حمید نجف نژاد Articles List

List of Articles حمید نجف نژاد

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1 - Evaluation of yield and yield components of grain corn under the influence of planting date and hybrid in winter cultivation
Hamid Najafikjad Mohammad Ali Javaheri seyed zabi Ravari
20.1001.1.20085958.1396.9.29.11.3

In Orzoiyeh region, water deficit is the most important environmental stress limiting plant growth and production. A field experiment was conducted over two years 2010-2011 in Orzoiyeh Research Station to determine the most suitable of planting date and hybrid for winte More

In Orzoiyeh region, water deficit is the most important environmental stress limiting plant growth and production. A field experiment was conducted over two years 2010-2011 in Orzoiyeh Research Station to determine the most suitable of planting date and hybrid for winter cultivation of corn . This study was conducted as a split- plot in randomized complete block design with four replications. Main plots were planting date with four levels ( 3 February, 17 February, 2 March, 18 March) and sub plots were four different corn hybrids (TWC 600, TWC 647, SC 704, SC 720). Results showed that there weren’t any significant difference between planting dates for grain yield and yield components, but planting in 18 March had the highest plant height and ear diameter. Between corn hybrids, SC 720 produced highest grain yield (10.48 t ha-1). Grain yield in SC720 hybrid was 2.02 t ha-1 higher than control (SC 704). SC‌720 hybrid had the highest amounts of ear diameter and number row per ear than others. Based on these results, can be concluded that in Orzoiyeh region, cultivation of corn in the range of 3 February to 18 March is possible, but 18 march is the best planting date. As well as SC 720 as a new hybrid can be introduced in this region. Manuscript profile
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2 - Agro-climatic zoning in determining zoning of determining the appropriate growth period, planting date and harvesting date of autumn sowing of sugar beet in Kerman province
Mohammad Ali Javaheri Mehdi Nadi Nadi Hamid Najafinezhad
20.1001.1.20085958.1399.12.41.13.0

Water scarcity is of most important limiting factor of sugar beet production in arid and semi-arid world, like Iran. Due to the lack of autumn cultivation of sugar beet in Kerman province, using Agro-climate zoning, concerning various affecting factors on the growth of More

Water scarcity is of most important limiting factor of sugar beet production in arid and semi-arid world, like Iran. Due to the lack of autumn cultivation of sugar beet in Kerman province, using Agro-climate zoning, concerning various affecting factors on the growth of sugar beets is of the best and lowest-cost method for identification of prone areas for this crop species. In this study, using long-term weather data, occurrence probability of threshold temperatures and developmental stage were calculated. Due to influence of altitude on temperature variables, three-dimensional gradient equations were used for mapping of these factors in geographical information system. The results showed that in the South and east parts of Kerman province, the optimum planting date is the late of October and first days of November. But for the southern of Baft city, first half of October is suitable for planting. For a large parts of the cities of Rafsanjan, Sirjan, Zarand and Bardsir, appropriate planting date was obtained on second half of September. For southern of Kerman province, mid-May is determined of harvest date. Due to temperature limitations, length of growth seasons in these regions are less than central parts. However, these regions have more GDD and appropriate growth days than central parts. It seems that the southern regions of the province, including the cities of Manoujan, Jiroft, Arzuiyeh and Anbarabad with less than 30% probability of vernalisation risk and stemming are quite perfect for sugar beet autumn cultivation. Manuscript profile
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3 - Comparison of yield and some agronomic traits of new bread wheat cultivars in Kerman city (cold area)
Mohammad Ali Javaheri Hamid Najafinezhad
20.1001.1.20085958.1400.13.45.3.5

13 bread wheat cultivars, including Alvand, Back Cross Roshan, Pishtaz, Arg, Tiger, Sirvan, Flamenco, Omid, Orum, Heydari, Mihan, Chamran 2 and Natasha varieties, were evaluated for two years in a completely randomized block design with three replications in the researc More

13 bread wheat cultivars, including Alvand, Back Cross Roshan, Pishtaz, Arg, Tiger, Sirvan, Flamenco, Omid, Orum, Heydari, Mihan, Chamran 2 and Natasha varieties, were evaluated for two years in a completely randomized block design with three replications in the research center of Kerman agricultural education. After running the Bartlett test, composite analysis of variance was performed by SAS software and Duncan's mean comparison was performed at the 5% level, and then the results were interpreted. The results showed that Heidari, Alvand, Orum and Arg cultivars had the highest grain yield with average yields of 6300, 6263, 5546 and 5257 kg / ha, respectively. Also, Chamran 2, Sirvan and Tiger cultivars with average yields of 4488, 4566 and 4668 kg / ha had the lowest grain yields. On the other hand, Omid and Pishtaz cultivars with a weight of 44.24 and 44.04 gr per thousand seeds had the highest, while Flamenco and Tiger cultivars with a weight of 37.49 and 36.73 gr had the lowest weight of a thousand seeds, respectively. Chamran 2 cultivar with 39.83 had the lowest number of seeds per spike. Omid cultivar with 107 cm had the highest plant height and Mihan and Tiger cultivars had the lowest plant height with 81.00 and 79.83 cm, respectively. According to the results of this study (especially in terms of yield and dwarfness), Heydari and Mihan cultivars should be used to replace conventional and old cultivars in Kerman province's cold areas. Manuscript profile

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List of Articles حمید نجف نژاد