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( Kamaluddin ),( Rishi Muni Singh ),( Malik Zainul Abdin ),( Mather Ali Khan ),( Tanweer Alam ),( Salim Khan ),( Lal Chand Prasad ),( Arun Kumar Joshi ) 한국식물학회 2007 Journal of Plant Biology Vol.50 No.4
To understand the genetic control of grain filling duration (GFD), i.e., the number of days from anthesis to physiological maturity, we studied the F1, F2, BC1 and BC2 generations of six spring wheat crosses from nine varieties/genotypes. Generation mean analysis for gene effects indicated that one or more types of epistasis were significant in all crosses. In each pairing, the F1 and F2 means were either intermediate or closer to the mean of the parent having the longer GFD. Our narrow-sense heritability estimate was reasonably high, at 47.67 (based on diallel analysis). This demonstrated that progress could be made from the selection in these crosses for either long or short GFD. The two early varieties that had identical maturity durations differed in their GFD values, indicating that maturity dates are not good criteria when choosing parents for modifying GFD. To utilize favorable additive × additive effects during this selection, we suggest that a single seed descent (SSD) or bulk opulation approach be adopted. In comparison, dominance effects would prove quite useful in hybrid wheat breeding programs.
Arshad Jamal,Inayat Saleem Fazli,Saif Ahmad,Malik Zainul Abdin,Song Joong Yun 韓國作物學會 2005 Korean journal of crop science Vol.50 No.5
A field experiment was conducted to assess the growth characteristics, seed and oil yield of two cultivars of soybean (G max (L.) Merr.) cv. PK-416 (V1 ) and cv. PK-1024 (V2 ) in relation to sulphur and nitrogen nutrition. Six combinations (T1-T6 ) of two levels of sulphur (0 and 40 kg ha-1 ) and two levels of nitrogen (23.5 and 43.5 kg ha-1 ) were applied to the two soybean cultivars as nutrients. Results indicated significant effect of sulphur and nitrogen, when applied together, on the growth characteristics, yield components, and seed and oil yield. Maximum response was observed with treatment T6 (having 40 kg S and 43.5 kg N ha-1 ). Seed and Oil yields were increased 90 and 102~% in V1 > and 104 and 123~% in V2 , respectively as compared to the control i.e. T1 (having 0 kg S and 23.5 kg N ha-1 ). Positive responses of S and N interaction on leaf area index, leaf area duration, crop growth rate and biomass production were also observed. The results obtained in these experiments clearly suggest that balanced and judicious application of nitrogen and sulphur can improve both seed and oil yield of soybean cultivars by enhancing their growth.
Interactive Effect of Nitrogen and Sulphur on Yield and Quality of Groundnut (Arachis hypogea L.)
Jamal Arshad,Fazli Inayat Saleem,Ahmad Saif,Abdin Malik Zainul The Korean Society of Crop Science 2006 Korean journal of crop science Vol.51 No.6
Randomized field experiments were conducted to study the interactive effect of sulphur (S) and nitrogen (N) on seed, oil and protein yield of two cultivars of groundnut {Arachis hypogea: cv Amber $(V_{1})$: cv Kaushal, $(V_{2})$.} Two dosage levels of sulphur ($0\;and\;20kg\;ha^{-1}$) and two dosage levels of N ($23.5\;and\;43.5kg\;ha^{-1}$) in various combinations were tested as micronutrient treatments, $T_{1},\;T_{2},\;and\;T_{3}$. Results indicated significant enhancement of the yield components namely seed and oil yield as well as seed protein. Maximum response was observed with treatment $T_{3}$(having 20kg S and 43.5kg N $ha^{-1})$. Increase in seed and oil yields of 90% and 103% in $V_{1}$, and 79 and 90% in $V_{2}$, respectively were recorded as compared to the control treatment $T_{1}$(having 0kg S and 23.5kg N $ha^{-1}$). Effect of S and N interaction was observed on protein, N and S content in seeds. The results obtained by these experiments clearly suggest that judicious balanced application of N and S could improve the yield.
Arshad Jamal,Inayat Saleem Fazli,Saif Ahmad,Malik Zainul Abdin,윤성중 한국작물학회 2005 Korean journal of crop science Vol.50 No.6
A field experiment was conducted to assess the growth characteristics, seed and oil yield of two cultivars of soybean (G. max (L.) Merr.) cv. PK-416 (V1) and cv. PK-1024 (V2) in relation to sulphur and nitrogen nutrition. Six combinations (T1-T6) of two levels of sulphur (0 and 40 kg ha-1) and two levels of nitrogen (23.5 and 43.5 kg ha-1) were applied to the two soybean cultivars as nutrients. Results indicated significant effect of sulphur and nitrogen, when applied together, on the growth characteristics, yield components, and seed and oil yield. Maximum response was observed with treatment T6 (having 40 kg S and 43.5 kg N ha-1). Seed and Oil yields were increased 90 and 102% in V1, and 104 and 123% in V2, respectively as compared to the control i.e. T1 (having 0 kg S and 23.5 kg N ha -1). Positive responses of S and N interaction on leaf area index, leaf area duration, crop growth rate and biomass production were also observed. The results obtained in these experiments clearly suggest that balanced and judicious application of nitrogen and sulphur can improve both seed and oil yield of soybean cultivars by enhancing their growth.
Jamal Arshad,Fazli Inayat Saleem,Ahmad Saif,Abdin Malik Zainul,Yun Song-Joong The Korean Society of Crop Science 2006 Korean journal of crop science Vol.51 No.4
A number of field experiments were conducted to assess the role of combined application of nitrogen and sulfur to increase the seed and oil yield of nonnodulating soybean (Glycine max (L) Merr.) cv. PK-416 $(V_1)$ and cv. PK-1024 $(V_2)$. Six combinations of N and S in three replicates each were used for this purpose i.e. $0\;S+23.5kg\;N\;ha^{-1}(T_1);\;0\;S+23.5+20kg\;N \;ha^{-1}(T_2);\;40\;S+23.5kg\;N\;ha^{-1}(T_3);\;40\;S+23.5+20kg\;N\;ha^{-1}(T_4);\;20+20\;S+23.5kg\;N\;ha^{-1}(T_5);\;20+20\;S+23.5+20kg\;N\;ha^l(T_6)$. Nitrate reductase (NR) and ATP-sulphurylase activities in the leaves were measured at various growth stages as the two enzymes catalyze the rate limiting steps of the assimilatory pathways of nitrate and sulphate, respectively. The activities of these enzymes were strongly correlated with seed yield. The higher seed, oil and protein yields were achieved with the treatment $T_6$ in both the cultivars due to optimization of NR activity and ATP-sulphurylase activity, as these parameters were influenced by N and S assimilation. Any variation from this combination was observed to decrease the activity of these enzymes resulting in reductions in the seed, oil and protein yield of soybean.
Interactive Effect of Nitrogen and Sulphur on Yield and Quality ofGroundnut (Arachis hypogea L.)
Arshad Jamal,Inayat Saleem Fazli,Saif Ahmad,Malik Zainul Abdin 한국작물학회 2006 Korean journal of crop science Vol.51 No.7
Randomized field experiments were conducted to study the interactive effect of sulphur (S) and nitrogen (N) on seed, oil and protein yield of two cultivars of groundnut {Arachis hypogea: cv Amber (V1); cv Kaushal, (V2)}. Two dosage levels of sulphur (0 and 20 kg ha-1) and two dosage levels of N (23.5 and 43.5 kg ha-1) in various combinations were tested as micronutrient treatments, T1, T2, and T3. Results indicated significant enhancement of the yield components namely seed and oil yield as well as seed protein. Maximum response was observed with treatment T3 (having 20 kg S and 43.5 kg N ha-1). Increase in seed and oil yields of 90% and 103 % in V1, and 79 and 90 % in V2, respectively were recorded as compared to the control treatment T1 (having 0 kg S and 23.5 kg N ha-1). Effect of S and N interaction was observed on protein, N and S content in seeds. The results obtained by these experiments clearly suggest that judicious balanced application of N and S could improve the yield.
Interactive Effect of Nitrogen and Sulphur on Yield and Quality of Groundnut (Arachis hypogea L.)
Arshad Jamal,Inayat Saleem Fazli,Saif Ahmad,Malik Zainul Abdin 韓國作物學會 2006 Korean journal of crop science Vol.51 No.6
Randomized field experiments were conducted to study the interactive effect of sulphur (S) and nitrogen (N) on seed, oil and protein yield of two cultivars of groundnut Arachis hypogea: cv Amber (V1) : cv Kaushal, (V2) . Two dosage levels of sulphur (0~;and~;20kg~;ha-1 ) and two dosage levels of N (23.5~;and~;43.5kg~;ha-1 ) in various combinations were tested as micronutrient treatments, T1,~;T2,~;and~;T3 . Results indicated significant enhancement of the yield components namely seed and oil yield as well as seed protein. Maximum response was observed with treatment T3 (having 20kg S and 43.5kg N ha-1) . Increase in seed and oil yields of 90% and 103% in V1 , and 79 and 90% in V2 , respectively were recorded as compared to the control treatment T1 (having 0kg S and 23.5kg N ha-1 ). Effect of S and N interaction was observed on protein, N and S content in seeds. The results obtained by these experiments clearly suggest that judicious balanced application of N and S could improve the yield.
Jamal Arshad,Fazli Inayat Saleem,Ahmad Saif,Abdin Malik Zainul,Yun Song Joong The Korean Society of Crop Science 2005 Korean journal of crop science Vol.50 No.5
A field experiment was conducted to assess the growth characteristics, seed and oil yield of two cultivars of soybean (G max (L.) Merr.) cv. PK-416 ($V_1$) and cv. PK-1024 ($V_2$) in relation to sulphur and nitrogen nutrition. Six combinations ($T_1-T_6$) of two levels of sulphur (0 and 40 kg $ha^{-1}$) and two levels of nitrogen (23.5 and 43.5 kg $ha^{-1}$) were applied to the two soybean cultivars as nutrients. Results indicated significant effect of sulphur and nitrogen, when applied together, on the growth characteristics, yield components, and seed and oil yield. Maximum response was observed with treatment $T_6$ (having 40 kg S and 43.5 kg N $ha^{-1}$). Seed and Oil yields were increased 90 and $102\%$ in $V_1$> and 104 and $123\%$ in $V_2$, respectively as compared to the control i.e. $T_1$ (having 0 kg S and 23.5 kg N $ha^{-1}$). Positive responses of S and N interaction on leaf area index, leaf area duration, crop growth rate and biomass production were also observed. The results obtained in these experiments clearly suggest that balanced and judicious application of nitrogen and sulphur can improve both seed and oil yield of soybean cultivars by enhancing their growth.
Arshad Jamal,Inayat Saleem Fazli,Saif Ahmad,Malik Zainul Abdin,Song Joong Yun 韓國作物學會 2006 Korean journal of crop science Vol.51 No.4
A number of field experiments were conducted to assess the role of combined application of nitrogen and sulfur to increase the seed and oil yield of nonnodulating soybean (Glycine max (L) Merr.) cv. PK-416 (V1) and cv. PK-1024 (V2) . Six combinations of N and S in three replicates each were used for this purpose i.e. 0~;S+23.5kg~;N~;ha-1(T1);~;0~;S+23.5+20kg~;N ~;ha-1(T2);~;40~;S+23.5kg~;N~;ha-1(T3);~;40~;S+23.5+20kg~;N~;ha-1(T4);~;20+20~;S+23.5kg~;N~;ha-1(T5);~;20+20~;S+23.5+20kg~;N~;hal(T6) . Nitrate reductase (NR) and ATP-sulphurylase activities in the leaves were measured at various growth stages as the two enzymes catalyze the rate limiting steps of the assimilatory pathways of nitrate and sulphate, respectively. The activities of these enzymes were strongly correlated with seed yield. The higher seed, oil and protein yields were achieved with the treatment T6 in both the cultivars due to optimization of NR activity and ATP-sulphurylase activity, as these parameters were influenced by N and S assimilation. Any variation from this combination was observed to decrease the activity of these enzymes resulting in reductions in the seed, oil and protein yield of soybean.