Development and release in the Philippines of Sweetpotato variety 'NSIC Sp-31'

• Published in: Philippine Agricultural Scientist (Philippines) Vol. 92; no. 1
• Main Authors: Carpena, A.L, Manguiat, P.H, del Rosario, E.E, Lalusin, A.G, Gueco, L.S., Philippines Univ. Los Baños, College, Laguna (Philippines). Crop Science Cluster-Inst. of Plant Breeding, Reaño, C.E., Philippine Univ. Los Baños, College, Laguna (Philippines). Inst. of Statistics, Rodriguez, F.M, Quilloy, R.B., Philippines Univ. Los Baños, College, Laguna (Philippines). Crop Science Cluster-Inst. of Plant Breeding
• Format: Journal Article
• Language: English
• Published: 01.03.2009
• Subjects: AGRONOMIC CHARACTERS; CARACTERE AGRONOMIQUE; CARACTERISTICAS AGRONOMICAS; DRY SEASON; ESTACION HUMEDA; ESTACION SECA; EVALUACION; EVALUATION; FILIPINAS; GENOTIPOS; GENOTYPE; GENOTYPES; http://www.fao.org/aos/agrovoc#c_210; http://www.fao.org/aos/agrovoc#c_2400; http://www.fao.org/aos/agrovoc#c_2736; http://www.fao.org/aos/agrovoc#c_3225; http://www.fao.org/aos/agrovoc#c_3937; http://www.fao.org/aos/agrovoc#c_5783; http://www.fao.org/aos/agrovoc#c_8157; http://www.fao.org/aos/agrovoc#c_8368; IPOMOEA BATATAS; PHILIPPINES; SAISON HUMIDE; SAISON SECHE; VARIEDADES; VARIETE; VARIETIES; WET SEASON
• ISSN: 0031-7454

'NSIC Sp. 31' (Registry No. NSIC 2005 Sp 31) sweetpotato (Impmoea batatas (L.) Lam) variety is an offspring of the cross produced in 1999 at the Crop Science Cluster-Inst. of Plant Breeding, College of Agriculture, University of the Philippines Los Baños (CSC-IPB, CA, UPLB) between recommended local sweetpotato variety 'UPL Sp-3' and a registered Chinese variety Jinshan 1255, designated as Sg99-09-02. The genotype was evaluated from the 2001 wet season up to the 2004-2005 dry season, which included two seasons each of preliminary and general/advanced trials at UPLB and two seasons of regional trials in eight locations. NSIC Sp-31 has high root yield potential (17 t/ha), high root dry matter (33%) and starch (24%) contents, good eating quality and resistance to scab disease under field conditions. NSIC Sp-31 was officially approved for release by the National Seed Industry Council (NSIC) on 5 June 2006.