青藏高原地区的光质对高原春小麦生长发育、光合速率和干物质含量影响的研究

本文模拟研究了高原地区的不同光质对春小麦的生长发育、光合速率和干物质含量等方面的影响。实验结果表明:(1)蓝光和蓝紫光的照射能使春小麦植株趋于矮壮。提高总叶绿素含量,增加叶绿素b值,并能延迟春小麦的生育期和干物质积累的时间。(2)红光和蓝紫光对春小麦品种的光合速率都比对照有提高效应,其中红光最显著,蓝紫光次之,而蓝光下最低。(3)红光和蓝紫光下积累的干物质含量均大于对照,蓝光下的较低。从而论证了青藏高原地区较好的光质,尤其丰富的蓝紫光是高原春小麦屡出高产的重要生态因素之一。为在这一地区充分利用这一得天独厚的有利条件挖掘更大的高产潜力提供了科学依据。

THE EFFECT OF LIGHT QUALITY ON GROWTH, PHOTOSYNTHESIS AND CONTENT OF DRY MATTER OF PLATEAU SPRING WHEAT IN QINGHAI-XIZANG PLATEAU

This paper reports the effect of light quality on the plateau on the growth, photosynthesis and content of dry matter of spring wheat in the plateau. The result of the experiment indicates that:1. Blue light and blue purple light can make wheat stems short and strong, raise the total amount of chlorophyll, increase chlorophyll and delay the accumulation of dry matter of spring wheat and its growth.2. Red light and blue purple light have accelerating effects on the photosynthesis of three kinds of spring whe...