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International Journal of Modern Agriculture ISSN 2305-7246

     
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ALLELOPATHIC EFFECT OF SOME SUMMER LEGUMES ON SEED GERMINATION, EMERGENCE AND SEEDLING GROWTH OF PEARL MILLET (Pennisetum americanum L.


M. Ayub1, M. Shehzad2*, M.A. Nadeem1, M. Tahir,  M.H. Siddiqui2, M. Shoaib1 and I. Qadir1

1Department of Agronomy, University of Agriculture, Faisalabad-Pakistan

2Faculty of Agriculture, Department of Agronomy, The University of Poonch Rawalakot

*Corresponding author (e-mail: m.shahzaduaf@gmail.com)

Abstract

In Pakistan, pearl millet is being grown in mixture with forage legumes for improving both yield and quality but informationís are lacking on allelopathic effects of summer legumes germination and seedling growth of pearl millet. Laboratory based experiments were therefore conducted in Department of Agronomy, University of Agriculture Faisalabad, to investigate the allelopathic effects of aqueous extracts of leaves and stems of leguminous crops i.e. cowpea, sesbania, mung bean and cluster bean  on seed germination, seedling emergence and growth of millet seedlings. The cowpea, sesbania, mung bean and cluster bean plants were separated into leaves and stems and dried under shade. The concentration of leaves and stem of each species at the rate of 100 g l-1 was used and distilled water as control was also included for comparison. All the extracts either from leaves or stems significantly affected all parameters i.e. germination, emergence of seedlings, MGT, GI, T50, shoot length, root length and fresh and dry weight of shoot and roots. Extract of leguminous crops showed inhibitory effects on germination and emergence, shoot and root length, fresh and dry weight of shoots and roots and total fresh weight of seedlings. There have been a variation in allelopathic effect of stems and leaves and even differences were significant in some parameters between stem and leaves of same legumes. FULL TEXT PDF

 

 

 

EFFECT OF DIFFERENT PRIMING AGENTS ON THE PRODUCTIVITY OF HYBRID MAIZE (Zea mays L.)

Javid Nawaz1, Riaz Ahmad1, Abdul Jabbar1, Ghulam Abbas Nadeem1 and Muhammad Hussain*1

1Department of Agronomy, University of Agriculture, Faislabad, Pakistan.

*Corresponding author (e-mail: mhussainuaf@gmail.com)

 Abstract

A field study to evaluate the effect of seed priming on productivity of hybrid corn was carried out at Agronomic Research Area, University of Agriculture, Faisalabad, during spring 2013. Experiment was laid out in randomized complete block design with eight treatments replicated three times. Seeds of maize hybrid Pioneer-32B33 were subjected to priming with various priming agents viz, hydro-priming, priming with zinc sulphate (ZnSO4), priming with potassium nitrate (KNO3) and priming with boric acid (H3BO3). Two concentrations (0.5% and 1%) were used for each osmo-priming agent and one treatment was kept as control (no treatment) to compare with the priming treatments. The results revealed that seed priming showed significant effect on the performance of maize. Priming treatments improved all the yield contributing parameters of maize. Maximum grain yield (6.40 t ha-1) was obtained from the plots that were treated with 1% solution of zinc sulphate followed by seed priming with 1% KNO3 (5.70 t ha-1)  due to improvement in plant height, number of cobs per plant, number of grains per row, number of grains per cob, 1000-grain weight and harvest index. It is therefore suggested that osmo-priming of maize seeds with ZnSO4 should be practiced in order to obtain the higher grain yield and net return, under the prevailing agro-climatic conditions of Faisalabad.FULL TEXT PDF

 

 

 

EVALUATION OF GROWTH AND YIELD RESPONSE OF WHEAT TO FOLIAR APPLICATION OF RICE WATER EXTRACT

Mashood Ul Subtain*1, Zahid Ata1, Muhammad Hussain1, Javid Nawaz1, Mubasher Ali2, Imran Shabbir1 and Sajjad Raza3

1Department of Agronomy, University of Agriculture, Faisalabad, Pakistan

2Department of Plant Pathology, University of Agriculture, Faisalabad, Pakistan

3Intsitute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan

*Corresponding author (e-mail: mashood_uaf@yahoo.com)

 Abstract

A field study was conducted to evaluate the growth and yield response of wheat (Triticum aestivum L.) to foliar application of rice water extract at the Agronomic Research Area, University of Agriculture Faisalabad, during the growing season 2011-2012. Experiment was laid out in randomized complete block design (RCBD) with eleven treatments that were replicated four times. The gross plot size was 7 m ◊ 2.2 m. Foliar sprays of rice water extract (2.5%, 5% and 7.5%) were applied at two critical growth stages (tillering and earing) of wheat. Two treatments (No spray and pure water spray) were kept for comparison with rice water extract treatments. All other agronomic practices were kept uniform and according to the recommendation. All the treatments significantly increased the grain yield of wheat as compared to control. Highest grain yield (27% more than control) was recorded in plots treated with rice water extract (5.0%) two sprays at tillering + earing and it was statistically at par with rice water extract (2.5%) 2 sprays at tillering + earing which produced 24% more grain yield as compared to control. One spray of rice water extract (5.0%) at tillering also significantly affected the wheat yield over the control, but it was less effective as compared to treatment in which two foliar sprays of rice water extract was applied at tillering + earing. Two sprays of rice water extract (5.0%) at tillering + earing significantly affected the leaf area index, productive tillers, more plant and spike length, more number of grains per spike, grain weight which ultimately result in better grain yield of wheat. These results were possibly due to promotive effect of rice water extract which contain indole acetic acid and lower concentration of allelochemicals. Thus it could be suggested that foliar application of rice water extract at low concentration can be used as growth promoter and yield enhancer. FULL TEXT PDF

 

 

 

ASSESSMENT OF GENETIC DIVERSITY IN DETERMINATE TOMATO (SOLANUM LYCOPERSICUM L.) ACCESSIONS

Muneeb Munawar1*, Kashif Nadeem1, Ghazanfar Hammad1, Mudassar Iqbal1, Muhammad Muzaffar Raza1, Muhammad Iqbal1 and Muhammad Saleem1

1Vegetable Research Institute, AARI, Pakistan

*Corresponding author (e-mail: muneeb.pbg@hotmail.com)

 Abstract

Present study was conducted to characterize 21 tomato accessions based upon ten yield components and fruit quality traits to select suitable parents for improving fresh fruit yield and quality. Experiment was conducted in triplicated randomized complete block design. Considerable genetic variation was observed in available germplasm for improving yield and quality of fresh fruit. First four principle components explained 78.3% of total variation. PC-1 and PC-2 were attributed to fruit yield and fruit quality respectively. PC-4 was defined by lycopene contents. Twenty one genotypes were grouped into 4 clusters based upon ward linkage and Euclidean distance. Genotypes of cluster 1 were late maturing with prolonged shelf life. High fruit yield characterized genotypes of cluster 4 with high mean value for number of fruit clusters per plant, number of fruits per plant and total soluble salts. Number of fruit clusters and fruits per plant were more important for improving fresh fruit yield than fresh fruit weight. Intercrossing between genotypes of cluster 1 and cluster 4 would be suitable breeding strategy for developing high yielding tomato cultivars with improved quality and shelf life.FULL TEXT PDF

 

 

 

 
     
 
   

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