New Zealand Journal of Crop and Horticultural Science abstracts

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Phenological development of chickpeas (Cicer arietinum) in Canterbury, New Zealand

T. I. VERGHIS
B. A. MCKENZIE
G. D. HILL

Plant Sciences Group
Soil, Plant and Ecological Sciences Division
Lincoln University
Canterbury, New Zealand
email: mckenzie@lincoln.ac.nz

Abstract  The phenological development of one variety of chickpea (Cicer arietinum L. `Hernandez') was studied in Canterbury, New Zealand using eight sowing dates in 1992-93 (July and September), 1993-94 (July until November), and 1994-95 (October). The duration of all phases was predicted based on thermal time above 4deg.C. For emergence to flowering (E-F), photoperiod-corrected thermal time with a base photoperiod of 10 h was calculated, but thermal time gave a better relationship with flowering rate. The mean accumulated thermal times for the different phases were 133, 447, 761, and 377deg.C days for sowing to emergence (S-E), E-F, flowering to mature pod (F-MP), and mature pod to harvest maturity (MP-HM) respectively. An accurate prediction of time to flowering was made based on an accumulated mean thermal time requirement of 447deg.C days from E to F. The relationship between the actual and predicted dates of flowering was highly significant (r² = 0.983), and data from an independent source fitted the model well.

Keywords  chickpea; Cicer arietinum; phenology; flowering; photothermal time; base temperature; base photoperiod

H98049
Received 12 October 1988; accepted 13 May 1999

PDF file of entire paper: medium quality (629K); (scanned from paper original: notes about this process)

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