The Effect of planting date on growth and yield of five potato varieties Solanum tuberosum L.
AbstractThe experiment was conducted in the field of Agriculture college _Baghdad University, Abu Ghraib. Alternation location for Anbar University during spring season 2016. The objective was to evaluation of five varieties performance of potato Solanum tubeorosum L (Volare, Arizona, Hermes, Riviera, Arnova) imported recently seeds of elite rank. The study was done as a factorial experiment based on randomized complete block design with three replicates (R.C.B.D) under effect of three punting dates (15 december,1 January,15 January ) the field experiment was divided into three blocks with 15 treatments randomly distributed and thus there were 45 experimental units. Within R.C.B.D the plants of (Volare) growing in first date were significant superiority in, plant height, number of stems per plant, dry weight of vegetative and leaf area, with 81.76 cm plant-1, 2.733 stem plant-1, 203.5 gm, 49.08 dm2) respectively. The plant of (Volare) growing in fittest date were surpassed in most of yield traits as tuber weight average, plant yield, marketable yields and total yields, with 242.0 gm, 1801.7 gm plant-1, 96.209 ton ha-1, 97.341 ton ha-1, respectively. The plants of (Arizona) growing in first date were significant superiority in characters of yield quality as dry weight percent , starch percent ,specific gravity, protein percent and T.S.S, with 17.67%, 19.67% , 2.068 gm.(cm3)-1, 8.76% , 7.987%, respectively.
- evaluation --- varieties --- performance --- potato --- Solanum tubeorosum L --- punting dates
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