Asian Journal of Bio Science

S. B. Sarode ¹, P. B. Ghorpade ¹, P. M. Wayazade ², S. B. Deshmukh ³, S. S. Gomashe ⁴

Affiliations
1 Department of Agricultural Botany, Collage of Agriculture, Nagpur (M.S.), IN
2 Department of Agronomy , Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (M.S.), IN
3 Department of Agricultural Botany, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (M.S.), IN
4 Medicinal and Aromatic Plant Research Unit, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (M.S.), IN

Abstract

Selected lines of safflower (Carthamus tinctorius L) were used to predict the heterosis for yield and yield components and to assess the reliability of prediction methods. The highest magnitude of useful heterosis was observed in respect of number of seeds per capitula (53.78%), seed yield per plant (27.23%), 100 seed weight (2.58%) and days to maturity (-2.87%). Only one cross, AKMS 1 x JLSF 228 recorded significant useful heterosis over the check variety Bhima for seed yield per plant (27.23%).The parents JLSF 228, A₁ and Bhima were good general combiners for seed yield per plant. The predictive model was effective for describing hybrid. There was, however, the positive relationship between mid parent and hybrid yield indicating that mid parent may still be a useful guide for the selection of parents for testing hybrid combinations. The effectiveness of predictive and postdiction model differed for different characters except for number of seeds per capitulum and days to maturity for which both models were equally effective in predicting hybrid yield.

Keywords

Carthamus tinctorius L. Postdiction of Heterosis, Prediction of Heterosis.

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S. B. Sarode ¹, P. B. Ghorpade ¹, P. M. Wayazade ², S. B. Deshmukh ³, S. S. Gomashe ⁴

Affiliations
1 Department of Agricultural Botany, Collage of Agriculture, Nagpur (M.S.), IN
2 Department of Agronomy, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (M.S.), IN
3 Department of Agricultural Botany, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (M.S.), IN
4 Medicinal and Aromatic Plant Research Unit, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (M.S.), IN

Abstract

Top cross analysis consisted of crosses between GMS line AKSMS 1 as a tester (female) and twenty one male lines. Significant heterosis was observed for all the ten quantitative traits except number of capitula per plant and oil content. The magnitude of heterosis and useful heterosis was low and differed for different characters. The highest magnitude of useful heterosis was observed in respect of number of seeds per capitulum (53.78 %), seed yield per plant (27.23 %), 100 seed weight (2.58 %) and days to maturity (-2.87 %). Only one cross, AKSMS 1 X JLSF 228, recorded significant useful heterosis over check variety, Bhima for seed yield per plant (27.23 %). AKSMS 1 X JLSF 228 showed significant highest useful heterosis for number of seeds per capitulum (53.78 %). The estimates of general combining ability indicated that JLSF 288 recorded highest significant general combining ability effect for seed yield per plant (26.27**), plant height (10.41 **) and number of seeds per capitulum (9.87**). A 1 showed significant general combining ability effect for seed yield per plant (15.91**). Bhima was good general combiner for seed yield per plant (13.39**), plant height (6.16**), number of primary branches per plant (1.74**) and 100 seed weight (0.96**).

Keywords

Hererosis, Combining Analysis, Safflower.

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