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Effect of production temperatures on the quantity and quality of green asparagus spears

机译：生产温度对生芦笋矛头数量和质量的影响

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摘要

The possibility of describing marketable yield variation in green asparagus from temperature patterns during production was investigated. Changes in the number, opening length, butt diameter and fresh weight of spears harvested from cv. Jersey Giantduring an 80-day period of field production were related to the mean air temperature in the 5 days prior to spear harvest. Marketable yield from Jersey Giant was related to the number and diameter of the spears produced. Spear opening length did not change significantly and changes in spear weight were due to changes in diameter. Spear numbers increased as temperatures increased during harvest but at a declining rate over time as crop production restraints increased. Spear diameter and weight declinedlinearly with time as temperatures and crop production restraints increased. Crop restraints on spear number, diameter and weight increased linearly with time as yield accumulated and production reserves declined. The time pattern of crop production restraints was considered to be related to temperatures through their past effects on the rate of yield accumulation. It was concluded that comparative descriptions of marketable yield could be derived from production temperature patterns by indexing the level of the crop's reserves in time to the proportion of the full season's temperature sum accumulated to date.
机译：研究了在生产过程中根据温度模式描述绿芦笋可销售的产量变化的可能性。从简历中收获的矛的数量，开口长度，对接直径和新鲜重量的变化。在80天田间生产期间，Jersey Giants与长矛收获前5天的平均气温有关。泽西巨人的可销售产量与生产的长矛的数量和直径有关。矛的开口长度没有明显变化，矛的重量变化是由于直径的变化。随着收获期温度的升高，矛头数量增加，但随着作物生产限制的增加，矛头数量随时间下降。随着温度和农作物生产限制的增加，矛的直径和重量随时间线性下降。随着产量的增加和产量的下降，作物对长矛数量，直径和重量的限制随着时间线性增加。作物生产限制的时间模式被认为与温度有关，因为它们过去对产量积累速率的影响。得出的结论是，可以通过将作物的储藏水平及时索引到迄今为止累计的整个季节温度总和的比例来从生产温度模式中得出可销售产量的比较描述。

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