Yield Components and Pod Quality of Snap Beans Grown under Differential Irrigation
| Autor: | A. Richard Bonanno, Harry J. Mack |
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| Rok vydání: | 1983 |
| Předmět: | |
| Zdroj: | Journal of the American Society for Horticultural Science. 108:832-836 |
| ISSN: | 2327-9788 0003-1062 |
| DOI: | 10.21273/jashs.108.5.832 |
| Popis: | Field experiments were conducted to evaluate the effects of differential irrigation treatments on the yield and pod quality of ‘Oregon 1604’ and ‘Galamor’ snap beans (Phaseolus vulgaris L.) in 1981 and 1982. Treatments in which various levels of positive canopy minus air temperature differences [stress-degree-days (SDD)] accumulated between irrigations were evaluated along with irrigation at 4 growth stages, a dry treatment which received only one irrigation to establish plants, and a control treatment irrigated at -0.06 MPa soil water potential (SWP). In both seasons, yield was related strongly to the average soil water potential from planting to harvest. Yields in 1982 were at least 5 MT/ha greater at a given average soil water potential than in 1981. Yields of ‘Oregon 1604’ and ‘Galamor’ were similar under adequate irrigation, but under greatest water stress, yield of ‘Oregon 1604’ was higher than for ‘Galamor’. Pod number was reduced only in the dry treatment. Percentage of set pods, pod length, and number of seeds per pod were all reduced by low irrigation, while fiber content of pods and weight per seed were increased by low irrigation. |
| Databáze: | OpenAIRE |
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