ĐÁNH GIÁ HIỆU QUẢ KÍCH THÍCH SINH TRƯỞNG LẠC CỦA MỘT SỐ CHẾ PHẨM VI KHUẨN BACILLUS Ở QUẢNG NAM LUẬN VĂN THẠC SĨ NÔNG NGHIỆP

I H C HU TR NG LÊ I H C NƠNG LÂM C LÂM ÁNH GIÁ HI U QU KÍCH THÍCH SINH TR C AM TS CH PH M VI KHU N BACILLUS NG L C QU NG NAM LU N V N TH C S NÔNG NGHI P Chuyên ngành: Khoa h c tr ng HU - 2018 I H C HU TR NG I H C NÔNG LÂM LÊ C LÂM ÁNH GIÁ HI U QU KÍCH THÍCH SINH TR C AM TS CH PH M VI KHU N BACILLUS LU N V N TH C S NÔNG NGHI P Chuyên ngành: Khoa h c tr ng Mã s : 8620110 NG IH NG D N KHOA H C PGS.TS LÊ NH C HU - 2018 NG NG L C QU NG NAM i L I CAM OAN Tôi xin cam đoan lu n v n th c s “ ánh giá hi u qu kích thích sinh tr ng l c c a m t s ch ph m vi khu n Bacillus Qu ng Nam” cơng trình nghiên c u c a riêng Các s li u, k t qu nghiên c u đ c trình bày lu n v n trung th c, khách quan ch a t ng đ c cơng b b t kì m t cơng trình N u có sai sót tơi xin ch u hồn tồn trách nhi m Tác gi lu n v n Lê c Lâm ii L IC M N Trong trình th c hi n đ tài hoàn thành lu n v n này, s c g ng c a b n thân, nh n đ c s giúp đ c a nhi u cá nhân t p th Tơi xin đ c bày t lịng bi t n chân thành v nh ng s giúp đ quý giá u tiên, tơi xin bày t lịng bi t n t i ng i h ng d n khoa h c - th y giáo, PGS.TS Lê Nh C ng; b môn B o v th c v t, khoa Nông h c, tr ng ih c Nông Lâm, i h c Hu , th y đ nh h ng nghiên c u, h ng d n t n tình giúp đ tơi hồn thành lu n v n Tôi xin chân thành c m n th y, cô giáo khoa Nông h c, cán b phòng t o sau đ i h c t o u ki n giúp đ su t th i gian h c t p t i tr ng c ng nh th c hi n đ tài nghiên c u hoàn thành lu n v n Xin chân thành c m n lãnh đ o Phịng Nơng nghi p Phát tri n Nơng thơn huy n Th ng Bình, y ban nhân dân xã Bình ào, y ban nhân dân xã Bình Ph c, huy n Th ng Bình bà nông dân t o u ki n đ th c hi n nghiên c u t i đ a ph ng C m n em sinh viên chuyên ngành B o v th c v t, Khoa h c tr ng khóa 48 đ ng hành th i gian th c hi n nghiên c u đ tài Cu i cùng, tơi xin bày t lịng bi t n sâu s c t i cha m , ng i thân b n bè dành cho tình c m, s đ ng viên đ tơi hồn thành khóa h c Qu ng Nam, tháng n m 2018 Tác gi lu n v n Lê c Lâm iii TÓM T T Nghiên c u “ ánh giá hi u qu kích thích sinh tr ng l c c a m t s ch ph m vi khu n Bacillus Qu ng Nam” nh m m c đích xác đ nh đ c ch ph m vi khu n Bacillus có kh n ng kích thích sinh tr ng nâng cao n ng su t l c, làm c s xây d ng quy trình ng d ng ch ph m vi khu n Bacillus s n xu t l c Qu ng Nam Nghiên c u s d ng ch ph m vi khu n BaD-S1A1, BaD-S1F3, BaD-S13E2, BaDS13E3, BaD- S18F11 BaD- S20D12 đ c s n xu t t ch ng vi khu n Bacillus t ng ng Bacillus sp S1A1, Bacillus sp S1F3, Bacillus sp S13E2, Bacillus sp S13E3, Bacillus sp S18F11, Bacillus sp S20D12, t t c ch ph m đ u có m t đ vi khu n 109 cfu/gam s d ng v t li u nghiên c u gi ng l c L23 tài g m n i dung chính: (1) ánh giá hi u qu kích thích sinh tr ng l c c a m t s ch ph m vi khu n Bacillus; (2) ánh giá kh n ng h n ch m t s b nh h i l c c a m t s ch ph m vi khu n Bacillus (3) ánh giá nh h ng c a ch ph m vi khu n Bacillus đ n y u t c u thành n ng su t n ng su t l c Thí nghi m đ c ti n hành 02 v (v Xuân Hè 2017 v ông Xuân 2017 – 2018) t i vùng đ t cát thu c xã Bình xã Bình Ph c, huy n Th ng Bình, t nh Qu ng Nam B trí thí nghi m theo Quy chu n k thu t qu c gia v kh o nghi m giá tr canh tác giá tr s d ng c a gi ng l c (QCVN 01-57: 2011/BNNPTNT), thí nghi m g m công th c (6 ch ph m vi khu n Bacillus đ i ch ng không s d ng ch ph m) đ c thi t k theo ki u kh i ng u nhiên RCBD, l n nh c l i, di n tích m i ô thí nghi m 15m2 Li u l ng ch ph m 1gam/m2, s d ng theo ph ng pháp thêm đ t rãi h t l c, m t đ tr ng 33 cây/m2 ánh giá ch tiêu STPT theo QCVN 01-168: 2014/BNNPTNT ch tiêu BVTV đ c đánh giá theo Quy chu n k thu t qu c gia v u tra d ch h i l c đ ng ru ng (QCVN 01-168: 2014/BNNPTNT) K t qu nghiên c u cho th y BaD-S20D12 ch ph m t t nh t, có kh n ng làm t ng t l m c c a gi ng l c L23, t ng s l ng cành, s xanh l i, kích thích hình thành n t s n, h n ch đ c b nh g s t, b nh đ m cho n ng su t th c thu cao nh t công th c thí nghi m, v i NSTT dao đ ng t 21,96 - 26,97 t /ha ch ph m BaD-S20D12 cho t l t ng so v i đ i ch ng t 18,29 – 21,13% V i k t qu nghiên c u trên, m nh d n đ xu t ti p t c nghiên c u nh h ng c a ch ph m vi khu n Bacillus chân đ t gi ng l c khác đ có k t lu n xác h n ng th i, th nghi m mơ hình tr ng l c ng d ng ch ph m BaD-S20D12 t i đ a bàn nghiên c u vùng tr ng l c khác Qu ng Nam đ có s s khuy n cáo cho bà nông dân ng th i, góp ph n xây d ng quy trình s n xu t l c ng d ng ch ph m vi khu n Bacillus t i Qu ng Nam iv M CL C L I CAM OAN i L I C M N ii TÓM T T iii M C L C iv DANH M C KÝ HI U CÁC CH VI T T T vi DANH M C CÁC B NG .viii DANH M C CÁC HÌNH, S M x U 1 TÍNH C P THI T C A M C TIÊU C A TÀI TÀI Ý NGH A KHOA H C VÀ TH C TI N C A TÀI 3.1 Ý ngh a khoa h c 3.2 Ý ngh a th c ti n CH NG T NG QUAN CÁC V N NGHIÊN C U 1.1 C S LÝ LU N VÀ TH C TI N C A TÀI 1.1.1 C s lý lu n 1.1.2 C s th c ti n 1.2 T NG QUAN V CÂY L C 1.2.1 Ngu n g c, giá tr c a l c 1.2.2 Tình hình s n xu t l c th gi i Vi t Nam 1.2.3 Các y u t nh h ng đ n s n xu t l c 12 1.3 VI KHU N CĨ ÍCH V I CÂY TR NG 20 1.3.1 Ch ph m sinh h c 21 CH NG I T NG, PH M VI, N I DUNG VÀ PH NG PHÁP NGHIÊN C U 25 2.1 IT NG VÀ PH M VI NGHIÊN C U 25 2.1.1 V t li u, đ i t ng nghiên c u 25 v 2.1.2 Ph m vi nghiên c u 26 2.2 N I DUNG NGHIÊN C U 26 2.3 PH NG PHÁP NGHIÊN C U 26 2.3.1 B trí thí nghi m 26 2.3.2 Quy trình k thu t 27 2.3.3 Ph ng pháp đánh giá thí nghi m 28 2.4 DI N BI N TH I TI T KHÍ H U TRONG TH I GIAN THÍ NGHI M T I QU NG NAM 31 2.5 X LÝ S LI U 32 CH NG K T QU NGHIÊN C U VÀ TH O LU N 33 3.1 NH H NG C A CH PH M VI KHU N BACILLUS N M T S CH TIÊU SINH TR NG, PHÁT TRI N L C 33 3.1.1 nh h ng c a ch ph m vi khu n Bacillus đ n t l m c c a l c 33 3.1.2 nh h ng c a ch ph m vi khu n Bacillus đ n chi u cao chi u dài cành c p c a l c 35 3.1.3 nh h ng c a ch ph m vi khu n Bacillus đ n s c a l c 38 3.1.4 nh h ng c a ch ph m vi khu n Bacillus đ n s cành c a l c 40 3.1.5 nh h ng c a ch ph m vi khu n Bacillus đ n s l 3.2 NH H ng n t s n c a l c 42 NG C A CH PH M VI KHU N BACILLUS N B NH H I 44 3.2.1 B nh g s t 44 3.2.2 B nh đ m nâu đ m đen 48 3.3 NH H NG C A CH PH M VI KHU N BACILLUS N N NG SU T L C 53 K T LU N VÀ KI N NGH 58 K T LU N 58 KI N NGH 58 TÀI LI U THAM KH O 59 vi DANH M C KÝ HI U CÁC CH T vi t t t Ngh a c a t cal Calori cfu Colony Forming Unit/ cs C ng s CT Công th c /c i ch ng X ông Xuân FAO n v hình thành khu n l c Food and Agriculture Organization of the United Nations/ T ch c L ng th c nông nghi p Liên Hi p Qu c g gam HT Hè Thu HXVK Héo xanh vi khu n ICRISAT VI T T T International Crops Research Institute for the Semi-Arid Tropics/ Vi n Nghiên c u Cây tr ng Qu c t vùng Nhi t đ i bán khô h n IFA International Fertilizer Association/ Hi p h i phân bón qu c t K Kali KHKT Khoa h c k thu t KL Kh i l Max Nhi t đ cao nh t Min Nhi t đ th p nh t N ng m NSLT N ng su t lý thuy t NSTT N ng su t th c thu P Lân vii P100 h t Kh i l ng 100 h t P100 qu Kh i l ng 100 qu PTNT Phát tri n nông thôn RBCD TGST Randomized Block Complete Design/Thi t k kh i hoàn toàn ng u nhiên Th i gian sinh tr ng TB Trung bình TBNN Trung bình nhi u n m UBND VAAS y ban nhân dân Vietnam Academy of Agricultural Sciences/Vi n khoa h c Nông nghi p viii DANH M C CÁC B NG B ng 1.1 Di n tích, n ng su t s n l ng l c c a m t s n c th gi i t n m 2011 - 2013 B ng 1.2 Di n tích, n ng su t s n l ng l c vùng tr ng l c Vi t Nam giai đo n 2011 – 2016 B ng 1.3 Di n tích, n ng su t, s n l ng l c Qu ng Nam giai đo n 2011-2015 10 B ng 1.4 Di n tích, n ng su t, s n l ng l c huy n Th ng Bình 11 B ng 2.1 Các ch ph m vi khu n Bacillus s d ng nghiên c u 25 B ng 2.2 Li u l ng ph ng pháp x lý ch ph m vi khu n Bacillus 26 B ng 2.3 Phân c p b nh h i l c 30 B ng 2.4 Di n bi n khí h u th i ti t v Xuân Hè 2017 ông Xuân 2017 - 2018 t i Qu ng Nam 32 B ng 3.1 T l m c c a gi ng l c L23 v Xuân Hè 2017 v ông Xuân 20172018 t i huy n Th ng Bình, t nh Qu ng Nam (%) 34 B ng 3.2 Chi u cao thân chi u dài cành c p c a gi ng l c L23 công th c thí nghi m v Xuân Hè 2017 (cm) 35 B ng 3.3 Chi u cao thân chi u dài cành c p c a gi ng l c L23 cơng th c thí nghi m v ông Xuân 2017-2018 (cm) 37 B ng 3.4 S thân s xanh cịn l i c a gi ng l c L23 công th c thí nghi m v Xuân Hè 2017 (lá/cây) 38 B ng 3.5 S s xanh l i c a gi ng l c L23 công th c thí nghi m v ơng Xn 2017 – 2018 (lá/cây) 40 B ng 3.6 S cành c a gi ng l c L23 công th c thí nghi m v Xuân Hè 2017 v ông Xuân 2017 – 2018 (cành/cây) 41 B ng 3.7 S l ng n t s n c a gi ng l c L23 cơng th c thí nghi m 43 B ng 3.8 T l b nh ch s b nh g s t gi ng l c L23 công th c thí nghi m qua k u tra v Xuân Hè 2017 (%) 45 B ng 3.9 T l b nh ch s b nh g s t gi ng l c L23 cơng th c thí nghi m qua k u tra v ông Xuân 2017-2018 (%) 47 B ng 3.10 T l b nh ch s b nh đ m gi ng l c L23 cơng th c thí nghi m v Xuân Hè 2017 (%) 48 80 34.340 33.330 33.330 32.320 26.260 A A A A B Alpha 0.05 Standard Error for Comparison 2.7351 Critical T Value 2.179 Critical Value for Comparison 5.9593 There are groups (A and B) in which the means are not significantly different from one another 10 ngày sau gieo h t LSD All-Pairwise Comparisons Test of TLMDX2 for Congthuc Congthuc Mean Homogeneous Groups 65.660 A 65.660 A 63.640 A 62.630 A 62.630 A 61.620 A 58.590 A Alpha 0.05 Standard Error for Comparison 3.9426 Critical T Value 2.179 Critical Value for Comparison 8.5903 There are no significant pairwise differences among the means 15 ngày sau gieo h t LSD All-Pairwise Comparisons Test of TYLEMOC for Congthuc Congthuc Mean Homogeneous Groups 88.890 A 88.890 A 86.870 AB 86.870 AB 85.860 AB 85.860 AB 81.820 B Alpha 0.05 Standard Error for Comparison 2.7966 Critical T Value 2.179 Critical Value for Comparison 6.0932 There are groups (A and B) in which the means are not significantly different from one another S S CÀNH cành c p LSD All-Pairwise Comparisons Test of SCC1 for Congthuc 81 Congthuc Mean Homogeneous Groups 3.9667 A 3.9333 A 3.8667 A 3.8333 A 3.8333 A 3.7667 A 3.7000 A Alpha 0.05 Standard Error for Comparison 0.1671 Critical T Value 2.179 Critical Value for Comparison 0.3642 There are no significant pairwise differences among the means S cành c p LSD All-Pairwise Comparisons Test of SCC2 for Congthuc Congthuc Mean Homogeneous Groups 2.5000 A 2.5000 A 2.3667 A 2.3667 A 2.2000 A 2.1333 A 2.0000 A Alpha 0.05 Standard Error for Comparison 0.3012 Critical T Value 2.179 Critical Value for Comparison 0.6563 There are no significant pairwise differences among the means T ng s cành LSD All-Pairwise Comparisons Test of TSC for Congthuc Congthuc Mean Homogeneous Groups 6.3333 A 6.3000 A 6.2000 A 6.1667 A 6.0000 A 5.9667 A 5.7333 A Alpha 0.05 Standard Error for Comparison 0.3672 Critical T Value 2.179 Critical Value for Comparison 0.8000 There are no significant pairwise differences among the means CHI U CAO CÂY Chi u cao thân 82 Giai đo n LSD All-Pairwise Comparisons Test of CC1 for Congthuc Congthuc Mean Homogeneous Groups 12.400 A 11.933 AB 11.867 AB 11.367 BC 11.333 BC 11.000 BC 10.733 C Alpha 0.05 Standard Error for Comparison 0.4293 Critical T Value 2.179 Critical Value for Comparison 0.9355 There are groups (A, B, etc.) in which the means are not significantly different from one another Giai đo n b t đ u hoa LSD All-Pairwise Comparisons Test of CC2 for Congthuc Congthuc Mean Homogeneous Groups 17.800 A 16.767 AB 15.267 BC 13.800 CD 13.567 CD 13.167 D 12.367 D Alpha 0.05 Standard Error for Comparison 0.9444 Critical T Value 2.179 Critical Value for Comparison 2.0576 There are groups (A, B, etc.) in which the means are not significantly different from one another Giai đo n k t thúc hoa LSD All-Pairwise Comparisons Test of CC3 for Congthuc Congthuc Mean Homogeneous Groups 28.700 A 27.867 A 25.100 A 24.233 A 23.567 A 23.567 A 20.500 A Alpha 0.05 Standard Error for Comparison 4.3269 83 Critical T Value 2.179 Critical Value for Comparison 9.4275 There are no significant pairwise differences among the means Giai đo n thu ho ch LSD All-Pairwise Comparisons Test of CC4 for Congthuc Congthuc Mean Homogeneous Groups 45.867 A 39.933 B 39.033 B 37.933 B 37.533 B 35.867 B 35.567 B Alpha 0.05 Standard Error for Comparison 2.3901 Critical T Value 2.179 Critical Value for Comparison 5.2076 There are groups (A and B) in which the means are not significantly different from one another Chi u dài cành c p LSD All-Pairwise Comparisons Test of CDCC1 for Congthuc Congthuc Mean Homogeneous Groups 49.967 A 43.333 B 42.300 BC 41.033 BC 40.600 BC 39.500 BC 39.100 C Alpha 0.05 Standard Error for Comparison 1.8855 Critical T Value 2.179 Critical Value for Comparison 4.1082 There are groups (A, B, etc.) in which the means are not significantly different from one another S LÁ Giai đo n LSD All-Pairwise Comparisons Test of SL1 for Congthuc Congthuc Mean Homogeneous Groups 5.5000 A 5.5000 A 5.4667 A 5.4667 A 5.4333 A 84 5.4333 A 5.3333 A Alpha 0.05 Standard Error for Comparison 0.0839 Critical T Value 2.179 Critical Value for Comparison 0.1828 There are no significant pairwise differences among the means Giai đo n b t đ u hoa LSD All-Pairwise Comparisons Test of SL2 for Congthuc Congthuc Mean Homogeneous Groups 7.0667 A 6.8667 A 6.8333 A 6.8333 A 6.7333 A 6.5333 A 6.4667 A Alpha 0.05 Standard Error for Comparison 0.3402 Critical T Value 2.179 Critical Value for Comparison 0.7412 There are no significant pairwise differences among the means Giai đo n k t thúc hoa LSD All-Pairwise Comparisons Test of SL3 for Congthuc Congthuc Mean Homogeneous Groups 10.667 A 10.233 AB 10.233 AB 10.233 AB 10.000 AB 9.967 B 9.733 B Alpha 0.05 Standard Error for Comparison 0.3201 Critical T Value 2.179 Critical Value for Comparison 0.6975 There are groups (A and B) in which the means are not significantly different from one another Giai đo n thu ho ch LSD All-Pairwise Comparisons Test of SL4 for Congthuc Congthuc Mean Homogeneous Groups 13.933 A 13.333 B 13.300 B 13.200 BC 85 13.100 BC 13.067 BC 12.900 C Alpha 0.05 Standard Error for Comparison 0.1660 Critical T Value 2.179 Critical Value for Comparison 0.3617 There are groups (A, B, etc.) in which the means are not significantly different from one another S xanh l i LSD All-Pairwise Comparisons Test of SLCX for Congthuc Congthuc Mean Homogeneous Groups 7.5667 A 7.4333 A 7.1333 AB 7.1000 AB 6.0000 BC 5.7667 BC 5.1333 C Alpha 0.05 Standard Error for Comparison 0.6359 Critical T Value 2.179 Critical Value for Comparison 1.3855 There are groups (A, B, etc.) in which the means are not significantly different from one anotheR S N TS N Giai đo n b t đ u hoa LSD All-Pairwise Comparisons Test of NS1 for Congthuc Congthuc Mean Homogeneous Groups 191.22 A 184.22 AB 180.78 AB 172.67 AB 169.00 BC 167.11 BC 148.45 C Alpha 0.05 Standard Error for Comparison 9.6723 Critical T Value 2.179 Critical Value for Comparison 21.074 There are groups (A, B, etc.) in which the means are not significantly different from one another Giai đo n k t thúc hoa LSD All-Pairwise Comparisons Test of NS2 for Congthuc Congthuc Mean Homogeneous Groups 86 274.78 261.89 257.67 255.22 239.22 234.33 213.78 A AB B B C C D Alpha 0.05 Standard Error for Comparison 6.5927 Critical T Value 2.179 Critical Value for Comparison 14.364 There are groups (A, B, etc.) in which the means are not significantly different from one another Giai đo n thu ho ch LSD All-Pairwise Comparisons Test of NS3 for Congthuc Congthuc Mean Homogeneous Groups 399.33 A 375.33 A 372.33 A 370.33 A 366.67 A 363.00 A 318.00 A Alpha 0.05 Standard Error for Comparison 52.726 Critical T Value 2.179 Critical Value for Comparison 114.88 There are no significant pairwise differences among the means CH TIÊU B NH H I B NH M LÁ Ngày theo dõi 10/3 T l b nh LSD All-Pairwise Comparisons Test of DLT1 for Congthuc Congthuc Mean Homogeneous Groups 82.667 A 70.000 B 67.333 B 62.667 BC 58.667 C 58.667 C 48.667 D Alpha 0.05 Standard Error for Comparison 3.5247 Critical T Value 2.179 Critical Value for Comparison 7.6796 87 There are groups (A, B, etc.) in which the means are not significantly different from one another Ch s b nh LSD All-Pairwise Comparisons Test of DLC1 for Congthuc Congthuc Mean Homogeneous Groups 10.517 A 8.370 B 7.557 BC 7.480 BC 7.110 BC 6.813 CD 5.703 D Alpha 0.05 Standard Error for Comparison 0.6439 Critical T Value 2.179 Critical Value for Comparison 1.4029 There are groups (A, B, etc.) in which the means are not significantly different from one another Ngày theo dõi 24/3 T l b nh LSD All-Pairwise Comparisons Test of DLT2 for Congthuc Congthuc Mean Homogeneous Groups 86.000 A 72.000 B 72.000 B 68.000 BC 64.667 CD 60.667 D 51.333 E Alpha 0.05 Standard Error for Comparison 2.3860 Critical T Value 2.179 Critical Value for Comparison 5.1987 There are groups (A, B, etc.) in which the means are not significantly different from one another Ch s b nh LSD All-Pairwise Comparisons Test of DLC2 for Congthuc Congthuc Mean Homogeneous Groups 12.073 A 8.740 B 8.370 B 8.150 B 8.147 B 7.777 B 88 6.300 C Alpha 0.05 Standard Error for Comparison 0.6144 Critical T Value 2.179 Critical Value for Comparison 1.3387 There are groups (A, B, etc.) in which the means are not significantly different from one another Ngày theo dõi 7/4 T l b nh LSD All-Pairwise Comparisons Test of DLT3 for Congthuc Congthuc Mean Homogeneous Groups 88.000 A 75.333 B 74.000 BC 70.667 CD 68.667 D 64.000 E 55.333 F Alpha 0.05 Standard Error for Comparison 2.0981 Critical T Value 2.179 Critical Value for Comparison 4.5714 There are groups (A, B, etc.) in which the means are not significantly different from one another Ch s b nh LSD All-Pairwise Comparisons Test of DLC3 for Congthuc Congthuc Mean Homogeneous Groups 12.443 A 9.557 B 8.817 B 8.667 B 8.593 B 8.590 B 6.890 C Alpha 0.05 Standard Error for Comparison 0.7457 Critical T Value 2.179 Critical Value for Comparison 1.6246 There are groups (A, B, etc.) in which the means are not significantly different from one another Ngày theo dõi 21/4 T l b nh LSD All-Pairwise Comparisons Test of DLT4 for Congthuc Congthuc Mean Homogeneous Groups 89.333 A 89 77.333 B 76.667 B 72.667 BC 70.667 CD 65.333 D 58.667 E Alpha 0.05 Standard Error for Comparison 2.4944 Critical T Value 2.179 Critical Value for Comparison 5.4349 There are groups (A, B, etc.) in which the means are not significantly different from one another Ch s b nh LSD All-Pairwise Comparisons Test of DLC4 for Congthuc Congthuc Mean Homogeneous Groups 14.073 A 9.923 B 9.480 B 9.260 B 9.187 B 9.113 B 7.557 C Alpha 0.05 Standard Error for Comparison 0.6497 Critical T Value 2.179 Critical Value for Comparison 1.4155 There are groups (A, B, etc.) in which the means are not significantly different from one another B NH GH S T Ngày theo dõi 10/3 T l b nh LSD All-Pairwise Comparisons Test of GST1 for CT CT Mean Homogeneous Groups 44.667 A 41.333 AB 38.000 AB 36.000 AB 34.667 AB 33.333 B 33.333 B Alpha 0.05 Standard Error for Comparison 4.9527 Critical T Value 2.179 Critical Value for Comparison 10.791 There are groups (A and B) in which the means 90 are not significantly different from one another Ch s b nh LSD All-Pairwise Comparisons Test of GSC1 for CT CT Mean Homogeneous Groups 4.9633 A 4.5900 AB 4.2200 AB 4.0000 AB 3.8533 AB 3.7033 B 3.7033 B Alpha 0.05 Standard Error for Comparison 0.5498 Critical T Value 2.179 Critical Value for Comparison 1.1979 There are groups (A and B) in which the means are not significantly different from one another Ngày theo dõi 24/3 T l b nh LSD All-Pairwise Comparisons Test of GST2 for Congthuc Congthuc Mean Homogeneous Groups 92.000 A 76.667 B 70.667 C 69.333 C 65.333 D 63.333 D 56.667 E Alpha 0.05 Standard Error for Comparison 1.2599 Critical T Value 2.179 Critical Value for Comparison 2.7450 There are groups (A, B, etc.) in which the means are not significantly different from one another Ch s b nh LSD All-Pairwise Comparisons Test of GSC2 for Congthuc Congthuc Mean Homogeneous Groups 10.963 A 8.813 B 8.447 BC 8.150 BCD 7.850 CD 7.483 D 6.740 E 91 Alpha 0.05 Standard Error for Comparison 0.3061 Critical T Value 2.179 Critical Value for Comparison 0.6670 There are groups (A, B, etc.) in which the means are not significantly different from one another Ngày theo dõi 7/4 T l b nh LSD All-Pairwise Comparisons Test of GST3 for Congthuc Congthuc Mean Homogeneous Groups 92.667 A 78.667 B 74.000 BC 73.333 C 68.000 D 65.333 D 60.000 E Alpha 0.05 Standard Error for Comparison 2.4473 Critical T Value 2.179 Critical Value for Comparison 5.3323 There are groups (A, B, etc.) in which the means are not significantly different from one another Ch s b nh LSD All-Pairwise Comparisons Test of GSC3 for Congthuc Congthuc Mean Homogeneous Groups 13.257 A 9.930 B 9.703 BC 9.480 BC 8.890 BCD 8.443 CD 8.150 D Alpha 0.05 Standard Error for Comparison 0.5930 Critical T Value 2.179 Critical Value for Comparison 1.2920 There are groups (A, B, etc.) in which the means are not significantly different from one another Ngày theo dõi 21/4 T l b nh LSD All-Pairwise Comparisons Test of GST4 for Congthuc Congthuc Mean Homogeneous Groups 89.333 A 74.667 B 92 73.333 BC 72.667 BC 69.333 CD 66.667 DE 62.667 E Alpha 0.05 Standard Error for Comparison 1.9518 Critical T Value 2.179 Critical Value for Comparison 4.2526 There are groups (A, B, etc.) in which the means are not significantly different from one another Ch s b nh LSD All-Pairwise Comparisons Test of GSC4 for Congthuc Congthuc Mean Homogeneous Groups 17.627 A 14.667 B 14.663 B 14.593 B 13.923 B 13.483 BC 12.443 C Alpha 0.05 Standard Error for Comparison 0.6111 Critical T Value 2.179 Critical Value for Comparison 1.3315 There are groups (A, B, etc.) in which the means are not significantly different from one another CH TIÊU N NG SU T Kh i l ng 100 qu LSD All-Pairwise Comparisons Test of P100 for Congthuc Congthuc Mean Homogeneous Groups 126.23 A 125.33 AB 124.57 ABC 124.47 ABC 123.19 BCD 122.25 CD 121.47 D Alpha 0.05 Standard Error for Comparison 1.1590 Critical T Value 2.179 Critical Value for Comparison 2.5251 There are groups (A, B, etc.) in which the means are not significantly different from one another S qu ch c/cây 93 LSD All-Pairwise Comparisons Test of QUACHAC for Congthuc Congthuc Mean Homogeneous Groups 10.833 A 10.267 AB 9.933 AB 9.933 AB 9.100 B 9.067 B 8.733 B Alpha 0.05 Standard Error for Comparison 0.7178 Critical T Value 2.179 Critical Value for Comparison 1.5639 There are groups (A and B) in which the means are not significantly different from one another S cây/m2 LSD All-Pairwise Comparisons Test of CAYM2 for Congthuc Congthuc Mean Homogeneous Groups 27.333 A 27.333 A 26.667 AB 26.667 AB 26.667 AB 26.000 AB 25.333 B Alpha 0.05 Standard Error for Comparison 0.7127 Critical T Value 2.179 Critical Value for Comparison 1.5528 There are groups (A and B) in which the means are not significantly different from one another N ng su t lý thuy t LSD All-Pairwise Comparisons Test of NSLT for Congthuc Congthuc Mean Homogeneous Groups 27.323 A 25.537 AB 24.887 AB 23.837 B 23.377 BC 22.567 BC 20.113 C Alpha 0.05 Standard Error for Comparison 1.5375 Critical T Value 2.179 Critical Value for Comparison 3.3499 94 There are groups (A, B, etc.) in which the means are not significantly different from one another N ng su t th c thu LSD All-Pairwise Comparisons Test of NSTT for Congthuc Congthuc Mean Homogeneous Groups 21.960 A 21.243 AB 20.970 AB 20.207 BC 19.457 CD 18.580 DE 18.130 E Alpha 0.05 Standard Error for Comparison 0.5822 Critical T Value 2.179 Critical Value for Comparison 1.2684 There are groups (A, B, etc.) in which the means are not significantly different from one another