Number of seedlings per hill and ratooning ability of rice (Oryza sativa L.) [Philippines]
1985
Chauhan, J.S. | Lopez, F.S.S. | Vergara, B.S. (International Rice Research Inst., Los Banos, Laguna (Philippines). Plant Physiology Dept.)
In an experiment to study the effects of varying the number of seedlings in a main crop, on the plant stand and tiller regeneration of the ratoon crop, 20-day-old seedlings of rice variety IR44 were transplanted at 1, 2, 4, 6 and 8 seedlings per hill. Plant stand of the ratoon crop was better, and tiller regenerated earlier in the treatments with more seedlings per hill. Four seedlings per hill resulted in the highest ratoon grain yield. Number of seedlings per hill affected mainly the number of missing hills in the ratoon crop. This effect may account for the higher ratoon grain yields in the treatments with higher number of seedlings per hill
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