Premium
Vegetative and Reproductive Development of Virginia‐Type Peanut Varieties in Different Stand Densities 1
Author(s) -
Cahaner A.,
Ashri A.
Publication year - 1974
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1974.0011183x001400030022x
Subject(s) - biology , point of delivery , habit , arachis hypogaea , vegetative reproduction , yield (engineering) , dry weight , horticulture , indeterminate growth , growing season , agronomy , botany , crop , psychology , materials science , metallurgy , psychotherapist , ideotype
The yield and reproductive and vegetative development of four Virginia‐type varieties of peanuts ( Arachis hypogaea L.) differing in growth habit and plant size were tested under standard, medium, and high densities. The following parameters were studied in biweekly intervals during the season: plant size and dry weight; length of main branches and degree of branching; number and dry weight of pegs and pods at four maturity stages; and final yield and quality of mature pods. Despite the size and growth habit differences between the varieties, there were no significant density ✕ variety interactions. Increased stand density led to increased vegetative growth and more numerous reproductive organs at all maturity stages per unit area, but the yields of mature pods were equal in the three densities. Yield did not increase with density because crowding did not lead to earlier termination of pod setting. The presence of many maturing pods apparently arrested the maturation of a high proportion. Breeding and physiological research should be devoted to the production of varieties which terminate their pod setting early.