Abstract
Calibration models were developed for Fourier Transform Near Infrared Reflectance spectroscopy using PLS method and coefficients of determination (r 2 ) for oil, protein, erucic acid and crude fiber contents were estimated 0.907, 0.922, 0.902, 0.903, respectively. Effects of the salinity on these traits were studied under normal and saline environments in the field (ECe 10.7dS·m -1 ) and nethouse using saline irrigation levels (EC iw 0, 9, 12, 15, 18 dS/m) during 2011–12 and 2012–13. At higher salinity; oil, protein and crude fiber contents decreased by 7.27, 14.78, 34.25% and 5.78, 29.31, 20.45% in nethouse and field conditions respectively, whereas erucic acid content increased by 72.43 and 12.20%. Thus, FT-NIRS may be useful for quick and nondestructive estimations of oil quality parameters in Indian mustard.
Highlights
Around the globe, a 932.2 million hectare area is affected with salinity and sodicity stresses (Metternicht and Zinck, 2003), out of which, an area of nearly 6.73 million hectare is affected by these stresses in India
India is the second largest country in rapeseed mustard production and more than 85% of its area under rapeseed mustard is occupied by Indian mustard B. juncea (L.) alone, because, compared to the more widely grown brassica species B. napus and B. rapa, B. juncea is more tolerant to heat and drought stress, has high yield potential and wide adaptability
Four outliers were detected for oil content, 7 for erucic acid, one for protein content and none of the outliers was detected for crude fiber contents
Summary
A 932.2 million hectare area is affected with salinity and sodicity stresses (Metternicht and Zinck, 2003), out of which, an area of nearly 6.73 million hectare is affected by these stresses in India. The arid and semiarid areas in different states are associated with underground saline water, which have to be used for irrigation, due to the unavailability or diversion of good quality water to other than agricultural purposes. The use of such water is further rendering the soils unfit for crop cultivation. India is the second largest country in rapeseed mustard production and more than 85% of its area under rapeseed mustard is occupied by Indian mustard B. juncea (L.) alone, because, compared to the more widely grown brassica species B. napus and B. rapa, B. juncea is more tolerant to heat and drought stress, has high yield potential and wide adaptability. The species does not shatter as readily as B. napus and so it can be straight cut or swathed and combined
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
