Asian Journal of Bio Science

G. T. Ingale ¹, S. R. Kamdi ¹, S. U. Shinde ¹, M. B. Ingle ¹, H. S. Baheti ¹

Affiliations
1 Department of plant physiology, Indira Gandhi Agricultural University, Raipur (C.G.), IN

Abstract

Experiment was carried out with six genotypes of greengram (Vigna radiata) viz., 2KM 13 , 2KM 17, 2KM 19, 2KM 33, 2KM 32 and Malviya jyoti at college of agriculture IGAU, Raipur (C.G.) during kharif season 2002, in randomized block design (RBD) with four replications to study the dry matter accumulation and its partitioning with respect to seed yield and harvest index. Study revealed that dry matter accumulation in different plant components increased upto maturity. Among all the genotypes 2KM 33 showed higher dry matter accumulation per plant and also higher value of seed yield and harvest index.

Keywords

Greengram, Genotypes, Seed yield, Harvest Index.

Full Text

     

M. B. Ingle ¹, S. A. Ghorpade ¹, H. S. Baheti ¹, S. R. Kamdi ¹

Affiliations
1 Department of Agril. Entomology, Mahatma Phule Krishi Vidyapeeth, Rahuri, Ahmednagar (M.S.), IN

Abstract

Bioassay tests in the laboratory were conducted to study the susceptibility of adult T. chilonis to different concentrations of endosulfan. The newly emerged F₁ progeny were subjected to increased concentration of endosulfan. It was found that after the treatment of adult T. chilonis with endosulfan for 15 generations, the LC₅₀ values of endosulfan increased by 13.27% from 0.0437% of base colony (susceptible) to 0.0495% of selected F₁₅ colony (tolerant). To study the mode of inheritance, the programme of back crossing was undertaken. LC₅₀ values of back cross progeny obtained was 0.0476% which was intermediate between susceptible (S) colony (LC₅₀ 0.0437%) and F₁₅ selected (R) colony (LC₅₀ 0.0495%) indicating that the gene for endosulfan tolerance is completely dominant.

Keywords

Bioassay, Trichogramma, Tolerance, Inheritance, Backcrossing.

Full Text