SEASONAL DIFFERENCES IN NONSTRUCTURAL CARBOHYDRATES IN 2 DIOECIOUS MONSOON-CLIMATE TREES

被引：25

作者：

BULLOCK, SH ^{[1
]}

机构：

[1] UNIV NACL AUTONOMA MEXICO, ESTAC BIOL CHAMELA, SAN PATRICIO 48980, JALISCO, MEXICO

来源：

BIOTROPICA | 1992年 / 24卷 / 02期

关键词：

JACARATIA; MEXICO; NONSTRUCTURAL CARBOHYDRATE; REPRODUCTIVE COST; SEASONALITY; SPONDIAS; TRANSLOCATION; TROPICAL DECIDUOUS FOREST;

D O I：

10.2307/2388667

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

In tropical deciduous forest in Mexico, Jacaratia mexicana (Caricaceae) and Spondias purpurea (Anacardiaceae) are dioecious, deciduous canopy trees that flower and mature fruits while leafless. The concentration of total nonstructural carbohydrate (TNC) in the lower trunk is not notably reduced by reproduction in either species, and is depleted by growth only in Jacaratia. Branch TNC in Jacaratia does not differ by season, sex, age, or activity, except that fruiting branches show higher concentrations. In Spondias, at leaf senescence the branches reach TNC concentrations similar to the trunk, and branch TNC depletion is similar between the sexes but greater for reproduction than growth.

引用

页码：140 / 145

页数：6

共 31 条

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