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农学学报 ›› 2015, Vol. 5 ›› Issue (9): 27-30.doi: 10.11923/j.issn.2095-4050.cjas15020016

所属专题: 小麦

• 农艺科学 生理生化 • 上一篇    下一篇

一种小麦穗粒数测定方法

亢秀丽,马爱平,靖 华,王裕智,崔欢虎,郑彩萍   

  1. 山西省农业科学院小麦研究所,山西省农业科学院小麦研究所,山西省农业科学院小麦研究所,山西省农业科学院小麦研究所,山西省农业科学院小麦研究所,山西省农业科学院小麦研究所
  • 收稿日期:2015-02-23 修回日期:2015-04-09 接受日期:2015-04-22 出版日期:2015-09-28 发布日期:2015-09-28
  • 通讯作者: 亢秀丽 E-mail:kxiuli03@163.com
  • 基金资助:
    国家星火项目“旱地小麦高产抗逆调控集成技术示范与推广”(2012GA630003-3)。

A Determination Method of Grain Number of a Spike of Wheat

  • Received:2015-02-23 Revised:2015-04-09 Accepted:2015-04-22 Online:2015-09-28 Published:2015-09-28

摘要: [目的]研究旨在准确测定小麦穗粒数,为制定高产技术方案和总结高产经验提供技术支撑。[方法]用大田试验方法进行了小麦穗粒数测定方法的探讨。[结果]结果表明,新的穗粒数测定方法,在不同产量群体麦田中,其取样率可较传统方法提高约4倍,可相对提高准确率。其具体方法为:在测定麦田中,选取具有代表性的样点多个,在每个样点(面积1平方米)内连续取样本≥100穗,并装入网袋记录相关内容;烘干样本,对每个样本脱粒称重,在样本籽粒中随机数取一定数量的籽粒≥3份,作为每个样本穗粒数的重复并计数;依据每个重复的粒数对应的重量与样本重量换算出样本的总粒数,再用样本的总粒数除以样本穗数测得每个重复对应的样本穗粒数;将每个重复对应的样本穗粒数相加除以重复数则得到每个样本的穗粒数;将每个样本的穗粒数相加除以样点数量则得到取样麦田的穗粒数。[结论]新的测定方法有效提高了样本取样率,可较好反映不同群体麦田的穗粒数;有效解决了传统方法由于遗传、栽培及环境因素造成穗部不整齐而形成的误差。

关键词: 氨基酸, 氨基酸, 彩色小麦, 近等基因系, 营养评价, 人类营养

Abstract: [Objective][Method]The study aimed at accurately determining grain number of a spike of wheat in order to provide better technical support to accurately establish technique scheme and summarize experience for high yield, and it was explored by field test. [Result] The results showed that, new method could improve 4 times sample rate, and enhance data accuracy compared to traditional method. Its concrete steps included: in measured wheat field, We selected representative multiple sampling points, and took continuous spike(≥100 number)in every sample point(1m2), and recorded related contents placing in mesh nylon bag;Dried sample and weighed grain, and randomly selected ≥3 portions as repeat number of grain number of a spike; Calculated total grain numbers of sample by sample weight and weight of number every repeat, and sample total grain numbers divided by sample spike numbers obtained grain number of a spike of every repeat; The mean of grain number of a spike of all repeats was grain number of a spike of every sample; The mean of grain number of a spike of all samples was grain number of a spike of sampled wheat. [Conclusion]The new determination method effectively improved sample rate, and more accurately reflected grain number of a spike of wheat in different field. It could effectively reduce error due to heredity, cultivation and environment factors compared to traditional method.