Pelita Perkebunan
Vol 35 No 3 (2019)

Seedling Performance of Cocoa Genotypes (Theobroma cacao L.) in Drought Stress Condition.

Agung Wahyu Susilo (ICCRI)
Sobir Sobir (IPB University)
Adinda Wuriandani (IPB University)
Desta Wirnas (IPB University)



Article Info

Publish Date
31 Dec 2019

Abstract

Drought stress can affect changes in physiological, morphological, biochemical,and molecular of plant. Plant in drought stress showed slower growthand development than in normal condition. This research aimed to determine the response of cocoa genotypes in seedling phase to drought stress in morphological and stomata character. This research conducted with split-plot design with main plot were water regimes (25% and 100% available water content). Eleven genotypes were used in this research consisted of six genotypes crosses and five genotypes parents. Variables observed were stem diameter, root volume, root length, leaf area, shoot fresh weight, root fresh weight, shoot dry weight, root dry weight, root/shoot ratio, and stomatal conductance. Drought stress decreased values associated with all observed morphological characters and stomata characters. Root/shoot ratio and stomatal conductance can be used to determine genotype with tolerance to drought. Sulawesi 3 x ICCRI 09 showed heighest in root/shoot ratio and stomatal conductance. Sulawesi 3 x ICCRI 09 can be used as candidate of plant material tolerant to drought.

Copyrights © 2019






Journal Info

Abbrev

ccrj

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

Pelita Perkebunan, Coffee and Cocoa Research Journal (CCRJ): ISSN:0215-0212 Since its establishment in 1911, Indonesian Coffee and Cocoa Research Institute (ICCRI) formerly Besoekisch Proefstation, had published its research findings through a journal call Mededelingen van het Besoekisch ...