PATH-ANALYSIS ON THE YIELD COMPONENTS OF GENOTYPES OF RICE IN THE STATE OF RIO-GRANDE-DO-SUL

Authors
ZAFFARONI E TERRES AL BEVILAQUA GAP ROBAINA AD DELIMA D FILHO PMD LOPES R
Citation
E. Zaffaroni et al., PATH-ANALYSIS ON THE YIELD COMPONENTS OF GENOTYPES OF RICE IN THE STATE OF RIO-GRANDE-DO-SUL, Pesquisa agropecuaria brasileira, 33(1), 1998, pp. 43-48
Citations number
15
Categorie Soggetti
Agriculture,"Agriculture Dairy & AnumalScience
Journal title
Pesquisa agropecuaria brasileira → ACNP
ISSN journal
0100204X
Volume
33
Issue
1
Year of publication
1998
Pages
43 - 48
Database
ISI
SICI code
0100-204X(1998)33:1<43:POTYCO>2.0.ZU;2-C
Abstract
The purpose of this study was to evaluate the yield of rice genotypes and verify the yield component influence through path coefficient anal ysis. Nine rice genotypes were cultivated in experimental field in the 1993/94 growing season. The genotypes EMBRAPA 39-AGRISUL, TF296-1-8, CL Selecao 447B-B, CL99-40-2, CL78-84-1M-26M-M, TF231-13-1M-5-B, EMBRA PA 6-CHUI, EMBRAPA 7-TAIM e IRGA 410 were studied in this work. The fo llowing parameters were analyzed: plant number/ha, panicle number/plan t, grain number/panicle and grain weight and crop yield. The genotypes that showed superior behavior were CL78-84-1M-26M-M, EMBRAPA 6-CHUI a nd IRGA 410. Number of grain per panicle and thousand grain weight wer e the yield components which had highest effect on yield.