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Influence of temperature and soil drying on respiration of individual roots in citrus: integrating greenhouse observations into a predictive model for the field
In citrus, the majority of fine roots are distributed near the soil surface – a region where conditions are frequently dry and temperatures fluctuate considerably. To develop a better understanding…
Estimating age‐dependent costs and benefits of roots with contrasting life span: comparing apples and oranges
- T. Bouma, R. Yanai, Adrienne D. Elkin, U. Hartmond, Dora E. Flores-Alva, D. Eissenstat
- Environmental Science
- 1 June 2001
It is found that respiration rates and P uptake capacity change with root age in a species-specific way; and soil characteristics that determine the rate of nutrient depletion in the rhizosphere are as important as changes in root physiology in determining the age at which a root reaches its maximum efficiency.
Physiological Factors Affecting Response of Mature `Valencia' Orange Fruit to CMN-Pyrazole. II. Endogenous Concentrations of Indole-3-Acetic Acid, Abscisic Acid, and Ethylene
The data suggest the balance between IAA and ABA in the fruit abscission zone may be an important factor in determining sensitivity and thereby the response of mature 'Valencia' orange fruit to abscissions chemicals.
EFFECTS OF GIBBERELLIC ACID ON RIPENING AND RIND PUFFING IN SUNBURST MANDARIN
The har vest season could be extended from November-December into November, and the loss of juice in mature fruits in GA?- treated fruits was retarded.
ORANGE REMOVAL WITH TRUNK SHAKERS AND ABSCISSION CHEMICALS
Trunk shake-catch systems have been used commercially to a limited extent to mechanically harvest Florida oranges for processing for the past four seasons. In most cases, oranges left on the trees…
Pyridine Nucleotide Charge Reduces Photosynthesis under Short-term Oxygen Deficiency
Soil flooding reduces partial pressure of oxygen (pO 2) in the root zone and often results in a reduction in photosynthesis and growth. In greenhouse studies, rooted stem cuttings of the mango (…
Methyl jasmonate and CMN-pyrazole applied alone and in combination can cause mature orange abscission
Acetolactate synthase inhibitors increase ethylene production and cause fruit drop in citrus
The abscission action of two sulfonylureas and one imidazolinone was evaluated in laboratory studies with harvested orange ( Citrus sinensis L. cv. Valencia) fruit and greenhouse studies with orange…
Sources of Variation in Shelling Percentage in Peanut Germplasm and Crop Improvement for Calcium Deficiency-Prone Soils
Assuming that the lines tested typified peanuts for their relation between attributes and Ca deficiency-based shelling percentage variations, breeders should place the greatest emphasis on small pod size to decrease peanut sensitivity to Ca deficiency.
Factors influencing the effectiveness of ethephon As a citrus fruit abscission agent
[Citrus sinensis (L.) Osb.] orange trees in five separate exper iments and in two experiments using 'Robinson' ('Clementine' x 'Orlando', C. reticulata Blanco) and 'Sunburst' ['Robinson' x 'Osceola',…