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Control Number56642
Date and Time of Latest Transaction20060619142212.7
General Information060619s |||||||||b ||00|||
Cataloging SourcePCARRD-DOST
Main Entry - Personal NameManuel, Leonila
Main Entry - Uniform TitleENGLISH
Title StatementPhysiological technique for mazimizing cotton productivity. I. Use of hormones in increasing the number of flower set
General NoteBatac, Ilocos Norte: CRDI, 1980. pp. 265-276. -(Annual Technical Report Crop Year 1979-80; Vol. 2)
Summary, Etc.Three hormones (25, 50, 100, and 200 ppm gibberellic acid, ascorbic acid, and cycocel) under three levels of fertilizer rates (0, 75-25-25, and 150-25-25 kg NPK/ha) were evaluated to determine their effects on flower setting and seedcotton yield. Fertilized plants generally had more flowers, bigger bolls and higher yield. The application of hormones did not affect the number of flower set and boll weight. However, significant differences were observed on the number of bolls per plant and percent boll retention. Highest average number of bolls was obtained in plants treated with ascorbic acid at a concentration of 200 ppm applied before flowering and cycocel at 25 ppm applied at flowering, with 7.62 bolls/plant. Hormones in combination with fertilizer application had a significant effect on seedcotton yield and percent boll retention. Plants fertilized with 75-25-25 kg NPK/ha treated with 50 ppm ascorbic acid applied at flowering gave the highest percent boll retention (69.20%). Plants treated with 200 ppm ascorbic acid before flowering and fertilized with 150-25-25 kg NPK/ha gave the highest seedcotton yield of 4.72 t/ha
Subject Added Entry - Topical TermGOSSYPIUM
 INDUCED FLOWERING
 FERTILIZER APPLICATION
 HORMONES
 NPK FERTILIZERS
Added Entry - Personal NameCabangbang, Rodolfo P.
 Orpia, Eugenio Jr. D.
 Cosico, Victoria B.
LocationDOST PCARRD
  
     
 
Physical Location
Department of Science and Technology
Philippine Council for Agriculture, Forestry and Natural Resources Research and Development
  
     
 
Digital Copy
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