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Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (15): 52-57.doi: 10.11924/j.issn.1000-6850.casb15010069

Special Issue: 油料作物

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Effect of Planting Patterns on the Growth and Development and Yield of Saline-alkali Land Peanut

  

  • Received:2015-01-12 Revised:2015-02-24 Accepted:2015-02-25 Online:2015-06-02 Published:2015-06-02

Abstract: A field experiment in moderate saline-alkali land was conducted to examine the effect of planting patterns on the growth and development and yield of peanut plant. Three peanut cultivars (lines) with different salt tolerance were used as materials. Ridged bed with plastic film mulch and furrow with plastic film mulch were designed as two planting patterns. The results showed that the main stem height and the length of branches in all three peanut cultivars (lines) grown in ridged bed with plastic film mulch were higher than those in furrow with plastic film mulch from pegging stage to maturing stage. Leaf, stem (stalk) and the aboveground dry mass were perfectly simulated with logistic equation and all correlation coefficients reached significant or extremely significant level, and the maximum R2 was 0.9976. The maximum growth rate (Vm) of leaves and stem (stalk) in salt-tolerant peanut cultivar grown in ridged bed increased up to 27.54%-41.04% and 12.2%-40.06%, respectively. The time (Tm) of the maximum growth rate of leaf postponed 2.3-3.3 days. For stem (stalk), the time (Tm) of the maximum growth rate occurred 1 day in advance. For salt sensitive cultivars grown in ridged bed, the Vm of leaves decreased 25.71%. The Tm of leaf occurred 1.4 day in advance and the Tm of stem (stalk) postponed 1.2 day. The peak of LAI of the three cultivars (lines) under two planting patterns occurred at the pod setting stage with salt-tolerant cultivar‘baisha 1016’grown in ridged bed up to 5.52 and the lowest LAI of 3.35 in sensitive cultivar HZ17. The yield of salt-tolerant cultivar‘baisha 1016’ under ridged bed was up to 3925.65 kg/hm2. The lowest yield was only 2486.7 kg/hm2 of salt-sensitive cultivar HZ17 under furrow. In conclusion, salt- tolerant cultivar‘baisha 1016’was more suitable for saline- alkali land cultivation with plastic film mulch on ridged bed. The salt tolerance ability of the cultivar was more important than the planting pattern.