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leaf orientation value叶向值
black chaff of rice黑谷
high stalk高杆
characteristics of canopy structure冠层结构特征
leaf blades of different levels within canopies冠层内不同层次的叶片
cultivation of rice high yield谷子高产栽培
Impacts Of Different Densities On Leaf Orientation Value Of Black Chaff Of Rice 9003-1
Abstract: In this test, with the variety of high stalk rice---black chaff of rice 9003-1 used as materials, characteristics of canopy structure of rice groups and leaf orientation values of leaf blades of different levels within canopies are investigated in order to provide theoretical basis for the cultivation of rice high yield. As for black chaff of rice 9003-1, when the density is 330,000 stalks/hm², the leaf orientation value is the largest, 19.11°, that is to say, leaf blades exceedingly grow upward with the density in 300,000 stalks/hm², with higher transmittance within groups. From the investigation above, it is proved that planting density which is suitable for black chaff of rice 9003-1 is 300,000 stalks/hm².
