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Effect of magnesium sulphate on yield, economics and growth attributes of rainfed safflower (Carthamus tinctorious) in scarcity zone of Maharashtra

S.V. Khadtare, S.K. Shinde, V.B. Akashe, D.V. Indi and V. M. Toradmal
AICRP on Safflower, Mahatma Phule Krishi Vidyapeeth, 97 Raviwar Peth, Solapur , Maharashtra- 413 002, India

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MgSO4 application showed significant influence on productivity and quality of safflower. Among the various treatments tested, application of MgSO4 @ 750 ppm at bud initiation (BI) and flower initiation (FI) recorded the higher seed yield (1143 kg/ha). The higher volume weight (728.4g/l) and 100 seed weight (6.04 g) was also observed under the same treatment. The effect of MgSO4 @ 750 ppm at BI and FI was also found significantly superior in terms of SPAD index, RLWC, LAI on A and leaf area. Application of MgSO4 @ 500 ppm was statistically at par with MgSO4 @ 750 ppm at BI and FI in many other parameters under study. Numerically higher net monitory returns (Rs. 17667/ha) and B: C ratio (2.14) was realized with application of MgSO4 @ 750 ppm at BI and FI. 
Chlorophyll, Dry matter, LAI, Magnesium sulphate, Photosynthesis.
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