scholarly journals RELATIONSHIPS BETWEEN THE SEED YIELD AND SOME AGRONOMIC CHARACTERISTICS OF SAFFLOWER (Carthamus tinctorius L.) UNDER SEMI-ARID CONDITIONS

2015 ◽  
Vol 21 (1) ◽  
pp. 29 ◽  
Author(s):  
Zeynep SIREL ◽  
Zehra AYTAC
Keyword(s):  
Seed Yield ◽  
Carthamus Tinctorius ◽  
Agronomic Characteristics ◽  
Arid Conditions ◽  
Semi Arid

scholarly journals Impact of Plant Density and Mepiquat Chloride on Growth, Yield, and Silymarin Content of Silybum marianum Grown under Mediterranean Semi-Arid Conditions

Agronomy ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 669 ◽  
Author(s):  
Arampatzis ◽  
Karkanis ◽  
Tsiropoulos
Keyword(s):  
Seed Yield ◽  
Plant Density ◽  
Plant Biomass ◽  
Crop Growth ◽  
Milk Thistle ◽  
Silybum Marianum ◽  
Mepiquat Chloride ◽  
Arid Conditions ◽  
The Impact ◽  
Semi Arid

Milk thistle (Silybum marianum (L.) Gaertn.) is a promising new crop in the Mediterranean region. Its seeds contain silymarin, a complex of flavonolignans, which is widely used in the pharmaceutical industry, mainly to produce dietary supplements. To meet the increasing demand for milk thistle, the production and productivity of milk thistle should also be optimized by employing adequate cultivation practices. In the present study, a two-year field experiment was conducted to assess the effects of plant density and a plant growth regulator on milk thistle crop growth, seed yield, and silymarin accumulation under Mediterranean semi-arid conditions. Our results showed that plant density had a significant impact on milk thistle crop growth and seed yield. The main crop characteristics, such as height, aboveground biomass, and seed yield were greatest when plant density was the highest. Increased plant density significantly reduced the silymarin content only in 2018. In contrast, mepiquat chloride (MC) treatment did not affect the following traits: plant biomass, relative chlorophyll content, silymarin content, and production. Nevertheless, mepiquat chloride reduced the plant height by 7.9%–14.8%, depending on the application rates and growth conditions. Moreover, the impact of climatic conditions on milk thistle production and quality was significant, since the lowest values of silymarin content and seed yield were recorded in the year with drought conditions during the period from March to May.

scholarly journals Differential physio-biochemical and yield responses of Camelina sativa L. under varying irrigation water regimes in semi-arid climatic conditions

PLoS ONE ◽  
2020 ◽  
Vol 15 (12) ◽  
pp. e0242441
Author(s):  
Zeeshan Ahmed ◽  
Junhe Liu ◽  
Ejaz Ahmad Waraich ◽  
Yan Yan ◽  
Zhiming Qi ◽  
...  
Keyword(s):  
Seed Yield ◽  
Camelina Sativa ◽  
Yield Potential ◽  
Growth Stages ◽  
Oilseed Crop ◽  
Biochemical Activity ◽  
Yield Attributes ◽  
Arid Conditions ◽  
Yield Responses ◽  
Semi Arid

Camelina sativa L. is an oilseed crop with wide nutritional and industrial applications. Because of favorable agronomic characteristics of C. sativa in a water-limiting environment interest in its production has increased worldwide. In this study the effect of different irrigation regimes (I0 = three irrigations, I1 = two irrigations, I2 = one irrigation and I3 = one irrigation) on physio-biochemical responses and seed yield attributes of two C. sativa genotypes was explored under semi-arid conditions. Results indicated that maximum physio-biochemical activity, seed yield and oil contents appeared in genotype 7126 with three irrigations (I0). In contrast water deficit stress created by withholding irrigation (I1, I2 and I3) at different growth stages significantly reduced the physio-biochemical activity as well as yield responses in both C. sativa genotypes. Nonetheless the highest reduction in physio-biochemical and yield attributes were observed in genotype 8046 when irrigation was skipped at vegetative and flowering stages of crop (I3). In genotypic comparison, C. sativa genotype 7126 performed better than 8046 under all I1, I2 and I3 irrigation treatments. Because 7126 exhibited better maintenance of tissue water content, leaf gas exchange traits and chlorophyll pigment production, resulting in better seed yield and oil production. Findings of this study suggest that to achieve maximum yield potential in camelina three irrigations are needed under semi-arid conditions, however application of two irrigations one at flowering and second at silique development stage can ensure an economic seed yield and oil contents. Furthermore, genotype 7126 should be adopted for cultivation under water limited arid and semi-arid regions due to its better adaptability.

Evapotranspiration, crop coefficient and seed yield of drip irrigated pumpkin under semi-arid conditions

2015 ◽  
Vol 197 ◽  
pp. 33-40 ◽  
Author(s):  
Duran Yavuz ◽  
Nurcan Yavuz ◽  
Musa Seymen ◽  
Önder Türkmen
Keyword(s):  
Seed Yield ◽  
Crop Coefficient ◽  
Arid Conditions ◽  
Semi Arid

Evaluation of yield of safflower (Carthamus tinctorius L.) genotypes under semi-arid conditions

2020 ◽  
Vol 18 (4) ◽  
pp. 270-277
Author(s):  
Seyed Mojtaba Mousavi Ojaq ◽  
Hamid Mozafari ◽  
Hamid Jabbari ◽  
Behzad Sani
Keyword(s):  
Grain Yield ◽  
Flower Colour ◽  
Principal Component ◽  
Carthamus Tinctorius ◽  
Grain Weight ◽  
Arid Conditions ◽  
Flowering Initiation ◽  
1000 Grain Weight ◽  
Semi Arid ◽  
Selection Of

AbstractTo identify appropriate genotypes for breeding varieties suitable for semi-arid areas, yield components, as well as morphophonological traits of 127 safflower genotypes, were assessed at the Seed and Plant Improvement Institute, Iran. Cluster analysis revealed four distinct groups. The largest group (third cluster) includes 48 genotypes with characteristics such as mostly yellow-coloured flowers, mostly thorny with few thistle genotypes, relatively early-flowering, relatively high number of heads and grains per plant, highest 1000-grain weight with the highest grain yields. In contrast, the smallest group (second cluster) contains 13 genotypes with characteristics such as yellow florets, semi-dwarf, thorny, moderately late-flowering, low number of heads per plant and number of grains per head, low 1000-grain weight, and low grain yield. Principal component analysis results showed that the three components accounted for 29.5, 15.9 and 11.1% of the total variation, respectively. Graphic representation of the biplots based on the first and second principal components showed that the experimental genotypes were classified into four groups. The results also indicated that stem diameter, the number of branches, heads per plant and grains per head had the highest correlation with the first component, and grain yield, flower colour, flowering initiation and plant height had the highest correlation with the second component. These traits can be considered as an appropriate index for the selection of elite safflower genotypes for breeding varieties suited to cultivation in semi-arid conditions.

scholarly journals Adaptability and stability parameters of total seed yield and protein content in cowpea (Vigna unguiculata) genotypes subjected to semi-arid conditions

2016 ◽  
Vol 10 (8) ◽  
pp. 1164-1169 ◽  
Author(s):  
Danillo Olegario Matos da Silva ◽  
◽  
Carlos Antonio Fernandes Santos ◽  
Leonardo Silva Boiteux ◽  
◽  
...  
Keyword(s):  
Protein Content ◽  
Seed Yield ◽  
Vigna Unguiculata ◽  
Stability Parameters ◽  
Arid Conditions ◽  
Total Seed ◽  
Semi Arid

Triazine carryover in semi-arid conditions

1990 ◽  
Vol 9 (6) ◽  
pp. 429-432 ◽  
Author(s):  
O.A. Chivinge ◽  
B. Mpofu
Keyword(s):  
Arid Conditions ◽  
Semi Arid

Genetic parameters of Barki sheep raised under semi-arid conditions

1969 ◽  
Vol 11 (3) ◽  
pp. 361-367 ◽  
Author(s):  
M. H. Fahmy ◽  
E. Salah E. Galal ◽  
Y. S. Ghanem ◽  
S. S. Khishin
Keyword(s):  
Genetic Parameters ◽  
Genetic Correlations ◽  
Research Station ◽  
Phenotypic Correlations ◽  
Arid Conditions ◽  
Body Weights ◽  
Genetic And Phenotypic Correlations ◽  
Fleece Weight ◽  
Semi Arid ◽  
Desert Research

SUMMARYRecords on 695 lambs were collected over a period of 5 years from 1961/62 to 1965/66, at Ras El-Hekma Desert Research Station, 230 km west of Alexandria. The characters studied were birth, weaning and yearling body weights, pre- and post-weaning daily gains and greasy fleece weight.Birth, 120-day and 365-day body weights were 3·4, 18·2 and 33·4 kg respectively. Greasy fleece weight at 16 months of age was 3·29 kg. Heritability estimates of birth, weaning, yearling weights, pre- and post-weaning daily gains and greasy fleece weight were 0·22, 0·45, 0·41,0·45 and 0·29 respectively. Genetic and phenotypic correlations between birth, weaning and yearling weights were all positive and significant. Genetic correlations between fleece weight and body characteristics were negative and low.

Sign in / Sign up

Export Citation Format

Share Document