Record Details

Potential and realized yield in pearl millet (Pennisetum americanum) as influenced by plant population density and life-cycle duration

OAR@ICRISAT

View Archive Info
 
 
Field Value
 
Relation http://oar.icrisat.org/4970/
http://dx.doi.org/10.1016/0378-4290(89)90093-2
 
Title Potential and realized yield in pearl millet (Pennisetum americanum) as influenced by plant population density and life-cycle duration
 
Creator Craufurd, P Q
Bidinger, F R
 
Subject Millets
 
Description A single hybrid of pearl millet, 841A×J104, was grown at four plant populations covering the range 2–20 plants m−2 under 13.5 or 15.5-h photoperiods during the vegetative phase (emergence to floral initiation) to effect a short (75-day) or long (90-day) crop duration, respectively. The effect of these treatments on tiller production, leaf-area production, dry-matter accumulation and grain-yield is described, and the relationship between radiation interception (Qi) during the phase from floral initiation to flowerng (GS2), and number of grains (yield potential) and grain-yield is examined.

The treatments caused significant variation in tiller and leaf-area production, radiation interception and numbers of grains per unit area at maturity. Number of grains, which ranged from 37 to 71×103 m−2, was correlated (r2=0.83) with intercepted radiation during GS2. Thus at high plant population in the long ncrop-duration treatment, where leaf area was highest during GS2, number of grains was greatest. Grain-yield less strongly correlated (r2=0.63) with intercepted radiation during GS2 because, in crops with many grains, grain-size was reduced. Possible reasons for reduced grain-size in crops with high yield-potential are discussed.
 
Publisher Elsevier
 
Date 1989
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/4970/1/FCR_22_211-225_1989.pdf
Craufurd, P Q and Bidinger, F R (1989) Potential and realized yield in pearl millet (Pennisetum americanum) as influenced by plant population density and life-cycle duration. Field Crops Research, 22 (3). pp. 211-225. ISSN 0378-4290