Paper Details

Study  of  dry  matter  partitioning  into  leaf,  stem  and  pod  at different oil-seed rape cultivars

Pooya Arvin, Mehdi Azizi, Rana Firuzeh

DOI: https://dx.doi.org/10.12692/ijb/4.10.243-248

Int. J. Biosci. 4(10), 243-248. May, 2014. (PDF)

Abstract:

Simulation of dry matter partitioning and distribution of crop is an important means of predicting yield .In order to evaluation of leaf and pod partitioning coefficient among 13 spring rapeseed cultivars, an experiment was carried out in 2010 growing season at Agriculture and Natural Resources Research Station of Torogh, Mashhad. Experimental design was Randomized Complete Block with 4 replications. Results revealed that considerable difference was existed among cultivars for leaf partitioning coefficient .In this trail Goldrush with 0.68+0.076 gr/gr and Zarfam with 0.68+0.074 gr/gr had the most and BP18 with 0.22+0.15 gr/gr had the least leaf partitioning coefficient rather than other cultivars respectively .Leaf-stem partitioning figures showed that from onset till cessation of flowering, stems were both more active and bigger sources than leaves for receiving of assimilations. Meanwhile lessening trend of leaf partitioning during flowering period was observable among spring cultivars .significant difference was obtained among varieties regarding partitioning coefficient into pod. Hyolla hybrids represented the most pod partitioning coefficient in comparison with other cultivars. Both yield and harvest index had strong and positive correlation with pod partitioning coefficient in this experiment.