高产优质小麦豫麦62号形态及生理特点研究

为了对豫麦62号(周麦12号)小麦品种的优质、高产栽培技术提供理论依据,并为小麦超高产育种提供参考,以豫麦21、豫麦18为对照,对豫麦62号植株形态及生理特点进行了研究。结果表明,豫麦62与对服品种豫麦21和豫麦18相比,在越冬期及拔节期展开叶的叶夹角、叶向值较大,而在开花期上三叶叶夹角、叶向值变小;后期绿叶面积大,叶功能持续期长,叶绿素含量高且下降慢,可溶性糖含量高且灌菜后期下降快,说明豫走62具有良好的“动态株型”及“源强、流畅、库大”的形态及生理特点。

Study on the Morphological and Physiological Characteristics of the High Quality and High Yield Wheat Cultivar Yumai 62

In order to provide theoretical reference for the high quality and high yield cultivation techniques of Yumai 62 and for supper high yield breeding of wheat, the morphological and physiological characteristics of Yumai 62 were studied from 1999 to 2000. The results showed that compared with control cultivar Yumai 21 and Yumai 18, Yumai 62 had larger leaf, larger leaf included angle and leaf orientative value of the spreading leaves in winter-growing and jointing stage, but in flowering stage all of these characters of the three leaves from the top became smaller than the control. During the late developmental stage, the new cultivar had larger green leaf areas and longer leaf function duration, and more chlorophyll content and descented slowly and more soluble sugar and descented fast. The results indicated that Yumai 62 had the fine morphological and physiological characteristics with "transforming plant shape" and "strong source, fine transportation, large sink".