Volume 47 (2024)

Volume 46 (2023)

Volume 45 (2022)

Volume 44 (2021)

Volume 43 (2020)

Volume 42 (2019)

Volume 41 (2018)

Volume 40 (2017)

Volume 39 (2016)

Volume 38 (2015)

Volume 37 (2014)

Volume 36 (2013)

Volume 35 (2012)

Volume 34 (2011)

Volume 33 (2010)

Volume 32 (2009)

The evaluation of water deficit effect on grain yield and physiological characteristics of three canola (Brassica napus L.) cultivars

S.M. Hoseini; P. Hassibi; B. Andarzian

Volume 36, Issue 1 , June 2013, , Pages 13-24

Abstract

To investigate water deficit stress influence on stem elongation, flowering stage and some physiological characters of three canola (Brassica napus) cultivars including total ... Read More To investigate water deficit stress influence on stem elongation, flowering stage and some physiological characters of three canola (Brassica napus) cultivars including total dry matter, grain yield, total soluble sugars and starch, proline and osmotic potential this study was carried out in the green house of Shahid Chamran University of Ahvaz in 2008-2009 growing season. The experiment was factorial based on complete randomized design arrangement in three replications. The first factor comprised cultivars (including Hyola 308, Hyola 401 and RGS003) and the second factor was water deficit stress including water deficit in the early stem elongation to early-flowering stage (D1), early-flowering stage to early sac appearance (D2), early stem elongation to early sac appearance (D3) and normal irrigation conditions (D4). The results showed that the lowest and the highest reduction in shoot dry matter and grain yield was measured in Hyola 401 and Hyola308, respectively. The lowest shoot dry matter was in Hyola 308 (from the early stem elongation to early sac emergence stages) (22 grams per plant) and the highest shoot dry matter was in Hyola 401 (74 grams per plant) in normal conditions. In the stress conditions, shoot dry matter in all cultivars decreased. The amount of reduction during the flowering stage was more than early stem elongation stage showing more sensitivity of flowering stage to the stem elongation stage in water deficit stress. The interaction of water stress and variety showed significant differences in total soluble sugar, starch, proline, osmotic potential (P≤ 0.01), shoots dry matter and grain yield (P≤ 0.05). Furthermore, in the stress conditions participation in osmotic regulation process and reduction of negative effects of water deficit stress increased the amount of the total soluble sugars and proline of leaves. The lowest leaf osmotic potential (-2.23 Mpa) and the highest osmotic potential (-1.65 Mpa) were determined in Hyola 401, and Hyola 308 for D3 and D4 respectively. Decrease (become more negative) of osmotic potential because of more tolerance of Hyola 401 to water deficit stress was also assessed. According to the results of this study, Hyola 401, RGS003 and Hyola 308 were assessed for tolerance, semi tolerance and susceptibility to water deficit stress respectively.

Investigation in to Different Sowing Dates and Fertilization Methods (chemical and organic) on Yield and Yield Components of Milk Thistle (Silybum marianum L.)

S A; E F; A A

Volume 35, Issue 1 , June 2012, , Pages 129-143

Abstract

In order to study the effects of different sowing dates and Fertilization methods on yield and yield components of milk thistle (Silybum marianum L.) a field experiment was conducted ... Read More

The effect of nitrogen fertilizer rates and withheld irrigation stress on yield and yield components in different growth stages of oilseed rape

M A; M.J B

Volume 33, Issue 2 , March 2011, , Pages 15-30

Abstract

Oilseed rape (Brassica napus L.) is one of the most important oilseed crop which in recent years was attentioned, therefore; cultivation, production and its management in order to increase ... Read More

The study of adaptability of salt tolerant advanced barley (Hordeum vulgare) genotypes grown in moderate regions

M M; A Y; H.R N; Z R; A J

Volume 33, Issue 2 , March 2011, , Pages 31-39

Abstract

This study was to evaluate the adaptability of ten salt tolerant advanced barley in six regions (Esfahan, Kerman, Yazd, Ghom, Mashhad and Gonabad) in 2002-03. Statistical design was ... Read More

The Effect of Planting Dates and Different N-P-K Ratios on Grain Yield and N Use Efficiency in Wheat (Triticum aestivum L.) in Ahvaz

M V; A A; E F

Volume 33, Issue 1 , September 2010, , Pages 33-47

Abstract

To study the effect of different N-P-K levels and planting dates on wheat yield and N-use efficiency, a field experiment was conducted in Agricultural Faculty of Shahid Chamran University ... Read More

Plant Productions

Articles in Press

Current Issue

Volume 47 (2024)

Volume 46 (2023)

Volume 45 (2022)

Volume 44 (2021)

Volume 43 (2020)

Volume 42 (2019)

Volume 41 (2018)

Volume 40 (2017)

Volume 39 (2016)

Volume 38 (2015)

Volume 37 (2014)

Volume 36 (2013)

Volume 35 (2012)

Volume 34 (2011)

Volume 33 (2010)

Volume 32 (2009)

Keywords = Grain yield

The evaluation of water deficit effect on grain yield and physiological characteristics of three canola (Brassica napus L.) cultivars

Abstract

Investigation in to Different Sowing Dates and Fertilization Methods (chemical and organic) on Yield and Yield Components of Milk Thistle (Silybum marianum L.)

Abstract

The effect of nitrogen fertilizer rates and withheld irrigation stress on yield and yield components in different growth stages of oilseed rape

Abstract

The study of adaptability of salt tolerant advanced barley (Hordeum vulgare) genotypes grown in moderate regions

Abstract

The Effect of Planting Dates and Different N-P-K Ratios on Grain Yield and N Use Efficiency in Wheat (Triticum aestivum L.) in Ahvaz

Abstract