scholarly journals Role of growth regulators and plant water extracts on the productivity and water use efficiency of wheat genotypes under limited water supply

2019 ◽  
Vol 35 (6) ◽  
Author(s):  
Safdar Hussain ◽  
Abdul Rehman ◽  
Muhammad Akram ◽  
Javaid Iqbal ◽  
Tahira Batool Qaisrani ◽  
...  
Keyword(s):  
Growth Regulators ◽  
Block Design ◽  
Compatible Solutes ◽  
Water Extract ◽  
Grain Filling ◽  
Plant Water ◽  
Wheat Genotypes ◽  
Water Extracts ◽  
Filling Stage ◽  
Grain Filling Stage

Empowerment of wheat genotypes by application of growth regulators, compatible solutes and plant extracts under water restriction is an important strategy for getting sustainable yield. Field trail was performed at the research area of the Faculty of Agricultural Sciences, Ghazi University, Dera Ghazi Khan, Pakistan. Three wheat cultivars Aas-2011, Faisalabad- 2008 and Triple dwarf-1 were subjected to drought stress (skipping the irrigation at grain filling stage). The wheat genotypes were subjected to treatments viz., T1 i.e. All normal irrigation without application of abscisic acid (ABA), salicylic acid (SA), moringa (MLE) and mulberry leaf water extract (MBLE), T2­ i.e. skipping the irrigation at grain filling stage and application of 2µM ABA, T3 i.e. skipping the irrigation at grain filling stage and application of 10 m mol SA, T4 i.e. skipping the irrigation at grain filling stage and application of 15% MLE and T5 i.e. skipping the irrigation at grain filling stage and application of 10% MBLE. The experiment was laid out in Randomized Complete Block Design with factorial arrangement and repeated three times. From this study it is concluded that Aas-2011 shown best result under drought condition by applying growth regulators and plant water extracts. rs and plant water extracts.

scholarly journals Response of different wheat genotypes to drought and heat stresses during grain filling stage

2016 ◽  
Vol 38 (3) ◽  
pp. 369-387
Author(s):  
Sanaa I.M. Milad ◽  
Ali I. Nawar ◽  
Ahmed Shaalan ◽  
Moustafa Eldakak ◽  
Jai S. Rohila
Keyword(s):  
Grain Filling ◽  
Wheat Genotypes ◽  
Filling Stage ◽  
Grain Filling Stage

scholarly journals FIELD EVALUATION OF FIVE WHEAT VARIETES AGAINST INSECT PEST INFESTATION

2021 ◽  
Vol 5 (9) ◽  
Author(s):  
Dhananjoy Kumar Mahato ◽  
Md. Mizanur Rahman ◽  
Sadhan Kumer Guha Magumder ◽  
Kazi Md. Abu Sayeed ◽  
Md. Abu Zafur Al Munsur
Keyword(s):  
Insect Pests ◽  
Block Design ◽  
Insect Pest ◽  
Wheat Variety ◽  
Field Evaluation ◽  
Grain Filling ◽  
Leaf Beetle ◽  
Filling Stage ◽  
Physical Resistance ◽  
Grain Filling Stage

The experiment was conducted to evaluate the infestation status of insect pest on different wheat variety. Five wheat variety (BARI GOM -24, BARI GOM-25, BARI GOM-27, BARI GOM-28and BARI GOM-29) were used as a test crop to conduct the study. The experiment was laid out in Randomized Complete Block Design with three replications. Total 5 insect pests were found from this experiment among wheat aphid and wireworm as major and leaf hopper, grass hopper and cereal leaf beetle as minor insect of wheat. The highest insect pest was found in grain filling stage and lowest was found in panicle initiation stage. In grain filling stage, the lowest number of aphid (6.26) was recorded from BARI GOM-29 and the highest number of wheat aphid (9.11) was found in BARI GOM-24. Effect of different varieties of plant height, filled grain, unfilled grain, weight of 1000 grain and yield showed significant. The highest yield (3.56 tha-1 ) was recorded in BARI GOM-29 and the lowest yield 2.29 tha-1 was recorded in BARI GOM-25. The highest percentage of infested spike hill-1 was recorded in BARI GOM-27 and lowest was found in BARI GOM-29. The lowest yield loss (31.53%) was recorded in BARI GOM-29. This is might be due to physical resistance of the varieties. BARI GOM-29 recommended to wheat growers as it is found the most resistant/tolerant wheat cultivar against wheat insect pest with maximum grain yield as compared to other cultivars.

scholarly journals Effect of Nitrogen Scheduling and Cultivars on Yield Attributes and Yields of Sorghum (Sorghum bicolor L.)

2020 ◽  
Author(s):  
Pappu Khatik ◽  
J. X. Massey ◽  
Shrimohan Meena
Keyword(s):  
Grain Yield ◽  
Nitrogen Content ◽  
Block Design ◽  
Foliar Spray ◽  
Grain Filling ◽  
Available Nitrogen ◽  
Yield Attributes ◽  
Leaf Stage ◽  
Filling Stage ◽  
Grain Filling Stage

A field experiment was conducted during kharif season of 2013 at Udaipur (Rajasthan) to find out the effect of nitrogen scheduling and cultivars on yield attributes, yield and soil fertility status after harvest of sorghum. Treatment consisted two cultivars (V1: CSH 16 and V2: CSV 20) and five nitrogen schedules (N1: 50% at sowing as basal + 50% at 30 DAS, N2: 50% at sowing as basal + 25% at 30 DAS + 25% at boot leaf stage, N3: 25% at sowing as basal + 50% at 30 DAS + 25% at boot leaf stage, N4: 25% at sowing as basal + 50% at 30 DAS + 15% at boot leaf stage + 10% at grain filling stage, N5: 25% at sowing as basal + 45% at 30 DAS + 5% foliar spray at 45 DAS + 15 % at boot leaf stage + 10% at grain filling stage) were assigned in a factorial randomized block design. The results revealed that the cultivar CSH 16 recorded significantly higher number of grains per panicle, 1000 grain weight, grain yield (1521 kg/ha), harvest index (13.17) and nitrogen content in plant, whereas significantly higher number of primaries per panicle, stover yield (11141 kg/ha) and available nitrogen in soil were recorded in CSV 20. Application of nitrogen in N2 schedule (50% at sowing as basal + 25% at 30 DAS + 25% at boot-leaf stage) had marked influence on yield attributes, yield and nitrogen content in plant when compared to rest of the nitrogen schedules. Therefore, it was concluded that significantly higher grain yield was recorded in cultivar CSH 16 and N2 schedule of nitrogen application from sorghum.

Effect of Temperature during Grain Filling Stage on Endosperm Structure and Apperance Quality of Aromatic Rice

2012 ◽  
Vol 460 ◽  
pp. 286-289 ◽  
Author(s):  
Zhen Jiang Xu ◽  
Li Zhong Xiao ◽  
Hong Liu ◽  
Yong Hao Ren ◽  
Zhi Lin Li
Keyword(s):  
Grain Filling ◽  
Effect Of Temperature ◽  
Rice Grain ◽  
Aromatic Rice ◽  
Starch Granules ◽  
Filling Stage ◽  
Appearance Quality ◽  
Endosperm Structure ◽  
Grain Filling Stage

Based on the experiment of two inbred aromatic rice varieties and one hybrid aromatic rice line treated under four different temperatures( daymean temperature 21°C, 23°C, 26°C and 30°C respectively) during grain filling stage in phytotrons, the shape and arrangement of endosperm starch granules in rice grain transection were observed by scanning electron microscope and the related characteristics of rice grain qualities of chalky percent and chalkiness were analyzed at the same time. The results showed that under the lower temperature( daymean temperature21°C and 23°C), many large compound starch granules with clear angulars packed together regularly without significant natural gaps bewteen starch granules in the tansectional endosperm. However, with the increase of temperature, starch granules in the transectional endosperm were changed from regularly shaped and closely and orderly arranged to various shaped and chaoticly arranged with obvious natural gaps between starch granules, which was closely consistent with the poorer appearance quality under the higher temperature, which indicated that the endosperm structure is closely related with appearance quality of aromatic rice.

scholarly journals Variation of 13C and 15N enrichments in different plant components of labeled winter wheat (Triticum aestivum L.)

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7738
Author(s):  
Zhaoan Sun ◽  
Shuxia Wu ◽  
Biao Zhu ◽  
Yiwen Zhang ◽  
Roland Bol ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Grain Filling ◽  
Triticum Aestivum L ◽  
N Fertilization ◽  
Wheat Growth ◽  
Filling Stage ◽  
N Enrichment ◽  
Two Stages ◽  
Grain Filling Stage

Information on the homogeneity and distribution of 13carbon (13C) and nitrogen (15N) labeling in winter wheat (Triticum aestivum L.) is limited. We conducted a dual labeling experiment to evaluate the variability of 13C and 15N enrichment in aboveground parts of labeled winter wheat plants. Labeling with 13C and 15N was performed on non-nitrogen fertilized (−N) and nitrogen fertilized (+N, 250 kg N ha−1) plants at the elongation and grain filling stages. Aboveground parts of wheat were destructively sampled at 28 days after labeling. As winter wheat growth progressed, δ13C values of wheat ears increased significantly, whereas those of leaves and stems decreased significantly. At the elongation stage, N addition tended to reduce the aboveground δ13C values through dilution of C uptake. At the two stages, upper (newly developed) leaves were more highly enriched with 13C compared with that of lower (aged) leaves. Variability between individual wheat plants and among pots at the grain filling stage was smaller than that at the elongation stage, especially for the −N treatment. Compared with those of 13C labeling, differences in 15N excess between aboveground components (leaves and stems) under 15N labeling conditions were much smaller. We conclude that non-N fertilization and labeling at the grain filling stage may produce more uniformly 13C-labeled wheat materials, whereas the materials were more highly 13C-enriched at the elongation stage, although the δ13C values were more variable. The 15N-enriched straw tissues via urea fertilization were more uniformly labeled at the grain filling stage compared with that at the elongation stage.

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