草业科学2012，Vol.29Issue(5)：768-774,7.
MT-1象草新品系与Mott矮象草形态特征及产量性状的比较
Comparison of morphological and productive characteristics between MT-1 elephant grass and Mott elephant grass
摘要
Abstract
Mort elephant grass （Pennisetum purpureum cv. Mott） is a kind of valuable forage in south Chi- na. In order to evaluate productivity of MT-1 elephant grass （P. purpureum cv. MT-1）, bred from Mort population, comparative analysis between MT-1 elephant grass and Mott elephant grass on morphological characters, modular and bunch biomass during vegetative and reproductive growth periods were conducted from 2007 to 2009. The results indicated that the plant height and clump diameter of MT-1 were significantly higher than those of Mott （P〈0.01）, and the tiller number of Mort was a little more than that of MT-1. The leaf biomass （in vegetative period）, dead leaf biomass, culm biomass, inflorescence biomass and ramet biomass of MT-1 were significantly higher than those of Mort （P〈0.01）. However, the leaf to eulm ratio of Mott was significantly higher than that of MT-1 （P〈0.01）. The bunch biomass of MT-1 in vegetative and reproductive growth periods, were 1. 42-1. 84 times and 1. 07 1. 87 times of Mott, respectively. The annual biomass of MT-1 ranged from 31 246.50 to 48 838.60 kg·hm-2, while that of Mott just ranged from 18 201.70 to 36 306.60 kg·hm-1. In summary, the productivity of MT-1 was better than that of Mott according to the outstanding biomass yield.关键词
MT-1象草/Mott象草/形态特征/构件生物量/株丛产量Key words
MT-1 elephant grass/Mott elephant grass/morphological characteristics/modular biomass/bunch biomass分类
农业科技引用本文复制引用
李有涵,唐然,朱琼华,卢小良,解新明..MT-1象草新品系与Mott矮象草形态特征及产量性状的比较[J].草业科学,2012,29(5):768-774,7.基金项目
国家自然科学基金 （）
