The growth trend of seed of varieties of wheat

Subject Areas : Journal of Plant Ecophysiology

ali ahmadi ¹ , T. Hoseinpor ² , فریبا محمدی ³ , R. Porghasemi ⁴

1 - محقق بخش تحقیقات اصلاح و تهیه نهال و بذر، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی لرستان، سازمان تحقیقات، آموزش و ترویج کشاورزی، خرم آباد، ایران
2 - استادیار پژوهش، بخش تحقیقات اصلاح و تهیه نهال و بذر، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی لرستان، سازمان تحقیقات، آموزش و ترویج کشاورزی، خرم آباد، ایران
3 - کارشناس ارشد سازمان جهاد کشاورزی اندیمشک
4 - دانشجوی سابق کارشناسی ارشد اگرواکولوژی زابل، زابل، ایران

Received: 2015-07-28 Accepted : 2015-11-04 Published : 2017-05-22

Keywords: Wheat, planting date, Genotype, Filling rate,

Abstract :

Grain weight and grain yield components of the velocity and duration of filling them. Understanding the process of grain filling in wheat breeding programs may be used to increase the yield of cultivars helpful. In order to evaluate the effect of seed density on the growth of wheat grain, a factorial experiment in a randomized complete block design with three varieties of wheat (Koohdasht, Chamran and Zagros) and seed densities (100, 200, 300 400 and 500 seeds per square meter) was conducted at the agricultural Research Station in Khorramabad. Components for grain growth after pollination eight sampling intervals of five days, grain dry weight was measured. The results showed that grain yield, biological yield, straw yield and number of ears per square meter and highly significant positive correlation, negative correlation with seed weight and hectoliter weight but very significant and the number of grains per spike, and for high-speed grain non-significant negative correlation. The dry weight of grain every three varieties showed that the dry weight of the grain density of 300 seeds per square meter Koohdasht and lowest grain yield was related to the number density of 200 seeds per square meter