scholarly journals Amino acids in anthers of Milo and in cytoplasmic genetic male sterile sorghums (Sorghum bicolor L. Moench) of Indian origin

1981 ◽  
Vol 59 (2) ◽  
pp. 113-116
Author(s):  
D. P. Tripathi ◽  
S. L. Mehta ◽  
N. G. P. Rao
Keyword(s):  
Amino Acids ◽  
Sorghum Bicolor ◽  
Male Sterile ◽  
Indian Origin ◽  
Sorghum Bicolor L

scholarly journals Experimental studies on pollen-mediated gene flow in Sorghum bicolor (L.) Moench using male-sterile bait plants

2010 ◽  
Vol 130 (2) ◽  
pp. 217-224 ◽  
Author(s):  
I. Y. Rabbi ◽  
H. K. Parzies ◽  
D. Kiambi ◽  
B. I. G. Haussmann ◽  
R. Folkertsma ◽  
...  
Keyword(s):  
Gene Flow ◽  
Sorghum Bicolor ◽  
Experimental Studies ◽  
Male Sterile ◽  
Bait Plants ◽  
Sorghum Bicolor L

DISTANCE FROM POLLEN SOURCE AND YIELDS OF MALE STERILE SUNFLOWER AND SORGHUM

1984 ◽  
Vol 64 (4) ◽  
pp. 857-861 ◽  
Author(s):  
ROBERT G. ROBINSON
Keyword(s):  
Sorghum Bicolor ◽  
Helianthus Annuus ◽  
Seed Yield ◽  
Efficient Production ◽  
Production Plant ◽  
Hybrid Seed Production ◽  
Male Sterile ◽  
Helianthus Annuus L ◽  
Sterile Seed ◽  
Sorghum Bicolor L

Efficient production of hybrid sunflower (Helianthus annuus L.) and sorghum (Sorghum bicolor (L.) Moench) seed requires a minimum but adequate proportion of the land for pollinator rows and that the male sterile and pollinator rows accommodate production machinery. The objective of this research was to determine the effect of distance from pollen source on male sterile seed yield and if presently used ratios of male sterile to pollinator rows could be increased without reduction in seed yield of the male sterile parent from the land area occupied by both parents. Seed was harvested from male sterile rows located from 1 (76 cm) to 40 (30 m) rows from the pollen source. Correlations and regression analyses showed that yield per row declined linearly with distance from the pollinator rows. However, yield of the male sterile parent per hectare of area occupied by both parents was increased by including up to at least six male sterile and two pollinator rows per strip. Male sterile to pollinator row ratios of 12:1 for sunflower and 7:1 for grain sorghum did not differ significantly from the commonly used 3:1 ratio in yield of male sterile parent per hectare of area occupied by both parents.Key words: Helianthus annuus L., Sorghum bicolor (L.) Moench, hybrid seed production, plant breeding

scholarly journals Identification of stable restorers for diverse cytoplasmic source in Sorghum [Sorghum bicolor (L.) Moench.]

2020 ◽  
Vol 80 (02) ◽  
Author(s):  
N. Sandeep ◽  
Basavaraj Biradar
Keyword(s):  
Cytoplasmic Male Sterility ◽  
Sorghum Bicolor ◽  
Seed Set ◽  
Fertility Restoration ◽  
Male Sterile ◽  
Commercial Exploitation ◽  
M 31 ◽  
Fertility Restorers ◽  
Sorghum Bicolor L ◽  
Sorghum Germplasm

In sorghum [Sorghum bicolor (L.) Moench.], milo is the lone source of cytoplasmic male sterility (CMS) extensively used in production of commercial hybrids. The hazards of such a narrow cytoplasmic base are apparent and consequently new diverse sources like A2, A3, A4, maldandi, VZM and G1 were identified. However, the commercial exploitation of these sources has not been possible because of the difficulty in fertility restoration on these sources. The present study was, therefore, undertaken to test different sorghum germplasm lines for their fertility restoration/maintenance on maldandi and milo cytoplasm. Twenty-five diverse accession were selected from minicore collection and crossed with two male sterile lines viz., 104A (milo) and M 31-2A (maldandi). The resulting F1s were classified as fertility restorers and maintainers based on seed set on bagged ear heads. The restoration studies indicated that 2 lines on maldandi and 6 on milo cytoplasm showed strong fertility restoration (> 90 % seed set).

scholarly journals Evaluation of Seven Sorghums, Selfed and Crossed to Three Cytoplasmic Male-Sterile Lines

1969 ◽  
Vol 62 (2) ◽  
pp. 156-164
Author(s):  
A. Sotomayor-Ríos ◽  
D. E. Weibel
Keyword(s):  
Grain Yield ◽  
Sorghum Bicolor ◽  
Grain Sorghum ◽  
Test Weight ◽  
F1 Hybrids ◽  
Male Sterile ◽  
Cytoplasmic Male Sterile ◽  
Complementary Effect ◽  
Sorghum Bicolor L ◽  
High Test

Seven grain sorghum lines (Sorghum bicolor (L.) Moench) selected from the Sorghum Conversion Program (SCP) and their F1 hybrids from crosses with CK-60, Martin, and Redlan were evaluated. Days to midflower, height, rust (Puccinia purpurea Ckd.) reaction, number of heads/plot, test weight, threshing percentage, and grain yield were rated or measured. The seven lines when selfed were, in general, the latest to reach midf lower. Four height groups were observed; the taller hybrids were the result of the complementary effect of different height factors in the parents. Rust ratings ranged from 2.9 to 4.9; F1 hybrids Martin x 4, Martin x 7, and Redlan x 7 were the most susceptible to rust. Generally, sorghums with a high grain yield also had a high test weight and thresh ing percentage. The grain yield ranged from 1,866 to 4,261 kg/ha. Mean yields were, on the average, 26% higher for F1 hybrids than for their respective male parents. A 67% heterosis for grain yield was observed in two crosses invo lving Martin and Redlan female parents.

Chloroplast DNA polymorphism in fertile and male-sterile cytoplasms of sorghum (Sorghum bicolor (L.) Moench)

1990 ◽  
Vol 80 (6) ◽  
pp. 727-731 ◽  
Author(s):  
Zengjian Chen ◽  
G. H. Liang ◽  
S. Muthukrishnan ◽  
K. D. Kofoid
Keyword(s):  
Sorghum Bicolor ◽  
Chloroplast Dna ◽  
Dna Polymorphism ◽  
Male Sterile ◽  
Sorghum Bicolor L

scholarly journals Calidad de semilla de genotipos isocitoplasmicos de sorgo (Sorghum bicolor L. Moench.)

2016 ◽  
Vol 6 ◽  
pp. 111
Author(s):  
Víctor Pecina ◽  
Enrique Navarro ◽  
Héctor Williams ◽  
Raúl Rodríguez
Keyword(s):  
Experimental Design ◽  
Sorghum Bicolor ◽  
Seed Quality ◽  
Dry Weight ◽  
Quality Traits ◽  
Male Sterile ◽  
Physiological Maturity ◽  
A1 Cytoplasm ◽  
Harvest Maturity ◽  
Sorghum Bicolor L

The production of sorghum hybrids depends almost entirely on one genic-cytoplasmic sterility system (Milo-Kafir, A1 Cytoplasm), therefore its importance in increasing the diversity of the number of male-sterile sources, as the named A2 Cytoplasm. This system was introduced at the Rio Bravo Experiment Station (lNIFAP-CIRNE) in Tamaulipas, Mexico, where ge-netic material and seed production were developed. The objetive was to compare the seed quality ofthe isocytoplasmic genotypes (A1 and A2 cytoplasm). A Completely Radomized Experimental Design with Factorial Arrangement and two replications was used. The results show that there were no differences between the two types of cytoplasm (A1 and A2) for the following quality traits: volumetric weight of seeds, 1000 seeds' weight, germination(G) and seedling dry weight (SDW), through nine months of storage; whereas in vigor (G and SDW after fast aging) the A2 cytoplasm surpassed the Al cytoplasm and the same behavior was observed on the seed harvested at its physiological maturity, while at harvest maturity the Al was superior in G and SDW.

scholarly journals Comparative analysis of restoration behavior of milo (104A, 401A) and maldandi (M31-2A) based male sterile lines in sorghum [Sorghum bicolor (L.) Monech]

2021 ◽  
Author(s):  
Lokesh Kumar Verma Kumar Verma ◽  
B. D. Biradar ◽  
S. S. Patil ◽  
S. N. Chattannavar ◽  
V. S. Kubsad
Keyword(s):  
Grain Size ◽  
Comparative Analysis ◽  
Sorghum Bicolor ◽  
Male Sterility ◽  
Seed Set ◽  
Male Sterile ◽  
Pests And Diseases ◽  
Near Future ◽  
Sorghum Bicolor L

Abstract In sorghum, milo source of male sterility has been used for developing all the hybrids so far and it created the narrow cytoplasmic base. In addition, it also narrows down the nuclear diversity which may be the invitation for the outbreak of pests and diseases in the near future. To handle this hazard new diverse sources like A2, A3, A4, maldandi, VZM and G1 have been discovered. The availability of restorers on these sources is very difficult hence their utilization is also a challenging task. The present study was, therefore, carried out to test different sorghum lines for restoration behavior on two milo lines (104A and 401A) and one maldandi (M31-2A) with more emphasis on maldnadi source because of its added advantage of enhancing grain size and pest tolerance. In rabi-2017, 125 genotypes were tested for the restoration behavior on these sources, and five restorers viz., IS 19389, IS 995, IS 28389, IS 26046 (BRJ 67 − 8) and DSMR-8 restored fertility on 104A, two lines viz., IS 29335 and IS 26046 restored on 401A, while on M31-2A six lines viz., IS 19975, BRJ-67-4 (DSMR-4), BRJ 67 − 8 (DSMR-8), BRJ 67 − 16, BRJ 67 − 19, BRJ 67 − 21 restored the fertility. only two lines DSMR-8 and DSMR-4 exhibited stable, consistent and strong restoration (> 90% seed set) across the seasons (rabi-2017 and kharif-2017) and years (2017 and rabi-2018). All the used MS lines exhibited the restoration complexity in the following order − 104A < 401A < M31-2A.

Isozyme Analysis of Some Male Sterile Lines in Sorghum bicolor (L.) Moench

1987 ◽  
Vol 98 (4) ◽  
pp. 342-345
Author(s):  
P. S. Phul ◽  
B. S. Chhina ◽  
Raman Kumar
Keyword(s):  
Sorghum Bicolor ◽  
Isozyme Analysis ◽  
Male Sterile ◽  
Sorghum Bicolor L
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