Three cross hybrids in maize

A study was carried out using 48single cross experimental maize hybrids developed from 16 lines (with high test weight and per se performance) and three testers crossed in Line × Tester design and were evaluated at three diverse environments, viz. Arabhavi (Northern dry zone), Agriculture Research Stations of Nippani and Main Agricultural Research Station (MARS) Dharwad (Northern transition zone) in Karnataka, for their grain yield stability.

11p gaocaolon9 22-12-2020 13 1   Download

Study on combining ability effects were carried out in 28 hybrids obtained by crossing 8 x 8 genotypes in half diallel fashion and parents, hybrids evaluated with standard check Maharaja in RBD with three replication during kharif2018-19 at research farm of Agriculture botany College of Agriculture, Latur for twelve traits viz.

8p nguaconbaynhay7 15-08-2020 18 1   Download

In the present study conducted at AICRP Maize, University of Agricultural Sciences, Dharwad, sixty single cross hybrids were produced by crossing twenty female inbred lines to three divergent inbred male testers in line x tester design. The parental inbred lines along with test cross hybrids, resistant check, susceptible check and hybrid checks were evaluated for their disease reaction against turcicum leaf blight under artificial epiphytotic condition.

8p nguathienthan5 04-06-2020 14 1   Download

Forty five hybrids were generated from crossing fifteen lines with three testers in line × tester design. The hybrids along with parents were evaluated for yield and yield component traits to study combining ability and gene action in maize. The general combining ability (gca) and specific combining ability (sca) were significant for all the characters, which indicates the importance of both additive and non-additive genetic components.

8p chauchaungayxua5 08-05-2020 17 1   Download

The yield is a complex trait, which is highly influenced by the environment and hence indirect selection through component traits would be an advisable strategy to increase the efficiency of selection. Fifty two F1’ s generated by crossing 26 lines with 2 testers in line × tester fashion were evaluated in randomized block design along with three standard checks with two replications.

4p nguathienthan4 18-04-2020 21 1   Download

Study was carried out to determine the stability for grain yield of 20 maize hybrids in three environments viz., Dharwad, Sankeshwar and Nippani using Eberhart and Russel model. The single cross hybrids DMH 100-1, DMH 100-2, DMH 100-4, DMH 100-8, DMH 100-12 and DMH 100-16 were promising for majority of characters studied with high mean performance across the locations during summer.

8p kethamoi4 16-04-2020 8 1   Download

The experiment comprised of six F1’s, which were selected based on the combinations of low yield × high yield and low ASI × high ASI. The selected six F1’s were crossed in full diallel mating design to synthesis 18 three way crosses was estimated and validated on the basis of performance of their constituent single crosses. Out of 18 hybrids, TWC 3 recorded lower days to tasseling and silking and hence it can be used further in breeding programme. While, TWC 4 (0.32), TWC 11 (0.5), TWC 9 (0.76), TWC 10 (0.79), TWC 14 (0.81) and TWC 5 (0.89) recorded least ASI.

11p trinhthamhodang4 22-03-2020 30 2   Download