Effect of Rosy Apple Aphid and Spirea Aphid (Homoptera: Aphididae) on Dry Matter Accumulation and Carbohydrate Concentration in Young Apple Trees

1989 ◽  
Vol 82 (2) ◽  
pp. 565-569 ◽  
Author(s):  
M. Varn ◽  
D. G. Pfeiffer
Keyword(s):  
Dry Matter ◽  
Dry Matter Accumulation ◽  
Apple Trees ◽  
Carbohydrate Concentration ◽  
Spirea Aphid ◽  
Young Apple

Effects of partial rootzone drying and rootstock vigour on dry matter partitioning of apple trees (Malus domesticacvar Pink Lady)

2011 ◽  
Vol 150 (1) ◽  
pp. 75-86 ◽  
Author(s):  
R. LO BIANCO ◽  
G. TALLUTO ◽  
V. FARINA
Keyword(s):  
Soil Moisture ◽  
Deficit Irrigation ◽  
Dry Matter ◽  
Field Capacity ◽  
Dry Matter Accumulation ◽  
Apple Trees ◽  
Dry Matter Partitioning ◽  
Use Efficiency ◽  
Partial Rootzone Drying ◽  
Conventional Irrigation

SUMMARYThe effects of partial rootzone drying (PRD) and rootstock vigour on dry matter accumulation and partitioning among leaves, shoots, fruits, frame and roots of apple trees (Malus domesticaBorkh. cvar Pink Lady) were investigated in 2005 near Caltavuturo, in Sicily. In a first field trial, trees on MM.106 rootstock were subjected to: conventional irrigation (CI), maintaining soil moisture above 0·80 of field capacity; PRD irrigation, where alternating sides of the rootzone received 0·50 of the CI irrigation water; and continuous deficit irrigation (DI), where 0·50 of the CI water was equally applied to both sides of the rootzone. In a second trial, trees on M.9 or MM.106 were subjected to CI and PRD irrigation. In trial 1, dry matter accumulation was markedly reduced by DI irrigation and to a lesser extent by PRD; PRD trees partitioned 20% less to leaves, 31% less to fruits and 24% more to woody components than CI trees; DI trees partitioned 14% less to current shoots and 18% more to fruits than CI and had the highest fruit:leaf ratio. In trial 2, there was no interaction between rootstock and irrigation treatments. MM.106 induced greater leaf, shoot, frame and root dry weights (DWs) than M.9, resulting in more vegetative growth and larger trees. PRD reduced leaf, shoot, frame and fruit DWs, while root DWs were similar to CI, and thus PRD trees were 18% smaller than CI trees. Neither rootstock nor irrigation affected dry matter partitioning among organs or root:canopy ratio, whereas PRD trees or trees on MM.106 showed better water use efficiency than CI and M.9, respectively. The results show that PRD trees did not activate drought tolerance strategies in terms of dry matter allocation that could improve acquisition of water resources, regardless of rootstock. PRD irrigation increased above-ground dry matter partitioning towards woody components at the expense of leaves and fruits.

scholarly journals The Influence of Rootstock on Characteristics of Tree Growth, Fruit Productivity and Dry Matter Production of ‘Maypole’ Young Apple Trees

2005 ◽  
Vol 4 (1) ◽  
pp. 41-46 ◽  
Author(s):  
Yuji Inomata ◽  
Kazunori Kudo ◽  
Masato Wada ◽  
Tetsuo Masuda ◽  
Hideo Bessho ◽  
...  
Keyword(s):  
Tree Growth ◽  
Dry Matter ◽  
Dry Matter Production ◽  
Apple Trees ◽  
Matter Production ◽  
Fruit Productivity ◽  
Young Apple

Characteristics of Dry Matter Accumulation and Effect of Fertilizer Application in Cassava

2013 ◽  
Vol 39 (1) ◽  
pp. 126
Author(s):  
Qiao-Yi HUANG ◽  
Shuan-Hu TANG ◽  
Jian-Sheng CHEN ◽  
Fa-Bao ZHANG ◽  
Kai-Zhi XIE ◽  
...  
Keyword(s):  
Dry Matter ◽  
Fertilizer Application ◽  
Dry Matter Accumulation

Photosynthetic Characteristics, Dry Matter Accumulation and Translocation, Grain Filling Parameter of Three Main Maize Varieties in Production

2018 ◽  
Vol 44 (3) ◽  
pp. 414 ◽  
Author(s):  
Tian-Jun XU ◽  
Tian-Fang LYU ◽  
Jiu-Ran ZHAO ◽  
Rong-Huan WANG ◽  
Chuan-Yong CHEN ◽  
...  
Keyword(s):  
Dry Matter ◽  
Grain Filling ◽  
Photosynthetic Characteristics ◽  
Dry Matter Accumulation ◽  
Maize Varieties
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