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PATH COEFFICIENT ANALYSIS IN SAFFLOWER (Chartamus tinctorius L.) LINES.


V. ALBA, G. B. POLIGNANO, M. GALANTE, G. CARROZZO, E. ALBA

Issue:

SCSB, Volume XIV

Section:

Volume XIV - Vegetal Biology

Abstract:

Twenty-eight lines of safflower (Chartamus tinctorius L.) were evaluated during two seasons: 2005-2006 and 2006-2007 in Aradeo LE (Apulia region) to study the interrelationships among seven characters such as: oil yield components (seed yield and oil content) days to flowering, plant height, 1000 seed weight and branches with head. To analyse the cause-effect relationship upon the oil yield components (seed yield and oil content) and four morpho-biological characters a path coefficient analysis was performed. The results obtained showed that: seed yield strongly influenced oil yield, while oil content had a milder action. The last two traits were negatively affected by plant height and branches with head, while days to flowering exerted a strong direct effect upon oil content. Considering the direct action of seed yield and oil content upon oil yield, it is worth nothing the stronger influence of the former, thus indicating a strategy of a selection based upon seed yield.

Keywords:

Safflower, Path analysis, Oil Yield, Breeding.

Code [ID]:

SCSB200814V14S02A0010 [0002452]


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