Not Available

Not AvailableNot AvailableNot Availabl

Not Available

Not AvailableUnlike kharif sorghum being dominated with hybrids, post-rainy sorghum growing areas are mainlycultivated with varieties especially landrace selections. Contrary to kharif hybrids, the heterosis in rabi hybrids is insignificant as the landraces are used in the development of hybrid parents.Most of the varieties developed by breeders in self-pollinated crops like sorghum are based on single crosses between two parents and bi-parental populations have only one opportunity for crossing over. However 34 break-up points are estimated to occur per crossing generation.Limited efforts have been made in generating multiple crosses (e.g., three-way or double crosses). In the present study eight parents viz., M35-1, Parbhani Moti, DSV5, CSV216R, CSV29R, CRS20, Sel.3 and CRS4 of rabi adaptation were used to synthesize four single crosses and two double crosses. Double and single crosses along with their parents were evaluated in Randomized Block Design in two replications and the mean valueswere used to estimate the magnitude of heterosis for yield and its attributing traits over mid-parent and better parent. Results revealed that there are significant differences for most of the traits and double cross hybrids were better in their performance over single cross hybrids. One of the double cross hybrid DC-2;((DSV5 × Sel.3) × (CSV216R × CRS4)) exhibited highest level of heterosis for the traits like panicle weight (Mp=64.27%;Bp=45.99%), grain yield per plant (Mp=81.72%; Bp=56.76%), fodder yield per plant (Mp=71.15%; Bp=55.82%) and 100 seed weight (Mp=63.27%; Bp=60%, with a highest mean value of 6.0g) whereas other double cross DC-1;((M35-1 × CSV-29R) × (Parbhani Moti × CRS-20))found superior for plant height, panicle exertion and panicle length. Even though two single cross hybrids viz.,CSV216R × CRS4 and Parbhani Moti × CRS20 showed good levels of heterosis for Panicle exertion, panicle length, grain yield and fodder yield but the values are less than double cross hybrids. So study indicated that an additional round hybridization involving more parents may be of much rewarding in diversifying the genetic base of breeding populations and realizing fair amount of heterosis in post rainy situation than that of bi-parental matings.Not Availabl

Not Available

Not AvailableNot AvailableNot Availabl

Not Available

Not AvailableThe folder gives information about establishment of the centre, infrastructure, mandate, research and extension activities and Staff till 2018.Not Availabl

Not Available

Not AvailableNot AvailableNot Availabl

Not Available

Not AvailablePost-rainy (Rabi) sorghum grows under residual soil moisture conditions and is important for food and fodder security especially during dry seasons in semi-arid regions of India. Unlike rainy sorghum being dominated with hybrids ,post rainy sorghum growing areas are cultivated with varieties especially landrace selections. Genetic improvement of rabi sorghum is hindered by lack of phenotypic variability among breeding lines. Most of the present day improved varieties are the result of pur-line selection practiced among the local /popular varieties. The available varieties have a moderate resistance to biotic and abiotic stresses with moderate average yield (900Kg/ha) but there is a lot of scope to increase up to 1200Kg/ha in near future by reorienting and strengthening rabi breeding programs. Identifying natural allelic variation that underlines quantitative trait variation remains a fundamental problem in genetics. Most studies have employed either simple synthetic populations with restricted allelic variation or performed association mapping on a sample of naturally occurring haplotypes. Both of these approaches have some limitations, therefore alternative resources for the genetic dissection of complex traits continue to be sought. Nevertheless, Breeders and Molecular geneticists have routinely used populations derived from bi-parental crosses for variety development and mapping quantitative trait loci (QTLs). Most of the varieties in self- pollinated crops like sorghum are based on single crosses between two parents and bi-parental populations have only one opportunity for crossing over . In this context, a novel multi-genotype breeding strategy to achieve genetic diversity within a variety where multi-genotype varieties of Rabi sorghum have to be developed through convergent crossing of multiple parental lines. Development of MAGIC populations helps to promote inter-crossing and shuffling of the genome. Such populations are now attractive for researchers due to the development of high – throughput SNP genotyping platforms and advances in statistical methods to analyze data from such populations.Not Availabl

Not Available

Not AvailableCombining ability analysis is usually employed to identify the desirable parent and to study the nature of genetic variation. Keeping this in view , field experiments were conducted at Centre on Rabi Sorghum, ICAR-Indian Institute of Millets Research, Solapur during 2015-16 & 2016-17 to assess the combining ability for yield and its attributing traits in Rabi sorghum. The experimental material consisted of four lines viz. CSV 29R, Selection 3, M35-1, Phule chitra and four testers viz. Solapur Dagdi, CRS 20, DSV 5 and CRS 4. The crosses were affected in a line x Tester fashion. The crosses along with parents were evaluated in a Randomized Block Design with two replications . The results revealed that among the lines CSV 29R and M35-1 and among the testers CRS 20 and DSV 5 had recorded high per se and gca for yield and its contributing characters. Among the hybrids combinations CSV 29R x CRS 20 and CSV 29R x DSV 5 had significant and superior per se performance for grain yield per plant, fodder yield per plant, panicle length , panicle weight and 1000 seed weight. Results from specific combining ability studies , revealed that the crosses viz. CSV 29R x CRS 20, M35-1 x CRS 20, and CSV 29R x DSV 5 had significant sca effects for most of the characters. The hybrids CSV 29R x CRS 20, CSV 29R x DSv 5, and M35-1 x CRS 20 were from parents with high x high gca and CSV 29R x Solapur Dagdi, Selection 3 x CRS 4 and M35-1 x Solapur Dagdi were from parents with high x low gca combinations. Thus , six crosses are suggested for realization of transgressive segregants in F2 and subsequent generations.Not Availabl

Not Available

Not AvailableNot AvailableNot Availabl