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Effect of Age of Seedlings at Transplanting on Growth and Yield of Rice Varieties (Oryza Sativa)

Published online by Cambridge University Press:  03 October 2008

D. N. Singh  and
A. Bhattacharya
D. N. Singh
Affiliation:
I.A.R.I. Regional Research Station, Kalianpur, Kanpur (U.P.), India
A. Bhattacharya
Affiliation:
I.A.R.I. Regional Research Station, Kalianpur, Kanpur (U.P.), India
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Summary

Optimum transplanting age and relative growth rate in three groups of rice varieties differed with types and maturity periods. Transplanting 52 day old seedlings reduced the shoot number, and the magnitude of reduction was higher in early than in mid-early and medium varieties. Early transplanting reduced the number of days to flowering in all three groups compared with transplanting later. Senescence was much earlier in early types transplated as 52 day old seedlings. Grain production in early types was more sensitive to late transplanting than the mid-early and medium types. Medium varieties outyielded the early and mid-early ones when transplanted at 38 days after seeding.

Type
Research Article
Information
Experimental Agriculture , Volume 11 , Issue 1 , January 1975 , pp. 65 - 74
Copyright
Copyright © Cambridge University Press 1975

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