CZH15270

CZH15270 is a late-maturing, white-grain, high-yielding, drought-tolerant maize hybrid that is resistant to GLS, TLB, rust, and MSV, bred for food use in tropical, rainfed, dry/wet mid-altitude and transition ecologies in southern Africa and similar agroecologies.     General Information   Target region Southern Africa   Adaptation/Agroecological zone 400-1800 masl   Type of product Three-way cross hybrid   Year first announced 2017             Grain Characteristics Grain Yield   Grain color White Grain yield under HD (ME-A) 12.9 t/ha   Grain texture Semi-dent Grain yield under opt  (ME-A) 11.4 t/ha       Grain yield under opt (ME-B) 11.0 t/ha   Biotic Stress Performance Grain yield under opt (ME-C) 5.6 t/ha   Grey leaf spot (GLS) (1-9)* 1.3 Grain yield under opt (ME-D) 1.5 t/ha   Common rust (P. sorg) (1-9)* 3.3 Grain yield under MSV stress (ai) 8.0 t/ha   Turcicum leaf blight (TLB) (1-9)* 2.5 Grain yield under low N stress 2.6 t/ha   Ear rots 3.5%       *Diseases are scored on a 1-9 scale, where 1 = Highly resistant; 5 = Tolerant; 9 = Highly susceptible. Agronomic Characteristics   Maturity group Late       Days to 50% anthesis 68 days   Seed Production Characteristics Anthesis-silking interval 0.3 days   SC female parent yield 9.70 t/ha Plant height 276 cm   Male parent yield 2.90 t/ha Ear height 139 cm   Nicking -6.5 days Ears per plant 1.12   Height difference at flowering (SPEH-PPPH) -15.6 cm Bad husk cover 5.2%       Ear aspect (1-5)* 2.4   Comments Plant aspect (1-5)* 3.1   Product information is based on data from CIMMYT southern Africa 2017 regional trial (WLHYB17). Actual performance will vary depending on a number of agronomic and environmental factors.

Abbreviations:
GLS = Grey Leaf Spot
HD = high density (80,000 plants per ha)
low N = low soil nitrogen
masl = meters above sea level
ME-A = Maize mega-environment A (wet upper mid-altitudes)
ME-B = Maize mega-environment B (wet lower mid-altitudes)
ME-C = Maize mega-environment C (dry mid-altitudes)
ME-D = Maize mega-environment D (wet lowlands)
MSV = Maize Streak Virus
NUE = Nitrogen-Use Efficient
opt = optimum management conditions
PPPH = pollen parent plant height at flowering time
SPEH = seed parent ear height at flowering time
TLB = Turcicum Leaf Blight *Plant and ear aspects are scored on 1-5 scale, where 1 = desirable and 5 = undesirable characteristics           Further Links   1. Full Announcement & trial data summary     2. Maize Mega-Environments (map)