Age, time of harvest and environment as factors influencing differences in yield between flowering and vegetative canes
Code (CO)MSI99P0416
Author (AU)Julien, M. H. R.
Delaveau, P. H.
Soopramanien, G. C.
Martiné, J. F.
Title - English (ET)Age, time of harvest and environment as factors influencing differences in yield between flowering and vegetative canes
Document Type(DT)Periodical article
Date of publication (DP)1978
Series (SE)Proc. int. Soc. Sug. Cane Technol.
Source (SO)16: 1771-1790
Language of text (LT)En
Language of summaries (LS)En
Es
Abstract (AB)Growth, yield,dry matter accumulation and partitioning were compared in flowering (CF), naturally vegetative (CV) and photoperiodically induced vegetative canes (Vp) of 3 ages grown in two environments. Time of harvest is the most important factor affecting differences in yield between flowering and vegetative shoots, environment plays also an important role whereas the effect of age of crop is negligible. Differences at the time of anthesis were primarily attributed to an increased rate of development in flowering shoots which is associated with floral development. Differences at subsequent harvest dates were related to the development of side shoots on the flowering canes. The proportional mean of CF and CV canes (CT) had similar sugar yield to Vp canes early in the season but lower yields later. This was primarily due to slow growth rate of the naturally vegetative canes from the time anthesis would have normally occurred to final harvest. CF canes accumulated similar amounts of dry matter and sucrose during that period to Vp canes at Réduit but lower amounts at Belle Rive. This difference between the two environments has been related to the rate of development of side shoots; these having lower number of leaves, leaf area and leaf area ratio at Belle Rive which enjoys a cooler climate and lower incoming radiation than Réduit.
Descriptors - English (DE)SUGARCANE
DEVELOPMENT
FLOWERING
ENVIRONMENTAL FACTORS
PHYSIOLOGY
YIELDS
Descriptors - Geographic (DG)MAURITIUS
Sort Key 1(K1)Sugarcane: Physiology
Sort Key 2 (K2)Yield physiology
Date record entered (DA)1992-02-23
Language of analysis (LA)En
Location (LO)LIB
Processing status (PS)CAT
MSIRI Staff (MS)BOT