Evaluation of the germ plasm collection of safflower Carthamus tinctorius L. VI. Length of planting to flowering period and plant height in Israel, Utah and Washington

1975 ◽  
Vol 46 (7) ◽  
pp. 359-364 ◽  
Author(s):  
A. Ashri ◽  
D. E. Zimmer ◽  
A. L. Urie ◽  
P. F. Knowles
2021 ◽  
Author(s):  
Карина Мустяцэ ◽  
◽  
Нина Чавдарь ◽  
Александр Рущук ◽  
Ольга Загородняя ◽  
...  

In the plant breeding of Carthamus tinctorius L. the method of individual breeding was used. Analysis of the breeding efficiency by a complex of characteristics of Carthamus tinctorius L. on average for three years showed an increase in the studied features. An increase in a breeding effect from a larger to a smaller value (in percents to the average value in the initial population) was observed in the following sequence: weight of seeds per plant, g (86,4%), quantity of seeds per plant, pcs (48,6%), quantity of inflorescences with seeds, pcs (42,7%), quantity of seeds in one basket inflorescence, pcs (38,7%), weight of 1000 seeds, g (28,5%), quantity of branches of the first level, pcs (27,2%), weight of seeds from one basket inflorescence, g (22,5%), total quantity of inflorescences per plant, pcs (17,8%), plant height, cm (15,4%).


2019 ◽  
Vol 72 (4) ◽  
Author(s):  
Sayed Mohammad Taghi Tabib Loghmani ◽  
Forood Bazrafshan ◽  
Omid Alizadeh ◽  
Bahram Amiri ◽  
Abdollah Bahrani

Safflower (<em>Carthamus tinctorius</em> L.) is an oilseed crop adapted to arid and semiarid regions. In this study, an experiment was performed to evaluate the effects of water deficiency on plant height, 1,000-grain weight, seed yield, harvest index, relative water content (RWC), oil yield, and oil content in 15 safflower genotypes. A split-plot randomized complete blocks design was arranged with three replications. Safflower plants were grown under normal irrigation and water deficit conditions in Sarvestan, Fars Province, Iran during 2016 and 2017 growing seasons. Combined analysis results indicated that water deficit stress had negative effects on all measured indices. Average seed yield declined by 65.91% (2,337.91 to 796.79 kg ha<sup>−1</sup>) due to water deficit stress. Genotype also had a significant effect on evaluated indices, and the interaction between genotype and irrigation significantly influenced all indices except plant height. Under both conditions, highest RWC, seed yield, and oil yield were observed in Dincer and PI-537598 genotypes. Maximum plant height and 1,000-seed weight in both irrigation conditions were observed in the Dincer genotype. In the normal irrigation condition, maximum harvest index and oil content were observed in the CW-74 genotype. Thus, Dincer and PI-537598 were classified as the best genotypes (based on seed yield, RWC, and oil yield) under both normal irrigation and water deficit stress conditions.


1969 ◽  
Vol 44 (1) ◽  
pp. 21-27
Author(s):  
Raúl Abrams

Seed of the commercial pigeonpea varieties Kaki, Saragateado, and Florido were soaked overnight in solutions of gibberellic acid containing 0, 20, 30, 40, and 50 p.p.m., in order to determine the effect of the acid on plant height, flowering period, and yield of this crop. The following results were obtained: 1. There were no significant differences in plant height between the three commercial varieties that could be attributed to the gibberellic acid treatments. 2. Varieties differed in their flowering periods, but this could not be attributed to the gibberellic acid treatments, as such differences are of genetic origin. 3. Gibberellic acid had no effect on the yield of green peas.


2014 ◽  
Vol 32 (1) ◽  
pp. 13-18
Author(s):  
Gary J. Keever ◽  
J. Raymond Kessler ◽  
James C. Stephenson

Staggered starting dates for night-interrupted lighting (NIL) were evaluated for accelerated sequential flowering of herbaceous perennials with different photoperiod requirements outdoors in a southern nursery setting. Plants evaluated were black-eyed Susan (Rudbeckia fulgida ‘Goldsturm’), an obligate long-day (LD) plant; obedient plant (Physostegia virginiana ‘Miss Manners’), a facultative LD plant; and Stokes' aster (Stokesia laevis ‘Peachie's Pick’), a facultative intermediate-day plant. With all species, the dates of first flower and maximum flower number occurred sooner under LDs from incandescent (INC) and fluorescent (FLU) lamps than under natural photoperiod (NP). Mean and maximum flower numbers were greater under NIL than under NP for black-eyed Susan and Stokes' aster but not for obedient plant. Time in flower increased in Stokes' aster, but either decreased or was not affected by NIL for black-eyed Susan and obedient plant. Flowering periods of black-eyed Susan and obedient plant exposed to different NIL timings overlapped extensively while leaving a gap in flowering between plants exposed to NIL and those under NP. This gap in flowering suggests that the intervals between NIL start dates could be longer to lessen the flowering overlap of plants under NIL, and that the interval between the start of the last NIL treatment and the onset of an inductive photoperiod be reduced to maintain sequential peak flowering until the natural flowering period. With Stokes' aster, flowering overlapped for plants in the different NIL timings and under NP, resulting in continuous sequential blooms from first flowering of plants under NIL until the plants' natural flowering period under NP in late May. Flowering periods of Stokes' aster exposed to NIL beginning on different dates overlapped extensively, suggesting that at least one NIL start date could be omitted and the intervals between the start of NIL increased without sacrificing continuous sequential peak flowering. NIL from INC and FLU lamps promoted growth in plant height compared to that of plants under NP, although the increase in plant height was less under FLU lamps.


Author(s):  
Gérsia Gonçalves De Melo ◽  
Djayran Sobral Costa ◽  
Vivian Loges ◽  
Simone Santos Lira Silva ◽  
Demerson Arruda Sanglard ◽  
...  

Aims: To evaluate the ornamental potential of two safflower genotypes (Carthamus tinctorius L.): ICA 73, ICA 193, grown under protected environment. Place and Duration of Study: Department of Agronomy of Federal Rural University of Pernambuco, between March and May 2017. Methodology: The methodology addressed evaluated the performance of the two genotypes, through three experiments. The first experiment was carried out in a completely randomized design, being evaluated: plant height; stem diameter; leaf dentin; spinescent margin of the leaves; number of branches; number of flower buds; spinescent margin of the bracts; flowering, and flower production. The second one was conducted in a randomized complete block design in a factorial scheme, and the following variables were evaluated: plant height; stem diameter; number of branches; number of flower buds; and flower production. Finally, the third experiment used a completely randomized design in a factorial scheme and evaluated the variables: Number of flowers; number of flower buds and post-harvest durability. The analysis of variance was performed using the F test at 5% of probability and, afterwards, the regression or comparison analysis of averages by the Tukey test at 5% of probability. Results: The ICA 73 access showed plants with high flower production and the ICA 193 exhibited plants with weak or moderate spinescent margin of the leaves and bracts, besides good uniformity of the anthesis of the flowers. Conclusion: Both accesses showed ornamental potential, demonstrating precocity, beauty and durability of the flowers. The density of one plant was the most favorable for pot plant and cut flower. The semi-open flowers harvest point was the best for maintaining the stem quality.


2019 ◽  
Vol 7 (2) ◽  
pp. 146
Author(s):  
Syariani Br. Tambunan ◽  
Afkar Afkar

This study aims to determine the growth of various soybean varieties on Ultisol soil, especially on Ultisol soils in Kutacane. The study was conducted in Gulo Village, Darul Hasanah District, Southeast Aceh Regency, Aceh Province with hilly topography, from May to September 2019 at an altitude of 3200 asl. The study used a Non Factorial Randomized Block Design (RBD), with 4 treatment varieties (V) repeated in 4 replications with 63 plants per plot with 7 samples per plot. The plot size  is 3 m x 2 m with 30 x 20 cm spacing. The total number of plants was 1008, while the total number of sample plants was 112 plants. There are 4 soybean varieties: (V1) Anjasmoro, (V2) Dena1, (V3) Deja 1, and  (V4) Detap 1. The parameters observed in this study during vegetative period include plant height at 1, 2, 3, 4, 5, and 6 week after planting. The plant height were measured from the base of the stem to the highest leaf. The result is that each variety has a different response to the environment so that the growth, flowering period, and harvest period are also different on Ultisol soil especially in District of Southeast Aceh.


2021 ◽  
Vol 6 (3) ◽  
pp. 140
Author(s):  
Nurul Annisa ◽  
Aziz Purwantoro ◽  
Dyah Weny Respatie

Zinnia elegans Jacq. is one of the ornamental plants potential to be used as a potted ornamental plants. The problem to be resolved is the size of the plant can reach 1 m, so it is necessary to modify the plant height into 20 cm to 25 cm using retardant (plant growth regulator), called daminozide. The purpose of this study was to determine the best concentration and soaking time using daminozide to inhibit the growth of zinnia. The research was conducted at Mangkuyudan 57, Yogyakarta. This research was arranged in a factorial design with 3 blocks as replication. Different concentrations of daminozide were used as first factor with three levels (1 g.L-1, 2 g.L-1, and 3 g.L-1) and soaking times were used as the second factor (12 h, 24 h, and 36 h). The data were analyzed using analysis of variance and continued with HSD-Tukey at the α = 5 %. The results showed that there were an interaction between daminozide concentration and soaking time in the height of Z. elegans. There were also positive correlation between plant height, number of flower, and flowering period. The best combination of daminozide concentration and soaking times were 2 g.L-1 and 12 h. This treatment gave the best height that fit to the criteria of a potted plant which was 20.08 cm. However, it reduced flower’s diameter, number of flowers, and canopy’s size.


Irriga ◽  
2018 ◽  
Vol 23 (3) ◽  
pp. 493-504
Author(s):  
REGINALDO FERREIRA SANTOS ◽  
DOGLAS BASSEGIO ◽  
MARCELO ALMEIDA SILVA ◽  
ANTONIO EVALDO KLAR ◽  
ANDREIA APARECIDA FERREIRA DA SILVA ◽  
...  

This study was conducted in order to determinate the effect of irrigation regime imposed on development stages over growth components of safflower plants (Carthamus tinctorius L.) in autumn seeding in Engenheiro Coelho, SP, Brazil. The field test was accomplished at Red-Yellow Argisoil, typically fertile sandy texture type B, a completely randomized design with eight irrigation regimes and three replications. The irrigation regimes consisted of: non-irrigation (dry farming), irrigation at vegetative stage (V), irrigation at flowering stage (F), irrigation in the grain formation stage (G), irrigation in vegetative and flowering (VF), irrigation in vegetative and grain formation (VG), irrigation at flowering and grain formation (FG) and irrigation in vegetative, flowering and grain formation (VFG) (control). The study result shows that safflower is benefited by irrigation in vegetative period; however, irrigation is also effective when applied during flowering period on treatment that was under dry farming. The water shortage due to the irrigation restriction during the vegetative stage reduces morphological components of safflower growth. The grain and oil yield is affected by water restriction in all safflower cultivation stages. Treatment with water availability throughout the vegetative and flowering period produced 895 kg ha–1 of grain yield.


Sign in / Sign up

Export Citation Format

Share Document