The effect of temperature on seed set and embryo development in reciprocal crosses of wheat and barley

Euphytica ◽  
1994 ◽  
Vol 78 (1-2) ◽  
pp. 53-58 ◽  
Author(s):  
Márta Molnár-Láng ◽  
József Sutka
Keyword(s):  
Embryo Development ◽  
Seed Set ◽  
Effect Of Temperature ◽  
Reciprocal Crosses

The effect of temperature during liquid storage of in vitro–matured bovine oocytes on subsequent embryo development

2016 ◽  
Vol 85 (3) ◽  
pp. 509-518.e1 ◽  
Author(s):  
Tayita Suttirojpattana ◽  
Tamas Somfai ◽  
Satoko Matoba ◽  
Takashi Nagai ◽  
Rangsun Parnpai ◽  
...  
Keyword(s):  
Embryo Development ◽  
Effect Of Temperature ◽  
Liquid Storage ◽  
Bovine Oocytes

Effect of temperature on embryo development time and hatching success of the Antarctic krillEuphausia superbaDana in the laboratory

2004 ◽  
Vol 37 (2) ◽  
pp. 137-145 ◽  
Author(s):  
Toshihiro Yoshida ◽  
Tatsuki Toda ◽  
Yasuo Hirano ◽  
Tsuyoshi Matsuda ◽  
So Kawaguchi
Keyword(s):  
Embryo Development ◽  
Development Time ◽  
Hatching Success ◽  
Effect Of Temperature ◽  
The Antarctic

Embryo Development and Seed Set in Crosses for Triploid Day Lilies

1973 ◽  
Vol 134 (2) ◽  
pp. 135-139 ◽  
Author(s):  
Toru Arisumi
Keyword(s):  
Embryo Development ◽  
Seed Set

The effect of temperature on fruit set, seed set and seed germination in ‘Sonia’ × ‘Hadley’ hybrid Tea-rose crosses

Euphytica ◽  
1987 ◽  
Vol 36 (1) ◽  
pp. 117-120 ◽  
Author(s):  
D. P. De Vries ◽  
Lidwien A. M. Dubois
Keyword(s):  
Seed Germination ◽  
Fruit Set ◽  
Seed Set ◽  
Effect Of Temperature

The effect of temperature on the hardseed content of some annual legumes grown on the northern slopes of New South Wales

1990 ◽  
Vol 41 (5) ◽  
pp. 941 ◽  
Author(s):  
GM Lodge ◽  
RD Murison ◽  
EW Heap
Keyword(s):  
Seed Set ◽  
New South ◽  
Trifolium Subterraneum ◽  
Summer Rainfall ◽  
Effect Of Temperature ◽  
South Wales ◽  
Low Levels ◽  
Fluctuating Temperatures ◽  
Over Time ◽  
Better Than

Two laboratory experiments were conducted to assess the effects of constant and fluctuating temperatures on the hardseed content of a range of legume species. In the first experiment the effects of constant (10/10,25/25,40/40�C) and fluctuating temperatures (40/10,40/25�C) on the rate of breakdown of the hardseed of 15 legumes was examined over a 12-month period. The second experiment investigated the hardseed level of seven of these legumes stored at temperatures of 25/25,40/25,60/25�C over 11 months. A method of analysing these data is presented which describes the hardseed profile over time and allows the rates of change to be compared. For seed collected in a summer rainfall environment fluctuating temperatures of 40/10�C significantly reduced the hardseed level of Medicago aculeata Willd. and M. scutellata (L.) Mill, cv. Sava, Trifolium subterraneum ssp. subterraneum Katzn. et Morley cv. Woogenellup and T. subterraneum ssp brachycalycinum Katzn. Et Morley cv. Clare. A 40/25�C regime reduced the hardseededness of M. minima (L.) Bart, M, aculeata, M. truncatula Gaertn. cv. Sephi, T. subterraneum ssp, subterraneum Katzn. et Morley cvv. Nungarin and Woogenellup and cv. Clare. At 60/25�C the hardseed level of all legumes declined over time. Further at 60/25�C hardseed contents declined at a significantly faster rate than for those at 40/25�C. Field observations of the number of seedlings emerging in the summer after seed set followed a similar pattern to that expected from the laboratory studies. From these studies it is proposed that, provided their seed set is adequate, cultivars with comparatively low levels of hardseed may perform better than expected when grown in a summer rainfall environment, particularly when they are either grown in association with native grasses or have a high proportion of buried burrs. Under these conditions temperatures of around 40/25�C could be expected.

Using a polyploid meiosis stability (PMeS) line as a parent improves embryo development and the seed set rate of a tetraploid rice hybrid

2011 ◽  
Vol 91 (2) ◽  
pp. 325-335 ◽  
Author(s):  
Y.-C. He ◽  
J. Ge ◽  
Q. Wei ◽  
A.-M. Jiang ◽  
L. Gan ◽  
...  
Keyword(s):  
Embryo Development ◽  
Seed Set ◽  
Endosperm Development ◽  
Development Pattern ◽  
Rice Breeding ◽  
High Pollen ◽  
Rice Hybrid ◽  
Normal Meiosis ◽  
Tetraploid Line ◽  
Seed Set Rate

He, Y.-C., Ge, J., Wei, Q., Jiang, A.-M., Gan, L., Song, Z.-J. and Cai, D.-T. 2011 Using a polyploid meiosis stability (PMeS) line as a parent improves embryo development and the seed set rate of a tetraploid rice hybrid. Can. J. Plant Sci. 91: 325–335. Polyploidy is widely accepted to play an important role in the evolution and breeding of plant species. However, a low seed set rate significantly hindered the development of polyploid rice breeding. Our results show that the seed set rate in polyploid meiosis stability (PMeS) line HN2026-4X was above 80%, but less than 40% in the other two tetraploid lines (4X indicates a tetraploid line and 2X indicates a diploid line). Furthermore, the seed set rate of Balilla-4X×HN2026-4X was also higher (67.18%) compared with that of Balilla-4X×NJ11-4X (37.26%), suggesting that the PMeS trait was transmitted to the next generation. The significantly higher seed set rate was attributed to the high pollen fertility and viability, as well as the normal meiosis of the HN2026-4X line as a male parent and also to successful embryogenesis. Investigations into embryo microstructure suggested that the embryo development pattern in Balilla-4X×HN2026-4X appeared normal at all stages, but many changes were discovered in Balilla-4X×NJ11-4X. The embryos were mainly defective at the four following stages: 1 d after pollination (DAP), 2–3 DAP, 4-5 DAP, and 10-15 DAP. The pattern of embryo developmental failure was similar in the two hybrids, but the abortive frequency in Balilla-4X×HN2026-4X was significantly lower than that of Balilla-4X×NJ11-4X at the respective stages. Additionally, aberrant fertilization, poor endosperm development, and abnormal embryo polarization also contributed to the low seed set in the hybrid of Balilla-4X×NJ11-4X. This study suggests that the PMeS line is a valuable resource, which could be used to develop tetraploid rice hybrids with superior yield.

scholarly journals Effect of Temperature Differences on Embryo Development and Hatching of Sea Bass Eggs (Lates calcarifer)

2021 ◽  
Vol 8 (1) ◽  
pp. 18
Author(s):  
Mandalica Simanjuntak ◽  
Rosmaiti Rosmaiti ◽  
Andika Putriningtias
Keyword(s):  
Embryo Development ◽  
Sea Bass ◽  
Effect Of Temperature ◽  
Lates Calcarifer

Suhu faktor lingkungan yang dapat mempengaruhi kematian ikan bass pada fase embrio, karena embrio paling rentan terhadap perubahan stres karena embrio masih sensitif. Tujuannya adalah untuk melihat suhu yang optimal dan apakah perbedaan suhu dapat menyebabkan perubahan yang signifikan pada perkembangan embrio, kecepatan tetas, kecepatan tetas dan kelainan pada larva ikan bass. Metode yang digunakan adalah RAL dengan 4 perlakuan dan 3 ulangan yaitu S1 = 26 oC, S2 = 28 oC, S3 = 30 oC, dan S4 = 32 oC. Uji LSD 95% menunjukkan perkembangan embrio pada S4 (32 oC ) .C) menunjukkan tercepat di semua tahap perkembangan embrio, penetrasi tercepat ada di S4 (32 oC) selama 656,6 menit, penetrasi tertinggi pada S2 (28 oC) sebesar 95.258%, kelainan permanen terendah pada S1 (26 o C) sebesar 0%. Hasil penelitian menunjukkan bahwa perbedaan suhu media inkubasi memberikan pengaruh yang sangat nyata terhadap perkembangan embrio, kecepatan tetas, dan kelainan larva bass laut ( Lates calcarifer ).

Embryo development in reciprocal crosses of Phaseolus vulgaris L. and P. coccineus Lam.

1982 ◽  
Vol 62 (1) ◽  
pp. 59-64 ◽  
Author(s):  
C. T. Shii ◽  
A. Rabakoarihanta ◽  
M. C. Mok ◽  
D. W. S. Mok
Keyword(s):  
Phaseolus Vulgaris ◽  
Embryo Development ◽  
Phaseolus Vulgaris L ◽  
Reciprocal Crosses

ATTEMPTED GENE TRANSFER FROM TETRAPLOIDS TO DIPLOIDS IN TRITICUM

1981 ◽  
Vol 23 (4) ◽  
pp. 639-645 ◽  
Author(s):  
H. C. Sharma ◽  
J. G. Waines
Keyword(s):  
Gene Transfer ◽  
Chromosome Number ◽  
Seed Development ◽  
Seed Set ◽  
Triticum Turgidum ◽  
Seed Viability ◽  
Unreduced Gametes ◽  
Reciprocal Crosses ◽  
Advanced Backcross ◽  
Selection For

The possibility of introgression from tetraploid (2n = 28) AABB to diploid (2n = 14) AA wheats was investigated. Reciprocal crosses were made between tetraploid Triticum turgidum L. var. durum Desf. and diploids T. monococcum L. var. boeoticum Boiss., or T. urartu Tum.; and between T. turgidum var. carthlicum Nevski and T. monococcum L., or boeoticum, or urartu. The triploid F1 hybrids were backcrossed to diploid parents. All backcross derivatives were lethal at BC1 or BC2 except those of durum × boeoticum which were carried to BC4. However, neither fertile plants nor plants with the diploid chromosome number were obtained up to BC4 generation. As backcross generations advanced, backcross seed set, seed development, seed viability and plant vigor decreased. The failure of introgression from tetraploid to diploid wheats may be due to differential selection for unreduced gametes and adverse nucleo-cytoplasmic interactions.

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