GROWTH CHARACTERISTICS, GRAIN YIELD, YIELD COMPONENTS AND OIL RATE IN THREE SAFFLOWER (CARTHAMUS TINCTORIOUS L.) CULTIVARS UNDER WATER STRESS IN HAMEDAN

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SHALCHI M.; SEPEHRI A.; AHMADVAND G.

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Journal: AGRICULTURAL RESEARCH Year:2008 | Volume:7 | Issue:4 (A) Page(s): 71-85

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Title

GROWTH CHARACTERISTICS, GRAIN YIELD, YIELD COMPONENTS AND OIL RATE IN THREE SAFFLOWER (CARTHAMUS TINCTORIOUS L.) CULTIVARS UNDER WATER STRESS IN HAMEDAN

Author(s)

SHALCHI M. | SEPEHRI A. | AHMADVAND G. | Issue Writer Certificate

Keywords

GRAIN YIELDQ2

OIL YIELDQ2

PHYSIOLOGICAL CHARACTERISTICSQ2

SAFFLOWERQ2

WATER STRESSQ2

YIELD COMPONENTSQ2

Abstract

Safflower (Carthamus tinctorious L.) is one of the most important plants in crop rotation and economical stability in semi-arid agro ecosystems. Although low yield in SAFFLOWER compared to other crops, may decrease its competitive ability understanding the differences between high and low yielding cultivars under drought and the relationships between them and yield, might be important in increasing seed production. A split-plot arrangement of treatment in a randomized complete block design with three replications was used at research farm of Bu-Ali Sina University, located in Hamedan, in 2006 growing seasons. Three cultivars of spring SAFFLOWER including IL-111, PI and Isfahan local cultivar under WATER STRESS at vegetative and reproductive growth stages were used. In this research some of the growth indices and PHYSIOLOGICAL CHARACTERISTICS such as total dry matter accumulation (TDM), crop growth rate (CGR), relative growth rate (RGR), net assimilation rate (NAR), leaf area index (LAI), in three cultivars (IL-111, PI and Esfahan native), was evaluated.The longest growth duration was seen from Esfehan native and shortest growth duration was observed from IL-111 cultivar under WATER STRESS. Leaf area index decreased with decreasing availability of water. Maximum total dry matter and crop growth rate were observed in PI cultivar.The highest net assimilation rate also was obtained in PI cv. Significant differences were observed between three cultivars in biological yield, GRAIN YIELD, YIELD COMPONENTS, seed oil percentage, OIL YIELD and Harvest index. The lowest biomass and grain were belong to WATER STRESSed plant in vegetative and reproductive stages. WATER STRESS at vegetative and reproductive growth stages decreased 20.7% and 31.28% of GRAIN YIELD respectively in comparison with non-stress plants (control). The result showed that the maximum GRAIN YIELD and OIL YIELD were observed in PI and IL-111 cultivar under non-stress treatment. In contrast, oil percentage and OIL YIELD in IL-111 decreased sharply under WATER STRESS at vegetative or reproductive stages. Maximum GRAIN YIELD and OIL YIELD was belong to PI under vegetative WATER STRESS.

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APA: Copy

SHALCHI, M., SEPEHRI, A., & AHMADVAND, G.. (2008). GROWTH CHARACTERISTICS, GRAIN YIELD, YIELD COMPONENTS AND OIL RATE IN THREE SAFFLOWER (CARTHAMUS TINCTORIOUS L.) CULTIVARS UNDER WATER STRESS IN HAMEDAN. AGRICULTURAL RESEARCH, 7(4 (A)), 71-85. SID. https://sid.ir/paper/84693/en

Vancouver: Copy

SHALCHI M., SEPEHRI A., AHMADVAND G.. GROWTH CHARACTERISTICS, GRAIN YIELD, YIELD COMPONENTS AND OIL RATE IN THREE SAFFLOWER (CARTHAMUS TINCTORIOUS L.) CULTIVARS UNDER WATER STRESS IN HAMEDAN. AGRICULTURAL RESEARCH[Internet]. 2008;7(4 (A)):71-85. Available from: https://sid.ir/paper/84693/en

IEEE: Copy

M. SHALCHI, A. SEPEHRI, and G. AHMADVAND, “GROWTH CHARACTERISTICS, GRAIN YIELD, YIELD COMPONENTS AND OIL RATE IN THREE SAFFLOWER (CARTHAMUS TINCTORIOUS L.) CULTIVARS UNDER WATER STRESS IN HAMEDAN,” AGRICULTURAL RESEARCH, vol. 7, no. 4 (A), pp. 71–85, 2008, [Online]. Available: https://sid.ir/paper/84693/en

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