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Effect of De-Branching on the Yield and Yield Components of Mustard (Brassica juncea)

Published online by Cambridge University Press:  03 October 2008

Y. S. Chauhan ,
S. C. Bhargava  and
D. P. S. Tomar
Y. S. Chauhan
Affiliation:
Division of Plant Physiology, Indian Agricultural Research Institute, New Delhi 110012, India
S. C. Bhargava
Affiliation:
Division of Plant Physiology, Indian Agricultural Research Institute, New Delhi 110012, India
D. P. S. Tomar
Affiliation:
Division of Plant Physiology, Indian Agricultural Research Institute, New Delhi 110012, India
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Summary

Branches are an important yield attribute of the mustard (Brassica junceo)crop. However, not all the branches are equally productive and some of those arising from the basal portion of the plant may form parasitic sinks for assimilates. The effect of de-branching at the 50% flowering stage in the apical (AHD) and the basal halves (BHD) of two mustard genotypes, Pusa Bold and Varuna, was examined. The BHD treatment increased the seed yield per plant of Pusa Bold by 36% and of Varuna by 75% over the control. The increase in yield due to the BHD treatment was mainly due to an improvement in the total number of pods per plant in both genotypes. In Pusa Bold, an improvement in both 1000-seed weight and number of seeds per pod, mainly on late formed branches, was also observed. The AHD treatment reduced seed yield but not significantly so. The results suggest that improvement in the yield of mustard cultivars by suppressing branching on the basal portion of plants should be possible.

Type
Research Article
Information
Experimental Agriculture , Volume 23 , Issue 4 , October 1987 , pp. 395 - 400
Copyright
Copyright © Cambridge University Press 1987

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References

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