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首页> 外文期刊>Range Management & Agroforestry >Morphology of diaspores of some range grasses of Punjab.
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Morphology of diaspores of some range grasses of Punjab.

机译：旁遮普邦一些草丛的水生孢子的形态。

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Subtropical vegetation coupled with agrarian land use accounts for predominance of grasses in Punjab. With cereal crops occupying most part of the agricultural lands, fodder crops get a marginal share resulting in shortage of fodder, particularily in the winter season. This shortage may be met through facilitated propagation of various grass species in the rangelands. After the initial success of growing guinea grass, Panicum maximum Jacq. in social forestry lands, the stage has been set for trying out propagation of other grass species viz. Brachiaria ramosa (L.) Stapf, B. reptans (L.) Gardner & Hubbard, Sorghum halepense (L.) Pers. etc. on a variety of soil and moisture conditions. In view of the expanding desert line in the state, these efforts are urgently required. Propagation to new areas may be brought about by vegetative means in caespitose and sod forming types, but in single culm and bunch grasses, amphimictic propagules contained in the diaspores (the dispersal units) provide the only method. Present studies have brought to light the diversity of structure and mechanism of dispersal of diaspores of about forty grass species in the area of study. This information may be utilized in devising strategies for facilitated propagation of these species in rangelands to boost fodder production in the state.
机译：亚热带植被与农业土地利用共同构成了旁遮普邦草丛的主要部分。由于谷物作物占据了大部分农业用地，饲料作物的份额很小，导致饲料短缺，特别是在冬季。可以通过在牧场上促进各种草种的繁殖来解决这一短缺问题。在几内亚草的初步成功种植之后，最大草香 Jacq。在社会林地中，已经为试验其他草种的繁殖奠定了阶段。 Brachiaria ramosa （L.）Stapf， B。 reptans （L.）Gardner＆Hubbard，高粱halepense （L.）Pers。等在各种土壤和水分条件下。鉴于该州沙漠线的扩大，迫切需要这些努力。可以通过营养的方式使植物繁殖成木贼和草皮，但在单茎和束草中，硬孢子（分散单位）中所含的两性繁殖体是唯一的方法。当前的研究揭示了该研究领域中大约四十种草种的水生孢子散布的结构和机制的多样性。该信息可用于设计策略，以促进这些物种在牧场中的繁殖，以提高该州的饲料产量。

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