| 不同施肥处理对春小麦穗粒数的影响——Ⅰ.营养体发育状况与小花两极分化的关系 |
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| 引用本文： | 王思远.不同施肥处理对春小麦穗粒数的影响——Ⅰ.营养体发育状况与小花两极分化的关系[J].吉林农业大学学报,1988(1). |
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| 作者姓名： | 王思远 |
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| 作者单位： | 吉林农业大学作物栽培教研室 |
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| 摘 要： | 本文研究了不同施肥处理对春小麦营养体发育状况的影响及其与小花发育和结实的关系。结果表明,种肥加三叶肥处理能使小麦植株良好发育,有利于小花的分化和发育,小花高峰值出现于药隔期至减数分裂期。在生育中后期植株不过旺、不早衰,成花率高达40.4％。特别是生育后期,由于营养体生长良好,向穗部供应同化产物充足,结实率达74.6％。不仅有较高的成花率,而且有较高的结实率。因此,重施种肥,适当追施三叶肥是春小麦增加穗粒数,提高产量的有效措施。
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| 关 键 词： | 小花两极分化 结实率 穗粒数 种肥 |
THE EFFECT OF FERTILIZER ON GRAIN NUMBER OF PER EAR OF SPRING WHEAT I. THE RELATIONSHIP BETWEEN VEGETATIVE GROWTH AND DEVELOPMENT AND DEGENERATION OF FLORET |
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| Wang Siyuan.THE EFFECT OF FERTILIZER ON GRAIN NUMBER OF PER EAR OF SPRING WHEAT I. THE RELATIONSHIP BETWEEN VEGETATIVE GROWTH AND DEVELOPMENT AND DEGENERATION OF FLORET[J].Journal of Jilin Agricultural University,1988(1). |
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| Authors: | Wang Siyuan |
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| Institution: | Wang Siyuan |
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| Abstract: | The effoct of of fertilizer on vegetative growth,and the relationship between vegetative growth,floret development and seed setting percentages is carried out in the test. The results show that early seeding fertilizer and 3-leaf stage fertilizer enhance seeding growth vigourly and are good for floret differentiation and development. The "peak" of floret number per spike is in meiosis stage. The plants are not over vigrous or early senescence, and supply abundant assimilate for spike. The rate of formative floret and seed-setting are incraesed,so it has the most grain per spike. It is concluded that early fertilizer at seeding and 3-leaf stage is one of the important practices for increasing grain number per ear in local spring wheat production. |
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| Keywords: | polarization development rate of seed setting fertilizer |
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