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result sql = Nature of Sweet Potato Resistance to Meloidogyne incognita and the Effects of Temperature on Parasitism.
Nature of Sweet Potato Resistance to Meloidogyne incognita and the Effects of Temperature on Parasitism.
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char = o;code = 111
char = r;code = 114
char = e;code = 101
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = r;code = 114
char = o;code = 111
char = o;code = 111
char = t;code = 116
char = ;code = 32
char = e;code = 101
char = x;code = 120
char = u;code = 117
char = d;code = 100
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = p;code = 112
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = M;code = 77
char = .;code = 46
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = o;code = 111
char = g;code = 103
char = n;code = 110
char = i;code = 105
char = t;code = 116
char = a;code = 97
char = ;code = 32
char = l;code = 108
char = a;code = 97
char = r;code = 114
char = v;code = 118
char = a;code = 97
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = p;code = 112
char = o;code = 111
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = h;code = 104
char = y;code = 121
char = p;code = 112
char = o;code = 111
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = t;code = 116
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = b;code = 98
char = a;code = 97
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = t;code = 116
char = a;code = 97
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = M;code = 77
char = .;code = 46
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = o;code = 111
char = g;code = 103
char = n;code = 110
char = i;code = 105
char = t;code = 116
char = a;code = 97
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = s;code = 115
char = w;code = 119
char = e;code = 101
char = e;code = 101
char = t;code = 116
char = ;code = 32
char = p;code = 112
char = o;code = 111
char = t;code = 116
char = a;code = 97
char = t;code = 116
char = o;code = 111
char = e;code = 101
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char = b;code = 98
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result sql = Penetration, rate of development, and total population of Meloidogyne incognita in roots of susceptible 'Allgold' and resistant 'Nemagold' sweet potatoes increased with temperature 24-32 C. Rate of larval penetration in 'Allgold' was significantly higher than in 'Nemagold' after 48 hr of root exposure at 24, 28, and 32 C. At 24, 28, and 32 C (16 hr) day and 20 C (8 hr) night temperature the life cycle of M. incognita required 42, 32, and 28 days in 'Allgold', and 44, 33, and 31 days in 'Nemagold'; mature females in the first generation were 40, 40, 40, and 10, 22, 20 respectively. The correlation between the length of time roots were allowed to grow in the soil prior to inoculation and number of larvae recovered from the roots after inoculation was positive for 'Allgold' and negative for 'Nemagold'. Therefore, a root exudate repellent to M. incognita larvae is proposed as a hypothetical basis for resistance to M. incognita in sweet potatoes.

Publication: J. Nematol. 1972 Jan ;4(1)::1-7.
Publication Date: 1972 Jan
Study Author(s): Jatala, P;Russell, C C;
Institution:
Shortcut link to this study:
Penetration, rate of development, and total population of Meloidogyne incognita in roots of susceptible 'Allgold' and resistant 'Nemagold' sweet potatoes increased with temperature 24-32 C. Rate of larval penetration in 'Allgold' was significantly higher than in 'Nemagold' after 48 hr of root exposure at 24, 28, and 32 C. At 24, 28, and 32 C (16 hr) day and 20 C (8 hr) night temperature the life cycle of M. incognita required 42, 32, and 28 days in 'Allgold', and 44, 33, and 31 days in 'Nemagold'; mature females in the first generation were 40, 40, 40, and 10, 22, 20 respectively. The correlation between the length of time roots were allowed to grow in the soil prior to inoculation and number of larvae recovered from the roots after inoculation was positive for 'Allgold' and negative for 'Nemagold'. Therefore, a root exudate repellent to M. incognita larvae is proposed as a hypothetical basis for resistance to M. incognita in sweet potatoes.
PMID: 19319238

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