Haricot Bean (Phaseolus vulgaris L.) Varieties Growth Analysis at Hawassa University, Ethiopia

Abstract

A field experiment was conducted with haricot bean varieties and were planted for growth analysis in 2018 before cropping season at Hawassa University, It geographically  located at 07⁰3'N and 38028'E, and at 1708 masl. Maximum and minimum daily temperature was 27 and 13^oc respectively. This experiment used RCB design with 4 replications and 3 Haricot bean varieties Ibado, Omo-95 and Red Wolayita. The plot area was 2m×2 m and was planted with 5 rows. The primary data for growth analysis were collected twice; such as leaf area, stem weight, leaf weight and total weight.  SLA, LAR, NAR and RGR were analyzed. Ibado and Omo-95 varieties are the highest and least in leaf area ratio accounts 200.98 (cm²g^-1), 171.57 (cm²g^-1) respectively at 1^st sampling but at second sampling Ibado becomes the least, Red Wolayita scores higher in leaf area ratio 162.17(cm²g^-1). On the other hand from first sampling Ibado take the pick position in specific leaf area 312.46 (cm²g^-1) and the least was Red Wolayita. But from second sampling Omo- 95 takes the higher position with 340.65(cm²g^-1) and Ibado was the least with 300.85(cm²g^-1) in specific leaf area. Red Wolayita relatively grows higher 72.81 (mgg^-1day^-1) than Omo-95 and Ibado varieties. And also by their net assimilation rate (NAR) go similarly like that of relative growth rate (RGR) Red Wolayita  43.55(mgdm^-2day^-1) was higher in sink from sources. All tested parameters from ANOVA tables are not significantly different.

Keywords: Specific Leaf Area, Leaf Area Ratio, Relative Growth Rate and Net Assimilation Rat