| Interactions are likely to occur between climate variables which could induce a number of concurrent imbalances between the plants' sink and source. The objectives of this dissertation were to investigate the interactive impact of three major climate factors compounded with biological factors on the photosynthesis and respiratory systems of cotton plant and how these relate to growth, productivity and fiber qualities.;A field study was conducted at USDA Beltsville Agricultural Research Center during 1992 on two Upland cotton (Gossypium hirsutum L.) cultivars, Deltapine 50 and 90 (DP50, and 90) grown in open-top chambers and subjected to eight treatments (2 x 2 x 2) combinations involving soil moisture, CO;The interactive effects at two- and three-way levels significantly affected some plant characteristics. Leaf senescence at later growth stage was noticed for W + NF air treatment. High CO;The three-way interactive effects had significant impacts on PS, TR, leaves per plant, seeds per boll, and fiber length. The availability of soil moisture and high CO... |
