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首页> 外文期刊>Proceedings of the New Zealand Grassland Association >Seasonal patterns of root, tiller and leaf production in a Grasslands Ruanui ryegrass sward.
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Seasonal patterns of root, tiller and leaf production in a Grasslands Ruanui ryegrass sward.

机译：草原阮桂黑麦草草地的根，分till和叶片生产的季节性模式。

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摘要

In a perennial ryegrass (Lolium perenne) cv. Grasslands Ruanui sward at Palmerston North, root mass, root appearance, tiller population density, tiller appearance and death rates, and leaf extension and leaf appearance rates were measured at 2-monthly intervals over a 12-month period, commencing November 1988. Tiller appearance was lowest in November, but was also low in May, increasing to a peak in August. Root appearance showed a pronounced peak in August. Leaf extension and leaf appearance rateswere low during the period of high root and tiller formation in August, but high in November when tiller and root formation were low, suggesting co-ordination of these processes, with sequential activation of tillering, root formation and leaf formationactivity in winter. Principal component analysis to gain an objective overview of these data indicated a primary peak of activity in August (spring), and a secondary peak in March (autumn). The seasonal patterns observed for Grasslands Ruanui appear tobe different from those reported in the literature for ryegrass cv. Ellett and Grasslands Nui.
机译：在多年生黑麦草（Lolium perenne）中。从1988年11月开始，在12个月内每隔2个月测量一次根部质量，根部外观，分till种群密度，分er外观和死亡率以及叶片伸展和叶片出现率。 11月最低，但5月也最低，8月达到峰值。根的外观在八月出现一个明显的高峰。在8月高根和分er形成期间，叶片延伸和叶片出现率较低，而在11月高分er和根形成较低时，叶片延伸和叶片出现率较高，表明这些过程相互协调，分with，根形成和叶形成活性依次激活在冬季。为了获得这些数据的客观概览而进行的主成分分析表明，八月是春季的主要活动高峰（春季），三月是秋季的次要活动高峰（秋季）。观察到的草原阮努的季节模式似乎与文献中关于黑麦草简历的报道有所不同。埃莱特和草原努伊。

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