Indian Journal of Agricultural Research, volume 36 issue 4 (december 2002) : 269- 273
PHENOTYPIC STABILITY AND ADAPTABILITY OF CASTOR HYBRIDS
H.J. Joshi·, D.R. Mehta·, B.S. Jadon
1Gujarat Agricultural University, Sardar Krushinagar - 385 506, India
Chief Editor:
V. Geethalakshmi
Tamil Nadu Agricultural University Coimbatore, INDIA
ABSTRACT
A set of 112 crosses of castor were studied under four artificially created environments to characterize stability for yield and its contributing components. Both linear and non-linear components of G x E interaction were found to be significant for all the traits (except days to flowering and days to maturity) revealing difficulty in prediction of performance of the characters studied in varied environments. The crosses SKP 25 x T 4, SKP 25 x EC 97700, SKP 93 x JI 77, VP 1 x Arona and SKP 25 x RC 8 showed high seed yield/plant with unit regression coefficients and non-significant deviation from regression indicating stable performance of these crosses invarying environments. Number of effective branches/plant, number of capsules/plant and 100-seed weight were the major components of seed yield varied in compensatory fashion to impart homeostasis to seed yield/plant.
KEYWORDS
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