits ◽  
Sowing Date ◽  
Planting Date ◽  
Oil Yield ◽  
Planting Density ◽  
Planting Dates ◽  
Head Diameter

This investigation was carried out at the Experimental Farm of Assiut University during the summers of 2000 and 2001 to study the responses of two sunflower hybrids (Vidoc and Euroflora) to planting dates (May 1st, June 1st and July 1st) and planting densities (55,533, 83,300 and 166,600 plants/ha). The results indicated that the two varieties differed highly significantly in all studied traits except oil yield/ha. The highest seed yield (3.64 t/ha) was obtained with the variety Vidoc. In addition, the results revealed that the planting date exerted a highly significant influence on all vegetative growth traits along with yield and its components. Increasing plant density increased the seed and oil yield/ha. By contrast, the stem diameter, head diameter, 100-seed weight and seed yield/plant decreased with increasing plant density. The interaction between varieties and plant density had a highly significant effect on head diameter. The greatest head diameter (20.06 cm) was recorded for the variety Vidoc planted at lower density. Concerning the interaction between planting density and planting date, the highest seed yield (4.47 t/ha) was obtained from dense plants at the early sowing date, and the highest oil % (45.32) at the late planting date and the lowest plant density. The second order interaction exerted a highly significant influence on stem and head diameter in addition to seed yield/plant, where the highest value (78.13 g/plant) was obtained with the variety Vidoc planted on May 1st at the lowest plant density.

scholarly journals Potential of Hyperspectral and Thermal Proximal Sensing for Estimating Growth Performance and Yield of Soybean Exposed to Different Drip Irrigation Regimes Under Arid Conditions

Sensors ◽  
2020 ◽  
Vol 20 (22) ◽  
pp. 6569 ◽  
Author(s):  
Adel H. Elmetwalli ◽  
Salah El-Hendawy ◽  
Nasser Al-Suhaibani ◽  
Majed Alotaibi ◽  
Muhammad Usman Tahir ◽  
...  
Keyword(s):  
Vegetative Growth ◽  
Growth Stage ◽  
Plant Traits ◽  
Growth Traits ◽  
Water Status ◽  
Accurate Estimation ◽  
Growth Stages ◽  
Irrigation Level ◽  
Arid Conditions ◽  
Irrigation Regimes

Proximal hyperspectral sensing tools could complement and perhaps replace destructive traditional methods for accurate estimation and monitoring of various morpho-physiological plant indicators. In this study, we assessed the potential of thermal imaging (TI) criteria and spectral reflectance indices (SRIs) to monitor different vegetative growth traits (biomass fresh weight, biomass dry weight, and canopy water mass) and seed yield (SY) of soybean exposed to 100%, 75%, and 50% of estimated crop evapotranspiration (ETc). These different plant traits were evaluated and related to TI criteria and SRIs at the beginning bloom (R1) and full seed (R6) growth stages. Results showed that all plant traits, TI criteria, and SRIs presented significant variations (p < 0.05) among irrigation regimes at both growth stages. The performance of TI criteria and SRIs for assessment of vegetative growth traits and SY fluctuated when relationships were analyzed for each irrigation regime or growth stage separately or when the data of both conditions were combined together. TI criteria and SRIs exhibited a moderate to strong relationship with vegetative growth traits when data from different irrigation regimes were pooled together at each growth stage or vice versa. The R6 and R1 growth stages are suitable for assessing SY under full (100% ETc) and severe (50% ETc) irrigation regimes, respectively, using SRIs. The overall results indicate that the usefulness of the TI and SRIs for assessment of growth, yield, and water status of soybean under arid conditions is limited to the growth stage, the irrigation level, and the combination between them.

scholarly journals Assessment of growth and productivity of five peanut cultivars and genetic diversity using RAPD markers

2019 ◽  
Vol 43 (1) ◽  
Author(s):  
Ghada M. Samaha ◽  
M. A. Ahmed ◽  
Asmaa R. Abd El-Hameid
Keyword(s):  
Genetic Diversity ◽  
Vegetative Growth ◽  
Rapd Markers ◽  
Seed Quality ◽  
Growth Traits ◽  
Block Design ◽  
Growth Yield ◽  
Yield Component ◽  
Peanut Cultivars ◽  
Yield Component Traits

Abstract Background This study was conducted to evaluate the genetic diversity of five peanut cultivars grown under field conditions. A field experiment was conducted using five peanut cultivars (Giza-5, Giza-6, Ismailia-1, Gregory, and R92) in a randomized complete block design with five replications during two following seasons to estimate the performance of five peanut cultivars for vegetative growth, yield, and yield component traits as well as seed quality traits. Twenty RAPD primers were used to identify a unique fingerprint for each of five cultivars. Results Giza-6 cultivar surpassed all the tested peanut cultivars in the most vegetative growth traits and yield and its components traits, while the lowest values were observed in Giza-5 cultivar. The dendrogram constructed from RAPD analysis showed that Gregory and Giza-5 were the most distant among five peanut cultivars. Conclusions RAPD markers are useful in the detection of genetic diversity of peanut. The availability of genetic diversity is important for the genetic improvement of peanut.

scholarly journals GENETIC VARIATION FOR VEGETATIVE TRAITS IN STRAWBERRIES GROWN AT DIFFERENT TEMPERATURES

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 600f-600
Author(s):  
Douglas V. Shaw
Keyword(s):  
Vegetative Growth ◽  
Low Temperatures ◽  
Genetic Basis ◽  
Genetic Variance ◽  
Growth Traits ◽  
Broad Sense Heritability ◽  
Vegetative Traits ◽  
Different Temperatures ◽  
Variance Parameters ◽  
Temperature Interactions

The extended production season of strawberries raised in mediterranean environments depends on plant development that occurs during the winter months. Seedling genotypes from 20 bi-parental crosses and their nine parent genotypes were fully vernalized and grown at 11, 14, and 17C, to test for adaptation to growth at minimal temperatures. Genetic variance parameters were estimated and tests for genetic x temperature interactions were conducted for five vegetative growth traits. Highly significant (P < 0.01) genetic effects were detected for all traits, and broad-sense heritability estimates ranged from 0.09 to 0.41. None of the genetic x temperature interactions were significant for seedling genotypes, and interactions were significant only for leaf dry weights for parental genotypes. These results indicate a genetic basis for variable vegetative growth rates, but provide no evidence for specific adaptation to growth at low temperatures.

scholarly journals Comparative analysis of seed size, germination, and vegetative allocation in annual and herbaceous perennial crops and their wild relatives in Lupinus and Phaseolus (Fabaceae)

2019 ◽  
Author(s):  
Sterling A. Herron ◽  
Matthew J. Rubin ◽  
Claudia Ciotir ◽  
Timothy E. Crews ◽  
David L. Van Tassel ◽  
...  
Keyword(s):  
Seed Size ◽  
Artificial Selection ◽  
Vegetative Growth ◽  
Growth Traits ◽  
Dry Mass ◽  
Growth Patterns ◽  
Perennial Species ◽  
Node Number ◽  
Perennial Legumes ◽  
Herbaceous Perennial

ABSTRACTHerbaceous perennial species are receiving increased attention for their potential to provide both edible products and ecosystem services in agricultural systems. Many legumes (Fabaceae Lindl.) are of special interest due to nitrogen fixation carried out by bacteria in their roots and their production of protein-rich, edible seeds. However, herbaceous perennial legumes have yet to enter widespread use as pulse crops, and the response of wild, herbaceous, perennial species to artificial selection for increased seed yield remains under investigation. Here we compare cultivated and wild accessions of congeneric annual and herbaceous perennial legume species to investigate associations of lifespan and cultivation with seed size, germination, and first year vegetative growth patterns, and to characterize covariation among traits. We use “cultivated” to describe accessions with a history of human planting and use, which encompasses a continuum of domestication. Analyses focused on three annual and eight perennial Lupinus species, and three annual and four perennial Phaseolus species. We found a significant association of both lifespan and cultivation status with seed size (weight, area, length), germination proportion, node number, stem diameter, shoot dry mass, and root dry mass. Wild seed size was greater in annuals for Lupinus and greater for perennials in Phaseolus. Germination was lower in wild perennials than wild annuals in both genera, and vegetative allocation was roughly equivalent across lifespans in wild Phaseolus. Relative to wild forms, both cultivated annual and cultivated perennial accessions exhibited greater seed size, lower germination proportion, and larger overall plant size. Seed size traits were positively correlated with vegetative growth traits, and all biomass traits examined here were positively correlated. This study highlights some basic similarities and differences between annual and herbaceous perennial legumes, and provides insights into how perennial legumes might respond to artificial selection compared to annual species.

scholarly journals Identification of Quantitative Trait Loci Determining Vegetative Growth Traits in Coffea canephor

2011 ◽  
Vol 27 (3) ◽  
Author(s):  
Priyono Priyono ◽  
Ucu Sumirat ◽  
Crouzillat Crouzillat
Keyword(s):  
Quantitative Trait Loci ◽  
Quantitative Trait ◽  
Vegetative Growth ◽  
Growth Traits ◽  
Coffea Canephora ◽  
Tree Canopy ◽  
Genetic Maps ◽  
Phenotypic Trait ◽  
Trait Loci ◽  
Vegetative Traits

Recently the use of molecular markers has been successfully applied for some crops. For coffee, new opportunities have been opened since Nestlé R&D Centre in collaboration with ICCRI completed the first genetic map of Coffea canephora. This study was aimed both to evaluate the phenotypic trait and also to identify the quantitative trait loci (QTLs) controlling the vegetative growth in Robusta coffee. Present study used three C. canephora populations and six genetic maps developed based on these populations using simple sequence repeats (SSRs) and single nucleotide polymorphisms (SNPs) markers. A total of 17 different quantitative data were used for the detection of QTLs on each of three populations. Present result showed that most of these traits were not heritable. The nine vegetative traits have been identified and distributed over seven different linkage groups. Due to some QTLs determining one given trait were overlapping on the same linkage group and were coming from the same favourable parent, a total of 19 QTLs detected for vegetative traits might finally be considered as only 12 QTLs involved. However, only two of them were shared for different traits. One involved for the number/length of primary branches and width of the canopy while the other for length of internodes and width of canopy. These two QTLs might determine the size of the tree canopy in this species. Key words: Coffea canephora, heridity, quantitative trait loci (QTLs), vegetative growth.

scholarly journals Effect of The Combined Application of Organic and Mineral Fertilizers on The Growth and Yield of Broccoli (Brassica Oleracea Var.Italica)

2021 ◽  
Vol 910 (1) ◽  
pp. 012115
Author(s):  
Hussien J.M. Al-Bayati ◽  
Waleed B.A.M. Allela ◽  
Nagham Salah Salim ◽  
Fathel F. R. Ibraheem
Keyword(s):  
Vegetative Growth ◽  
Growth Traits ◽  
Block Design ◽  
Growth And Yield ◽  
Control Treatment ◽  
Mineral Fertilizers ◽  
Combined Application ◽  
Compound Fertilizer ◽  
Organic And Mineral Fertilizers ◽  
Chemical Fertilization

Abstract The experiment was carried out in the vegetable field of the Department of Horticulture and Landscape during the winter agricultural season 2019-2020. The study aimed to investigate the effects of organic fertilization (Tecamine Max) at a concentration of 4 ml.L-1 and chemical fertilization with compound fertilizer N25P5K10 at average of 400 kg.ha-1 and a mixture of the two mentioned fertilizers in different levels. In addition to examine the comparison treatment in the vegetative growth and yield of broccoli. The study included 6 treatments implemented in the field using Randomized Complete Block Design RCBD with three replications. The results showed that all fertilizing treatments achieved the significant differences compare to control treatment in all studied vegetative growth traits. In general, combination of 100 kg chemical fertilization. ha-1 + 7 ml.L-1 of organic extract (Tecamine Max) showed the best values in both of head weight and the heads yield (459.72 g.plant-1 and 28,732 t. ha-1) respectively.

scholarly journals Heritability and combining ability of vegetative growth and phenological development of diallel crosses of rapeseed

Genetika ◽  
2017 ◽  
Vol 49 (1) ◽  
pp. 117-126
Author(s):  
Hafsa Naheed ◽  
R Raziuddin ◽  
Sana Abid ◽  
Quahir Sohail ◽  
Ghulam Hassan ◽  
...  
Keyword(s):  
Plant Height ◽  
Combining Ability ◽  
Vegetative Growth ◽  
Growth Traits ◽  
Main Stem ◽  
Flowering Plant ◽  
Stem Length ◽  
Diallel Crosses ◽  
Physiological Maturity ◽  
Days To Flowering

To estimate combining ability and heritability of F2 populations of 4 x 4 full diallel crosses and parents, an experiment was carried out at The University of Agriculture, during 2012-2013. Four parental lines and F2 populations of six direct and six reciprocal crosses were planted in the experiment using RCB design. Data were recorded on phenological and vegetative growth traits: Days to flowering, plant height, main stem length, main raceme length, primary branches, and days to maturity. Analysis of variance revealed significant variation among genotypes for all the parameters studied. The results of combining ability analysis showed that general combining ability (GCA) was highly significant for primary branches plant-1, significant for plant height and days to physiological maturity and non-significant for the remaining traits. Specific combining ability (SCA) and reciprocal effects (RE) were significant for plant height, days to flowering, main raceme length and days to physiological maturity. Genotype AUP-401 was best general combiner for main raceme length, primary branches plant-1 and days to physiological maturity. Among the crosses, AUP-404 x AUP-402 was best specific combiner for plant height, days to flowering and main stem length. Broad sense heritability was high (>70%) for plant height, main stem length and primary branches. Moderate heritability was observed for main raceme length, days to 50% flowering and days to physiological maturity. The variance components of SCA were greater than respective GCA components of all the characters signifying the presence of non- additive genetic effects in transfer of these traits and selection in the later generations should be practiced for improvement of these traits.

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