STUDY OF SOME PHYSIOLOGICAL TRAITS AND
ITS EFFECT ON YIELD OF RAPESEED/MUSTARD VARIETIES
Authors: F. Begum,
F. Ahmad*, R. R. Saha, M. A. Jahan and M. A. Rahman
*Corresponding
Author, E-mail: faruquebari@gmail.com
Abstract
A field experiment on rapeseed/mustard varieties was
conducted to evaluate physiological traits of the varieties and their influence
on yield. BARI Sarisha-10, BARI Sarisha-13, BARI Sarisha-14 and BARI Sarisha-15
were used as test crop in the study. Different physiological parameters like leaf
chlorophyll content, leaf nitrogen content, photosynthetic efficiency, days to
flowering and crop growth duration of rapeseed/mustard varieties were studied.
BARI Sarisha-10, BARI Sarisha-13, BARI Sarisha-14 and BARI Sarisha-15 have been
identified as high photosynthetic efficient variety (22 to 26 mmol m-2S-1) while Tori-7 was low
photosynthetic efficient (13.94 to 15.83mmol m-2S-1). BARI Sarisha-14 was short
duration (84 days) variety followed by Tori-7 (88 days) while BARI Sarisha-10 had
long duration (101 days). Irrespective of the variety, leaf nitrogen content was
highest (4.21 to 4.98%) at vegetative stage and the lowest (2.22 to 3.13%) at
pod development stage. Among the varieties, BARI Sarisha-15 performed better than
others in respect of plant height, leaf chlorophyll content (1.15 to 1.73 g g -1
fw), photosynthetic efficiency (20 to 26 mmol m-2S-1), number of siliqua plant
-1(81), number of seed siliqua -1 (23) and seed yield (1833
kg ha-1). On the other hand, Tori-7 showed poor performance in
respect of above said physiological parameters along with seed yield (1000 kg
ha-1).
Key words: Rapeseed/mustard,
Photosynthetic efficiency, dry matter and seed yield.
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Return Volume: Journal of Experimental Biosciences 6(2): July 2015
